| 'use strict'; |
| |
| Object.defineProperty(exports, '__esModule', { value: true }); |
| |
| const lineBreak = /\r\n?|[\n\u2028\u2029]/; |
| const lineBreakG = new RegExp(lineBreak.source, "g"); |
| function isNewLine(code) { |
| switch (code) { |
| case 10: |
| case 13: |
| case 8232: |
| case 8233: |
| return true; |
| |
| default: |
| return false; |
| } |
| } |
| const skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g; |
| const skipWhiteSpaceInLine = /(?:[^\S\n\r\u2028\u2029]|\/\/.*|\/\*.*?\*\/)*/y; |
| const skipWhiteSpaceToLineBreak = new RegExp("(?=(" + skipWhiteSpaceInLine.source + "))\\1" + /(?=[\n\r\u2028\u2029]|\/\*(?!.*?\*\/)|$)/.source, "y"); |
| function isWhitespace(code) { |
| switch (code) { |
| case 0x0009: |
| case 0x000b: |
| case 0x000c: |
| case 32: |
| case 160: |
| case 5760: |
| case 0x2000: |
| case 0x2001: |
| case 0x2002: |
| case 0x2003: |
| case 0x2004: |
| case 0x2005: |
| case 0x2006: |
| case 0x2007: |
| case 0x2008: |
| case 0x2009: |
| case 0x200a: |
| case 0x202f: |
| case 0x205f: |
| case 0x3000: |
| case 0xfeff: |
| return true; |
| |
| default: |
| return false; |
| } |
| } |
| |
| class Position { |
| constructor(line, col) { |
| this.line = void 0; |
| this.column = void 0; |
| this.line = line; |
| this.column = col; |
| } |
| |
| } |
| class SourceLocation { |
| constructor(start, end) { |
| this.start = void 0; |
| this.end = void 0; |
| this.filename = void 0; |
| this.identifierName = void 0; |
| this.start = start; |
| this.end = end; |
| } |
| |
| } |
| function getLineInfo(input, offset) { |
| let line = 1; |
| let lineStart = 0; |
| let match; |
| lineBreakG.lastIndex = 0; |
| |
| while ((match = lineBreakG.exec(input)) && match.index < offset) { |
| line++; |
| lineStart = lineBreakG.lastIndex; |
| } |
| |
| return new Position(line, offset - lineStart); |
| } |
| function createPositionWithColumnOffset(position, columnOffset) { |
| const { |
| line, |
| column |
| } = position; |
| return new Position(line, column + columnOffset); |
| } |
| |
| class BaseParser { |
| constructor() { |
| this.sawUnambiguousESM = false; |
| this.ambiguousScriptDifferentAst = false; |
| } |
| |
| hasPlugin(pluginConfig) { |
| if (typeof pluginConfig === "string") { |
| return this.plugins.has(pluginConfig); |
| } else { |
| const [pluginName, pluginOptions] = pluginConfig; |
| |
| if (!this.hasPlugin(pluginName)) { |
| return false; |
| } |
| |
| const actualOptions = this.plugins.get(pluginName); |
| |
| for (const key of Object.keys(pluginOptions)) { |
| if ((actualOptions == null ? void 0 : actualOptions[key]) !== pluginOptions[key]) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| } |
| |
| getPluginOption(plugin, name) { |
| var _this$plugins$get; |
| |
| return (_this$plugins$get = this.plugins.get(plugin)) == null ? void 0 : _this$plugins$get[name]; |
| } |
| |
| } |
| |
| function setTrailingComments(node, comments) { |
| if (node.trailingComments === undefined) { |
| node.trailingComments = comments; |
| } else { |
| node.trailingComments.unshift(...comments); |
| } |
| } |
| |
| function setLeadingComments(node, comments) { |
| if (node.leadingComments === undefined) { |
| node.leadingComments = comments; |
| } else { |
| node.leadingComments.unshift(...comments); |
| } |
| } |
| |
| function setInnerComments(node, comments) { |
| if (node.innerComments === undefined) { |
| node.innerComments = comments; |
| } else { |
| node.innerComments.unshift(...comments); |
| } |
| } |
| |
| function adjustInnerComments(node, elements, commentWS) { |
| let lastElement = null; |
| let i = elements.length; |
| |
| while (lastElement === null && i > 0) { |
| lastElement = elements[--i]; |
| } |
| |
| if (lastElement === null || lastElement.start > commentWS.start) { |
| setInnerComments(node, commentWS.comments); |
| } else { |
| setTrailingComments(lastElement, commentWS.comments); |
| } |
| } |
| |
| class CommentsParser extends BaseParser { |
| addComment(comment) { |
| if (this.filename) comment.loc.filename = this.filename; |
| this.state.comments.push(comment); |
| } |
| |
| processComment(node) { |
| const { |
| commentStack |
| } = this.state; |
| const commentStackLength = commentStack.length; |
| if (commentStackLength === 0) return; |
| let i = commentStackLength - 1; |
| const lastCommentWS = commentStack[i]; |
| |
| if (lastCommentWS.start === node.end) { |
| lastCommentWS.leadingNode = node; |
| i--; |
| } |
| |
| const { |
| start: nodeStart |
| } = node; |
| |
| for (; i >= 0; i--) { |
| const commentWS = commentStack[i]; |
| const commentEnd = commentWS.end; |
| |
| if (commentEnd > nodeStart) { |
| commentWS.containingNode = node; |
| this.finalizeComment(commentWS); |
| commentStack.splice(i, 1); |
| } else { |
| if (commentEnd === nodeStart) { |
| commentWS.trailingNode = node; |
| } |
| |
| break; |
| } |
| } |
| } |
| |
| finalizeComment(commentWS) { |
| const { |
| comments |
| } = commentWS; |
| |
| if (commentWS.leadingNode !== null || commentWS.trailingNode !== null) { |
| if (commentWS.leadingNode !== null) { |
| setTrailingComments(commentWS.leadingNode, comments); |
| } |
| |
| if (commentWS.trailingNode !== null) { |
| setLeadingComments(commentWS.trailingNode, comments); |
| } |
| } else { |
| const { |
| containingNode: node, |
| start: commentStart |
| } = commentWS; |
| |
| if (this.input.charCodeAt(commentStart - 1) === 44) { |
| switch (node.type) { |
| case "ObjectExpression": |
| case "ObjectPattern": |
| case "RecordExpression": |
| adjustInnerComments(node, node.properties, commentWS); |
| break; |
| |
| case "CallExpression": |
| case "OptionalCallExpression": |
| adjustInnerComments(node, node.arguments, commentWS); |
| break; |
| |
| case "FunctionDeclaration": |
| case "FunctionExpression": |
| case "ArrowFunctionExpression": |
| case "ObjectMethod": |
| case "ClassMethod": |
| case "ClassPrivateMethod": |
| adjustInnerComments(node, node.params, commentWS); |
| break; |
| |
| case "ArrayExpression": |
| case "ArrayPattern": |
| case "TupleExpression": |
| adjustInnerComments(node, node.elements, commentWS); |
| break; |
| |
| case "ExportNamedDeclaration": |
| case "ImportDeclaration": |
| adjustInnerComments(node, node.specifiers, commentWS); |
| break; |
| |
| default: |
| { |
| setInnerComments(node, comments); |
| } |
| } |
| } else { |
| setInnerComments(node, comments); |
| } |
| } |
| } |
| |
| finalizeRemainingComments() { |
| const { |
| commentStack |
| } = this.state; |
| |
| for (let i = commentStack.length - 1; i >= 0; i--) { |
| this.finalizeComment(commentStack[i]); |
| } |
| |
| this.state.commentStack = []; |
| } |
| |
| resetPreviousNodeTrailingComments(node) { |
| const { |
| commentStack |
| } = this.state; |
| const { |
| length |
| } = commentStack; |
| if (length === 0) return; |
| const commentWS = commentStack[length - 1]; |
| |
| if (commentWS.leadingNode === node) { |
| commentWS.leadingNode = null; |
| } |
| } |
| |
| takeSurroundingComments(node, start, end) { |
| const { |
| commentStack |
| } = this.state; |
| const commentStackLength = commentStack.length; |
| if (commentStackLength === 0) return; |
| let i = commentStackLength - 1; |
| |
| for (; i >= 0; i--) { |
| const commentWS = commentStack[i]; |
| const commentEnd = commentWS.end; |
| const commentStart = commentWS.start; |
| |
| if (commentStart === end) { |
| commentWS.leadingNode = node; |
| } else if (commentEnd === start) { |
| commentWS.trailingNode = node; |
| } else if (commentEnd < start) { |
| break; |
| } |
| } |
| } |
| |
| } |
| |
| const ErrorCodes = Object.freeze({ |
| SyntaxError: "BABEL_PARSER_SYNTAX_ERROR", |
| SourceTypeModuleError: "BABEL_PARSER_SOURCETYPE_MODULE_REQUIRED" |
| }); |
| |
| const ErrorMessages = makeErrorTemplates({ |
| AccessorIsGenerator: "A %0ter cannot be a generator.", |
| ArgumentsInClass: "'arguments' is only allowed in functions and class methods.", |
| AsyncFunctionInSingleStatementContext: "Async functions can only be declared at the top level or inside a block.", |
| AwaitBindingIdentifier: "Can not use 'await' as identifier inside an async function.", |
| AwaitBindingIdentifierInStaticBlock: "Can not use 'await' as identifier inside a static block.", |
| AwaitExpressionFormalParameter: "'await' is not allowed in async function parameters.", |
| AwaitNotInAsyncContext: "'await' is only allowed within async functions and at the top levels of modules.", |
| AwaitNotInAsyncFunction: "'await' is only allowed within async functions.", |
| BadGetterArity: "A 'get' accesor must not have any formal parameters.", |
| BadSetterArity: "A 'set' accesor must have exactly one formal parameter.", |
| BadSetterRestParameter: "A 'set' accesor function argument must not be a rest parameter.", |
| ConstructorClassField: "Classes may not have a field named 'constructor'.", |
| ConstructorClassPrivateField: "Classes may not have a private field named '#constructor'.", |
| ConstructorIsAccessor: "Class constructor may not be an accessor.", |
| ConstructorIsAsync: "Constructor can't be an async function.", |
| ConstructorIsGenerator: "Constructor can't be a generator.", |
| DeclarationMissingInitializer: "'%0' require an initialization value.", |
| DecoratorBeforeExport: "Decorators must be placed *before* the 'export' keyword. You can set the 'decoratorsBeforeExport' option to false to use the 'export @decorator class {}' syntax.", |
| DecoratorConstructor: "Decorators can't be used with a constructor. Did you mean '@dec class { ... }'?", |
| DecoratorExportClass: "Using the export keyword between a decorator and a class is not allowed. Please use `export @dec class` instead.", |
| DecoratorSemicolon: "Decorators must not be followed by a semicolon.", |
| DecoratorStaticBlock: "Decorators can't be used with a static block.", |
| DeletePrivateField: "Deleting a private field is not allowed.", |
| DestructureNamedImport: "ES2015 named imports do not destructure. Use another statement for destructuring after the import.", |
| DuplicateConstructor: "Duplicate constructor in the same class.", |
| DuplicateDefaultExport: "Only one default export allowed per module.", |
| DuplicateExport: "`%0` has already been exported. Exported identifiers must be unique.", |
| DuplicateProto: "Redefinition of __proto__ property.", |
| DuplicateRegExpFlags: "Duplicate regular expression flag.", |
| ElementAfterRest: "Rest element must be last element.", |
| EscapedCharNotAnIdentifier: "Invalid Unicode escape.", |
| ExportBindingIsString: "A string literal cannot be used as an exported binding without `from`.\n- Did you mean `export { '%0' as '%1' } from 'some-module'`?", |
| ExportDefaultFromAsIdentifier: "'from' is not allowed as an identifier after 'export default'.", |
| ForInOfLoopInitializer: "'%0' loop variable declaration may not have an initializer.", |
| ForOfAsync: "The left-hand side of a for-of loop may not be 'async'.", |
| ForOfLet: "The left-hand side of a for-of loop may not start with 'let'.", |
| GeneratorInSingleStatementContext: "Generators can only be declared at the top level or inside a block.", |
| IllegalBreakContinue: "Unsyntactic %0.", |
| IllegalLanguageModeDirective: "Illegal 'use strict' directive in function with non-simple parameter list.", |
| IllegalReturn: "'return' outside of function.", |
| ImportBindingIsString: 'A string literal cannot be used as an imported binding.\n- Did you mean `import { "%0" as foo }`?', |
| ImportCallArgumentTrailingComma: "Trailing comma is disallowed inside import(...) arguments.", |
| ImportCallArity: "`import()` requires exactly %0.", |
| ImportCallNotNewExpression: "Cannot use new with import(...).", |
| ImportCallSpreadArgument: "`...` is not allowed in `import()`.", |
| InvalidBigIntLiteral: "Invalid BigIntLiteral.", |
| InvalidCodePoint: "Code point out of bounds.", |
| InvalidCoverInitializedName: "Invalid shorthand property initializer.", |
| InvalidDecimal: "Invalid decimal.", |
| InvalidDigit: "Expected number in radix %0.", |
| InvalidEscapeSequence: "Bad character escape sequence.", |
| InvalidEscapeSequenceTemplate: "Invalid escape sequence in template.", |
| InvalidEscapedReservedWord: "Escape sequence in keyword %0.", |
| InvalidIdentifier: "Invalid identifier %0.", |
| InvalidLhs: "Invalid left-hand side in %0.", |
| InvalidLhsBinding: "Binding invalid left-hand side in %0.", |
| InvalidNumber: "Invalid number.", |
| InvalidOrMissingExponent: "Floating-point numbers require a valid exponent after the 'e'.", |
| InvalidOrUnexpectedToken: "Unexpected character '%0'.", |
| InvalidParenthesizedAssignment: "Invalid parenthesized assignment pattern.", |
| InvalidPrivateFieldResolution: "Private name #%0 is not defined.", |
| InvalidPropertyBindingPattern: "Binding member expression.", |
| InvalidRecordProperty: "Only properties and spread elements are allowed in record definitions.", |
| InvalidRestAssignmentPattern: "Invalid rest operator's argument.", |
| LabelRedeclaration: "Label '%0' is already declared.", |
| LetInLexicalBinding: "'let' is not allowed to be used as a name in 'let' or 'const' declarations.", |
| LineTerminatorBeforeArrow: "No line break is allowed before '=>'.", |
| MalformedRegExpFlags: "Invalid regular expression flag.", |
| MissingClassName: "A class name is required.", |
| MissingEqInAssignment: "Only '=' operator can be used for specifying default value.", |
| MissingSemicolon: "Missing semicolon.", |
| MissingUnicodeEscape: "Expecting Unicode escape sequence \\uXXXX.", |
| MixingCoalesceWithLogical: "Nullish coalescing operator(??) requires parens when mixing with logical operators.", |
| ModuleAttributeDifferentFromType: "The only accepted module attribute is `type`.", |
| ModuleAttributeInvalidValue: "Only string literals are allowed as module attribute values.", |
| ModuleAttributesWithDuplicateKeys: 'Duplicate key "%0" is not allowed in module attributes.', |
| ModuleExportNameHasLoneSurrogate: "An export name cannot include a lone surrogate, found '\\u%0'.", |
| ModuleExportUndefined: "Export '%0' is not defined.", |
| MultipleDefaultsInSwitch: "Multiple default clauses.", |
| NewlineAfterThrow: "Illegal newline after throw.", |
| NoCatchOrFinally: "Missing catch or finally clause.", |
| NumberIdentifier: "Identifier directly after number.", |
| NumericSeparatorInEscapeSequence: "Numeric separators are not allowed inside unicode escape sequences or hex escape sequences.", |
| ObsoleteAwaitStar: "'await*' has been removed from the async functions proposal. Use Promise.all() instead.", |
| OptionalChainingNoNew: "Constructors in/after an Optional Chain are not allowed.", |
| OptionalChainingNoTemplate: "Tagged Template Literals are not allowed in optionalChain.", |
| OverrideOnConstructor: "'override' modifier cannot appear on a constructor declaration.", |
| ParamDupe: "Argument name clash.", |
| PatternHasAccessor: "Object pattern can't contain getter or setter.", |
| PatternHasMethod: "Object pattern can't contain methods.", |
| PipeBodyIsTighter: "Unexpected %0 after pipeline body; any %0 expression acting as Hack-style pipe body must be parenthesized due to its loose operator precedence.", |
| PipeTopicRequiresHackPipes: 'Topic reference is used, but the pipelineOperator plugin was not passed a "proposal": "hack" or "smart" option.', |
| PipeTopicUnbound: "Topic reference is unbound; it must be inside a pipe body.", |
| PipeTopicUnconfiguredToken: 'Invalid topic token %0. In order to use %0 as a topic reference, the pipelineOperator plugin must be configured with { "proposal": "hack", "topicToken": "%0" }.', |
| PipeTopicUnused: "Hack-style pipe body does not contain a topic reference; Hack-style pipes must use topic at least once.", |
| PipeUnparenthesizedBody: "Hack-style pipe body cannot be an unparenthesized %0 expression; please wrap it in parentheses.", |
| PipelineBodyNoArrow: 'Unexpected arrow "=>" after pipeline body; arrow function in pipeline body must be parenthesized.', |
| PipelineBodySequenceExpression: "Pipeline body may not be a comma-separated sequence expression.", |
| PipelineHeadSequenceExpression: "Pipeline head should not be a comma-separated sequence expression.", |
| PipelineTopicUnused: "Pipeline is in topic style but does not use topic reference.", |
| PrimaryTopicNotAllowed: "Topic reference was used in a lexical context without topic binding.", |
| PrimaryTopicRequiresSmartPipeline: 'Topic reference is used, but the pipelineOperator plugin was not passed a "proposal": "hack" or "smart" option.', |
| PrivateInExpectedIn: "Private names are only allowed in property accesses (`obj.#%0`) or in `in` expressions (`#%0 in obj`).", |
| PrivateNameRedeclaration: "Duplicate private name #%0.", |
| RecordExpressionBarIncorrectEndSyntaxType: "Record expressions ending with '|}' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'.", |
| RecordExpressionBarIncorrectStartSyntaxType: "Record expressions starting with '{|' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'.", |
| RecordExpressionHashIncorrectStartSyntaxType: "Record expressions starting with '#{' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'hash'.", |
| RecordNoProto: "'__proto__' is not allowed in Record expressions.", |
| RestTrailingComma: "Unexpected trailing comma after rest element.", |
| SloppyFunction: "In non-strict mode code, functions can only be declared at top level, inside a block, or as the body of an if statement.", |
| StaticPrototype: "Classes may not have static property named prototype.", |
| StrictDelete: "Deleting local variable in strict mode.", |
| StrictEvalArguments: "Assigning to '%0' in strict mode.", |
| StrictEvalArgumentsBinding: "Binding '%0' in strict mode.", |
| StrictFunction: "In strict mode code, functions can only be declared at top level or inside a block.", |
| StrictNumericEscape: "The only valid numeric escape in strict mode is '\\0'.", |
| StrictOctalLiteral: "Legacy octal literals are not allowed in strict mode.", |
| StrictWith: "'with' in strict mode.", |
| SuperNotAllowed: "`super()` is only valid inside a class constructor of a subclass. Maybe a typo in the method name ('constructor') or not extending another class?", |
| SuperPrivateField: "Private fields can't be accessed on super.", |
| TrailingDecorator: "Decorators must be attached to a class element.", |
| TupleExpressionBarIncorrectEndSyntaxType: "Tuple expressions ending with '|]' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'.", |
| TupleExpressionBarIncorrectStartSyntaxType: "Tuple expressions starting with '[|' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'.", |
| TupleExpressionHashIncorrectStartSyntaxType: "Tuple expressions starting with '#[' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'hash'.", |
| UnexpectedArgumentPlaceholder: "Unexpected argument placeholder.", |
| UnexpectedAwaitAfterPipelineBody: 'Unexpected "await" after pipeline body; await must have parentheses in minimal proposal.', |
| UnexpectedDigitAfterHash: "Unexpected digit after hash token.", |
| UnexpectedImportExport: "'import' and 'export' may only appear at the top level.", |
| UnexpectedKeyword: "Unexpected keyword '%0'.", |
| UnexpectedLeadingDecorator: "Leading decorators must be attached to a class declaration.", |
| UnexpectedLexicalDeclaration: "Lexical declaration cannot appear in a single-statement context.", |
| UnexpectedNewTarget: "`new.target` can only be used in functions or class properties.", |
| UnexpectedNumericSeparator: "A numeric separator is only allowed between two digits.", |
| UnexpectedPrivateField: "Unexpected private name.", |
| UnexpectedReservedWord: "Unexpected reserved word '%0'.", |
| UnexpectedSuper: "'super' is only allowed in object methods and classes.", |
| UnexpectedToken: "Unexpected token '%0'.", |
| UnexpectedTokenUnaryExponentiation: "Illegal expression. Wrap left hand side or entire exponentiation in parentheses.", |
| UnsupportedBind: "Binding should be performed on object property.", |
| UnsupportedDecoratorExport: "A decorated export must export a class declaration.", |
| UnsupportedDefaultExport: "Only expressions, functions or classes are allowed as the `default` export.", |
| UnsupportedImport: "`import` can only be used in `import()` or `import.meta`.", |
| UnsupportedMetaProperty: "The only valid meta property for %0 is %0.%1.", |
| UnsupportedParameterDecorator: "Decorators cannot be used to decorate parameters.", |
| UnsupportedPropertyDecorator: "Decorators cannot be used to decorate object literal properties.", |
| UnsupportedSuper: "'super' can only be used with function calls (i.e. super()) or in property accesses (i.e. super.prop or super[prop]).", |
| UnterminatedComment: "Unterminated comment.", |
| UnterminatedRegExp: "Unterminated regular expression.", |
| UnterminatedString: "Unterminated string constant.", |
| UnterminatedTemplate: "Unterminated template.", |
| VarRedeclaration: "Identifier '%0' has already been declared.", |
| YieldBindingIdentifier: "Can not use 'yield' as identifier inside a generator.", |
| YieldInParameter: "Yield expression is not allowed in formal parameters.", |
| ZeroDigitNumericSeparator: "Numeric separator can not be used after leading 0." |
| }, ErrorCodes.SyntaxError); |
| const SourceTypeModuleErrorMessages = makeErrorTemplates({ |
| ImportMetaOutsideModule: `import.meta may appear only with 'sourceType: "module"'`, |
| ImportOutsideModule: `'import' and 'export' may appear only with 'sourceType: "module"'` |
| }, ErrorCodes.SourceTypeModuleError); |
| |
| function keepReasonCodeCompat(reasonCode, syntaxPlugin) { |
| { |
| if (syntaxPlugin === "flow" && reasonCode === "PatternIsOptional") { |
| return "OptionalBindingPattern"; |
| } |
| } |
| return reasonCode; |
| } |
| |
| function makeErrorTemplates(messages, code, syntaxPlugin) { |
| const templates = {}; |
| Object.keys(messages).forEach(reasonCode => { |
| templates[reasonCode] = Object.freeze({ |
| code, |
| reasonCode: keepReasonCodeCompat(reasonCode, syntaxPlugin), |
| template: messages[reasonCode] |
| }); |
| }); |
| return Object.freeze(templates); |
| } |
| class ParserError extends CommentsParser { |
| getLocationForPosition(pos) { |
| let loc; |
| if (pos === this.state.start) loc = this.state.startLoc;else if (pos === this.state.lastTokStart) loc = this.state.lastTokStartLoc;else if (pos === this.state.end) loc = this.state.endLoc;else if (pos === this.state.lastTokEnd) loc = this.state.lastTokEndLoc;else loc = getLineInfo(this.input, pos); |
| return loc; |
| } |
| |
| raise(pos, { |
| code, |
| reasonCode, |
| template |
| }, ...params) { |
| return this.raiseWithData(pos, { |
| code, |
| reasonCode |
| }, template, ...params); |
| } |
| |
| raiseOverwrite(pos, { |
| code, |
| template |
| }, ...params) { |
| const loc = this.getLocationForPosition(pos); |
| const message = template.replace(/%(\d+)/g, (_, i) => params[i]) + ` (${loc.line}:${loc.column})`; |
| |
| if (this.options.errorRecovery) { |
| const errors = this.state.errors; |
| |
| for (let i = errors.length - 1; i >= 0; i--) { |
| const error = errors[i]; |
| |
| if (error.pos === pos) { |
| return Object.assign(error, { |
| message |
| }); |
| } else if (error.pos < pos) { |
| break; |
| } |
| } |
| } |
| |
| return this._raise({ |
| code, |
| loc, |
| pos |
| }, message); |
| } |
| |
| raiseWithData(pos, data, errorTemplate, ...params) { |
| const loc = this.getLocationForPosition(pos); |
| const message = errorTemplate.replace(/%(\d+)/g, (_, i) => params[i]) + ` (${loc.line}:${loc.column})`; |
| return this._raise(Object.assign({ |
| loc, |
| pos |
| }, data), message); |
| } |
| |
| _raise(errorContext, message) { |
| const err = new SyntaxError(message); |
| Object.assign(err, errorContext); |
| |
| if (this.options.errorRecovery) { |
| if (!this.isLookahead) this.state.errors.push(err); |
| return err; |
| } else { |
| throw err; |
| } |
| } |
| |
| } |
| |
| var estree = (superClass => class extends superClass { |
| parseRegExpLiteral({ |
| pattern, |
| flags |
| }) { |
| let regex = null; |
| |
| try { |
| regex = new RegExp(pattern, flags); |
| } catch (e) {} |
| |
| const node = this.estreeParseLiteral(regex); |
| node.regex = { |
| pattern, |
| flags |
| }; |
| return node; |
| } |
| |
| parseBigIntLiteral(value) { |
| let bigInt; |
| |
| try { |
| bigInt = BigInt(value); |
| } catch (_unused) { |
| bigInt = null; |
| } |
| |
| const node = this.estreeParseLiteral(bigInt); |
| node.bigint = String(node.value || value); |
| return node; |
| } |
| |
| parseDecimalLiteral(value) { |
| const decimal = null; |
| const node = this.estreeParseLiteral(decimal); |
| node.decimal = String(node.value || value); |
| return node; |
| } |
| |
| estreeParseLiteral(value) { |
| return this.parseLiteral(value, "Literal"); |
| } |
| |
| parseStringLiteral(value) { |
| return this.estreeParseLiteral(value); |
| } |
| |
| parseNumericLiteral(value) { |
| return this.estreeParseLiteral(value); |
| } |
| |
| parseNullLiteral() { |
| return this.estreeParseLiteral(null); |
| } |
| |
| parseBooleanLiteral(value) { |
| return this.estreeParseLiteral(value); |
| } |
| |
| directiveToStmt(directive) { |
| const directiveLiteral = directive.value; |
| const stmt = this.startNodeAt(directive.start, directive.loc.start); |
| const expression = this.startNodeAt(directiveLiteral.start, directiveLiteral.loc.start); |
| expression.value = directiveLiteral.extra.expressionValue; |
| expression.raw = directiveLiteral.extra.raw; |
| stmt.expression = this.finishNodeAt(expression, "Literal", directiveLiteral.end, directiveLiteral.loc.end); |
| stmt.directive = directiveLiteral.extra.raw.slice(1, -1); |
| return this.finishNodeAt(stmt, "ExpressionStatement", directive.end, directive.loc.end); |
| } |
| |
| initFunction(node, isAsync) { |
| super.initFunction(node, isAsync); |
| node.expression = false; |
| } |
| |
| checkDeclaration(node) { |
| if (node != null && this.isObjectProperty(node)) { |
| this.checkDeclaration(node.value); |
| } else { |
| super.checkDeclaration(node); |
| } |
| } |
| |
| getObjectOrClassMethodParams(method) { |
| return method.value.params; |
| } |
| |
| isValidDirective(stmt) { |
| var _stmt$expression$extr; |
| |
| return stmt.type === "ExpressionStatement" && stmt.expression.type === "Literal" && typeof stmt.expression.value === "string" && !((_stmt$expression$extr = stmt.expression.extra) != null && _stmt$expression$extr.parenthesized); |
| } |
| |
| parseBlockBody(node, ...args) { |
| super.parseBlockBody(node, ...args); |
| const directiveStatements = node.directives.map(d => this.directiveToStmt(d)); |
| node.body = directiveStatements.concat(node.body); |
| delete node.directives; |
| } |
| |
| pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper) { |
| this.parseMethod(method, isGenerator, isAsync, isConstructor, allowsDirectSuper, "ClassMethod", true); |
| |
| if (method.typeParameters) { |
| method.value.typeParameters = method.typeParameters; |
| delete method.typeParameters; |
| } |
| |
| classBody.body.push(method); |
| } |
| |
| parsePrivateName() { |
| const node = super.parsePrivateName(); |
| { |
| if (!this.getPluginOption("estree", "classFeatures")) { |
| return node; |
| } |
| } |
| return this.convertPrivateNameToPrivateIdentifier(node); |
| } |
| |
| convertPrivateNameToPrivateIdentifier(node) { |
| const name = super.getPrivateNameSV(node); |
| node = node; |
| delete node.id; |
| node.name = name; |
| node.type = "PrivateIdentifier"; |
| return node; |
| } |
| |
| isPrivateName(node) { |
| { |
| if (!this.getPluginOption("estree", "classFeatures")) { |
| return super.isPrivateName(node); |
| } |
| } |
| return node.type === "PrivateIdentifier"; |
| } |
| |
| getPrivateNameSV(node) { |
| { |
| if (!this.getPluginOption("estree", "classFeatures")) { |
| return super.getPrivateNameSV(node); |
| } |
| } |
| return node.name; |
| } |
| |
| parseLiteral(value, type) { |
| const node = super.parseLiteral(value, type); |
| node.raw = node.extra.raw; |
| delete node.extra; |
| return node; |
| } |
| |
| parseFunctionBody(node, allowExpression, isMethod = false) { |
| super.parseFunctionBody(node, allowExpression, isMethod); |
| node.expression = node.body.type !== "BlockStatement"; |
| } |
| |
| parseMethod(node, isGenerator, isAsync, isConstructor, allowDirectSuper, type, inClassScope = false) { |
| let funcNode = this.startNode(); |
| funcNode.kind = node.kind; |
| funcNode = super.parseMethod(funcNode, isGenerator, isAsync, isConstructor, allowDirectSuper, type, inClassScope); |
| funcNode.type = "FunctionExpression"; |
| delete funcNode.kind; |
| node.value = funcNode; |
| |
| if (type === "ClassPrivateMethod") { |
| node.computed = false; |
| } |
| |
| type = "MethodDefinition"; |
| return this.finishNode(node, type); |
| } |
| |
| parseClassProperty(...args) { |
| const propertyNode = super.parseClassProperty(...args); |
| { |
| if (!this.getPluginOption("estree", "classFeatures")) { |
| return propertyNode; |
| } |
| } |
| propertyNode.type = "PropertyDefinition"; |
| return propertyNode; |
| } |
| |
| parseClassPrivateProperty(...args) { |
| const propertyNode = super.parseClassPrivateProperty(...args); |
| { |
| if (!this.getPluginOption("estree", "classFeatures")) { |
| return propertyNode; |
| } |
| } |
| propertyNode.type = "PropertyDefinition"; |
| propertyNode.computed = false; |
| return propertyNode; |
| } |
| |
| parseObjectMethod(prop, isGenerator, isAsync, isPattern, isAccessor) { |
| const node = super.parseObjectMethod(prop, isGenerator, isAsync, isPattern, isAccessor); |
| |
| if (node) { |
| node.type = "Property"; |
| if (node.kind === "method") node.kind = "init"; |
| node.shorthand = false; |
| } |
| |
| return node; |
| } |
| |
| parseObjectProperty(prop, startPos, startLoc, isPattern, refExpressionErrors) { |
| const node = super.parseObjectProperty(prop, startPos, startLoc, isPattern, refExpressionErrors); |
| |
| if (node) { |
| node.kind = "init"; |
| node.type = "Property"; |
| } |
| |
| return node; |
| } |
| |
| isAssignable(node, isBinding) { |
| if (node != null && this.isObjectProperty(node)) { |
| return this.isAssignable(node.value, isBinding); |
| } |
| |
| return super.isAssignable(node, isBinding); |
| } |
| |
| toAssignable(node, isLHS = false) { |
| if (node != null && this.isObjectProperty(node)) { |
| this.toAssignable(node.value, isLHS); |
| return node; |
| } |
| |
| return super.toAssignable(node, isLHS); |
| } |
| |
| toAssignableObjectExpressionProp(prop, ...args) { |
| if (prop.kind === "get" || prop.kind === "set") { |
| this.raise(prop.key.start, ErrorMessages.PatternHasAccessor); |
| } else if (prop.method) { |
| this.raise(prop.key.start, ErrorMessages.PatternHasMethod); |
| } else { |
| super.toAssignableObjectExpressionProp(prop, ...args); |
| } |
| } |
| |
| finishCallExpression(node, optional) { |
| super.finishCallExpression(node, optional); |
| |
| if (node.callee.type === "Import") { |
| node.type = "ImportExpression"; |
| node.source = node.arguments[0]; |
| |
| if (this.hasPlugin("importAssertions")) { |
| var _node$arguments$; |
| |
| node.attributes = (_node$arguments$ = node.arguments[1]) != null ? _node$arguments$ : null; |
| } |
| |
| delete node.arguments; |
| delete node.callee; |
| } |
| |
| return node; |
| } |
| |
| toReferencedArguments(node) { |
| if (node.type === "ImportExpression") { |
| return; |
| } |
| |
| super.toReferencedArguments(node); |
| } |
| |
| parseExport(node) { |
| super.parseExport(node); |
| |
| switch (node.type) { |
| case "ExportAllDeclaration": |
| node.exported = null; |
| break; |
| |
| case "ExportNamedDeclaration": |
| if (node.specifiers.length === 1 && node.specifiers[0].type === "ExportNamespaceSpecifier") { |
| node.type = "ExportAllDeclaration"; |
| node.exported = node.specifiers[0].exported; |
| delete node.specifiers; |
| } |
| |
| break; |
| } |
| |
| return node; |
| } |
| |
| parseSubscript(base, startPos, startLoc, noCalls, state) { |
| const node = super.parseSubscript(base, startPos, startLoc, noCalls, state); |
| |
| if (state.optionalChainMember) { |
| if (node.type === "OptionalMemberExpression" || node.type === "OptionalCallExpression") { |
| node.type = node.type.substring(8); |
| } |
| |
| if (state.stop) { |
| const chain = this.startNodeAtNode(node); |
| chain.expression = node; |
| return this.finishNode(chain, "ChainExpression"); |
| } |
| } else if (node.type === "MemberExpression" || node.type === "CallExpression") { |
| node.optional = false; |
| } |
| |
| return node; |
| } |
| |
| hasPropertyAsPrivateName(node) { |
| if (node.type === "ChainExpression") { |
| node = node.expression; |
| } |
| |
| return super.hasPropertyAsPrivateName(node); |
| } |
| |
| isOptionalChain(node) { |
| return node.type === "ChainExpression"; |
| } |
| |
| isObjectProperty(node) { |
| return node.type === "Property" && node.kind === "init" && !node.method; |
| } |
| |
| isObjectMethod(node) { |
| return node.method || node.kind === "get" || node.kind === "set"; |
| } |
| |
| }); |
| |
| class TokContext { |
| constructor(token, preserveSpace) { |
| this.token = void 0; |
| this.preserveSpace = void 0; |
| this.token = token; |
| this.preserveSpace = !!preserveSpace; |
| } |
| |
| } |
| const types = { |
| brace: new TokContext("{"), |
| j_oTag: new TokContext("<tag"), |
| j_cTag: new TokContext("</tag"), |
| j_expr: new TokContext("<tag>...</tag>", true) |
| }; |
| { |
| types.template = new TokContext("`", true); |
| } |
| |
| const beforeExpr = true; |
| const startsExpr = true; |
| const isLoop = true; |
| const isAssign = true; |
| const prefix = true; |
| const postfix = true; |
| class ExportedTokenType { |
| constructor(label, conf = {}) { |
| this.label = void 0; |
| this.keyword = void 0; |
| this.beforeExpr = void 0; |
| this.startsExpr = void 0; |
| this.rightAssociative = void 0; |
| this.isLoop = void 0; |
| this.isAssign = void 0; |
| this.prefix = void 0; |
| this.postfix = void 0; |
| this.binop = void 0; |
| this.label = label; |
| this.keyword = conf.keyword; |
| this.beforeExpr = !!conf.beforeExpr; |
| this.startsExpr = !!conf.startsExpr; |
| this.rightAssociative = !!conf.rightAssociative; |
| this.isLoop = !!conf.isLoop; |
| this.isAssign = !!conf.isAssign; |
| this.prefix = !!conf.prefix; |
| this.postfix = !!conf.postfix; |
| this.binop = conf.binop != null ? conf.binop : null; |
| { |
| this.updateContext = null; |
| } |
| } |
| |
| } |
| const keywords$1 = new Map(); |
| |
| function createKeyword(name, options = {}) { |
| options.keyword = name; |
| const token = createToken(name, options); |
| keywords$1.set(name, token); |
| return token; |
| } |
| |
| function createBinop(name, binop) { |
| return createToken(name, { |
| beforeExpr, |
| binop |
| }); |
| } |
| |
| let tokenTypeCounter = -1; |
| const tokenTypes = []; |
| const tokenLabels = []; |
| const tokenBinops = []; |
| const tokenBeforeExprs = []; |
| const tokenStartsExprs = []; |
| const tokenPrefixes = []; |
| |
| function createToken(name, options = {}) { |
| var _options$binop, _options$beforeExpr, _options$startsExpr, _options$prefix; |
| |
| ++tokenTypeCounter; |
| tokenLabels.push(name); |
| tokenBinops.push((_options$binop = options.binop) != null ? _options$binop : -1); |
| tokenBeforeExprs.push((_options$beforeExpr = options.beforeExpr) != null ? _options$beforeExpr : false); |
| tokenStartsExprs.push((_options$startsExpr = options.startsExpr) != null ? _options$startsExpr : false); |
| tokenPrefixes.push((_options$prefix = options.prefix) != null ? _options$prefix : false); |
| tokenTypes.push(new ExportedTokenType(name, options)); |
| return tokenTypeCounter; |
| } |
| |
| function createKeywordLike(name, options = {}) { |
| var _options$binop2, _options$beforeExpr2, _options$startsExpr2, _options$prefix2; |
| |
| ++tokenTypeCounter; |
| keywords$1.set(name, tokenTypeCounter); |
| tokenLabels.push(name); |
| tokenBinops.push((_options$binop2 = options.binop) != null ? _options$binop2 : -1); |
| tokenBeforeExprs.push((_options$beforeExpr2 = options.beforeExpr) != null ? _options$beforeExpr2 : false); |
| tokenStartsExprs.push((_options$startsExpr2 = options.startsExpr) != null ? _options$startsExpr2 : false); |
| tokenPrefixes.push((_options$prefix2 = options.prefix) != null ? _options$prefix2 : false); |
| tokenTypes.push(new ExportedTokenType("name", options)); |
| return tokenTypeCounter; |
| } |
| |
| const tt = { |
| bracketL: createToken("[", { |
| beforeExpr, |
| startsExpr |
| }), |
| bracketHashL: createToken("#[", { |
| beforeExpr, |
| startsExpr |
| }), |
| bracketBarL: createToken("[|", { |
| beforeExpr, |
| startsExpr |
| }), |
| bracketR: createToken("]"), |
| bracketBarR: createToken("|]"), |
| braceL: createToken("{", { |
| beforeExpr, |
| startsExpr |
| }), |
| braceBarL: createToken("{|", { |
| beforeExpr, |
| startsExpr |
| }), |
| braceHashL: createToken("#{", { |
| beforeExpr, |
| startsExpr |
| }), |
| braceR: createToken("}", { |
| beforeExpr |
| }), |
| braceBarR: createToken("|}"), |
| parenL: createToken("(", { |
| beforeExpr, |
| startsExpr |
| }), |
| parenR: createToken(")"), |
| comma: createToken(",", { |
| beforeExpr |
| }), |
| semi: createToken(";", { |
| beforeExpr |
| }), |
| colon: createToken(":", { |
| beforeExpr |
| }), |
| doubleColon: createToken("::", { |
| beforeExpr |
| }), |
| dot: createToken("."), |
| question: createToken("?", { |
| beforeExpr |
| }), |
| questionDot: createToken("?."), |
| arrow: createToken("=>", { |
| beforeExpr |
| }), |
| template: createToken("template"), |
| ellipsis: createToken("...", { |
| beforeExpr |
| }), |
| backQuote: createToken("`", { |
| startsExpr |
| }), |
| dollarBraceL: createToken("${", { |
| beforeExpr, |
| startsExpr |
| }), |
| templateTail: createToken("...`", { |
| startsExpr |
| }), |
| templateNonTail: createToken("...${", { |
| beforeExpr, |
| startsExpr |
| }), |
| at: createToken("@"), |
| hash: createToken("#", { |
| startsExpr |
| }), |
| interpreterDirective: createToken("#!..."), |
| eq: createToken("=", { |
| beforeExpr, |
| isAssign |
| }), |
| assign: createToken("_=", { |
| beforeExpr, |
| isAssign |
| }), |
| slashAssign: createToken("_=", { |
| beforeExpr, |
| isAssign |
| }), |
| xorAssign: createToken("_=", { |
| beforeExpr, |
| isAssign |
| }), |
| moduloAssign: createToken("_=", { |
| beforeExpr, |
| isAssign |
| }), |
| incDec: createToken("++/--", { |
| prefix, |
| postfix, |
| startsExpr |
| }), |
| bang: createToken("!", { |
| beforeExpr, |
| prefix, |
| startsExpr |
| }), |
| tilde: createToken("~", { |
| beforeExpr, |
| prefix, |
| startsExpr |
| }), |
| pipeline: createBinop("|>", 0), |
| nullishCoalescing: createBinop("??", 1), |
| logicalOR: createBinop("||", 1), |
| logicalAND: createBinop("&&", 2), |
| bitwiseOR: createBinop("|", 3), |
| bitwiseXOR: createBinop("^", 4), |
| bitwiseAND: createBinop("&", 5), |
| equality: createBinop("==/!=/===/!==", 6), |
| lt: createBinop("</>/<=/>=", 7), |
| gt: createBinop("</>/<=/>=", 7), |
| relational: createBinop("</>/<=/>=", 7), |
| bitShift: createBinop("<</>>/>>>", 8), |
| plusMin: createToken("+/-", { |
| beforeExpr, |
| binop: 9, |
| prefix, |
| startsExpr |
| }), |
| modulo: createToken("%", { |
| binop: 10, |
| startsExpr |
| }), |
| star: createToken("*", { |
| binop: 10 |
| }), |
| slash: createBinop("/", 10), |
| exponent: createToken("**", { |
| beforeExpr, |
| binop: 11, |
| rightAssociative: true |
| }), |
| _in: createKeyword("in", { |
| beforeExpr, |
| binop: 7 |
| }), |
| _instanceof: createKeyword("instanceof", { |
| beforeExpr, |
| binop: 7 |
| }), |
| _break: createKeyword("break"), |
| _case: createKeyword("case", { |
| beforeExpr |
| }), |
| _catch: createKeyword("catch"), |
| _continue: createKeyword("continue"), |
| _debugger: createKeyword("debugger"), |
| _default: createKeyword("default", { |
| beforeExpr |
| }), |
| _else: createKeyword("else", { |
| beforeExpr |
| }), |
| _finally: createKeyword("finally"), |
| _function: createKeyword("function", { |
| startsExpr |
| }), |
| _if: createKeyword("if"), |
| _return: createKeyword("return", { |
| beforeExpr |
| }), |
| _switch: createKeyword("switch"), |
| _throw: createKeyword("throw", { |
| beforeExpr, |
| prefix, |
| startsExpr |
| }), |
| _try: createKeyword("try"), |
| _var: createKeyword("var"), |
| _const: createKeyword("const"), |
| _with: createKeyword("with"), |
| _new: createKeyword("new", { |
| beforeExpr, |
| startsExpr |
| }), |
| _this: createKeyword("this", { |
| startsExpr |
| }), |
| _super: createKeyword("super", { |
| startsExpr |
| }), |
| _class: createKeyword("class", { |
| startsExpr |
| }), |
| _extends: createKeyword("extends", { |
| beforeExpr |
| }), |
| _export: createKeyword("export"), |
| _import: createKeyword("import", { |
| startsExpr |
| }), |
| _null: createKeyword("null", { |
| startsExpr |
| }), |
| _true: createKeyword("true", { |
| startsExpr |
| }), |
| _false: createKeyword("false", { |
| startsExpr |
| }), |
| _typeof: createKeyword("typeof", { |
| beforeExpr, |
| prefix, |
| startsExpr |
| }), |
| _void: createKeyword("void", { |
| beforeExpr, |
| prefix, |
| startsExpr |
| }), |
| _delete: createKeyword("delete", { |
| beforeExpr, |
| prefix, |
| startsExpr |
| }), |
| _do: createKeyword("do", { |
| isLoop, |
| beforeExpr |
| }), |
| _for: createKeyword("for", { |
| isLoop |
| }), |
| _while: createKeyword("while", { |
| isLoop |
| }), |
| _as: createKeywordLike("as", { |
| startsExpr |
| }), |
| _assert: createKeywordLike("assert", { |
| startsExpr |
| }), |
| _async: createKeywordLike("async", { |
| startsExpr |
| }), |
| _await: createKeywordLike("await", { |
| startsExpr |
| }), |
| _from: createKeywordLike("from", { |
| startsExpr |
| }), |
| _get: createKeywordLike("get", { |
| startsExpr |
| }), |
| _let: createKeywordLike("let", { |
| startsExpr |
| }), |
| _meta: createKeywordLike("meta", { |
| startsExpr |
| }), |
| _of: createKeywordLike("of", { |
| startsExpr |
| }), |
| _sent: createKeywordLike("sent", { |
| startsExpr |
| }), |
| _set: createKeywordLike("set", { |
| startsExpr |
| }), |
| _static: createKeywordLike("static", { |
| startsExpr |
| }), |
| _yield: createKeywordLike("yield", { |
| startsExpr |
| }), |
| _asserts: createKeywordLike("asserts", { |
| startsExpr |
| }), |
| _checks: createKeywordLike("checks", { |
| startsExpr |
| }), |
| _exports: createKeywordLike("exports", { |
| startsExpr |
| }), |
| _global: createKeywordLike("global", { |
| startsExpr |
| }), |
| _implements: createKeywordLike("implements", { |
| startsExpr |
| }), |
| _intrinsic: createKeywordLike("intrinsic", { |
| startsExpr |
| }), |
| _infer: createKeywordLike("infer", { |
| startsExpr |
| }), |
| _is: createKeywordLike("is", { |
| startsExpr |
| }), |
| _mixins: createKeywordLike("mixins", { |
| startsExpr |
| }), |
| _proto: createKeywordLike("proto", { |
| startsExpr |
| }), |
| _require: createKeywordLike("require", { |
| startsExpr |
| }), |
| _keyof: createKeywordLike("keyof", { |
| startsExpr |
| }), |
| _readonly: createKeywordLike("readonly", { |
| startsExpr |
| }), |
| _unique: createKeywordLike("unique", { |
| startsExpr |
| }), |
| _abstract: createKeywordLike("abstract", { |
| startsExpr |
| }), |
| _declare: createKeywordLike("declare", { |
| startsExpr |
| }), |
| _enum: createKeywordLike("enum", { |
| startsExpr |
| }), |
| _module: createKeywordLike("module", { |
| startsExpr |
| }), |
| _namespace: createKeywordLike("namespace", { |
| startsExpr |
| }), |
| _interface: createKeywordLike("interface", { |
| startsExpr |
| }), |
| _type: createKeywordLike("type", { |
| startsExpr |
| }), |
| _opaque: createKeywordLike("opaque", { |
| startsExpr |
| }), |
| name: createToken("name", { |
| startsExpr |
| }), |
| string: createToken("string", { |
| startsExpr |
| }), |
| num: createToken("num", { |
| startsExpr |
| }), |
| bigint: createToken("bigint", { |
| startsExpr |
| }), |
| decimal: createToken("decimal", { |
| startsExpr |
| }), |
| regexp: createToken("regexp", { |
| startsExpr |
| }), |
| privateName: createToken("#name", { |
| startsExpr |
| }), |
| eof: createToken("eof"), |
| jsxName: createToken("jsxName"), |
| jsxText: createToken("jsxText", { |
| beforeExpr: true |
| }), |
| jsxTagStart: createToken("jsxTagStart", { |
| startsExpr: true |
| }), |
| jsxTagEnd: createToken("jsxTagEnd"), |
| placeholder: createToken("%%", { |
| startsExpr: true |
| }) |
| }; |
| function tokenIsIdentifier(token) { |
| return token >= 89 && token <= 124; |
| } |
| function tokenKeywordOrIdentifierIsKeyword(token) { |
| return token <= 88; |
| } |
| function tokenIsKeywordOrIdentifier(token) { |
| return token >= 54 && token <= 124; |
| } |
| function tokenIsLiteralPropertyName(token) { |
| return token >= 54 && token <= 128; |
| } |
| function tokenComesBeforeExpression(token) { |
| return tokenBeforeExprs[token]; |
| } |
| function tokenCanStartExpression(token) { |
| return tokenStartsExprs[token]; |
| } |
| function tokenIsAssignment(token) { |
| return token >= 29 && token <= 33; |
| } |
| function tokenIsFlowInterfaceOrTypeOrOpaque(token) { |
| return token >= 121 && token <= 123; |
| } |
| function tokenIsLoop(token) { |
| return token >= 86 && token <= 88; |
| } |
| function tokenIsKeyword(token) { |
| return token >= 54 && token <= 88; |
| } |
| function tokenIsOperator(token) { |
| return token >= 37 && token <= 55; |
| } |
| function tokenIsPostfix(token) { |
| return token === 34; |
| } |
| function tokenIsPrefix(token) { |
| return tokenPrefixes[token]; |
| } |
| function tokenIsTSTypeOperator(token) { |
| return token >= 113 && token <= 115; |
| } |
| function tokenIsTSDeclarationStart(token) { |
| return token >= 116 && token <= 122; |
| } |
| function tokenLabelName(token) { |
| return tokenLabels[token]; |
| } |
| function tokenOperatorPrecedence(token) { |
| return tokenBinops[token]; |
| } |
| function tokenIsRightAssociative(token) { |
| return token === 53; |
| } |
| function tokenIsTemplate(token) { |
| return token >= 24 && token <= 25; |
| } |
| function getExportedToken(token) { |
| return tokenTypes[token]; |
| } |
| function isTokenType(obj) { |
| return typeof obj === "number"; |
| } |
| { |
| tokenTypes[8].updateContext = context => { |
| context.pop(); |
| }; |
| |
| tokenTypes[5].updateContext = tokenTypes[7].updateContext = tokenTypes[23].updateContext = context => { |
| context.push(types.brace); |
| }; |
| |
| tokenTypes[22].updateContext = context => { |
| if (context[context.length - 1] === types.template) { |
| context.pop(); |
| } else { |
| context.push(types.template); |
| } |
| }; |
| |
| tokenTypes[134].updateContext = context => { |
| context.push(types.j_expr, types.j_oTag); |
| }; |
| } |
| |
| let nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0560-\u0588\u05d0-\u05ea\u05ef-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u0860-\u086a\u0870-\u0887\u0889-\u088e\u08a0-\u08c9\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u09fc\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c5d\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cdd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d04-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e86-\u0e8a\u0e8c-\u0ea3\u0ea5\u0ea7-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u1711\u171f-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1878\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4c\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1c90-\u1cba\u1cbd-\u1cbf\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5\u1cf6\u1cfa\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312f\u3131-\u318e\u31a0-\u31bf\u31f0-\u31ff\u3400-\u4dbf\u4e00-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7ca\ua7d0\ua7d1\ua7d3\ua7d5-\ua7d9\ua7f2-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua8fe\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab69\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc"; |
| let nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u07fd\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u0898-\u089f\u08ca-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u09fe\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0afa-\u0aff\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b55-\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c04\u0c3c\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d00-\u0d03\u0d3b\u0d3c\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d81-\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1715\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u180f-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1abf-\u1ace\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf4\u1cf7-\u1cf9\u1dc0-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua82c\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua8ff-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f"; |
| const nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]"); |
| const nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]"); |
| nonASCIIidentifierStartChars = nonASCIIidentifierChars = null; |
| const astralIdentifierStartCodes = [0, 11, 2, 25, 2, 18, 2, 1, 2, 14, 3, 13, 35, 122, 70, 52, 268, 28, 4, 48, 48, 31, 14, 29, 6, 37, 11, 29, 3, 35, 5, 7, 2, 4, 43, 157, 19, 35, 5, 35, 5, 39, 9, 51, 13, 10, 2, 14, 2, 6, 2, 1, 2, 10, 2, 14, 2, 6, 2, 1, 68, 310, 10, 21, 11, 7, 25, 5, 2, 41, 2, 8, 70, 5, 3, 0, 2, 43, 2, 1, 4, 0, 3, 22, 11, 22, 10, 30, 66, 18, 2, 1, 11, 21, 11, 25, 71, 55, 7, 1, 65, 0, 16, 3, 2, 2, 2, 28, 43, 28, 4, 28, 36, 7, 2, 27, 28, 53, 11, 21, 11, 18, 14, 17, 111, 72, 56, 50, 14, 50, 14, 35, 349, 41, 7, 1, 79, 28, 11, 0, 9, 21, 43, 17, 47, 20, 28, 22, 13, 52, 58, 1, 3, 0, 14, 44, 33, 24, 27, 35, 30, 0, 3, 0, 9, 34, 4, 0, 13, 47, 15, 3, 22, 0, 2, 0, 36, 17, 2, 24, 85, 6, 2, 0, 2, 3, 2, 14, 2, 9, 8, 46, 39, 7, 3, 1, 3, 21, 2, 6, 2, 1, 2, 4, 4, 0, 19, 0, 13, 4, 159, 52, 19, 3, 21, 2, 31, 47, 21, 1, 2, 0, 185, 46, 42, 3, 37, 47, 21, 0, 60, 42, 14, 0, 72, 26, 38, 6, 186, 43, 117, 63, 32, 7, 3, 0, 3, 7, 2, 1, 2, 23, 16, 0, 2, 0, 95, 7, 3, 38, 17, 0, 2, 0, 29, 0, 11, 39, 8, 0, 22, 0, 12, 45, 20, 0, 19, 72, 264, 8, 2, 36, 18, 0, 50, 29, 113, 6, 2, 1, 2, 37, 22, 0, 26, 5, 2, 1, 2, 31, 15, 0, 328, 18, 190, 0, 80, 921, 103, 110, 18, 195, 2637, 96, 16, 1070, 4050, 582, 8634, 568, 8, 30, 18, 78, 18, 29, 19, 47, 17, 3, 32, 20, 6, 18, 689, 63, 129, 74, 6, 0, 67, 12, 65, 1, 2, 0, 29, 6135, 9, 1237, 43, 8, 8936, 3, 2, 6, 2, 1, 2, 290, 46, 2, 18, 3, 9, 395, 2309, 106, 6, 12, 4, 8, 8, 9, 5991, 84, 2, 70, 2, 1, 3, 0, 3, 1, 3, 3, 2, 11, 2, 0, 2, 6, 2, 64, 2, 3, 3, 7, 2, 6, 2, 27, 2, 3, 2, 4, 2, 0, 4, 6, 2, 339, 3, 24, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 7, 1845, 30, 482, 44, 11, 6, 17, 0, 322, 29, 19, 43, 1269, 6, 2, 3, 2, 1, 2, 14, 2, 196, 60, 67, 8, 0, 1205, 3, 2, 26, 2, 1, 2, 0, 3, 0, 2, 9, 2, 3, 2, 0, 2, 0, 7, 0, 5, 0, 2, 0, 2, 0, 2, 2, 2, 1, 2, 0, 3, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 3, 3, 2, 6, 2, 3, 2, 3, 2, 0, 2, 9, 2, 16, 6, 2, 2, 4, 2, 16, 4421, 42719, 33, 4152, 8, 221, 3, 5761, 15, 7472, 3104, 541, 1507, 4938]; |
| const astralIdentifierCodes = [509, 0, 227, 0, 150, 4, 294, 9, 1368, 2, 2, 1, 6, 3, 41, 2, 5, 0, 166, 1, 574, 3, 9, 9, 370, 1, 154, 10, 50, 3, 123, 2, 54, 14, 32, 10, 3, 1, 11, 3, 46, 10, 8, 0, 46, 9, 7, 2, 37, 13, 2, 9, 6, 1, 45, 0, 13, 2, 49, 13, 9, 3, 2, 11, 83, 11, 7, 0, 161, 11, 6, 9, 7, 3, 56, 1, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 193, 17, 10, 9, 5, 0, 82, 19, 13, 9, 214, 6, 3, 8, 28, 1, 83, 16, 16, 9, 82, 12, 9, 9, 84, 14, 5, 9, 243, 14, 166, 9, 71, 5, 2, 1, 3, 3, 2, 0, 2, 1, 13, 9, 120, 6, 3, 6, 4, 0, 29, 9, 41, 6, 2, 3, 9, 0, 10, 10, 47, 15, 406, 7, 2, 7, 17, 9, 57, 21, 2, 13, 123, 5, 4, 0, 2, 1, 2, 6, 2, 0, 9, 9, 49, 4, 2, 1, 2, 4, 9, 9, 330, 3, 19306, 9, 87, 9, 39, 4, 60, 6, 26, 9, 1014, 0, 2, 54, 8, 3, 82, 0, 12, 1, 19628, 1, 4706, 45, 3, 22, 543, 4, 4, 5, 9, 7, 3, 6, 31, 3, 149, 2, 1418, 49, 513, 54, 5, 49, 9, 0, 15, 0, 23, 4, 2, 14, 1361, 6, 2, 16, 3, 6, 2, 1, 2, 4, 262, 6, 10, 9, 357, 0, 62, 13, 1495, 6, 110, 6, 6, 9, 4759, 9, 787719, 239]; |
| |
| function isInAstralSet(code, set) { |
| let pos = 0x10000; |
| |
| for (let i = 0, length = set.length; i < length; i += 2) { |
| pos += set[i]; |
| if (pos > code) return false; |
| pos += set[i + 1]; |
| if (pos >= code) return true; |
| } |
| |
| return false; |
| } |
| |
| function isIdentifierStart(code) { |
| if (code < 65) return code === 36; |
| if (code <= 90) return true; |
| if (code < 97) return code === 95; |
| if (code <= 122) return true; |
| |
| if (code <= 0xffff) { |
| return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)); |
| } |
| |
| return isInAstralSet(code, astralIdentifierStartCodes); |
| } |
| function isIdentifierChar(code) { |
| if (code < 48) return code === 36; |
| if (code < 58) return true; |
| if (code < 65) return false; |
| if (code <= 90) return true; |
| if (code < 97) return code === 95; |
| if (code <= 122) return true; |
| |
| if (code <= 0xffff) { |
| return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)); |
| } |
| |
| return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes); |
| } |
| |
| const reservedWords = { |
| keyword: ["break", "case", "catch", "continue", "debugger", "default", "do", "else", "finally", "for", "function", "if", "return", "switch", "throw", "try", "var", "const", "while", "with", "new", "this", "super", "class", "extends", "export", "import", "null", "true", "false", "in", "instanceof", "typeof", "void", "delete"], |
| strict: ["implements", "interface", "let", "package", "private", "protected", "public", "static", "yield"], |
| strictBind: ["eval", "arguments"] |
| }; |
| const keywords = new Set(reservedWords.keyword); |
| const reservedWordsStrictSet = new Set(reservedWords.strict); |
| const reservedWordsStrictBindSet = new Set(reservedWords.strictBind); |
| function isReservedWord(word, inModule) { |
| return inModule && word === "await" || word === "enum"; |
| } |
| function isStrictReservedWord(word, inModule) { |
| return isReservedWord(word, inModule) || reservedWordsStrictSet.has(word); |
| } |
| function isStrictBindOnlyReservedWord(word) { |
| return reservedWordsStrictBindSet.has(word); |
| } |
| function isStrictBindReservedWord(word, inModule) { |
| return isStrictReservedWord(word, inModule) || isStrictBindOnlyReservedWord(word); |
| } |
| function isKeyword(word) { |
| return keywords.has(word); |
| } |
| |
| function isIteratorStart(current, next) { |
| return current === 64 && next === 64; |
| } |
| const reservedWordLikeSet = new Set(["break", "case", "catch", "continue", "debugger", "default", "do", "else", "finally", "for", "function", "if", "return", "switch", "throw", "try", "var", "const", "while", "with", "new", "this", "super", "class", "extends", "export", "import", "null", "true", "false", "in", "instanceof", "typeof", "void", "delete", "implements", "interface", "let", "package", "private", "protected", "public", "static", "yield", "eval", "arguments", "enum", "await"]); |
| function canBeReservedWord(word) { |
| return reservedWordLikeSet.has(word); |
| } |
| |
| const SCOPE_OTHER = 0b000000000, |
| SCOPE_PROGRAM = 0b000000001, |
| SCOPE_FUNCTION = 0b000000010, |
| SCOPE_ARROW = 0b000000100, |
| SCOPE_SIMPLE_CATCH = 0b000001000, |
| SCOPE_SUPER = 0b000010000, |
| SCOPE_DIRECT_SUPER = 0b000100000, |
| SCOPE_CLASS = 0b001000000, |
| SCOPE_STATIC_BLOCK = 0b010000000, |
| SCOPE_TS_MODULE = 0b100000000, |
| SCOPE_VAR = SCOPE_PROGRAM | SCOPE_FUNCTION | SCOPE_TS_MODULE; |
| const BIND_KIND_VALUE = 0b000000000001, |
| BIND_KIND_TYPE = 0b000000000010, |
| BIND_SCOPE_VAR = 0b000000000100, |
| BIND_SCOPE_LEXICAL = 0b000000001000, |
| BIND_SCOPE_FUNCTION = 0b000000010000, |
| BIND_FLAGS_NONE = 0b000001000000, |
| BIND_FLAGS_CLASS = 0b000010000000, |
| BIND_FLAGS_TS_ENUM = 0b000100000000, |
| BIND_FLAGS_TS_CONST_ENUM = 0b001000000000, |
| BIND_FLAGS_TS_EXPORT_ONLY = 0b010000000000, |
| BIND_FLAGS_FLOW_DECLARE_FN = 0b100000000000; |
| const BIND_CLASS = BIND_KIND_VALUE | BIND_KIND_TYPE | BIND_SCOPE_LEXICAL | BIND_FLAGS_CLASS, |
| BIND_LEXICAL = BIND_KIND_VALUE | 0 | BIND_SCOPE_LEXICAL | 0, |
| BIND_VAR = BIND_KIND_VALUE | 0 | BIND_SCOPE_VAR | 0, |
| BIND_FUNCTION = BIND_KIND_VALUE | 0 | BIND_SCOPE_FUNCTION | 0, |
| BIND_TS_INTERFACE = 0 | BIND_KIND_TYPE | 0 | BIND_FLAGS_CLASS, |
| BIND_TS_TYPE = 0 | BIND_KIND_TYPE | 0 | 0, |
| BIND_TS_ENUM = BIND_KIND_VALUE | BIND_KIND_TYPE | BIND_SCOPE_LEXICAL | BIND_FLAGS_TS_ENUM, |
| BIND_TS_AMBIENT = 0 | 0 | 0 | BIND_FLAGS_TS_EXPORT_ONLY, |
| BIND_NONE = 0 | 0 | 0 | BIND_FLAGS_NONE, |
| BIND_OUTSIDE = BIND_KIND_VALUE | 0 | 0 | BIND_FLAGS_NONE, |
| BIND_TS_CONST_ENUM = BIND_TS_ENUM | BIND_FLAGS_TS_CONST_ENUM, |
| BIND_TS_NAMESPACE = 0 | 0 | 0 | BIND_FLAGS_TS_EXPORT_ONLY, |
| BIND_FLOW_DECLARE_FN = BIND_FLAGS_FLOW_DECLARE_FN; |
| const CLASS_ELEMENT_FLAG_STATIC = 0b100, |
| CLASS_ELEMENT_KIND_GETTER = 0b010, |
| CLASS_ELEMENT_KIND_SETTER = 0b001, |
| CLASS_ELEMENT_KIND_ACCESSOR = CLASS_ELEMENT_KIND_GETTER | CLASS_ELEMENT_KIND_SETTER; |
| const CLASS_ELEMENT_STATIC_GETTER = CLASS_ELEMENT_KIND_GETTER | CLASS_ELEMENT_FLAG_STATIC, |
| CLASS_ELEMENT_STATIC_SETTER = CLASS_ELEMENT_KIND_SETTER | CLASS_ELEMENT_FLAG_STATIC, |
| CLASS_ELEMENT_INSTANCE_GETTER = CLASS_ELEMENT_KIND_GETTER, |
| CLASS_ELEMENT_INSTANCE_SETTER = CLASS_ELEMENT_KIND_SETTER, |
| CLASS_ELEMENT_OTHER = 0; |
| |
| class Scope { |
| constructor(flags) { |
| this.var = new Set(); |
| this.lexical = new Set(); |
| this.functions = new Set(); |
| this.flags = flags; |
| } |
| |
| } |
| class ScopeHandler { |
| constructor(raise, inModule) { |
| this.scopeStack = []; |
| this.undefinedExports = new Map(); |
| this.undefinedPrivateNames = new Map(); |
| this.raise = raise; |
| this.inModule = inModule; |
| } |
| |
| get inFunction() { |
| return (this.currentVarScopeFlags() & SCOPE_FUNCTION) > 0; |
| } |
| |
| get allowSuper() { |
| return (this.currentThisScopeFlags() & SCOPE_SUPER) > 0; |
| } |
| |
| get allowDirectSuper() { |
| return (this.currentThisScopeFlags() & SCOPE_DIRECT_SUPER) > 0; |
| } |
| |
| get inClass() { |
| return (this.currentThisScopeFlags() & SCOPE_CLASS) > 0; |
| } |
| |
| get inClassAndNotInNonArrowFunction() { |
| const flags = this.currentThisScopeFlags(); |
| return (flags & SCOPE_CLASS) > 0 && (flags & SCOPE_FUNCTION) === 0; |
| } |
| |
| get inStaticBlock() { |
| for (let i = this.scopeStack.length - 1;; i--) { |
| const { |
| flags |
| } = this.scopeStack[i]; |
| |
| if (flags & SCOPE_STATIC_BLOCK) { |
| return true; |
| } |
| |
| if (flags & (SCOPE_VAR | SCOPE_CLASS)) { |
| return false; |
| } |
| } |
| } |
| |
| get inNonArrowFunction() { |
| return (this.currentThisScopeFlags() & SCOPE_FUNCTION) > 0; |
| } |
| |
| get treatFunctionsAsVar() { |
| return this.treatFunctionsAsVarInScope(this.currentScope()); |
| } |
| |
| createScope(flags) { |
| return new Scope(flags); |
| } |
| |
| enter(flags) { |
| this.scopeStack.push(this.createScope(flags)); |
| } |
| |
| exit() { |
| this.scopeStack.pop(); |
| } |
| |
| treatFunctionsAsVarInScope(scope) { |
| return !!(scope.flags & SCOPE_FUNCTION || !this.inModule && scope.flags & SCOPE_PROGRAM); |
| } |
| |
| declareName(name, bindingType, pos) { |
| let scope = this.currentScope(); |
| |
| if (bindingType & BIND_SCOPE_LEXICAL || bindingType & BIND_SCOPE_FUNCTION) { |
| this.checkRedeclarationInScope(scope, name, bindingType, pos); |
| |
| if (bindingType & BIND_SCOPE_FUNCTION) { |
| scope.functions.add(name); |
| } else { |
| scope.lexical.add(name); |
| } |
| |
| if (bindingType & BIND_SCOPE_LEXICAL) { |
| this.maybeExportDefined(scope, name); |
| } |
| } else if (bindingType & BIND_SCOPE_VAR) { |
| for (let i = this.scopeStack.length - 1; i >= 0; --i) { |
| scope = this.scopeStack[i]; |
| this.checkRedeclarationInScope(scope, name, bindingType, pos); |
| scope.var.add(name); |
| this.maybeExportDefined(scope, name); |
| if (scope.flags & SCOPE_VAR) break; |
| } |
| } |
| |
| if (this.inModule && scope.flags & SCOPE_PROGRAM) { |
| this.undefinedExports.delete(name); |
| } |
| } |
| |
| maybeExportDefined(scope, name) { |
| if (this.inModule && scope.flags & SCOPE_PROGRAM) { |
| this.undefinedExports.delete(name); |
| } |
| } |
| |
| checkRedeclarationInScope(scope, name, bindingType, pos) { |
| if (this.isRedeclaredInScope(scope, name, bindingType)) { |
| this.raise(pos, ErrorMessages.VarRedeclaration, name); |
| } |
| } |
| |
| isRedeclaredInScope(scope, name, bindingType) { |
| if (!(bindingType & BIND_KIND_VALUE)) return false; |
| |
| if (bindingType & BIND_SCOPE_LEXICAL) { |
| return scope.lexical.has(name) || scope.functions.has(name) || scope.var.has(name); |
| } |
| |
| if (bindingType & BIND_SCOPE_FUNCTION) { |
| return scope.lexical.has(name) || !this.treatFunctionsAsVarInScope(scope) && scope.var.has(name); |
| } |
| |
| return scope.lexical.has(name) && !(scope.flags & SCOPE_SIMPLE_CATCH && scope.lexical.values().next().value === name) || !this.treatFunctionsAsVarInScope(scope) && scope.functions.has(name); |
| } |
| |
| checkLocalExport(id) { |
| const { |
| name |
| } = id; |
| const topLevelScope = this.scopeStack[0]; |
| |
| if (!topLevelScope.lexical.has(name) && !topLevelScope.var.has(name) && !topLevelScope.functions.has(name)) { |
| this.undefinedExports.set(name, id.start); |
| } |
| } |
| |
| currentScope() { |
| return this.scopeStack[this.scopeStack.length - 1]; |
| } |
| |
| currentVarScopeFlags() { |
| for (let i = this.scopeStack.length - 1;; i--) { |
| const { |
| flags |
| } = this.scopeStack[i]; |
| |
| if (flags & SCOPE_VAR) { |
| return flags; |
| } |
| } |
| } |
| |
| currentThisScopeFlags() { |
| for (let i = this.scopeStack.length - 1;; i--) { |
| const { |
| flags |
| } = this.scopeStack[i]; |
| |
| if (flags & (SCOPE_VAR | SCOPE_CLASS) && !(flags & SCOPE_ARROW)) { |
| return flags; |
| } |
| } |
| } |
| |
| } |
| |
| class FlowScope extends Scope { |
| constructor(...args) { |
| super(...args); |
| this.declareFunctions = new Set(); |
| } |
| |
| } |
| |
| class FlowScopeHandler extends ScopeHandler { |
| createScope(flags) { |
| return new FlowScope(flags); |
| } |
| |
| declareName(name, bindingType, pos) { |
| const scope = this.currentScope(); |
| |
| if (bindingType & BIND_FLAGS_FLOW_DECLARE_FN) { |
| this.checkRedeclarationInScope(scope, name, bindingType, pos); |
| this.maybeExportDefined(scope, name); |
| scope.declareFunctions.add(name); |
| return; |
| } |
| |
| super.declareName(...arguments); |
| } |
| |
| isRedeclaredInScope(scope, name, bindingType) { |
| if (super.isRedeclaredInScope(...arguments)) return true; |
| |
| if (bindingType & BIND_FLAGS_FLOW_DECLARE_FN) { |
| return !scope.declareFunctions.has(name) && (scope.lexical.has(name) || scope.functions.has(name)); |
| } |
| |
| return false; |
| } |
| |
| checkLocalExport(id) { |
| if (!this.scopeStack[0].declareFunctions.has(id.name)) { |
| super.checkLocalExport(id); |
| } |
| } |
| |
| } |
| |
| class State { |
| constructor() { |
| this.strict = void 0; |
| this.curLine = void 0; |
| this.lineStart = void 0; |
| this.startLoc = void 0; |
| this.endLoc = void 0; |
| this.errors = []; |
| this.potentialArrowAt = -1; |
| this.noArrowAt = []; |
| this.noArrowParamsConversionAt = []; |
| this.maybeInArrowParameters = false; |
| this.inType = false; |
| this.noAnonFunctionType = false; |
| this.hasFlowComment = false; |
| this.isAmbientContext = false; |
| this.inAbstractClass = false; |
| this.topicContext = { |
| maxNumOfResolvableTopics: 0, |
| maxTopicIndex: null |
| }; |
| this.soloAwait = false; |
| this.inFSharpPipelineDirectBody = false; |
| this.labels = []; |
| this.decoratorStack = [[]]; |
| this.comments = []; |
| this.commentStack = []; |
| this.pos = 0; |
| this.type = 131; |
| this.value = null; |
| this.start = 0; |
| this.end = 0; |
| this.lastTokEndLoc = null; |
| this.lastTokStartLoc = null; |
| this.lastTokStart = 0; |
| this.lastTokEnd = 0; |
| this.context = [types.brace]; |
| this.canStartJSXElement = true; |
| this.containsEsc = false; |
| this.strictErrors = new Map(); |
| this.tokensLength = 0; |
| } |
| |
| init({ |
| strictMode, |
| sourceType, |
| startLine, |
| startColumn |
| }) { |
| this.strict = strictMode === false ? false : strictMode === true ? true : sourceType === "module"; |
| this.curLine = startLine; |
| this.lineStart = -startColumn; |
| this.startLoc = this.endLoc = new Position(startLine, startColumn); |
| } |
| |
| curPosition() { |
| return new Position(this.curLine, this.pos - this.lineStart); |
| } |
| |
| clone(skipArrays) { |
| const state = new State(); |
| const keys = Object.keys(this); |
| |
| for (let i = 0, length = keys.length; i < length; i++) { |
| const key = keys[i]; |
| let val = this[key]; |
| |
| if (!skipArrays && Array.isArray(val)) { |
| val = val.slice(); |
| } |
| |
| state[key] = val; |
| } |
| |
| return state; |
| } |
| |
| } |
| |
| var _isDigit = function isDigit(code) { |
| return code >= 48 && code <= 57; |
| }; |
| const VALID_REGEX_FLAGS = new Set([103, 109, 115, 105, 121, 117, 100]); |
| const forbiddenNumericSeparatorSiblings = { |
| decBinOct: [46, 66, 69, 79, 95, 98, 101, 111], |
| hex: [46, 88, 95, 120] |
| }; |
| const allowedNumericSeparatorSiblings = {}; |
| allowedNumericSeparatorSiblings.bin = [48, 49]; |
| allowedNumericSeparatorSiblings.oct = [...allowedNumericSeparatorSiblings.bin, 50, 51, 52, 53, 54, 55]; |
| allowedNumericSeparatorSiblings.dec = [...allowedNumericSeparatorSiblings.oct, 56, 57]; |
| allowedNumericSeparatorSiblings.hex = [...allowedNumericSeparatorSiblings.dec, 65, 66, 67, 68, 69, 70, 97, 98, 99, 100, 101, 102]; |
| class Token { |
| constructor(state) { |
| this.type = state.type; |
| this.value = state.value; |
| this.start = state.start; |
| this.end = state.end; |
| this.loc = new SourceLocation(state.startLoc, state.endLoc); |
| } |
| |
| } |
| class Tokenizer extends ParserError { |
| constructor(options, input) { |
| super(); |
| this.isLookahead = void 0; |
| this.tokens = []; |
| this.state = new State(); |
| this.state.init(options); |
| this.input = input; |
| this.length = input.length; |
| this.isLookahead = false; |
| } |
| |
| pushToken(token) { |
| this.tokens.length = this.state.tokensLength; |
| this.tokens.push(token); |
| ++this.state.tokensLength; |
| } |
| |
| next() { |
| this.checkKeywordEscapes(); |
| |
| if (this.options.tokens) { |
| this.pushToken(new Token(this.state)); |
| } |
| |
| this.state.lastTokEnd = this.state.end; |
| this.state.lastTokStart = this.state.start; |
| this.state.lastTokEndLoc = this.state.endLoc; |
| this.state.lastTokStartLoc = this.state.startLoc; |
| this.nextToken(); |
| } |
| |
| eat(type) { |
| if (this.match(type)) { |
| this.next(); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| match(type) { |
| return this.state.type === type; |
| } |
| |
| createLookaheadState(state) { |
| return { |
| pos: state.pos, |
| value: null, |
| type: state.type, |
| start: state.start, |
| end: state.end, |
| lastTokEnd: state.end, |
| context: [this.curContext()], |
| inType: state.inType |
| }; |
| } |
| |
| lookahead() { |
| const old = this.state; |
| this.state = this.createLookaheadState(old); |
| this.isLookahead = true; |
| this.nextToken(); |
| this.isLookahead = false; |
| const curr = this.state; |
| this.state = old; |
| return curr; |
| } |
| |
| nextTokenStart() { |
| return this.nextTokenStartSince(this.state.pos); |
| } |
| |
| nextTokenStartSince(pos) { |
| skipWhiteSpace.lastIndex = pos; |
| return skipWhiteSpace.test(this.input) ? skipWhiteSpace.lastIndex : pos; |
| } |
| |
| lookaheadCharCode() { |
| return this.input.charCodeAt(this.nextTokenStart()); |
| } |
| |
| codePointAtPos(pos) { |
| let cp = this.input.charCodeAt(pos); |
| |
| if ((cp & 0xfc00) === 0xd800 && ++pos < this.input.length) { |
| const trail = this.input.charCodeAt(pos); |
| |
| if ((trail & 0xfc00) === 0xdc00) { |
| cp = 0x10000 + ((cp & 0x3ff) << 10) + (trail & 0x3ff); |
| } |
| } |
| |
| return cp; |
| } |
| |
| setStrict(strict) { |
| this.state.strict = strict; |
| |
| if (strict) { |
| this.state.strictErrors.forEach((message, pos) => this.raise(pos, message)); |
| this.state.strictErrors.clear(); |
| } |
| } |
| |
| curContext() { |
| return this.state.context[this.state.context.length - 1]; |
| } |
| |
| nextToken() { |
| this.skipSpace(); |
| this.state.start = this.state.pos; |
| if (!this.isLookahead) this.state.startLoc = this.state.curPosition(); |
| |
| if (this.state.pos >= this.length) { |
| this.finishToken(131); |
| return; |
| } |
| |
| this.getTokenFromCode(this.codePointAtPos(this.state.pos)); |
| } |
| |
| skipBlockComment() { |
| let startLoc; |
| if (!this.isLookahead) startLoc = this.state.curPosition(); |
| const start = this.state.pos; |
| const end = this.input.indexOf("*/", start + 2); |
| if (end === -1) throw this.raise(start, ErrorMessages.UnterminatedComment); |
| this.state.pos = end + 2; |
| lineBreakG.lastIndex = start + 2; |
| |
| while (lineBreakG.test(this.input) && lineBreakG.lastIndex <= end) { |
| ++this.state.curLine; |
| this.state.lineStart = lineBreakG.lastIndex; |
| } |
| |
| if (this.isLookahead) return; |
| const comment = { |
| type: "CommentBlock", |
| value: this.input.slice(start + 2, end), |
| start, |
| end: end + 2, |
| loc: new SourceLocation(startLoc, this.state.curPosition()) |
| }; |
| if (this.options.tokens) this.pushToken(comment); |
| return comment; |
| } |
| |
| skipLineComment(startSkip) { |
| const start = this.state.pos; |
| let startLoc; |
| if (!this.isLookahead) startLoc = this.state.curPosition(); |
| let ch = this.input.charCodeAt(this.state.pos += startSkip); |
| |
| if (this.state.pos < this.length) { |
| while (!isNewLine(ch) && ++this.state.pos < this.length) { |
| ch = this.input.charCodeAt(this.state.pos); |
| } |
| } |
| |
| if (this.isLookahead) return; |
| const end = this.state.pos; |
| const value = this.input.slice(start + startSkip, end); |
| const comment = { |
| type: "CommentLine", |
| value, |
| start, |
| end, |
| loc: new SourceLocation(startLoc, this.state.curPosition()) |
| }; |
| if (this.options.tokens) this.pushToken(comment); |
| return comment; |
| } |
| |
| skipSpace() { |
| const spaceStart = this.state.pos; |
| const comments = []; |
| |
| loop: while (this.state.pos < this.length) { |
| const ch = this.input.charCodeAt(this.state.pos); |
| |
| switch (ch) { |
| case 32: |
| case 160: |
| case 9: |
| ++this.state.pos; |
| break; |
| |
| case 13: |
| if (this.input.charCodeAt(this.state.pos + 1) === 10) { |
| ++this.state.pos; |
| } |
| |
| case 10: |
| case 8232: |
| case 8233: |
| ++this.state.pos; |
| ++this.state.curLine; |
| this.state.lineStart = this.state.pos; |
| break; |
| |
| case 47: |
| switch (this.input.charCodeAt(this.state.pos + 1)) { |
| case 42: |
| { |
| const comment = this.skipBlockComment(); |
| |
| if (comment !== undefined) { |
| this.addComment(comment); |
| if (this.options.attachComment) comments.push(comment); |
| } |
| |
| break; |
| } |
| |
| case 47: |
| { |
| const comment = this.skipLineComment(2); |
| |
| if (comment !== undefined) { |
| this.addComment(comment); |
| if (this.options.attachComment) comments.push(comment); |
| } |
| |
| break; |
| } |
| |
| default: |
| break loop; |
| } |
| |
| break; |
| |
| default: |
| if (isWhitespace(ch)) { |
| ++this.state.pos; |
| } else if (ch === 45 && !this.inModule) { |
| const pos = this.state.pos; |
| |
| if (this.input.charCodeAt(pos + 1) === 45 && this.input.charCodeAt(pos + 2) === 62 && (spaceStart === 0 || this.state.lineStart > spaceStart)) { |
| const comment = this.skipLineComment(3); |
| |
| if (comment !== undefined) { |
| this.addComment(comment); |
| if (this.options.attachComment) comments.push(comment); |
| } |
| } else { |
| break loop; |
| } |
| } else if (ch === 60 && !this.inModule) { |
| const pos = this.state.pos; |
| |
| if (this.input.charCodeAt(pos + 1) === 33 && this.input.charCodeAt(pos + 2) === 45 && this.input.charCodeAt(pos + 3) === 45) { |
| const comment = this.skipLineComment(4); |
| |
| if (comment !== undefined) { |
| this.addComment(comment); |
| if (this.options.attachComment) comments.push(comment); |
| } |
| } else { |
| break loop; |
| } |
| } else { |
| break loop; |
| } |
| |
| } |
| } |
| |
| if (comments.length > 0) { |
| const end = this.state.pos; |
| const CommentWhitespace = { |
| start: spaceStart, |
| end, |
| comments, |
| leadingNode: null, |
| trailingNode: null, |
| containingNode: null |
| }; |
| this.state.commentStack.push(CommentWhitespace); |
| } |
| } |
| |
| finishToken(type, val) { |
| this.state.end = this.state.pos; |
| const prevType = this.state.type; |
| this.state.type = type; |
| this.state.value = val; |
| |
| if (!this.isLookahead) { |
| this.state.endLoc = this.state.curPosition(); |
| this.updateContext(prevType); |
| } |
| } |
| |
| replaceToken(type) { |
| this.state.type = type; |
| this.updateContext(); |
| } |
| |
| readToken_numberSign() { |
| if (this.state.pos === 0 && this.readToken_interpreter()) { |
| return; |
| } |
| |
| const nextPos = this.state.pos + 1; |
| const next = this.codePointAtPos(nextPos); |
| |
| if (next >= 48 && next <= 57) { |
| throw this.raise(this.state.pos, ErrorMessages.UnexpectedDigitAfterHash); |
| } |
| |
| if (next === 123 || next === 91 && this.hasPlugin("recordAndTuple")) { |
| this.expectPlugin("recordAndTuple"); |
| |
| if (this.getPluginOption("recordAndTuple", "syntaxType") !== "hash") { |
| throw this.raise(this.state.pos, next === 123 ? ErrorMessages.RecordExpressionHashIncorrectStartSyntaxType : ErrorMessages.TupleExpressionHashIncorrectStartSyntaxType); |
| } |
| |
| this.state.pos += 2; |
| |
| if (next === 123) { |
| this.finishToken(7); |
| } else { |
| this.finishToken(1); |
| } |
| } else if (isIdentifierStart(next)) { |
| ++this.state.pos; |
| this.finishToken(130, this.readWord1(next)); |
| } else if (next === 92) { |
| ++this.state.pos; |
| this.finishToken(130, this.readWord1()); |
| } else { |
| this.finishOp(27, 1); |
| } |
| } |
| |
| readToken_dot() { |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (next >= 48 && next <= 57) { |
| this.readNumber(true); |
| return; |
| } |
| |
| if (next === 46 && this.input.charCodeAt(this.state.pos + 2) === 46) { |
| this.state.pos += 3; |
| this.finishToken(21); |
| } else { |
| ++this.state.pos; |
| this.finishToken(16); |
| } |
| } |
| |
| readToken_slash() { |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (next === 61) { |
| this.finishOp(31, 2); |
| } else { |
| this.finishOp(52, 1); |
| } |
| } |
| |
| readToken_interpreter() { |
| if (this.state.pos !== 0 || this.length < 2) return false; |
| let ch = this.input.charCodeAt(this.state.pos + 1); |
| if (ch !== 33) return false; |
| const start = this.state.pos; |
| this.state.pos += 1; |
| |
| while (!isNewLine(ch) && ++this.state.pos < this.length) { |
| ch = this.input.charCodeAt(this.state.pos); |
| } |
| |
| const value = this.input.slice(start + 2, this.state.pos); |
| this.finishToken(28, value); |
| return true; |
| } |
| |
| readToken_mult_modulo(code) { |
| let type = code === 42 ? 51 : 50; |
| let width = 1; |
| let next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (code === 42 && next === 42) { |
| width++; |
| next = this.input.charCodeAt(this.state.pos + 2); |
| type = 53; |
| } |
| |
| if (next === 61 && !this.state.inType) { |
| width++; |
| type = code === 37 ? 33 : 30; |
| } |
| |
| this.finishOp(type, width); |
| } |
| |
| readToken_pipe_amp(code) { |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (next === code) { |
| if (this.input.charCodeAt(this.state.pos + 2) === 61) { |
| this.finishOp(30, 3); |
| } else { |
| this.finishOp(code === 124 ? 39 : 40, 2); |
| } |
| |
| return; |
| } |
| |
| if (code === 124) { |
| if (next === 62) { |
| this.finishOp(37, 2); |
| return; |
| } |
| |
| if (this.hasPlugin("recordAndTuple") && next === 125) { |
| if (this.getPluginOption("recordAndTuple", "syntaxType") !== "bar") { |
| throw this.raise(this.state.pos, ErrorMessages.RecordExpressionBarIncorrectEndSyntaxType); |
| } |
| |
| this.state.pos += 2; |
| this.finishToken(9); |
| return; |
| } |
| |
| if (this.hasPlugin("recordAndTuple") && next === 93) { |
| if (this.getPluginOption("recordAndTuple", "syntaxType") !== "bar") { |
| throw this.raise(this.state.pos, ErrorMessages.TupleExpressionBarIncorrectEndSyntaxType); |
| } |
| |
| this.state.pos += 2; |
| this.finishToken(4); |
| return; |
| } |
| } |
| |
| if (next === 61) { |
| this.finishOp(30, 2); |
| return; |
| } |
| |
| this.finishOp(code === 124 ? 41 : 43, 1); |
| } |
| |
| readToken_caret() { |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (next === 61 && !this.state.inType) { |
| this.finishOp(32, 2); |
| } else { |
| this.finishOp(42, 1); |
| } |
| } |
| |
| readToken_plus_min(code) { |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (next === code) { |
| this.finishOp(34, 2); |
| return; |
| } |
| |
| if (next === 61) { |
| this.finishOp(30, 2); |
| } else { |
| this.finishOp(49, 1); |
| } |
| } |
| |
| readToken_lt() { |
| const { |
| pos |
| } = this.state; |
| const next = this.input.charCodeAt(pos + 1); |
| |
| if (next === 60) { |
| if (this.input.charCodeAt(pos + 2) === 61) { |
| this.finishOp(30, 3); |
| return; |
| } |
| |
| this.finishOp(48, 2); |
| return; |
| } |
| |
| if (next === 61) { |
| this.finishOp(47, 2); |
| return; |
| } |
| |
| this.finishOp(45, 1); |
| } |
| |
| readToken_gt() { |
| const { |
| pos |
| } = this.state; |
| const next = this.input.charCodeAt(pos + 1); |
| |
| if (next === 62) { |
| const size = this.input.charCodeAt(pos + 2) === 62 ? 3 : 2; |
| |
| if (this.input.charCodeAt(pos + size) === 61) { |
| this.finishOp(30, size + 1); |
| return; |
| } |
| |
| this.finishOp(48, size); |
| return; |
| } |
| |
| if (next === 61) { |
| this.finishOp(47, 2); |
| return; |
| } |
| |
| this.finishOp(46, 1); |
| } |
| |
| readToken_eq_excl(code) { |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (next === 61) { |
| this.finishOp(44, this.input.charCodeAt(this.state.pos + 2) === 61 ? 3 : 2); |
| return; |
| } |
| |
| if (code === 61 && next === 62) { |
| this.state.pos += 2; |
| this.finishToken(19); |
| return; |
| } |
| |
| this.finishOp(code === 61 ? 29 : 35, 1); |
| } |
| |
| readToken_question() { |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| const next2 = this.input.charCodeAt(this.state.pos + 2); |
| |
| if (next === 63) { |
| if (next2 === 61) { |
| this.finishOp(30, 3); |
| } else { |
| this.finishOp(38, 2); |
| } |
| } else if (next === 46 && !(next2 >= 48 && next2 <= 57)) { |
| this.state.pos += 2; |
| this.finishToken(18); |
| } else { |
| ++this.state.pos; |
| this.finishToken(17); |
| } |
| } |
| |
| getTokenFromCode(code) { |
| switch (code) { |
| case 46: |
| this.readToken_dot(); |
| return; |
| |
| case 40: |
| ++this.state.pos; |
| this.finishToken(10); |
| return; |
| |
| case 41: |
| ++this.state.pos; |
| this.finishToken(11); |
| return; |
| |
| case 59: |
| ++this.state.pos; |
| this.finishToken(13); |
| return; |
| |
| case 44: |
| ++this.state.pos; |
| this.finishToken(12); |
| return; |
| |
| case 91: |
| if (this.hasPlugin("recordAndTuple") && this.input.charCodeAt(this.state.pos + 1) === 124) { |
| if (this.getPluginOption("recordAndTuple", "syntaxType") !== "bar") { |
| throw this.raise(this.state.pos, ErrorMessages.TupleExpressionBarIncorrectStartSyntaxType); |
| } |
| |
| this.state.pos += 2; |
| this.finishToken(2); |
| } else { |
| ++this.state.pos; |
| this.finishToken(0); |
| } |
| |
| return; |
| |
| case 93: |
| ++this.state.pos; |
| this.finishToken(3); |
| return; |
| |
| case 123: |
| if (this.hasPlugin("recordAndTuple") && this.input.charCodeAt(this.state.pos + 1) === 124) { |
| if (this.getPluginOption("recordAndTuple", "syntaxType") !== "bar") { |
| throw this.raise(this.state.pos, ErrorMessages.RecordExpressionBarIncorrectStartSyntaxType); |
| } |
| |
| this.state.pos += 2; |
| this.finishToken(6); |
| } else { |
| ++this.state.pos; |
| this.finishToken(5); |
| } |
| |
| return; |
| |
| case 125: |
| ++this.state.pos; |
| this.finishToken(8); |
| return; |
| |
| case 58: |
| if (this.hasPlugin("functionBind") && this.input.charCodeAt(this.state.pos + 1) === 58) { |
| this.finishOp(15, 2); |
| } else { |
| ++this.state.pos; |
| this.finishToken(14); |
| } |
| |
| return; |
| |
| case 63: |
| this.readToken_question(); |
| return; |
| |
| case 96: |
| this.readTemplateToken(); |
| return; |
| |
| case 48: |
| { |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (next === 120 || next === 88) { |
| this.readRadixNumber(16); |
| return; |
| } |
| |
| if (next === 111 || next === 79) { |
| this.readRadixNumber(8); |
| return; |
| } |
| |
| if (next === 98 || next === 66) { |
| this.readRadixNumber(2); |
| return; |
| } |
| } |
| |
| case 49: |
| case 50: |
| case 51: |
| case 52: |
| case 53: |
| case 54: |
| case 55: |
| case 56: |
| case 57: |
| this.readNumber(false); |
| return; |
| |
| case 34: |
| case 39: |
| this.readString(code); |
| return; |
| |
| case 47: |
| this.readToken_slash(); |
| return; |
| |
| case 37: |
| case 42: |
| this.readToken_mult_modulo(code); |
| return; |
| |
| case 124: |
| case 38: |
| this.readToken_pipe_amp(code); |
| return; |
| |
| case 94: |
| this.readToken_caret(); |
| return; |
| |
| case 43: |
| case 45: |
| this.readToken_plus_min(code); |
| return; |
| |
| case 60: |
| this.readToken_lt(); |
| return; |
| |
| case 62: |
| this.readToken_gt(); |
| return; |
| |
| case 61: |
| case 33: |
| this.readToken_eq_excl(code); |
| return; |
| |
| case 126: |
| this.finishOp(36, 1); |
| return; |
| |
| case 64: |
| ++this.state.pos; |
| this.finishToken(26); |
| return; |
| |
| case 35: |
| this.readToken_numberSign(); |
| return; |
| |
| case 92: |
| this.readWord(); |
| return; |
| |
| default: |
| if (isIdentifierStart(code)) { |
| this.readWord(code); |
| return; |
| } |
| |
| } |
| |
| throw this.raise(this.state.pos, ErrorMessages.InvalidOrUnexpectedToken, String.fromCodePoint(code)); |
| } |
| |
| finishOp(type, size) { |
| const str = this.input.slice(this.state.pos, this.state.pos + size); |
| this.state.pos += size; |
| this.finishToken(type, str); |
| } |
| |
| readRegexp() { |
| const start = this.state.start + 1; |
| let escaped, inClass; |
| let { |
| pos |
| } = this.state; |
| |
| for (;; ++pos) { |
| if (pos >= this.length) { |
| throw this.raise(start, ErrorMessages.UnterminatedRegExp); |
| } |
| |
| const ch = this.input.charCodeAt(pos); |
| |
| if (isNewLine(ch)) { |
| throw this.raise(start, ErrorMessages.UnterminatedRegExp); |
| } |
| |
| if (escaped) { |
| escaped = false; |
| } else { |
| if (ch === 91) { |
| inClass = true; |
| } else if (ch === 93 && inClass) { |
| inClass = false; |
| } else if (ch === 47 && !inClass) { |
| break; |
| } |
| |
| escaped = ch === 92; |
| } |
| } |
| |
| const content = this.input.slice(start, pos); |
| ++pos; |
| let mods = ""; |
| |
| while (pos < this.length) { |
| const cp = this.codePointAtPos(pos); |
| const char = String.fromCharCode(cp); |
| |
| if (VALID_REGEX_FLAGS.has(cp)) { |
| if (mods.includes(char)) { |
| this.raise(pos + 1, ErrorMessages.DuplicateRegExpFlags); |
| } |
| } else if (isIdentifierChar(cp) || cp === 92) { |
| this.raise(pos + 1, ErrorMessages.MalformedRegExpFlags); |
| } else { |
| break; |
| } |
| |
| ++pos; |
| mods += char; |
| } |
| |
| this.state.pos = pos; |
| this.finishToken(129, { |
| pattern: content, |
| flags: mods |
| }); |
| } |
| |
| readInt(radix, len, forceLen, allowNumSeparator = true) { |
| const start = this.state.pos; |
| const forbiddenSiblings = radix === 16 ? forbiddenNumericSeparatorSiblings.hex : forbiddenNumericSeparatorSiblings.decBinOct; |
| const allowedSiblings = radix === 16 ? allowedNumericSeparatorSiblings.hex : radix === 10 ? allowedNumericSeparatorSiblings.dec : radix === 8 ? allowedNumericSeparatorSiblings.oct : allowedNumericSeparatorSiblings.bin; |
| let invalid = false; |
| let total = 0; |
| |
| for (let i = 0, e = len == null ? Infinity : len; i < e; ++i) { |
| const code = this.input.charCodeAt(this.state.pos); |
| let val; |
| |
| if (code === 95) { |
| const prev = this.input.charCodeAt(this.state.pos - 1); |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (allowedSiblings.indexOf(next) === -1) { |
| this.raise(this.state.pos, ErrorMessages.UnexpectedNumericSeparator); |
| } else if (forbiddenSiblings.indexOf(prev) > -1 || forbiddenSiblings.indexOf(next) > -1 || Number.isNaN(next)) { |
| this.raise(this.state.pos, ErrorMessages.UnexpectedNumericSeparator); |
| } |
| |
| if (!allowNumSeparator) { |
| this.raise(this.state.pos, ErrorMessages.NumericSeparatorInEscapeSequence); |
| } |
| |
| ++this.state.pos; |
| continue; |
| } |
| |
| if (code >= 97) { |
| val = code - 97 + 10; |
| } else if (code >= 65) { |
| val = code - 65 + 10; |
| } else if (_isDigit(code)) { |
| val = code - 48; |
| } else { |
| val = Infinity; |
| } |
| |
| if (val >= radix) { |
| if (this.options.errorRecovery && val <= 9) { |
| val = 0; |
| this.raise(this.state.start + i + 2, ErrorMessages.InvalidDigit, radix); |
| } else if (forceLen) { |
| val = 0; |
| invalid = true; |
| } else { |
| break; |
| } |
| } |
| |
| ++this.state.pos; |
| total = total * radix + val; |
| } |
| |
| if (this.state.pos === start || len != null && this.state.pos - start !== len || invalid) { |
| return null; |
| } |
| |
| return total; |
| } |
| |
| readRadixNumber(radix) { |
| const start = this.state.pos; |
| let isBigInt = false; |
| this.state.pos += 2; |
| const val = this.readInt(radix); |
| |
| if (val == null) { |
| this.raise(this.state.start + 2, ErrorMessages.InvalidDigit, radix); |
| } |
| |
| const next = this.input.charCodeAt(this.state.pos); |
| |
| if (next === 110) { |
| ++this.state.pos; |
| isBigInt = true; |
| } else if (next === 109) { |
| throw this.raise(start, ErrorMessages.InvalidDecimal); |
| } |
| |
| if (isIdentifierStart(this.codePointAtPos(this.state.pos))) { |
| throw this.raise(this.state.pos, ErrorMessages.NumberIdentifier); |
| } |
| |
| if (isBigInt) { |
| const str = this.input.slice(start, this.state.pos).replace(/[_n]/g, ""); |
| this.finishToken(127, str); |
| return; |
| } |
| |
| this.finishToken(126, val); |
| } |
| |
| readNumber(startsWithDot) { |
| const start = this.state.pos; |
| let isFloat = false; |
| let isBigInt = false; |
| let isDecimal = false; |
| let hasExponent = false; |
| let isOctal = false; |
| |
| if (!startsWithDot && this.readInt(10) === null) { |
| this.raise(start, ErrorMessages.InvalidNumber); |
| } |
| |
| const hasLeadingZero = this.state.pos - start >= 2 && this.input.charCodeAt(start) === 48; |
| |
| if (hasLeadingZero) { |
| const integer = this.input.slice(start, this.state.pos); |
| this.recordStrictModeErrors(start, ErrorMessages.StrictOctalLiteral); |
| |
| if (!this.state.strict) { |
| const underscorePos = integer.indexOf("_"); |
| |
| if (underscorePos > 0) { |
| this.raise(underscorePos + start, ErrorMessages.ZeroDigitNumericSeparator); |
| } |
| } |
| |
| isOctal = hasLeadingZero && !/[89]/.test(integer); |
| } |
| |
| let next = this.input.charCodeAt(this.state.pos); |
| |
| if (next === 46 && !isOctal) { |
| ++this.state.pos; |
| this.readInt(10); |
| isFloat = true; |
| next = this.input.charCodeAt(this.state.pos); |
| } |
| |
| if ((next === 69 || next === 101) && !isOctal) { |
| next = this.input.charCodeAt(++this.state.pos); |
| |
| if (next === 43 || next === 45) { |
| ++this.state.pos; |
| } |
| |
| if (this.readInt(10) === null) { |
| this.raise(start, ErrorMessages.InvalidOrMissingExponent); |
| } |
| |
| isFloat = true; |
| hasExponent = true; |
| next = this.input.charCodeAt(this.state.pos); |
| } |
| |
| if (next === 110) { |
| if (isFloat || hasLeadingZero) { |
| this.raise(start, ErrorMessages.InvalidBigIntLiteral); |
| } |
| |
| ++this.state.pos; |
| isBigInt = true; |
| } |
| |
| if (next === 109) { |
| this.expectPlugin("decimal", this.state.pos); |
| |
| if (hasExponent || hasLeadingZero) { |
| this.raise(start, ErrorMessages.InvalidDecimal); |
| } |
| |
| ++this.state.pos; |
| isDecimal = true; |
| } |
| |
| if (isIdentifierStart(this.codePointAtPos(this.state.pos))) { |
| throw this.raise(this.state.pos, ErrorMessages.NumberIdentifier); |
| } |
| |
| const str = this.input.slice(start, this.state.pos).replace(/[_mn]/g, ""); |
| |
| if (isBigInt) { |
| this.finishToken(127, str); |
| return; |
| } |
| |
| if (isDecimal) { |
| this.finishToken(128, str); |
| return; |
| } |
| |
| const val = isOctal ? parseInt(str, 8) : parseFloat(str); |
| this.finishToken(126, val); |
| } |
| |
| readCodePoint(throwOnInvalid) { |
| const ch = this.input.charCodeAt(this.state.pos); |
| let code; |
| |
| if (ch === 123) { |
| const codePos = ++this.state.pos; |
| code = this.readHexChar(this.input.indexOf("}", this.state.pos) - this.state.pos, true, throwOnInvalid); |
| ++this.state.pos; |
| |
| if (code !== null && code > 0x10ffff) { |
| if (throwOnInvalid) { |
| this.raise(codePos, ErrorMessages.InvalidCodePoint); |
| } else { |
| return null; |
| } |
| } |
| } else { |
| code = this.readHexChar(4, false, throwOnInvalid); |
| } |
| |
| return code; |
| } |
| |
| readString(quote) { |
| let out = "", |
| chunkStart = ++this.state.pos; |
| |
| for (;;) { |
| if (this.state.pos >= this.length) { |
| throw this.raise(this.state.start, ErrorMessages.UnterminatedString); |
| } |
| |
| const ch = this.input.charCodeAt(this.state.pos); |
| if (ch === quote) break; |
| |
| if (ch === 92) { |
| out += this.input.slice(chunkStart, this.state.pos); |
| out += this.readEscapedChar(false); |
| chunkStart = this.state.pos; |
| } else if (ch === 8232 || ch === 8233) { |
| ++this.state.pos; |
| ++this.state.curLine; |
| this.state.lineStart = this.state.pos; |
| } else if (isNewLine(ch)) { |
| throw this.raise(this.state.start, ErrorMessages.UnterminatedString); |
| } else { |
| ++this.state.pos; |
| } |
| } |
| |
| out += this.input.slice(chunkStart, this.state.pos++); |
| this.finishToken(125, out); |
| } |
| |
| readTemplateContinuation() { |
| if (!this.match(8)) { |
| this.unexpected(this.state.start, 8); |
| } |
| |
| this.state.pos--; |
| this.readTemplateToken(); |
| } |
| |
| readTemplateToken() { |
| let out = "", |
| chunkStart = this.state.pos, |
| containsInvalid = false; |
| ++this.state.pos; |
| |
| for (;;) { |
| if (this.state.pos >= this.length) { |
| throw this.raise(this.state.start + 1, ErrorMessages.UnterminatedTemplate); |
| } |
| |
| const ch = this.input.charCodeAt(this.state.pos); |
| |
| if (ch === 96) { |
| ++this.state.pos; |
| out += this.input.slice(chunkStart, this.state.pos); |
| this.finishToken(24, containsInvalid ? null : out); |
| return; |
| } |
| |
| if (ch === 36 && this.input.charCodeAt(this.state.pos + 1) === 123) { |
| this.state.pos += 2; |
| out += this.input.slice(chunkStart, this.state.pos); |
| this.finishToken(25, containsInvalid ? null : out); |
| return; |
| } |
| |
| if (ch === 92) { |
| out += this.input.slice(chunkStart, this.state.pos); |
| const escaped = this.readEscapedChar(true); |
| |
| if (escaped === null) { |
| containsInvalid = true; |
| } else { |
| out += escaped; |
| } |
| |
| chunkStart = this.state.pos; |
| } else if (isNewLine(ch)) { |
| out += this.input.slice(chunkStart, this.state.pos); |
| ++this.state.pos; |
| |
| switch (ch) { |
| case 13: |
| if (this.input.charCodeAt(this.state.pos) === 10) { |
| ++this.state.pos; |
| } |
| |
| case 10: |
| out += "\n"; |
| break; |
| |
| default: |
| out += String.fromCharCode(ch); |
| break; |
| } |
| |
| ++this.state.curLine; |
| this.state.lineStart = this.state.pos; |
| chunkStart = this.state.pos; |
| } else { |
| ++this.state.pos; |
| } |
| } |
| } |
| |
| recordStrictModeErrors(pos, message) { |
| if (this.state.strict && !this.state.strictErrors.has(pos)) { |
| this.raise(pos, message); |
| } else { |
| this.state.strictErrors.set(pos, message); |
| } |
| } |
| |
| readEscapedChar(inTemplate) { |
| const throwOnInvalid = !inTemplate; |
| const ch = this.input.charCodeAt(++this.state.pos); |
| ++this.state.pos; |
| |
| switch (ch) { |
| case 110: |
| return "\n"; |
| |
| case 114: |
| return "\r"; |
| |
| case 120: |
| { |
| const code = this.readHexChar(2, false, throwOnInvalid); |
| return code === null ? null : String.fromCharCode(code); |
| } |
| |
| case 117: |
| { |
| const code = this.readCodePoint(throwOnInvalid); |
| return code === null ? null : String.fromCodePoint(code); |
| } |
| |
| case 116: |
| return "\t"; |
| |
| case 98: |
| return "\b"; |
| |
| case 118: |
| return "\u000b"; |
| |
| case 102: |
| return "\f"; |
| |
| case 13: |
| if (this.input.charCodeAt(this.state.pos) === 10) { |
| ++this.state.pos; |
| } |
| |
| case 10: |
| this.state.lineStart = this.state.pos; |
| ++this.state.curLine; |
| |
| case 8232: |
| case 8233: |
| return ""; |
| |
| case 56: |
| case 57: |
| if (inTemplate) { |
| return null; |
| } else { |
| this.recordStrictModeErrors(this.state.pos - 1, ErrorMessages.StrictNumericEscape); |
| } |
| |
| default: |
| if (ch >= 48 && ch <= 55) { |
| const codePos = this.state.pos - 1; |
| const match = this.input.substr(this.state.pos - 1, 3).match(/^[0-7]+/); |
| let octalStr = match[0]; |
| let octal = parseInt(octalStr, 8); |
| |
| if (octal > 255) { |
| octalStr = octalStr.slice(0, -1); |
| octal = parseInt(octalStr, 8); |
| } |
| |
| this.state.pos += octalStr.length - 1; |
| const next = this.input.charCodeAt(this.state.pos); |
| |
| if (octalStr !== "0" || next === 56 || next === 57) { |
| if (inTemplate) { |
| return null; |
| } else { |
| this.recordStrictModeErrors(codePos, ErrorMessages.StrictNumericEscape); |
| } |
| } |
| |
| return String.fromCharCode(octal); |
| } |
| |
| return String.fromCharCode(ch); |
| } |
| } |
| |
| readHexChar(len, forceLen, throwOnInvalid) { |
| const codePos = this.state.pos; |
| const n = this.readInt(16, len, forceLen, false); |
| |
| if (n === null) { |
| if (throwOnInvalid) { |
| this.raise(codePos, ErrorMessages.InvalidEscapeSequence); |
| } else { |
| this.state.pos = codePos - 1; |
| } |
| } |
| |
| return n; |
| } |
| |
| readWord1(firstCode) { |
| this.state.containsEsc = false; |
| let word = ""; |
| const start = this.state.pos; |
| let chunkStart = this.state.pos; |
| |
| if (firstCode !== undefined) { |
| this.state.pos += firstCode <= 0xffff ? 1 : 2; |
| } |
| |
| while (this.state.pos < this.length) { |
| const ch = this.codePointAtPos(this.state.pos); |
| |
| if (isIdentifierChar(ch)) { |
| this.state.pos += ch <= 0xffff ? 1 : 2; |
| } else if (ch === 92) { |
| this.state.containsEsc = true; |
| word += this.input.slice(chunkStart, this.state.pos); |
| const escStart = this.state.pos; |
| const identifierCheck = this.state.pos === start ? isIdentifierStart : isIdentifierChar; |
| |
| if (this.input.charCodeAt(++this.state.pos) !== 117) { |
| this.raise(this.state.pos, ErrorMessages.MissingUnicodeEscape); |
| chunkStart = this.state.pos - 1; |
| continue; |
| } |
| |
| ++this.state.pos; |
| const esc = this.readCodePoint(true); |
| |
| if (esc !== null) { |
| if (!identifierCheck(esc)) { |
| this.raise(escStart, ErrorMessages.EscapedCharNotAnIdentifier); |
| } |
| |
| word += String.fromCodePoint(esc); |
| } |
| |
| chunkStart = this.state.pos; |
| } else { |
| break; |
| } |
| } |
| |
| return word + this.input.slice(chunkStart, this.state.pos); |
| } |
| |
| readWord(firstCode) { |
| const word = this.readWord1(firstCode); |
| const type = keywords$1.get(word); |
| |
| if (type !== undefined) { |
| this.finishToken(type, tokenLabelName(type)); |
| } else { |
| this.finishToken(124, word); |
| } |
| } |
| |
| checkKeywordEscapes() { |
| const { |
| type |
| } = this.state; |
| |
| if (tokenIsKeyword(type) && this.state.containsEsc) { |
| this.raise(this.state.start, ErrorMessages.InvalidEscapedReservedWord, tokenLabelName(type)); |
| } |
| } |
| |
| updateContext(prevType) {} |
| |
| } |
| |
| class ClassScope { |
| constructor() { |
| this.privateNames = new Set(); |
| this.loneAccessors = new Map(); |
| this.undefinedPrivateNames = new Map(); |
| } |
| |
| } |
| class ClassScopeHandler { |
| constructor(raise) { |
| this.stack = []; |
| this.undefinedPrivateNames = new Map(); |
| this.raise = raise; |
| } |
| |
| current() { |
| return this.stack[this.stack.length - 1]; |
| } |
| |
| enter() { |
| this.stack.push(new ClassScope()); |
| } |
| |
| exit() { |
| const oldClassScope = this.stack.pop(); |
| const current = this.current(); |
| |
| for (const [name, pos] of Array.from(oldClassScope.undefinedPrivateNames)) { |
| if (current) { |
| if (!current.undefinedPrivateNames.has(name)) { |
| current.undefinedPrivateNames.set(name, pos); |
| } |
| } else { |
| this.raise(pos, ErrorMessages.InvalidPrivateFieldResolution, name); |
| } |
| } |
| } |
| |
| declarePrivateName(name, elementType, pos) { |
| const { |
| privateNames, |
| loneAccessors, |
| undefinedPrivateNames |
| } = this.current(); |
| let redefined = privateNames.has(name); |
| |
| if (elementType & CLASS_ELEMENT_KIND_ACCESSOR) { |
| const accessor = redefined && loneAccessors.get(name); |
| |
| if (accessor) { |
| const oldStatic = accessor & CLASS_ELEMENT_FLAG_STATIC; |
| const newStatic = elementType & CLASS_ELEMENT_FLAG_STATIC; |
| const oldKind = accessor & CLASS_ELEMENT_KIND_ACCESSOR; |
| const newKind = elementType & CLASS_ELEMENT_KIND_ACCESSOR; |
| redefined = oldKind === newKind || oldStatic !== newStatic; |
| if (!redefined) loneAccessors.delete(name); |
| } else if (!redefined) { |
| loneAccessors.set(name, elementType); |
| } |
| } |
| |
| if (redefined) { |
| this.raise(pos, ErrorMessages.PrivateNameRedeclaration, name); |
| } |
| |
| privateNames.add(name); |
| undefinedPrivateNames.delete(name); |
| } |
| |
| usePrivateName(name, pos) { |
| let classScope; |
| |
| for (classScope of this.stack) { |
| if (classScope.privateNames.has(name)) return; |
| } |
| |
| if (classScope) { |
| classScope.undefinedPrivateNames.set(name, pos); |
| } else { |
| this.raise(pos, ErrorMessages.InvalidPrivateFieldResolution, name); |
| } |
| } |
| |
| } |
| |
| const kExpression = 0, |
| kMaybeArrowParameterDeclaration = 1, |
| kMaybeAsyncArrowParameterDeclaration = 2, |
| kParameterDeclaration = 3; |
| |
| class ExpressionScope { |
| constructor(type = kExpression) { |
| this.type = void 0; |
| this.type = type; |
| } |
| |
| canBeArrowParameterDeclaration() { |
| return this.type === kMaybeAsyncArrowParameterDeclaration || this.type === kMaybeArrowParameterDeclaration; |
| } |
| |
| isCertainlyParameterDeclaration() { |
| return this.type === kParameterDeclaration; |
| } |
| |
| } |
| |
| class ArrowHeadParsingScope extends ExpressionScope { |
| constructor(type) { |
| super(type); |
| this.errors = new Map(); |
| } |
| |
| recordDeclarationError(pos, template) { |
| this.errors.set(pos, template); |
| } |
| |
| clearDeclarationError(pos) { |
| this.errors.delete(pos); |
| } |
| |
| iterateErrors(iterator) { |
| this.errors.forEach(iterator); |
| } |
| |
| } |
| |
| class ExpressionScopeHandler { |
| constructor(raise) { |
| this.stack = [new ExpressionScope()]; |
| this.raise = raise; |
| } |
| |
| enter(scope) { |
| this.stack.push(scope); |
| } |
| |
| exit() { |
| this.stack.pop(); |
| } |
| |
| recordParameterInitializerError(pos, template) { |
| const { |
| stack |
| } = this; |
| let i = stack.length - 1; |
| let scope = stack[i]; |
| |
| while (!scope.isCertainlyParameterDeclaration()) { |
| if (scope.canBeArrowParameterDeclaration()) { |
| scope.recordDeclarationError(pos, template); |
| } else { |
| return; |
| } |
| |
| scope = stack[--i]; |
| } |
| |
| this.raise(pos, template); |
| } |
| |
| recordParenthesizedIdentifierError(pos, template) { |
| const { |
| stack |
| } = this; |
| const scope = stack[stack.length - 1]; |
| |
| if (scope.isCertainlyParameterDeclaration()) { |
| this.raise(pos, template); |
| } else if (scope.canBeArrowParameterDeclaration()) { |
| scope.recordDeclarationError(pos, template); |
| } else { |
| return; |
| } |
| } |
| |
| recordAsyncArrowParametersError(pos, template) { |
| const { |
| stack |
| } = this; |
| let i = stack.length - 1; |
| let scope = stack[i]; |
| |
| while (scope.canBeArrowParameterDeclaration()) { |
| if (scope.type === kMaybeAsyncArrowParameterDeclaration) { |
| scope.recordDeclarationError(pos, template); |
| } |
| |
| scope = stack[--i]; |
| } |
| } |
| |
| validateAsPattern() { |
| const { |
| stack |
| } = this; |
| const currentScope = stack[stack.length - 1]; |
| if (!currentScope.canBeArrowParameterDeclaration()) return; |
| currentScope.iterateErrors((template, pos) => { |
| this.raise(pos, template); |
| let i = stack.length - 2; |
| let scope = stack[i]; |
| |
| while (scope.canBeArrowParameterDeclaration()) { |
| scope.clearDeclarationError(pos); |
| scope = stack[--i]; |
| } |
| }); |
| } |
| |
| } |
| function newParameterDeclarationScope() { |
| return new ExpressionScope(kParameterDeclaration); |
| } |
| function newArrowHeadScope() { |
| return new ArrowHeadParsingScope(kMaybeArrowParameterDeclaration); |
| } |
| function newAsyncArrowScope() { |
| return new ArrowHeadParsingScope(kMaybeAsyncArrowParameterDeclaration); |
| } |
| function newExpressionScope() { |
| return new ExpressionScope(); |
| } |
| |
| const PARAM = 0b0000, |
| PARAM_YIELD = 0b0001, |
| PARAM_AWAIT = 0b0010, |
| PARAM_RETURN = 0b0100, |
| PARAM_IN = 0b1000; |
| class ProductionParameterHandler { |
| constructor() { |
| this.stacks = []; |
| } |
| |
| enter(flags) { |
| this.stacks.push(flags); |
| } |
| |
| exit() { |
| this.stacks.pop(); |
| } |
| |
| currentFlags() { |
| return this.stacks[this.stacks.length - 1]; |
| } |
| |
| get hasAwait() { |
| return (this.currentFlags() & PARAM_AWAIT) > 0; |
| } |
| |
| get hasYield() { |
| return (this.currentFlags() & PARAM_YIELD) > 0; |
| } |
| |
| get hasReturn() { |
| return (this.currentFlags() & PARAM_RETURN) > 0; |
| } |
| |
| get hasIn() { |
| return (this.currentFlags() & PARAM_IN) > 0; |
| } |
| |
| } |
| function functionFlags(isAsync, isGenerator) { |
| return (isAsync ? PARAM_AWAIT : 0) | (isGenerator ? PARAM_YIELD : 0); |
| } |
| |
| class UtilParser extends Tokenizer { |
| addExtra(node, key, val) { |
| if (!node) return; |
| const extra = node.extra = node.extra || {}; |
| extra[key] = val; |
| } |
| |
| isContextual(token) { |
| return this.state.type === token && !this.state.containsEsc; |
| } |
| |
| isUnparsedContextual(nameStart, name) { |
| const nameEnd = nameStart + name.length; |
| |
| if (this.input.slice(nameStart, nameEnd) === name) { |
| const nextCh = this.input.charCodeAt(nameEnd); |
| return !(isIdentifierChar(nextCh) || (nextCh & 0xfc00) === 0xd800); |
| } |
| |
| return false; |
| } |
| |
| isLookaheadContextual(name) { |
| const next = this.nextTokenStart(); |
| return this.isUnparsedContextual(next, name); |
| } |
| |
| eatContextual(token) { |
| if (this.isContextual(token)) { |
| this.next(); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| expectContextual(token, template) { |
| if (!this.eatContextual(token)) this.unexpected(null, template); |
| } |
| |
| canInsertSemicolon() { |
| return this.match(131) || this.match(8) || this.hasPrecedingLineBreak(); |
| } |
| |
| hasPrecedingLineBreak() { |
| return lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start)); |
| } |
| |
| hasFollowingLineBreak() { |
| skipWhiteSpaceToLineBreak.lastIndex = this.state.end; |
| return skipWhiteSpaceToLineBreak.test(this.input); |
| } |
| |
| isLineTerminator() { |
| return this.eat(13) || this.canInsertSemicolon(); |
| } |
| |
| semicolon(allowAsi = true) { |
| if (allowAsi ? this.isLineTerminator() : this.eat(13)) return; |
| this.raise(this.state.lastTokEnd, ErrorMessages.MissingSemicolon); |
| } |
| |
| expect(type, pos) { |
| this.eat(type) || this.unexpected(pos, type); |
| } |
| |
| assertNoSpace(message = "Unexpected space.") { |
| if (this.state.start > this.state.lastTokEnd) { |
| this.raise(this.state.lastTokEnd, { |
| code: ErrorCodes.SyntaxError, |
| reasonCode: "UnexpectedSpace", |
| template: message |
| }); |
| } |
| } |
| |
| unexpected(pos, messageOrType = { |
| code: ErrorCodes.SyntaxError, |
| reasonCode: "UnexpectedToken", |
| template: "Unexpected token" |
| }) { |
| if (isTokenType(messageOrType)) { |
| messageOrType = { |
| code: ErrorCodes.SyntaxError, |
| reasonCode: "UnexpectedToken", |
| template: `Unexpected token, expected "${tokenLabelName(messageOrType)}"` |
| }; |
| } |
| |
| throw this.raise(pos != null ? pos : this.state.start, messageOrType); |
| } |
| |
| getPluginNamesFromConfigs(pluginConfigs) { |
| return pluginConfigs.map(c => { |
| if (typeof c === "string") { |
| return c; |
| } else { |
| return c[0]; |
| } |
| }); |
| } |
| |
| expectPlugin(pluginConfig, pos) { |
| if (!this.hasPlugin(pluginConfig)) { |
| throw this.raiseWithData(pos != null ? pos : this.state.start, { |
| missingPlugin: this.getPluginNamesFromConfigs([pluginConfig]) |
| }, `This experimental syntax requires enabling the parser plugin: ${JSON.stringify(pluginConfig)}.`); |
| } |
| |
| return true; |
| } |
| |
| expectOnePlugin(pluginConfigs, pos) { |
| if (!pluginConfigs.some(c => this.hasPlugin(c))) { |
| throw this.raiseWithData(pos != null ? pos : this.state.start, { |
| missingPlugin: this.getPluginNamesFromConfigs(pluginConfigs) |
| }, `This experimental syntax requires enabling one of the following parser plugin(s): ${pluginConfigs.map(c => JSON.stringify(c)).join(", ")}.`); |
| } |
| } |
| |
| tryParse(fn, oldState = this.state.clone()) { |
| const abortSignal = { |
| node: null |
| }; |
| |
| try { |
| const node = fn((node = null) => { |
| abortSignal.node = node; |
| throw abortSignal; |
| }); |
| |
| if (this.state.errors.length > oldState.errors.length) { |
| const failState = this.state; |
| this.state = oldState; |
| this.state.tokensLength = failState.tokensLength; |
| return { |
| node, |
| error: failState.errors[oldState.errors.length], |
| thrown: false, |
| aborted: false, |
| failState |
| }; |
| } |
| |
| return { |
| node, |
| error: null, |
| thrown: false, |
| aborted: false, |
| failState: null |
| }; |
| } catch (error) { |
| const failState = this.state; |
| this.state = oldState; |
| |
| if (error instanceof SyntaxError) { |
| return { |
| node: null, |
| error, |
| thrown: true, |
| aborted: false, |
| failState |
| }; |
| } |
| |
| if (error === abortSignal) { |
| return { |
| node: abortSignal.node, |
| error: null, |
| thrown: false, |
| aborted: true, |
| failState |
| }; |
| } |
| |
| throw error; |
| } |
| } |
| |
| checkExpressionErrors(refExpressionErrors, andThrow) { |
| if (!refExpressionErrors) return false; |
| const { |
| shorthandAssign, |
| doubleProto, |
| optionalParameters |
| } = refExpressionErrors; |
| const hasErrors = shorthandAssign + doubleProto + optionalParameters > -3; |
| |
| if (!andThrow) { |
| return hasErrors; |
| } else if (hasErrors) { |
| if (shorthandAssign >= 0) { |
| this.raise(shorthandAssign, ErrorMessages.InvalidCoverInitializedName); |
| } |
| |
| if (doubleProto >= 0) { |
| this.raise(doubleProto, ErrorMessages.DuplicateProto); |
| } |
| |
| if (optionalParameters >= 0) { |
| this.unexpected(optionalParameters); |
| } |
| } |
| } |
| |
| isLiteralPropertyName() { |
| return tokenIsLiteralPropertyName(this.state.type); |
| } |
| |
| isPrivateName(node) { |
| return node.type === "PrivateName"; |
| } |
| |
| getPrivateNameSV(node) { |
| return node.id.name; |
| } |
| |
| hasPropertyAsPrivateName(node) { |
| return (node.type === "MemberExpression" || node.type === "OptionalMemberExpression") && this.isPrivateName(node.property); |
| } |
| |
| isOptionalChain(node) { |
| return node.type === "OptionalMemberExpression" || node.type === "OptionalCallExpression"; |
| } |
| |
| isObjectProperty(node) { |
| return node.type === "ObjectProperty"; |
| } |
| |
| isObjectMethod(node) { |
| return node.type === "ObjectMethod"; |
| } |
| |
| initializeScopes(inModule = this.options.sourceType === "module") { |
| const oldLabels = this.state.labels; |
| this.state.labels = []; |
| const oldExportedIdentifiers = this.exportedIdentifiers; |
| this.exportedIdentifiers = new Set(); |
| const oldInModule = this.inModule; |
| this.inModule = inModule; |
| const oldScope = this.scope; |
| const ScopeHandler = this.getScopeHandler(); |
| this.scope = new ScopeHandler(this.raise.bind(this), this.inModule); |
| const oldProdParam = this.prodParam; |
| this.prodParam = new ProductionParameterHandler(); |
| const oldClassScope = this.classScope; |
| this.classScope = new ClassScopeHandler(this.raise.bind(this)); |
| const oldExpressionScope = this.expressionScope; |
| this.expressionScope = new ExpressionScopeHandler(this.raise.bind(this)); |
| return () => { |
| this.state.labels = oldLabels; |
| this.exportedIdentifiers = oldExportedIdentifiers; |
| this.inModule = oldInModule; |
| this.scope = oldScope; |
| this.prodParam = oldProdParam; |
| this.classScope = oldClassScope; |
| this.expressionScope = oldExpressionScope; |
| }; |
| } |
| |
| enterInitialScopes() { |
| let paramFlags = PARAM; |
| |
| if (this.inModule) { |
| paramFlags |= PARAM_AWAIT; |
| } |
| |
| this.scope.enter(SCOPE_PROGRAM); |
| this.prodParam.enter(paramFlags); |
| } |
| |
| } |
| class ExpressionErrors { |
| constructor() { |
| this.shorthandAssign = -1; |
| this.doubleProto = -1; |
| this.optionalParameters = -1; |
| } |
| |
| } |
| |
| class Node { |
| constructor(parser, pos, loc) { |
| this.type = ""; |
| this.start = pos; |
| this.end = 0; |
| this.loc = new SourceLocation(loc); |
| if (parser != null && parser.options.ranges) this.range = [pos, 0]; |
| if (parser != null && parser.filename) this.loc.filename = parser.filename; |
| } |
| |
| } |
| |
| const NodePrototype = Node.prototype; |
| { |
| NodePrototype.__clone = function () { |
| const newNode = new Node(); |
| const keys = Object.keys(this); |
| |
| for (let i = 0, length = keys.length; i < length; i++) { |
| const key = keys[i]; |
| |
| if (key !== "leadingComments" && key !== "trailingComments" && key !== "innerComments") { |
| newNode[key] = this[key]; |
| } |
| } |
| |
| return newNode; |
| }; |
| } |
| |
| function clonePlaceholder(node) { |
| return cloneIdentifier(node); |
| } |
| |
| function cloneIdentifier(node) { |
| const { |
| type, |
| start, |
| end, |
| loc, |
| range, |
| extra, |
| name |
| } = node; |
| const cloned = Object.create(NodePrototype); |
| cloned.type = type; |
| cloned.start = start; |
| cloned.end = end; |
| cloned.loc = loc; |
| cloned.range = range; |
| cloned.extra = extra; |
| cloned.name = name; |
| |
| if (type === "Placeholder") { |
| cloned.expectedNode = node.expectedNode; |
| } |
| |
| return cloned; |
| } |
| function cloneStringLiteral(node) { |
| const { |
| type, |
| start, |
| end, |
| loc, |
| range, |
| extra |
| } = node; |
| |
| if (type === "Placeholder") { |
| return clonePlaceholder(node); |
| } |
| |
| const cloned = Object.create(NodePrototype); |
| cloned.type = type; |
| cloned.start = start; |
| cloned.end = end; |
| cloned.loc = loc; |
| cloned.range = range; |
| |
| if (node.raw !== undefined) { |
| cloned.raw = node.raw; |
| } else { |
| cloned.extra = extra; |
| } |
| |
| cloned.value = node.value; |
| return cloned; |
| } |
| class NodeUtils extends UtilParser { |
| startNode() { |
| return new Node(this, this.state.start, this.state.startLoc); |
| } |
| |
| startNodeAt(pos, loc) { |
| return new Node(this, pos, loc); |
| } |
| |
| startNodeAtNode(type) { |
| return this.startNodeAt(type.start, type.loc.start); |
| } |
| |
| finishNode(node, type) { |
| return this.finishNodeAt(node, type, this.state.lastTokEnd, this.state.lastTokEndLoc); |
| } |
| |
| finishNodeAt(node, type, pos, loc) { |
| |
| node.type = type; |
| node.end = pos; |
| node.loc.end = loc; |
| if (this.options.ranges) node.range[1] = pos; |
| if (this.options.attachComment) this.processComment(node); |
| return node; |
| } |
| |
| resetStartLocation(node, start, startLoc) { |
| node.start = start; |
| node.loc.start = startLoc; |
| if (this.options.ranges) node.range[0] = start; |
| } |
| |
| resetEndLocation(node, end = this.state.lastTokEnd, endLoc = this.state.lastTokEndLoc) { |
| node.end = end; |
| node.loc.end = endLoc; |
| if (this.options.ranges) node.range[1] = end; |
| } |
| |
| resetStartLocationFromNode(node, locationNode) { |
| this.resetStartLocation(node, locationNode.start, locationNode.loc.start); |
| } |
| |
| } |
| |
| const reservedTypes = new Set(["_", "any", "bool", "boolean", "empty", "extends", "false", "interface", "mixed", "null", "number", "static", "string", "true", "typeof", "void"]); |
| const FlowErrors = makeErrorTemplates({ |
| AmbiguousConditionalArrow: "Ambiguous expression: wrap the arrow functions in parentheses to disambiguate.", |
| AmbiguousDeclareModuleKind: "Found both `declare module.exports` and `declare export` in the same module. Modules can only have 1 since they are either an ES module or they are a CommonJS module.", |
| AssignReservedType: "Cannot overwrite reserved type %0.", |
| DeclareClassElement: "The `declare` modifier can only appear on class fields.", |
| DeclareClassFieldInitializer: "Initializers are not allowed in fields with the `declare` modifier.", |
| DuplicateDeclareModuleExports: "Duplicate `declare module.exports` statement.", |
| EnumBooleanMemberNotInitialized: "Boolean enum members need to be initialized. Use either `%0 = true,` or `%0 = false,` in enum `%1`.", |
| EnumDuplicateMemberName: "Enum member names need to be unique, but the name `%0` has already been used before in enum `%1`.", |
| EnumInconsistentMemberValues: "Enum `%0` has inconsistent member initializers. Either use no initializers, or consistently use literals (either booleans, numbers, or strings) for all member initializers.", |
| EnumInvalidExplicitType: "Enum type `%1` is not valid. Use one of `boolean`, `number`, `string`, or `symbol` in enum `%0`.", |
| EnumInvalidExplicitTypeUnknownSupplied: "Supplied enum type is not valid. Use one of `boolean`, `number`, `string`, or `symbol` in enum `%0`.", |
| EnumInvalidMemberInitializerPrimaryType: "Enum `%0` has type `%2`, so the initializer of `%1` needs to be a %2 literal.", |
| EnumInvalidMemberInitializerSymbolType: "Symbol enum members cannot be initialized. Use `%1,` in enum `%0`.", |
| EnumInvalidMemberInitializerUnknownType: "The enum member initializer for `%1` needs to be a literal (either a boolean, number, or string) in enum `%0`.", |
| EnumInvalidMemberName: "Enum member names cannot start with lowercase 'a' through 'z'. Instead of using `%0`, consider using `%1`, in enum `%2`.", |
| EnumNumberMemberNotInitialized: "Number enum members need to be initialized, e.g. `%1 = 1` in enum `%0`.", |
| EnumStringMemberInconsistentlyInitailized: "String enum members need to consistently either all use initializers, or use no initializers, in enum `%0`.", |
| GetterMayNotHaveThisParam: "A getter cannot have a `this` parameter.", |
| ImportTypeShorthandOnlyInPureImport: "The `type` and `typeof` keywords on named imports can only be used on regular `import` statements. It cannot be used with `import type` or `import typeof` statements.", |
| InexactInsideExact: "Explicit inexact syntax cannot appear inside an explicit exact object type.", |
| InexactInsideNonObject: "Explicit inexact syntax cannot appear in class or interface definitions.", |
| InexactVariance: "Explicit inexact syntax cannot have variance.", |
| InvalidNonTypeImportInDeclareModule: "Imports within a `declare module` body must always be `import type` or `import typeof`.", |
| MissingTypeParamDefault: "Type parameter declaration needs a default, since a preceding type parameter declaration has a default.", |
| NestedDeclareModule: "`declare module` cannot be used inside another `declare module`.", |
| NestedFlowComment: "Cannot have a flow comment inside another flow comment.", |
| PatternIsOptional: "A binding pattern parameter cannot be optional in an implementation signature.", |
| SetterMayNotHaveThisParam: "A setter cannot have a `this` parameter.", |
| SpreadVariance: "Spread properties cannot have variance.", |
| ThisParamAnnotationRequired: "A type annotation is required for the `this` parameter.", |
| ThisParamBannedInConstructor: "Constructors cannot have a `this` parameter; constructors don't bind `this` like other functions.", |
| ThisParamMayNotBeOptional: "The `this` parameter cannot be optional.", |
| ThisParamMustBeFirst: "The `this` parameter must be the first function parameter.", |
| ThisParamNoDefault: "The `this` parameter may not have a default value.", |
| TypeBeforeInitializer: "Type annotations must come before default assignments, e.g. instead of `age = 25: number` use `age: number = 25`.", |
| TypeCastInPattern: "The type cast expression is expected to be wrapped with parenthesis.", |
| UnexpectedExplicitInexactInObject: "Explicit inexact syntax must appear at the end of an inexact object.", |
| UnexpectedReservedType: "Unexpected reserved type %0.", |
| UnexpectedReservedUnderscore: "`_` is only allowed as a type argument to call or new.", |
| UnexpectedSpaceBetweenModuloChecks: "Spaces between `%` and `checks` are not allowed here.", |
| UnexpectedSpreadType: "Spread operator cannot appear in class or interface definitions.", |
| UnexpectedSubtractionOperand: 'Unexpected token, expected "number" or "bigint".', |
| UnexpectedTokenAfterTypeParameter: "Expected an arrow function after this type parameter declaration.", |
| UnexpectedTypeParameterBeforeAsyncArrowFunction: "Type parameters must come after the async keyword, e.g. instead of `<T> async () => {}`, use `async <T>() => {}`.", |
| UnsupportedDeclareExportKind: "`declare export %0` is not supported. Use `%1` instead.", |
| UnsupportedStatementInDeclareModule: "Only declares and type imports are allowed inside declare module.", |
| UnterminatedFlowComment: "Unterminated flow-comment." |
| }, ErrorCodes.SyntaxError, "flow"); |
| |
| function isEsModuleType(bodyElement) { |
| return bodyElement.type === "DeclareExportAllDeclaration" || bodyElement.type === "DeclareExportDeclaration" && (!bodyElement.declaration || bodyElement.declaration.type !== "TypeAlias" && bodyElement.declaration.type !== "InterfaceDeclaration"); |
| } |
| |
| function hasTypeImportKind(node) { |
| return node.importKind === "type" || node.importKind === "typeof"; |
| } |
| |
| function isMaybeDefaultImport(type) { |
| return tokenIsKeywordOrIdentifier(type) && type !== 93; |
| } |
| |
| const exportSuggestions = { |
| const: "declare export var", |
| let: "declare export var", |
| type: "export type", |
| interface: "export interface" |
| }; |
| |
| function partition(list, test) { |
| const list1 = []; |
| const list2 = []; |
| |
| for (let i = 0; i < list.length; i++) { |
| (test(list[i], i, list) ? list1 : list2).push(list[i]); |
| } |
| |
| return [list1, list2]; |
| } |
| |
| const FLOW_PRAGMA_REGEX = /\*?\s*@((?:no)?flow)\b/; |
| var flow = (superClass => class extends superClass { |
| constructor(...args) { |
| super(...args); |
| this.flowPragma = undefined; |
| } |
| |
| getScopeHandler() { |
| return FlowScopeHandler; |
| } |
| |
| shouldParseTypes() { |
| return this.getPluginOption("flow", "all") || this.flowPragma === "flow"; |
| } |
| |
| shouldParseEnums() { |
| return !!this.getPluginOption("flow", "enums"); |
| } |
| |
| finishToken(type, val) { |
| if (type !== 125 && type !== 13 && type !== 28) { |
| if (this.flowPragma === undefined) { |
| this.flowPragma = null; |
| } |
| } |
| |
| return super.finishToken(type, val); |
| } |
| |
| addComment(comment) { |
| if (this.flowPragma === undefined) { |
| const matches = FLOW_PRAGMA_REGEX.exec(comment.value); |
| |
| if (!matches) ; else if (matches[1] === "flow") { |
| this.flowPragma = "flow"; |
| } else if (matches[1] === "noflow") { |
| this.flowPragma = "noflow"; |
| } else { |
| throw new Error("Unexpected flow pragma"); |
| } |
| } |
| |
| return super.addComment(comment); |
| } |
| |
| flowParseTypeInitialiser(tok) { |
| const oldInType = this.state.inType; |
| this.state.inType = true; |
| this.expect(tok || 14); |
| const type = this.flowParseType(); |
| this.state.inType = oldInType; |
| return type; |
| } |
| |
| flowParsePredicate() { |
| const node = this.startNode(); |
| const moduloPos = this.state.start; |
| this.next(); |
| this.expectContextual(103); |
| |
| if (this.state.lastTokStart > moduloPos + 1) { |
| this.raise(moduloPos, FlowErrors.UnexpectedSpaceBetweenModuloChecks); |
| } |
| |
| if (this.eat(10)) { |
| node.value = this.parseExpression(); |
| this.expect(11); |
| return this.finishNode(node, "DeclaredPredicate"); |
| } else { |
| return this.finishNode(node, "InferredPredicate"); |
| } |
| } |
| |
| flowParseTypeAndPredicateInitialiser() { |
| const oldInType = this.state.inType; |
| this.state.inType = true; |
| this.expect(14); |
| let type = null; |
| let predicate = null; |
| |
| if (this.match(50)) { |
| this.state.inType = oldInType; |
| predicate = this.flowParsePredicate(); |
| } else { |
| type = this.flowParseType(); |
| this.state.inType = oldInType; |
| |
| if (this.match(50)) { |
| predicate = this.flowParsePredicate(); |
| } |
| } |
| |
| return [type, predicate]; |
| } |
| |
| flowParseDeclareClass(node) { |
| this.next(); |
| this.flowParseInterfaceish(node, true); |
| return this.finishNode(node, "DeclareClass"); |
| } |
| |
| flowParseDeclareFunction(node) { |
| this.next(); |
| const id = node.id = this.parseIdentifier(); |
| const typeNode = this.startNode(); |
| const typeContainer = this.startNode(); |
| |
| if (this.match(45)) { |
| typeNode.typeParameters = this.flowParseTypeParameterDeclaration(); |
| } else { |
| typeNode.typeParameters = null; |
| } |
| |
| this.expect(10); |
| const tmp = this.flowParseFunctionTypeParams(); |
| typeNode.params = tmp.params; |
| typeNode.rest = tmp.rest; |
| typeNode.this = tmp._this; |
| this.expect(11); |
| [typeNode.returnType, node.predicate] = this.flowParseTypeAndPredicateInitialiser(); |
| typeContainer.typeAnnotation = this.finishNode(typeNode, "FunctionTypeAnnotation"); |
| id.typeAnnotation = this.finishNode(typeContainer, "TypeAnnotation"); |
| this.resetEndLocation(id); |
| this.semicolon(); |
| this.scope.declareName(node.id.name, BIND_FLOW_DECLARE_FN, node.id.start); |
| return this.finishNode(node, "DeclareFunction"); |
| } |
| |
| flowParseDeclare(node, insideModule) { |
| if (this.match(76)) { |
| return this.flowParseDeclareClass(node); |
| } else if (this.match(64)) { |
| return this.flowParseDeclareFunction(node); |
| } else if (this.match(70)) { |
| return this.flowParseDeclareVariable(node); |
| } else if (this.eatContextual(119)) { |
| if (this.match(16)) { |
| return this.flowParseDeclareModuleExports(node); |
| } else { |
| if (insideModule) { |
| this.raise(this.state.lastTokStart, FlowErrors.NestedDeclareModule); |
| } |
| |
| return this.flowParseDeclareModule(node); |
| } |
| } else if (this.isContextual(122)) { |
| return this.flowParseDeclareTypeAlias(node); |
| } else if (this.isContextual(123)) { |
| return this.flowParseDeclareOpaqueType(node); |
| } else if (this.isContextual(121)) { |
| return this.flowParseDeclareInterface(node); |
| } else if (this.match(78)) { |
| return this.flowParseDeclareExportDeclaration(node, insideModule); |
| } else { |
| throw this.unexpected(); |
| } |
| } |
| |
| flowParseDeclareVariable(node) { |
| this.next(); |
| node.id = this.flowParseTypeAnnotatableIdentifier(true); |
| this.scope.declareName(node.id.name, BIND_VAR, node.id.start); |
| this.semicolon(); |
| return this.finishNode(node, "DeclareVariable"); |
| } |
| |
| flowParseDeclareModule(node) { |
| this.scope.enter(SCOPE_OTHER); |
| |
| if (this.match(125)) { |
| node.id = this.parseExprAtom(); |
| } else { |
| node.id = this.parseIdentifier(); |
| } |
| |
| const bodyNode = node.body = this.startNode(); |
| const body = bodyNode.body = []; |
| this.expect(5); |
| |
| while (!this.match(8)) { |
| let bodyNode = this.startNode(); |
| |
| if (this.match(79)) { |
| this.next(); |
| |
| if (!this.isContextual(122) && !this.match(83)) { |
| this.raise(this.state.lastTokStart, FlowErrors.InvalidNonTypeImportInDeclareModule); |
| } |
| |
| this.parseImport(bodyNode); |
| } else { |
| this.expectContextual(117, FlowErrors.UnsupportedStatementInDeclareModule); |
| bodyNode = this.flowParseDeclare(bodyNode, true); |
| } |
| |
| body.push(bodyNode); |
| } |
| |
| this.scope.exit(); |
| this.expect(8); |
| this.finishNode(bodyNode, "BlockStatement"); |
| let kind = null; |
| let hasModuleExport = false; |
| body.forEach(bodyElement => { |
| if (isEsModuleType(bodyElement)) { |
| if (kind === "CommonJS") { |
| this.raise(bodyElement.start, FlowErrors.AmbiguousDeclareModuleKind); |
| } |
| |
| kind = "ES"; |
| } else if (bodyElement.type === "DeclareModuleExports") { |
| if (hasModuleExport) { |
| this.raise(bodyElement.start, FlowErrors.DuplicateDeclareModuleExports); |
| } |
| |
| if (kind === "ES") { |
| this.raise(bodyElement.start, FlowErrors.AmbiguousDeclareModuleKind); |
| } |
| |
| kind = "CommonJS"; |
| hasModuleExport = true; |
| } |
| }); |
| node.kind = kind || "CommonJS"; |
| return this.finishNode(node, "DeclareModule"); |
| } |
| |
| flowParseDeclareExportDeclaration(node, insideModule) { |
| this.expect(78); |
| |
| if (this.eat(61)) { |
| if (this.match(64) || this.match(76)) { |
| node.declaration = this.flowParseDeclare(this.startNode()); |
| } else { |
| node.declaration = this.flowParseType(); |
| this.semicolon(); |
| } |
| |
| node.default = true; |
| return this.finishNode(node, "DeclareExportDeclaration"); |
| } else { |
| if (this.match(71) || this.isLet() || (this.isContextual(122) || this.isContextual(121)) && !insideModule) { |
| const label = this.state.value; |
| const suggestion = exportSuggestions[label]; |
| throw this.raise(this.state.start, FlowErrors.UnsupportedDeclareExportKind, label, suggestion); |
| } |
| |
| if (this.match(70) || this.match(64) || this.match(76) || this.isContextual(123)) { |
| node.declaration = this.flowParseDeclare(this.startNode()); |
| node.default = false; |
| return this.finishNode(node, "DeclareExportDeclaration"); |
| } else if (this.match(51) || this.match(5) || this.isContextual(121) || this.isContextual(122) || this.isContextual(123)) { |
| node = this.parseExport(node); |
| |
| if (node.type === "ExportNamedDeclaration") { |
| node.type = "ExportDeclaration"; |
| node.default = false; |
| delete node.exportKind; |
| } |
| |
| node.type = "Declare" + node.type; |
| return node; |
| } |
| } |
| |
| throw this.unexpected(); |
| } |
| |
| flowParseDeclareModuleExports(node) { |
| this.next(); |
| this.expectContextual(104); |
| node.typeAnnotation = this.flowParseTypeAnnotation(); |
| this.semicolon(); |
| return this.finishNode(node, "DeclareModuleExports"); |
| } |
| |
| flowParseDeclareTypeAlias(node) { |
| this.next(); |
| this.flowParseTypeAlias(node); |
| node.type = "DeclareTypeAlias"; |
| return node; |
| } |
| |
| flowParseDeclareOpaqueType(node) { |
| this.next(); |
| this.flowParseOpaqueType(node, true); |
| node.type = "DeclareOpaqueType"; |
| return node; |
| } |
| |
| flowParseDeclareInterface(node) { |
| this.next(); |
| this.flowParseInterfaceish(node); |
| return this.finishNode(node, "DeclareInterface"); |
| } |
| |
| flowParseInterfaceish(node, isClass = false) { |
| node.id = this.flowParseRestrictedIdentifier(!isClass, true); |
| this.scope.declareName(node.id.name, isClass ? BIND_FUNCTION : BIND_LEXICAL, node.id.start); |
| |
| if (this.match(45)) { |
| node.typeParameters = this.flowParseTypeParameterDeclaration(); |
| } else { |
| node.typeParameters = null; |
| } |
| |
| node.extends = []; |
| node.implements = []; |
| node.mixins = []; |
| |
| if (this.eat(77)) { |
| do { |
| node.extends.push(this.flowParseInterfaceExtends()); |
| } while (!isClass && this.eat(12)); |
| } |
| |
| if (this.isContextual(110)) { |
| this.next(); |
| |
| do { |
| node.mixins.push(this.flowParseInterfaceExtends()); |
| } while (this.eat(12)); |
| } |
| |
| if (this.isContextual(106)) { |
| this.next(); |
| |
| do { |
| node.implements.push(this.flowParseInterfaceExtends()); |
| } while (this.eat(12)); |
| } |
| |
| node.body = this.flowParseObjectType({ |
| allowStatic: isClass, |
| allowExact: false, |
| allowSpread: false, |
| allowProto: isClass, |
| allowInexact: false |
| }); |
| } |
| |
| flowParseInterfaceExtends() { |
| const node = this.startNode(); |
| node.id = this.flowParseQualifiedTypeIdentifier(); |
| |
| if (this.match(45)) { |
| node.typeParameters = this.flowParseTypeParameterInstantiation(); |
| } else { |
| node.typeParameters = null; |
| } |
| |
| return this.finishNode(node, "InterfaceExtends"); |
| } |
| |
| flowParseInterface(node) { |
| this.flowParseInterfaceish(node); |
| return this.finishNode(node, "InterfaceDeclaration"); |
| } |
| |
| checkNotUnderscore(word) { |
| if (word === "_") { |
| this.raise(this.state.start, FlowErrors.UnexpectedReservedUnderscore); |
| } |
| } |
| |
| checkReservedType(word, startLoc, declaration) { |
| if (!reservedTypes.has(word)) return; |
| this.raise(startLoc, declaration ? FlowErrors.AssignReservedType : FlowErrors.UnexpectedReservedType, word); |
| } |
| |
| flowParseRestrictedIdentifier(liberal, declaration) { |
| this.checkReservedType(this.state.value, this.state.start, declaration); |
| return this.parseIdentifier(liberal); |
| } |
| |
| flowParseTypeAlias(node) { |
| node.id = this.flowParseRestrictedIdentifier(false, true); |
| this.scope.declareName(node.id.name, BIND_LEXICAL, node.id.start); |
| |
| if (this.match(45)) { |
| node.typeParameters = this.flowParseTypeParameterDeclaration(); |
| } else { |
| node.typeParameters = null; |
| } |
| |
| node.right = this.flowParseTypeInitialiser(29); |
| this.semicolon(); |
| return this.finishNode(node, "TypeAlias"); |
| } |
| |
| flowParseOpaqueType(node, declare) { |
| this.expectContextual(122); |
| node.id = this.flowParseRestrictedIdentifier(true, true); |
| this.scope.declareName(node.id.name, BIND_LEXICAL, node.id.start); |
| |
| if (this.match(45)) { |
| node.typeParameters = this.flowParseTypeParameterDeclaration(); |
| } else { |
| node.typeParameters = null; |
| } |
| |
| node.supertype = null; |
| |
| if (this.match(14)) { |
| node.supertype = this.flowParseTypeInitialiser(14); |
| } |
| |
| node.impltype = null; |
| |
| if (!declare) { |
| node.impltype = this.flowParseTypeInitialiser(29); |
| } |
| |
| this.semicolon(); |
| return this.finishNode(node, "OpaqueType"); |
| } |
| |
| flowParseTypeParameter(requireDefault = false) { |
| const nodeStart = this.state.start; |
| const node = this.startNode(); |
| const variance = this.flowParseVariance(); |
| const ident = this.flowParseTypeAnnotatableIdentifier(); |
| node.name = ident.name; |
| node.variance = variance; |
| node.bound = ident.typeAnnotation; |
| |
| if (this.match(29)) { |
| this.eat(29); |
| node.default = this.flowParseType(); |
| } else { |
| if (requireDefault) { |
| this.raise(nodeStart, FlowErrors.MissingTypeParamDefault); |
| } |
| } |
| |
| return this.finishNode(node, "TypeParameter"); |
| } |
| |
| flowParseTypeParameterDeclaration() { |
| const oldInType = this.state.inType; |
| const node = this.startNode(); |
| node.params = []; |
| this.state.inType = true; |
| |
| if (this.match(45) || this.match(134)) { |
| this.next(); |
| } else { |
| this.unexpected(); |
| } |
| |
| let defaultRequired = false; |
| |
| do { |
| const typeParameter = this.flowParseTypeParameter(defaultRequired); |
| node.params.push(typeParameter); |
| |
| if (typeParameter.default) { |
| defaultRequired = true; |
| } |
| |
| if (!this.match(46)) { |
| this.expect(12); |
| } |
| } while (!this.match(46)); |
| |
| this.expect(46); |
| this.state.inType = oldInType; |
| return this.finishNode(node, "TypeParameterDeclaration"); |
| } |
| |
| flowParseTypeParameterInstantiation() { |
| const node = this.startNode(); |
| const oldInType = this.state.inType; |
| node.params = []; |
| this.state.inType = true; |
| this.expect(45); |
| const oldNoAnonFunctionType = this.state.noAnonFunctionType; |
| this.state.noAnonFunctionType = false; |
| |
| while (!this.match(46)) { |
| node.params.push(this.flowParseType()); |
| |
| if (!this.match(46)) { |
| this.expect(12); |
| } |
| } |
| |
| this.state.noAnonFunctionType = oldNoAnonFunctionType; |
| this.expect(46); |
| this.state.inType = oldInType; |
| return this.finishNode(node, "TypeParameterInstantiation"); |
| } |
| |
| flowParseTypeParameterInstantiationCallOrNew() { |
| const node = this.startNode(); |
| const oldInType = this.state.inType; |
| node.params = []; |
| this.state.inType = true; |
| this.expect(45); |
| |
| while (!this.match(46)) { |
| node.params.push(this.flowParseTypeOrImplicitInstantiation()); |
| |
| if (!this.match(46)) { |
| this.expect(12); |
| } |
| } |
| |
| this.expect(46); |
| this.state.inType = oldInType; |
| return this.finishNode(node, "TypeParameterInstantiation"); |
| } |
| |
| flowParseInterfaceType() { |
| const node = this.startNode(); |
| this.expectContextual(121); |
| node.extends = []; |
| |
| if (this.eat(77)) { |
| do { |
| node.extends.push(this.flowParseInterfaceExtends()); |
| } while (this.eat(12)); |
| } |
| |
| node.body = this.flowParseObjectType({ |
| allowStatic: false, |
| allowExact: false, |
| allowSpread: false, |
| allowProto: false, |
| allowInexact: false |
| }); |
| return this.finishNode(node, "InterfaceTypeAnnotation"); |
| } |
| |
| flowParseObjectPropertyKey() { |
| return this.match(126) || this.match(125) ? this.parseExprAtom() : this.parseIdentifier(true); |
| } |
| |
| flowParseObjectTypeIndexer(node, isStatic, variance) { |
| node.static = isStatic; |
| |
| if (this.lookahead().type === 14) { |
| node.id = this.flowParseObjectPropertyKey(); |
| node.key = this.flowParseTypeInitialiser(); |
| } else { |
| node.id = null; |
| node.key = this.flowParseType(); |
| } |
| |
| this.expect(3); |
| node.value = this.flowParseTypeInitialiser(); |
| node.variance = variance; |
| return this.finishNode(node, "ObjectTypeIndexer"); |
| } |
| |
| flowParseObjectTypeInternalSlot(node, isStatic) { |
| node.static = isStatic; |
| node.id = this.flowParseObjectPropertyKey(); |
| this.expect(3); |
| this.expect(3); |
| |
| if (this.match(45) || this.match(10)) { |
| node.method = true; |
| node.optional = false; |
| node.value = this.flowParseObjectTypeMethodish(this.startNodeAt(node.start, node.loc.start)); |
| } else { |
| node.method = false; |
| |
| if (this.eat(17)) { |
| node.optional = true; |
| } |
| |
| node.value = this.flowParseTypeInitialiser(); |
| } |
| |
| return this.finishNode(node, "ObjectTypeInternalSlot"); |
| } |
| |
| flowParseObjectTypeMethodish(node) { |
| node.params = []; |
| node.rest = null; |
| node.typeParameters = null; |
| node.this = null; |
| |
| if (this.match(45)) { |
| node.typeParameters = this.flowParseTypeParameterDeclaration(); |
| } |
| |
| this.expect(10); |
| |
| if (this.match(74)) { |
| node.this = this.flowParseFunctionTypeParam(true); |
| node.this.name = null; |
| |
| if (!this.match(11)) { |
| this.expect(12); |
| } |
| } |
| |
| while (!this.match(11) && !this.match(21)) { |
| node.params.push(this.flowParseFunctionTypeParam(false)); |
| |
| if (!this.match(11)) { |
| this.expect(12); |
| } |
| } |
| |
| if (this.eat(21)) { |
| node.rest = this.flowParseFunctionTypeParam(false); |
| } |
| |
| this.expect(11); |
| node.returnType = this.flowParseTypeInitialiser(); |
| return this.finishNode(node, "FunctionTypeAnnotation"); |
| } |
| |
| flowParseObjectTypeCallProperty(node, isStatic) { |
| const valueNode = this.startNode(); |
| node.static = isStatic; |
| node.value = this.flowParseObjectTypeMethodish(valueNode); |
| return this.finishNode(node, "ObjectTypeCallProperty"); |
| } |
| |
| flowParseObjectType({ |
| allowStatic, |
| allowExact, |
| allowSpread, |
| allowProto, |
| allowInexact |
| }) { |
| const oldInType = this.state.inType; |
| this.state.inType = true; |
| const nodeStart = this.startNode(); |
| nodeStart.callProperties = []; |
| nodeStart.properties = []; |
| nodeStart.indexers = []; |
| nodeStart.internalSlots = []; |
| let endDelim; |
| let exact; |
| let inexact = false; |
| |
| if (allowExact && this.match(6)) { |
| this.expect(6); |
| endDelim = 9; |
| exact = true; |
| } else { |
| this.expect(5); |
| endDelim = 8; |
| exact = false; |
| } |
| |
| nodeStart.exact = exact; |
| |
| while (!this.match(endDelim)) { |
| let isStatic = false; |
| let protoStart = null; |
| let inexactStart = null; |
| const node = this.startNode(); |
| |
| if (allowProto && this.isContextual(111)) { |
| const lookahead = this.lookahead(); |
| |
| if (lookahead.type !== 14 && lookahead.type !== 17) { |
| this.next(); |
| protoStart = this.state.start; |
| allowStatic = false; |
| } |
| } |
| |
| if (allowStatic && this.isContextual(100)) { |
| const lookahead = this.lookahead(); |
| |
| if (lookahead.type !== 14 && lookahead.type !== 17) { |
| this.next(); |
| isStatic = true; |
| } |
| } |
| |
| const variance = this.flowParseVariance(); |
| |
| if (this.eat(0)) { |
| if (protoStart != null) { |
| this.unexpected(protoStart); |
| } |
| |
| if (this.eat(0)) { |
| if (variance) { |
| this.unexpected(variance.start); |
| } |
| |
| nodeStart.internalSlots.push(this.flowParseObjectTypeInternalSlot(node, isStatic)); |
| } else { |
| nodeStart.indexers.push(this.flowParseObjectTypeIndexer(node, isStatic, variance)); |
| } |
| } else if (this.match(10) || this.match(45)) { |
| if (protoStart != null) { |
| this.unexpected(protoStart); |
| } |
| |
| if (variance) { |
| this.unexpected(variance.start); |
| } |
| |
| nodeStart.callProperties.push(this.flowParseObjectTypeCallProperty(node, isStatic)); |
| } else { |
| let kind = "init"; |
| |
| if (this.isContextual(94) || this.isContextual(99)) { |
| const lookahead = this.lookahead(); |
| |
| if (tokenIsLiteralPropertyName(lookahead.type)) { |
| kind = this.state.value; |
| this.next(); |
| } |
| } |
| |
| const propOrInexact = this.flowParseObjectTypeProperty(node, isStatic, protoStart, variance, kind, allowSpread, allowInexact != null ? allowInexact : !exact); |
| |
| if (propOrInexact === null) { |
| inexact = true; |
| inexactStart = this.state.lastTokStart; |
| } else { |
| nodeStart.properties.push(propOrInexact); |
| } |
| } |
| |
| this.flowObjectTypeSemicolon(); |
| |
| if (inexactStart && !this.match(8) && !this.match(9)) { |
| this.raise(inexactStart, FlowErrors.UnexpectedExplicitInexactInObject); |
| } |
| } |
| |
| this.expect(endDelim); |
| |
| if (allowSpread) { |
| nodeStart.inexact = inexact; |
| } |
| |
| const out = this.finishNode(nodeStart, "ObjectTypeAnnotation"); |
| this.state.inType = oldInType; |
| return out; |
| } |
| |
| flowParseObjectTypeProperty(node, isStatic, protoStart, variance, kind, allowSpread, allowInexact) { |
| if (this.eat(21)) { |
| const isInexactToken = this.match(12) || this.match(13) || this.match(8) || this.match(9); |
| |
| if (isInexactToken) { |
| if (!allowSpread) { |
| this.raise(this.state.lastTokStart, FlowErrors.InexactInsideNonObject); |
| } else if (!allowInexact) { |
| this.raise(this.state.lastTokStart, FlowErrors.InexactInsideExact); |
| } |
| |
| if (variance) { |
| this.raise(variance.start, FlowErrors.InexactVariance); |
| } |
| |
| return null; |
| } |
| |
| if (!allowSpread) { |
| this.raise(this.state.lastTokStart, FlowErrors.UnexpectedSpreadType); |
| } |
| |
| if (protoStart != null) { |
| this.unexpected(protoStart); |
| } |
| |
| if (variance) { |
| this.raise(variance.start, FlowErrors.SpreadVariance); |
| } |
| |
| node.argument = this.flowParseType(); |
| return this.finishNode(node, "ObjectTypeSpreadProperty"); |
| } else { |
| node.key = this.flowParseObjectPropertyKey(); |
| node.static = isStatic; |
| node.proto = protoStart != null; |
| node.kind = kind; |
| let optional = false; |
| |
| if (this.match(45) || this.match(10)) { |
| node.method = true; |
| |
| if (protoStart != null) { |
| this.unexpected(protoStart); |
| } |
| |
| if (variance) { |
| this.unexpected(variance.start); |
| } |
| |
| node.value = this.flowParseObjectTypeMethodish(this.startNodeAt(node.start, node.loc.start)); |
| |
| if (kind === "get" || kind === "set") { |
| this.flowCheckGetterSetterParams(node); |
| } |
| |
| if (!allowSpread && node.key.name === "constructor" && node.value.this) { |
| this.raise(node.value.this.start, FlowErrors.ThisParamBannedInConstructor); |
| } |
| } else { |
| if (kind !== "init") this.unexpected(); |
| node.method = false; |
| |
| if (this.eat(17)) { |
| optional = true; |
| } |
| |
| node.value = this.flowParseTypeInitialiser(); |
| node.variance = variance; |
| } |
| |
| node.optional = optional; |
| return this.finishNode(node, "ObjectTypeProperty"); |
| } |
| } |
| |
| flowCheckGetterSetterParams(property) { |
| const paramCount = property.kind === "get" ? 0 : 1; |
| const start = property.start; |
| const length = property.value.params.length + (property.value.rest ? 1 : 0); |
| |
| if (property.value.this) { |
| this.raise(property.value.this.start, property.kind === "get" ? FlowErrors.GetterMayNotHaveThisParam : FlowErrors.SetterMayNotHaveThisParam); |
| } |
| |
| if (length !== paramCount) { |
| if (property.kind === "get") { |
| this.raise(start, ErrorMessages.BadGetterArity); |
| } else { |
| this.raise(start, ErrorMessages.BadSetterArity); |
| } |
| } |
| |
| if (property.kind === "set" && property.value.rest) { |
| this.raise(start, ErrorMessages.BadSetterRestParameter); |
| } |
| } |
| |
| flowObjectTypeSemicolon() { |
| if (!this.eat(13) && !this.eat(12) && !this.match(8) && !this.match(9)) { |
| this.unexpected(); |
| } |
| } |
| |
| flowParseQualifiedTypeIdentifier(startPos, startLoc, id) { |
| startPos = startPos || this.state.start; |
| startLoc = startLoc || this.state.startLoc; |
| let node = id || this.flowParseRestrictedIdentifier(true); |
| |
| while (this.eat(16)) { |
| const node2 = this.startNodeAt(startPos, startLoc); |
| node2.qualification = node; |
| node2.id = this.flowParseRestrictedIdentifier(true); |
| node = this.finishNode(node2, "QualifiedTypeIdentifier"); |
| } |
| |
| return node; |
| } |
| |
| flowParseGenericType(startPos, startLoc, id) { |
| const node = this.startNodeAt(startPos, startLoc); |
| node.typeParameters = null; |
| node.id = this.flowParseQualifiedTypeIdentifier(startPos, startLoc, id); |
| |
| if (this.match(45)) { |
| node.typeParameters = this.flowParseTypeParameterInstantiation(); |
| } |
| |
| return this.finishNode(node, "GenericTypeAnnotation"); |
| } |
| |
| flowParseTypeofType() { |
| const node = this.startNode(); |
| this.expect(83); |
| node.argument = this.flowParsePrimaryType(); |
| return this.finishNode(node, "TypeofTypeAnnotation"); |
| } |
| |
| flowParseTupleType() { |
| const node = this.startNode(); |
| node.types = []; |
| this.expect(0); |
| |
| while (this.state.pos < this.length && !this.match(3)) { |
| node.types.push(this.flowParseType()); |
| if (this.match(3)) break; |
| this.expect(12); |
| } |
| |
| this.expect(3); |
| return this.finishNode(node, "TupleTypeAnnotation"); |
| } |
| |
| flowParseFunctionTypeParam(first) { |
| let name = null; |
| let optional = false; |
| let typeAnnotation = null; |
| const node = this.startNode(); |
| const lh = this.lookahead(); |
| const isThis = this.state.type === 74; |
| |
| if (lh.type === 14 || lh.type === 17) { |
| if (isThis && !first) { |
| this.raise(node.start, FlowErrors.ThisParamMustBeFirst); |
| } |
| |
| name = this.parseIdentifier(isThis); |
| |
| if (this.eat(17)) { |
| optional = true; |
| |
| if (isThis) { |
| this.raise(node.start, FlowErrors.ThisParamMayNotBeOptional); |
| } |
| } |
| |
| typeAnnotation = this.flowParseTypeInitialiser(); |
| } else { |
| typeAnnotation = this.flowParseType(); |
| } |
| |
| node.name = name; |
| node.optional = optional; |
| node.typeAnnotation = typeAnnotation; |
| return this.finishNode(node, "FunctionTypeParam"); |
| } |
| |
| reinterpretTypeAsFunctionTypeParam(type) { |
| const node = this.startNodeAt(type.start, type.loc.start); |
| node.name = null; |
| node.optional = false; |
| node.typeAnnotation = type; |
| return this.finishNode(node, "FunctionTypeParam"); |
| } |
| |
| flowParseFunctionTypeParams(params = []) { |
| let rest = null; |
| let _this = null; |
| |
| if (this.match(74)) { |
| _this = this.flowParseFunctionTypeParam(true); |
| _this.name = null; |
| |
| if (!this.match(11)) { |
| this.expect(12); |
| } |
| } |
| |
| while (!this.match(11) && !this.match(21)) { |
| params.push(this.flowParseFunctionTypeParam(false)); |
| |
| if (!this.match(11)) { |
| this.expect(12); |
| } |
| } |
| |
| if (this.eat(21)) { |
| rest = this.flowParseFunctionTypeParam(false); |
| } |
| |
| return { |
| params, |
| rest, |
| _this |
| }; |
| } |
| |
| flowIdentToTypeAnnotation(startPos, startLoc, node, id) { |
| switch (id.name) { |
| case "any": |
| return this.finishNode(node, "AnyTypeAnnotation"); |
| |
| case "bool": |
| case "boolean": |
| return this.finishNode(node, "BooleanTypeAnnotation"); |
| |
| case "mixed": |
| return this.finishNode(node, "MixedTypeAnnotation"); |
| |
| case "empty": |
| return this.finishNode(node, "EmptyTypeAnnotation"); |
| |
| case "number": |
| return this.finishNode(node, "NumberTypeAnnotation"); |
| |
| case "string": |
| return this.finishNode(node, "StringTypeAnnotation"); |
| |
| case "symbol": |
| return this.finishNode(node, "SymbolTypeAnnotation"); |
| |
| default: |
| this.checkNotUnderscore(id.name); |
| return this.flowParseGenericType(startPos, startLoc, id); |
| } |
| } |
| |
| flowParsePrimaryType() { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| const node = this.startNode(); |
| let tmp; |
| let type; |
| let isGroupedType = false; |
| const oldNoAnonFunctionType = this.state.noAnonFunctionType; |
| |
| switch (this.state.type) { |
| case 5: |
| return this.flowParseObjectType({ |
| allowStatic: false, |
| allowExact: false, |
| allowSpread: true, |
| allowProto: false, |
| allowInexact: true |
| }); |
| |
| case 6: |
| return this.flowParseObjectType({ |
| allowStatic: false, |
| allowExact: true, |
| allowSpread: true, |
| allowProto: false, |
| allowInexact: false |
| }); |
| |
| case 0: |
| this.state.noAnonFunctionType = false; |
| type = this.flowParseTupleType(); |
| this.state.noAnonFunctionType = oldNoAnonFunctionType; |
| return type; |
| |
| case 45: |
| node.typeParameters = this.flowParseTypeParameterDeclaration(); |
| this.expect(10); |
| tmp = this.flowParseFunctionTypeParams(); |
| node.params = tmp.params; |
| node.rest = tmp.rest; |
| node.this = tmp._this; |
| this.expect(11); |
| this.expect(19); |
| node.returnType = this.flowParseType(); |
| return this.finishNode(node, "FunctionTypeAnnotation"); |
| |
| case 10: |
| this.next(); |
| |
| if (!this.match(11) && !this.match(21)) { |
| if (tokenIsIdentifier(this.state.type) || this.match(74)) { |
| const token = this.lookahead().type; |
| isGroupedType = token !== 17 && token !== 14; |
| } else { |
| isGroupedType = true; |
| } |
| } |
| |
| if (isGroupedType) { |
| this.state.noAnonFunctionType = false; |
| type = this.flowParseType(); |
| this.state.noAnonFunctionType = oldNoAnonFunctionType; |
| |
| if (this.state.noAnonFunctionType || !(this.match(12) || this.match(11) && this.lookahead().type === 19)) { |
| this.expect(11); |
| return type; |
| } else { |
| this.eat(12); |
| } |
| } |
| |
| if (type) { |
| tmp = this.flowParseFunctionTypeParams([this.reinterpretTypeAsFunctionTypeParam(type)]); |
| } else { |
| tmp = this.flowParseFunctionTypeParams(); |
| } |
| |
| node.params = tmp.params; |
| node.rest = tmp.rest; |
| node.this = tmp._this; |
| this.expect(11); |
| this.expect(19); |
| node.returnType = this.flowParseType(); |
| node.typeParameters = null; |
| return this.finishNode(node, "FunctionTypeAnnotation"); |
| |
| case 125: |
| return this.parseLiteral(this.state.value, "StringLiteralTypeAnnotation"); |
| |
| case 81: |
| case 82: |
| node.value = this.match(81); |
| this.next(); |
| return this.finishNode(node, "BooleanLiteralTypeAnnotation"); |
| |
| case 49: |
| if (this.state.value === "-") { |
| this.next(); |
| |
| if (this.match(126)) { |
| return this.parseLiteralAtNode(-this.state.value, "NumberLiteralTypeAnnotation", node); |
| } |
| |
| if (this.match(127)) { |
| return this.parseLiteralAtNode(-this.state.value, "BigIntLiteralTypeAnnotation", node); |
| } |
| |
| throw this.raise(this.state.start, FlowErrors.UnexpectedSubtractionOperand); |
| } |
| |
| throw this.unexpected(); |
| |
| case 126: |
| return this.parseLiteral(this.state.value, "NumberLiteralTypeAnnotation"); |
| |
| case 127: |
| return this.parseLiteral(this.state.value, "BigIntLiteralTypeAnnotation"); |
| |
| case 84: |
| this.next(); |
| return this.finishNode(node, "VoidTypeAnnotation"); |
| |
| case 80: |
| this.next(); |
| return this.finishNode(node, "NullLiteralTypeAnnotation"); |
| |
| case 74: |
| this.next(); |
| return this.finishNode(node, "ThisTypeAnnotation"); |
| |
| case 51: |
| this.next(); |
| return this.finishNode(node, "ExistsTypeAnnotation"); |
| |
| case 83: |
| return this.flowParseTypeofType(); |
| |
| default: |
| if (tokenIsKeyword(this.state.type)) { |
| const label = tokenLabelName(this.state.type); |
| this.next(); |
| return super.createIdentifier(node, label); |
| } else if (tokenIsIdentifier(this.state.type)) { |
| if (this.isContextual(121)) { |
| return this.flowParseInterfaceType(); |
| } |
| |
| return this.flowIdentToTypeAnnotation(startPos, startLoc, node, this.parseIdentifier()); |
| } |
| |
| } |
| |
| throw this.unexpected(); |
| } |
| |
| flowParsePostfixType() { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| let type = this.flowParsePrimaryType(); |
| let seenOptionalIndexedAccess = false; |
| |
| while ((this.match(0) || this.match(18)) && !this.canInsertSemicolon()) { |
| const node = this.startNodeAt(startPos, startLoc); |
| const optional = this.eat(18); |
| seenOptionalIndexedAccess = seenOptionalIndexedAccess || optional; |
| this.expect(0); |
| |
| if (!optional && this.match(3)) { |
| node.elementType = type; |
| this.next(); |
| type = this.finishNode(node, "ArrayTypeAnnotation"); |
| } else { |
| node.objectType = type; |
| node.indexType = this.flowParseType(); |
| this.expect(3); |
| |
| if (seenOptionalIndexedAccess) { |
| node.optional = optional; |
| type = this.finishNode(node, "OptionalIndexedAccessType"); |
| } else { |
| type = this.finishNode(node, "IndexedAccessType"); |
| } |
| } |
| } |
| |
| return type; |
| } |
| |
| flowParsePrefixType() { |
| const node = this.startNode(); |
| |
| if (this.eat(17)) { |
| node.typeAnnotation = this.flowParsePrefixType(); |
| return this.finishNode(node, "NullableTypeAnnotation"); |
| } else { |
| return this.flowParsePostfixType(); |
| } |
| } |
| |
| flowParseAnonFunctionWithoutParens() { |
| const param = this.flowParsePrefixType(); |
| |
| if (!this.state.noAnonFunctionType && this.eat(19)) { |
| const node = this.startNodeAt(param.start, param.loc.start); |
| node.params = [this.reinterpretTypeAsFunctionTypeParam(param)]; |
| node.rest = null; |
| node.this = null; |
| node.returnType = this.flowParseType(); |
| node.typeParameters = null; |
| return this.finishNode(node, "FunctionTypeAnnotation"); |
| } |
| |
| return param; |
| } |
| |
| flowParseIntersectionType() { |
| const node = this.startNode(); |
| this.eat(43); |
| const type = this.flowParseAnonFunctionWithoutParens(); |
| node.types = [type]; |
| |
| while (this.eat(43)) { |
| node.types.push(this.flowParseAnonFunctionWithoutParens()); |
| } |
| |
| return node.types.length === 1 ? type : this.finishNode(node, "IntersectionTypeAnnotation"); |
| } |
| |
| flowParseUnionType() { |
| const node = this.startNode(); |
| this.eat(41); |
| const type = this.flowParseIntersectionType(); |
| node.types = [type]; |
| |
| while (this.eat(41)) { |
| node.types.push(this.flowParseIntersectionType()); |
| } |
| |
| return node.types.length === 1 ? type : this.finishNode(node, "UnionTypeAnnotation"); |
| } |
| |
| flowParseType() { |
| const oldInType = this.state.inType; |
| this.state.inType = true; |
| const type = this.flowParseUnionType(); |
| this.state.inType = oldInType; |
| return type; |
| } |
| |
| flowParseTypeOrImplicitInstantiation() { |
| if (this.state.type === 124 && this.state.value === "_") { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| const node = this.parseIdentifier(); |
| return this.flowParseGenericType(startPos, startLoc, node); |
| } else { |
| return this.flowParseType(); |
| } |
| } |
| |
| flowParseTypeAnnotation() { |
| const node = this.startNode(); |
| node.typeAnnotation = this.flowParseTypeInitialiser(); |
| return this.finishNode(node, "TypeAnnotation"); |
| } |
| |
| flowParseTypeAnnotatableIdentifier(allowPrimitiveOverride) { |
| const ident = allowPrimitiveOverride ? this.parseIdentifier() : this.flowParseRestrictedIdentifier(); |
| |
| if (this.match(14)) { |
| ident.typeAnnotation = this.flowParseTypeAnnotation(); |
| this.resetEndLocation(ident); |
| } |
| |
| return ident; |
| } |
| |
| typeCastToParameter(node) { |
| node.expression.typeAnnotation = node.typeAnnotation; |
| this.resetEndLocation(node.expression, node.typeAnnotation.end, node.typeAnnotation.loc.end); |
| return node.expression; |
| } |
| |
| flowParseVariance() { |
| let variance = null; |
| |
| if (this.match(49)) { |
| variance = this.startNode(); |
| |
| if (this.state.value === "+") { |
| variance.kind = "plus"; |
| } else { |
| variance.kind = "minus"; |
| } |
| |
| this.next(); |
| this.finishNode(variance, "Variance"); |
| } |
| |
| return variance; |
| } |
| |
| parseFunctionBody(node, allowExpressionBody, isMethod = false) { |
| if (allowExpressionBody) { |
| return this.forwardNoArrowParamsConversionAt(node, () => super.parseFunctionBody(node, true, isMethod)); |
| } |
| |
| return super.parseFunctionBody(node, false, isMethod); |
| } |
| |
| parseFunctionBodyAndFinish(node, type, isMethod = false) { |
| if (this.match(14)) { |
| const typeNode = this.startNode(); |
| [typeNode.typeAnnotation, node.predicate] = this.flowParseTypeAndPredicateInitialiser(); |
| node.returnType = typeNode.typeAnnotation ? this.finishNode(typeNode, "TypeAnnotation") : null; |
| } |
| |
| super.parseFunctionBodyAndFinish(node, type, isMethod); |
| } |
| |
| parseStatement(context, topLevel) { |
| if (this.state.strict && this.isContextual(121)) { |
| const lookahead = this.lookahead(); |
| |
| if (tokenIsKeywordOrIdentifier(lookahead.type)) { |
| const node = this.startNode(); |
| this.next(); |
| return this.flowParseInterface(node); |
| } |
| } else if (this.shouldParseEnums() && this.isContextual(118)) { |
| const node = this.startNode(); |
| this.next(); |
| return this.flowParseEnumDeclaration(node); |
| } |
| |
| const stmt = super.parseStatement(context, topLevel); |
| |
| if (this.flowPragma === undefined && !this.isValidDirective(stmt)) { |
| this.flowPragma = null; |
| } |
| |
| return stmt; |
| } |
| |
| parseExpressionStatement(node, expr) { |
| if (expr.type === "Identifier") { |
| if (expr.name === "declare") { |
| if (this.match(76) || tokenIsIdentifier(this.state.type) || this.match(64) || this.match(70) || this.match(78)) { |
| return this.flowParseDeclare(node); |
| } |
| } else if (tokenIsIdentifier(this.state.type)) { |
| if (expr.name === "interface") { |
| return this.flowParseInterface(node); |
| } else if (expr.name === "type") { |
| return this.flowParseTypeAlias(node); |
| } else if (expr.name === "opaque") { |
| return this.flowParseOpaqueType(node, false); |
| } |
| } |
| } |
| |
| return super.parseExpressionStatement(node, expr); |
| } |
| |
| shouldParseExportDeclaration() { |
| const { |
| type |
| } = this.state; |
| |
| if (tokenIsFlowInterfaceOrTypeOrOpaque(type) || this.shouldParseEnums() && type === 118) { |
| return !this.state.containsEsc; |
| } |
| |
| return super.shouldParseExportDeclaration(); |
| } |
| |
| isExportDefaultSpecifier() { |
| const { |
| type |
| } = this.state; |
| |
| if (tokenIsFlowInterfaceOrTypeOrOpaque(type) || this.shouldParseEnums() && type === 118) { |
| return this.state.containsEsc; |
| } |
| |
| return super.isExportDefaultSpecifier(); |
| } |
| |
| parseExportDefaultExpression() { |
| if (this.shouldParseEnums() && this.isContextual(118)) { |
| const node = this.startNode(); |
| this.next(); |
| return this.flowParseEnumDeclaration(node); |
| } |
| |
| return super.parseExportDefaultExpression(); |
| } |
| |
| parseConditional(expr, startPos, startLoc, refExpressionErrors) { |
| if (!this.match(17)) return expr; |
| |
| if (this.state.maybeInArrowParameters) { |
| const nextCh = this.lookaheadCharCode(); |
| |
| if (nextCh === 44 || nextCh === 61 || nextCh === 58 || nextCh === 41) { |
| this.setOptionalParametersError(refExpressionErrors); |
| return expr; |
| } |
| } |
| |
| this.expect(17); |
| const state = this.state.clone(); |
| const originalNoArrowAt = this.state.noArrowAt; |
| const node = this.startNodeAt(startPos, startLoc); |
| let { |
| consequent, |
| failed |
| } = this.tryParseConditionalConsequent(); |
| let [valid, invalid] = this.getArrowLikeExpressions(consequent); |
| |
| if (failed || invalid.length > 0) { |
| const noArrowAt = [...originalNoArrowAt]; |
| |
| if (invalid.length > 0) { |
| this.state = state; |
| this.state.noArrowAt = noArrowAt; |
| |
| for (let i = 0; i < invalid.length; i++) { |
| noArrowAt.push(invalid[i].start); |
| } |
| |
| ({ |
| consequent, |
| failed |
| } = this.tryParseConditionalConsequent()); |
| [valid, invalid] = this.getArrowLikeExpressions(consequent); |
| } |
| |
| if (failed && valid.length > 1) { |
| this.raise(state.start, FlowErrors.AmbiguousConditionalArrow); |
| } |
| |
| if (failed && valid.length === 1) { |
| this.state = state; |
| noArrowAt.push(valid[0].start); |
| this.state.noArrowAt = noArrowAt; |
| ({ |
| consequent, |
| failed |
| } = this.tryParseConditionalConsequent()); |
| } |
| } |
| |
| this.getArrowLikeExpressions(consequent, true); |
| this.state.noArrowAt = originalNoArrowAt; |
| this.expect(14); |
| node.test = expr; |
| node.consequent = consequent; |
| node.alternate = this.forwardNoArrowParamsConversionAt(node, () => this.parseMaybeAssign(undefined, undefined)); |
| return this.finishNode(node, "ConditionalExpression"); |
| } |
| |
| tryParseConditionalConsequent() { |
| this.state.noArrowParamsConversionAt.push(this.state.start); |
| const consequent = this.parseMaybeAssignAllowIn(); |
| const failed = !this.match(14); |
| this.state.noArrowParamsConversionAt.pop(); |
| return { |
| consequent, |
| failed |
| }; |
| } |
| |
| getArrowLikeExpressions(node, disallowInvalid) { |
| const stack = [node]; |
| const arrows = []; |
| |
| while (stack.length !== 0) { |
| const node = stack.pop(); |
| |
| if (node.type === "ArrowFunctionExpression") { |
| if (node.typeParameters || !node.returnType) { |
| this.finishArrowValidation(node); |
| } else { |
| arrows.push(node); |
| } |
| |
| stack.push(node.body); |
| } else if (node.type === "ConditionalExpression") { |
| stack.push(node.consequent); |
| stack.push(node.alternate); |
| } |
| } |
| |
| if (disallowInvalid) { |
| arrows.forEach(node => this.finishArrowValidation(node)); |
| return [arrows, []]; |
| } |
| |
| return partition(arrows, node => node.params.every(param => this.isAssignable(param, true))); |
| } |
| |
| finishArrowValidation(node) { |
| var _node$extra; |
| |
| this.toAssignableList(node.params, (_node$extra = node.extra) == null ? void 0 : _node$extra.trailingComma, false); |
| this.scope.enter(SCOPE_FUNCTION | SCOPE_ARROW); |
| super.checkParams(node, false, true); |
| this.scope.exit(); |
| } |
| |
| forwardNoArrowParamsConversionAt(node, parse) { |
| let result; |
| |
| if (this.state.noArrowParamsConversionAt.indexOf(node.start) !== -1) { |
| this.state.noArrowParamsConversionAt.push(this.state.start); |
| result = parse(); |
| this.state.noArrowParamsConversionAt.pop(); |
| } else { |
| result = parse(); |
| } |
| |
| return result; |
| } |
| |
| parseParenItem(node, startPos, startLoc) { |
| node = super.parseParenItem(node, startPos, startLoc); |
| |
| if (this.eat(17)) { |
| node.optional = true; |
| this.resetEndLocation(node); |
| } |
| |
| if (this.match(14)) { |
| const typeCastNode = this.startNodeAt(startPos, startLoc); |
| typeCastNode.expression = node; |
| typeCastNode.typeAnnotation = this.flowParseTypeAnnotation(); |
| return this.finishNode(typeCastNode, "TypeCastExpression"); |
| } |
| |
| return node; |
| } |
| |
| assertModuleNodeAllowed(node) { |
| if (node.type === "ImportDeclaration" && (node.importKind === "type" || node.importKind === "typeof") || node.type === "ExportNamedDeclaration" && node.exportKind === "type" || node.type === "ExportAllDeclaration" && node.exportKind === "type") { |
| return; |
| } |
| |
| super.assertModuleNodeAllowed(node); |
| } |
| |
| parseExport(node) { |
| const decl = super.parseExport(node); |
| |
| if (decl.type === "ExportNamedDeclaration" || decl.type === "ExportAllDeclaration") { |
| decl.exportKind = decl.exportKind || "value"; |
| } |
| |
| return decl; |
| } |
| |
| parseExportDeclaration(node) { |
| if (this.isContextual(122)) { |
| node.exportKind = "type"; |
| const declarationNode = this.startNode(); |
| this.next(); |
| |
| if (this.match(5)) { |
| node.specifiers = this.parseExportSpecifiers(true); |
| this.parseExportFrom(node); |
| return null; |
| } else { |
| return this.flowParseTypeAlias(declarationNode); |
| } |
| } else if (this.isContextual(123)) { |
| node.exportKind = "type"; |
| const declarationNode = this.startNode(); |
| this.next(); |
| return this.flowParseOpaqueType(declarationNode, false); |
| } else if (this.isContextual(121)) { |
| node.exportKind = "type"; |
| const declarationNode = this.startNode(); |
| this.next(); |
| return this.flowParseInterface(declarationNode); |
| } else if (this.shouldParseEnums() && this.isContextual(118)) { |
| node.exportKind = "value"; |
| const declarationNode = this.startNode(); |
| this.next(); |
| return this.flowParseEnumDeclaration(declarationNode); |
| } else { |
| return super.parseExportDeclaration(node); |
| } |
| } |
| |
| eatExportStar(node) { |
| if (super.eatExportStar(...arguments)) return true; |
| |
| if (this.isContextual(122) && this.lookahead().type === 51) { |
| node.exportKind = "type"; |
| this.next(); |
| this.next(); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| maybeParseExportNamespaceSpecifier(node) { |
| const pos = this.state.start; |
| const hasNamespace = super.maybeParseExportNamespaceSpecifier(node); |
| |
| if (hasNamespace && node.exportKind === "type") { |
| this.unexpected(pos); |
| } |
| |
| return hasNamespace; |
| } |
| |
| parseClassId(node, isStatement, optionalId) { |
| super.parseClassId(node, isStatement, optionalId); |
| |
| if (this.match(45)) { |
| node.typeParameters = this.flowParseTypeParameterDeclaration(); |
| } |
| } |
| |
| parseClassMember(classBody, member, state) { |
| const pos = this.state.start; |
| |
| if (this.isContextual(117)) { |
| if (this.parseClassMemberFromModifier(classBody, member)) { |
| return; |
| } |
| |
| member.declare = true; |
| } |
| |
| super.parseClassMember(classBody, member, state); |
| |
| if (member.declare) { |
| if (member.type !== "ClassProperty" && member.type !== "ClassPrivateProperty" && member.type !== "PropertyDefinition") { |
| this.raise(pos, FlowErrors.DeclareClassElement); |
| } else if (member.value) { |
| this.raise(member.value.start, FlowErrors.DeclareClassFieldInitializer); |
| } |
| } |
| } |
| |
| isIterator(word) { |
| return word === "iterator" || word === "asyncIterator"; |
| } |
| |
| readIterator() { |
| const word = super.readWord1(); |
| const fullWord = "@@" + word; |
| |
| if (!this.isIterator(word) || !this.state.inType) { |
| this.raise(this.state.pos, ErrorMessages.InvalidIdentifier, fullWord); |
| } |
| |
| this.finishToken(124, fullWord); |
| } |
| |
| getTokenFromCode(code) { |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (code === 123 && next === 124) { |
| return this.finishOp(6, 2); |
| } else if (this.state.inType && (code === 62 || code === 60)) { |
| return this.finishOp(code === 62 ? 46 : 45, 1); |
| } else if (this.state.inType && code === 63) { |
| if (next === 46) { |
| return this.finishOp(18, 2); |
| } |
| |
| return this.finishOp(17, 1); |
| } else if (isIteratorStart(code, next)) { |
| this.state.pos += 2; |
| return this.readIterator(); |
| } else { |
| return super.getTokenFromCode(code); |
| } |
| } |
| |
| isAssignable(node, isBinding) { |
| if (node.type === "TypeCastExpression") { |
| return this.isAssignable(node.expression, isBinding); |
| } else { |
| return super.isAssignable(node, isBinding); |
| } |
| } |
| |
| toAssignable(node, isLHS = false) { |
| if (node.type === "TypeCastExpression") { |
| return super.toAssignable(this.typeCastToParameter(node), isLHS); |
| } else { |
| return super.toAssignable(node, isLHS); |
| } |
| } |
| |
| toAssignableList(exprList, trailingCommaPos, isLHS) { |
| for (let i = 0; i < exprList.length; i++) { |
| const expr = exprList[i]; |
| |
| if ((expr == null ? void 0 : expr.type) === "TypeCastExpression") { |
| exprList[i] = this.typeCastToParameter(expr); |
| } |
| } |
| |
| return super.toAssignableList(exprList, trailingCommaPos, isLHS); |
| } |
| |
| toReferencedList(exprList, isParenthesizedExpr) { |
| for (let i = 0; i < exprList.length; i++) { |
| var _expr$extra; |
| |
| const expr = exprList[i]; |
| |
| if (expr && expr.type === "TypeCastExpression" && !((_expr$extra = expr.extra) != null && _expr$extra.parenthesized) && (exprList.length > 1 || !isParenthesizedExpr)) { |
| this.raise(expr.typeAnnotation.start, FlowErrors.TypeCastInPattern); |
| } |
| } |
| |
| return exprList; |
| } |
| |
| parseArrayLike(close, canBePattern, isTuple, refExpressionErrors) { |
| const node = super.parseArrayLike(close, canBePattern, isTuple, refExpressionErrors); |
| |
| if (canBePattern && !this.state.maybeInArrowParameters) { |
| this.toReferencedList(node.elements); |
| } |
| |
| return node; |
| } |
| |
| checkLVal(expr, ...args) { |
| if (expr.type !== "TypeCastExpression") { |
| return super.checkLVal(expr, ...args); |
| } |
| } |
| |
| parseClassProperty(node) { |
| if (this.match(14)) { |
| node.typeAnnotation = this.flowParseTypeAnnotation(); |
| } |
| |
| return super.parseClassProperty(node); |
| } |
| |
| parseClassPrivateProperty(node) { |
| if (this.match(14)) { |
| node.typeAnnotation = this.flowParseTypeAnnotation(); |
| } |
| |
| return super.parseClassPrivateProperty(node); |
| } |
| |
| isClassMethod() { |
| return this.match(45) || super.isClassMethod(); |
| } |
| |
| isClassProperty() { |
| return this.match(14) || super.isClassProperty(); |
| } |
| |
| isNonstaticConstructor(method) { |
| return !this.match(14) && super.isNonstaticConstructor(method); |
| } |
| |
| pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper) { |
| if (method.variance) { |
| this.unexpected(method.variance.start); |
| } |
| |
| delete method.variance; |
| |
| if (this.match(45)) { |
| method.typeParameters = this.flowParseTypeParameterDeclaration(); |
| } |
| |
| super.pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper); |
| |
| if (method.params && isConstructor) { |
| const params = method.params; |
| |
| if (params.length > 0 && this.isThisParam(params[0])) { |
| this.raise(method.start, FlowErrors.ThisParamBannedInConstructor); |
| } |
| } else if (method.type === "MethodDefinition" && isConstructor && method.value.params) { |
| const params = method.value.params; |
| |
| if (params.length > 0 && this.isThisParam(params[0])) { |
| this.raise(method.start, FlowErrors.ThisParamBannedInConstructor); |
| } |
| } |
| } |
| |
| pushClassPrivateMethod(classBody, method, isGenerator, isAsync) { |
| if (method.variance) { |
| this.unexpected(method.variance.start); |
| } |
| |
| delete method.variance; |
| |
| if (this.match(45)) { |
| method.typeParameters = this.flowParseTypeParameterDeclaration(); |
| } |
| |
| super.pushClassPrivateMethod(classBody, method, isGenerator, isAsync); |
| } |
| |
| parseClassSuper(node) { |
| super.parseClassSuper(node); |
| |
| if (node.superClass && this.match(45)) { |
| node.superTypeParameters = this.flowParseTypeParameterInstantiation(); |
| } |
| |
| if (this.isContextual(106)) { |
| this.next(); |
| const implemented = node.implements = []; |
| |
| do { |
| const node = this.startNode(); |
| node.id = this.flowParseRestrictedIdentifier(true); |
| |
| if (this.match(45)) { |
| node.typeParameters = this.flowParseTypeParameterInstantiation(); |
| } else { |
| node.typeParameters = null; |
| } |
| |
| implemented.push(this.finishNode(node, "ClassImplements")); |
| } while (this.eat(12)); |
| } |
| } |
| |
| checkGetterSetterParams(method) { |
| super.checkGetterSetterParams(method); |
| const params = this.getObjectOrClassMethodParams(method); |
| |
| if (params.length > 0) { |
| const param = params[0]; |
| |
| if (this.isThisParam(param) && method.kind === "get") { |
| this.raise(param.start, FlowErrors.GetterMayNotHaveThisParam); |
| } else if (this.isThisParam(param)) { |
| this.raise(param.start, FlowErrors.SetterMayNotHaveThisParam); |
| } |
| } |
| } |
| |
| parsePropertyNamePrefixOperator(node) { |
| node.variance = this.flowParseVariance(); |
| } |
| |
| parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, isPattern, isAccessor, refExpressionErrors) { |
| if (prop.variance) { |
| this.unexpected(prop.variance.start); |
| } |
| |
| delete prop.variance; |
| let typeParameters; |
| |
| if (this.match(45) && !isAccessor) { |
| typeParameters = this.flowParseTypeParameterDeclaration(); |
| if (!this.match(10)) this.unexpected(); |
| } |
| |
| super.parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, isPattern, isAccessor, refExpressionErrors); |
| |
| if (typeParameters) { |
| (prop.value || prop).typeParameters = typeParameters; |
| } |
| } |
| |
| parseAssignableListItemTypes(param) { |
| if (this.eat(17)) { |
| if (param.type !== "Identifier") { |
| this.raise(param.start, FlowErrors.PatternIsOptional); |
| } |
| |
| if (this.isThisParam(param)) { |
| this.raise(param.start, FlowErrors.ThisParamMayNotBeOptional); |
| } |
| |
| param.optional = true; |
| } |
| |
| if (this.match(14)) { |
| param.typeAnnotation = this.flowParseTypeAnnotation(); |
| } else if (this.isThisParam(param)) { |
| this.raise(param.start, FlowErrors.ThisParamAnnotationRequired); |
| } |
| |
| if (this.match(29) && this.isThisParam(param)) { |
| this.raise(param.start, FlowErrors.ThisParamNoDefault); |
| } |
| |
| this.resetEndLocation(param); |
| return param; |
| } |
| |
| parseMaybeDefault(startPos, startLoc, left) { |
| const node = super.parseMaybeDefault(startPos, startLoc, left); |
| |
| if (node.type === "AssignmentPattern" && node.typeAnnotation && node.right.start < node.typeAnnotation.start) { |
| this.raise(node.typeAnnotation.start, FlowErrors.TypeBeforeInitializer); |
| } |
| |
| return node; |
| } |
| |
| shouldParseDefaultImport(node) { |
| if (!hasTypeImportKind(node)) { |
| return super.shouldParseDefaultImport(node); |
| } |
| |
| return isMaybeDefaultImport(this.state.type); |
| } |
| |
| parseImportSpecifierLocal(node, specifier, type, contextDescription) { |
| specifier.local = hasTypeImportKind(node) ? this.flowParseRestrictedIdentifier(true, true) : this.parseIdentifier(); |
| this.checkLVal(specifier.local, contextDescription, BIND_LEXICAL); |
| node.specifiers.push(this.finishNode(specifier, type)); |
| } |
| |
| maybeParseDefaultImportSpecifier(node) { |
| node.importKind = "value"; |
| let kind = null; |
| |
| if (this.match(83)) { |
| kind = "typeof"; |
| } else if (this.isContextual(122)) { |
| kind = "type"; |
| } |
| |
| if (kind) { |
| const lh = this.lookahead(); |
| const { |
| type |
| } = lh; |
| |
| if (kind === "type" && type === 51) { |
| this.unexpected(lh.start); |
| } |
| |
| if (isMaybeDefaultImport(type) || type === 5 || type === 51) { |
| this.next(); |
| node.importKind = kind; |
| } |
| } |
| |
| return super.maybeParseDefaultImportSpecifier(node); |
| } |
| |
| parseImportSpecifier(specifier, importedIsString, isInTypeOnlyImport, isMaybeTypeOnly) { |
| const firstIdent = specifier.imported; |
| let specifierTypeKind = null; |
| |
| if (firstIdent.type === "Identifier") { |
| if (firstIdent.name === "type") { |
| specifierTypeKind = "type"; |
| } else if (firstIdent.name === "typeof") { |
| specifierTypeKind = "typeof"; |
| } |
| } |
| |
| let isBinding = false; |
| |
| if (this.isContextual(89) && !this.isLookaheadContextual("as")) { |
| const as_ident = this.parseIdentifier(true); |
| |
| if (specifierTypeKind !== null && !tokenIsKeywordOrIdentifier(this.state.type)) { |
| specifier.imported = as_ident; |
| specifier.importKind = specifierTypeKind; |
| specifier.local = cloneIdentifier(as_ident); |
| } else { |
| specifier.imported = firstIdent; |
| specifier.importKind = null; |
| specifier.local = this.parseIdentifier(); |
| } |
| } else { |
| if (specifierTypeKind !== null && tokenIsKeywordOrIdentifier(this.state.type)) { |
| specifier.imported = this.parseIdentifier(true); |
| specifier.importKind = specifierTypeKind; |
| } else { |
| if (importedIsString) { |
| throw this.raise(specifier.start, ErrorMessages.ImportBindingIsString, firstIdent.value); |
| } |
| |
| specifier.imported = firstIdent; |
| specifier.importKind = null; |
| } |
| |
| if (this.eatContextual(89)) { |
| specifier.local = this.parseIdentifier(); |
| } else { |
| isBinding = true; |
| specifier.local = cloneIdentifier(specifier.imported); |
| } |
| } |
| |
| const specifierIsTypeImport = hasTypeImportKind(specifier); |
| |
| if (isInTypeOnlyImport && specifierIsTypeImport) { |
| this.raise(specifier.start, FlowErrors.ImportTypeShorthandOnlyInPureImport); |
| } |
| |
| if (isInTypeOnlyImport || specifierIsTypeImport) { |
| this.checkReservedType(specifier.local.name, specifier.local.start, true); |
| } |
| |
| if (isBinding && !isInTypeOnlyImport && !specifierIsTypeImport) { |
| this.checkReservedWord(specifier.local.name, specifier.start, true, true); |
| } |
| |
| this.checkLVal(specifier.local, "import specifier", BIND_LEXICAL); |
| return this.finishNode(specifier, "ImportSpecifier"); |
| } |
| |
| parseBindingAtom() { |
| switch (this.state.type) { |
| case 74: |
| return this.parseIdentifier(true); |
| |
| default: |
| return super.parseBindingAtom(); |
| } |
| } |
| |
| parseFunctionParams(node, allowModifiers) { |
| const kind = node.kind; |
| |
| if (kind !== "get" && kind !== "set" && this.match(45)) { |
| node.typeParameters = this.flowParseTypeParameterDeclaration(); |
| } |
| |
| super.parseFunctionParams(node, allowModifiers); |
| } |
| |
| parseVarId(decl, kind) { |
| super.parseVarId(decl, kind); |
| |
| if (this.match(14)) { |
| decl.id.typeAnnotation = this.flowParseTypeAnnotation(); |
| this.resetEndLocation(decl.id); |
| } |
| } |
| |
| parseAsyncArrowFromCallExpression(node, call) { |
| if (this.match(14)) { |
| const oldNoAnonFunctionType = this.state.noAnonFunctionType; |
| this.state.noAnonFunctionType = true; |
| node.returnType = this.flowParseTypeAnnotation(); |
| this.state.noAnonFunctionType = oldNoAnonFunctionType; |
| } |
| |
| return super.parseAsyncArrowFromCallExpression(node, call); |
| } |
| |
| shouldParseAsyncArrow() { |
| return this.match(14) || super.shouldParseAsyncArrow(); |
| } |
| |
| parseMaybeAssign(refExpressionErrors, afterLeftParse) { |
| var _jsx; |
| |
| let state = null; |
| let jsx; |
| |
| if (this.hasPlugin("jsx") && (this.match(134) || this.match(45))) { |
| state = this.state.clone(); |
| jsx = this.tryParse(() => super.parseMaybeAssign(refExpressionErrors, afterLeftParse), state); |
| if (!jsx.error) return jsx.node; |
| const { |
| context |
| } = this.state; |
| const currentContext = context[context.length - 1]; |
| |
| if (currentContext === types.j_oTag || currentContext === types.j_expr) { |
| context.pop(); |
| } |
| } |
| |
| if ((_jsx = jsx) != null && _jsx.error || this.match(45)) { |
| var _jsx2, _jsx3; |
| |
| state = state || this.state.clone(); |
| let typeParameters; |
| const arrow = this.tryParse(abort => { |
| var _arrowExpression$extr; |
| |
| typeParameters = this.flowParseTypeParameterDeclaration(); |
| const arrowExpression = this.forwardNoArrowParamsConversionAt(typeParameters, () => { |
| const result = super.parseMaybeAssign(refExpressionErrors, afterLeftParse); |
| this.resetStartLocationFromNode(result, typeParameters); |
| return result; |
| }); |
| if ((_arrowExpression$extr = arrowExpression.extra) != null && _arrowExpression$extr.parenthesized) abort(); |
| const expr = this.maybeUnwrapTypeCastExpression(arrowExpression); |
| if (expr.type !== "ArrowFunctionExpression") abort(); |
| expr.typeParameters = typeParameters; |
| this.resetStartLocationFromNode(expr, typeParameters); |
| return arrowExpression; |
| }, state); |
| let arrowExpression = null; |
| |
| if (arrow.node && this.maybeUnwrapTypeCastExpression(arrow.node).type === "ArrowFunctionExpression") { |
| if (!arrow.error && !arrow.aborted) { |
| if (arrow.node.async) { |
| this.raise(typeParameters.start, FlowErrors.UnexpectedTypeParameterBeforeAsyncArrowFunction); |
| } |
| |
| return arrow.node; |
| } |
| |
| arrowExpression = arrow.node; |
| } |
| |
| if ((_jsx2 = jsx) != null && _jsx2.node) { |
| this.state = jsx.failState; |
| return jsx.node; |
| } |
| |
| if (arrowExpression) { |
| this.state = arrow.failState; |
| return arrowExpression; |
| } |
| |
| if ((_jsx3 = jsx) != null && _jsx3.thrown) throw jsx.error; |
| if (arrow.thrown) throw arrow.error; |
| throw this.raise(typeParameters.start, FlowErrors.UnexpectedTokenAfterTypeParameter); |
| } |
| |
| return super.parseMaybeAssign(refExpressionErrors, afterLeftParse); |
| } |
| |
| parseArrow(node) { |
| if (this.match(14)) { |
| const result = this.tryParse(() => { |
| const oldNoAnonFunctionType = this.state.noAnonFunctionType; |
| this.state.noAnonFunctionType = true; |
| const typeNode = this.startNode(); |
| [typeNode.typeAnnotation, node.predicate] = this.flowParseTypeAndPredicateInitialiser(); |
| this.state.noAnonFunctionType = oldNoAnonFunctionType; |
| if (this.canInsertSemicolon()) this.unexpected(); |
| if (!this.match(19)) this.unexpected(); |
| return typeNode; |
| }); |
| if (result.thrown) return null; |
| if (result.error) this.state = result.failState; |
| node.returnType = result.node.typeAnnotation ? this.finishNode(result.node, "TypeAnnotation") : null; |
| } |
| |
| return super.parseArrow(node); |
| } |
| |
| shouldParseArrow(params) { |
| return this.match(14) || super.shouldParseArrow(params); |
| } |
| |
| setArrowFunctionParameters(node, params) { |
| if (this.state.noArrowParamsConversionAt.indexOf(node.start) !== -1) { |
| node.params = params; |
| } else { |
| super.setArrowFunctionParameters(node, params); |
| } |
| } |
| |
| checkParams(node, allowDuplicates, isArrowFunction) { |
| if (isArrowFunction && this.state.noArrowParamsConversionAt.indexOf(node.start) !== -1) { |
| return; |
| } |
| |
| for (let i = 0; i < node.params.length; i++) { |
| if (this.isThisParam(node.params[i]) && i > 0) { |
| this.raise(node.params[i].start, FlowErrors.ThisParamMustBeFirst); |
| } |
| } |
| |
| return super.checkParams(...arguments); |
| } |
| |
| parseParenAndDistinguishExpression(canBeArrow) { |
| return super.parseParenAndDistinguishExpression(canBeArrow && this.state.noArrowAt.indexOf(this.state.start) === -1); |
| } |
| |
| parseSubscripts(base, startPos, startLoc, noCalls) { |
| if (base.type === "Identifier" && base.name === "async" && this.state.noArrowAt.indexOf(startPos) !== -1) { |
| this.next(); |
| const node = this.startNodeAt(startPos, startLoc); |
| node.callee = base; |
| node.arguments = this.parseCallExpressionArguments(11, false); |
| base = this.finishNode(node, "CallExpression"); |
| } else if (base.type === "Identifier" && base.name === "async" && this.match(45)) { |
| const state = this.state.clone(); |
| const arrow = this.tryParse(abort => this.parseAsyncArrowWithTypeParameters(startPos, startLoc) || abort(), state); |
| if (!arrow.error && !arrow.aborted) return arrow.node; |
| const result = this.tryParse(() => super.parseSubscripts(base, startPos, startLoc, noCalls), state); |
| if (result.node && !result.error) return result.node; |
| |
| if (arrow.node) { |
| this.state = arrow.failState; |
| return arrow.node; |
| } |
| |
| if (result.node) { |
| this.state = result.failState; |
| return result.node; |
| } |
| |
| throw arrow.error || result.error; |
| } |
| |
| return super.parseSubscripts(base, startPos, startLoc, noCalls); |
| } |
| |
| parseSubscript(base, startPos, startLoc, noCalls, subscriptState) { |
| if (this.match(18) && this.isLookaheadToken_lt()) { |
| subscriptState.optionalChainMember = true; |
| |
| if (noCalls) { |
| subscriptState.stop = true; |
| return base; |
| } |
| |
| this.next(); |
| const node = this.startNodeAt(startPos, startLoc); |
| node.callee = base; |
| node.typeArguments = this.flowParseTypeParameterInstantiation(); |
| this.expect(10); |
| node.arguments = this.parseCallExpressionArguments(11, false); |
| node.optional = true; |
| return this.finishCallExpression(node, true); |
| } else if (!noCalls && this.shouldParseTypes() && this.match(45)) { |
| const node = this.startNodeAt(startPos, startLoc); |
| node.callee = base; |
| const result = this.tryParse(() => { |
| node.typeArguments = this.flowParseTypeParameterInstantiationCallOrNew(); |
| this.expect(10); |
| node.arguments = this.parseCallExpressionArguments(11, false); |
| if (subscriptState.optionalChainMember) node.optional = false; |
| return this.finishCallExpression(node, subscriptState.optionalChainMember); |
| }); |
| |
| if (result.node) { |
| if (result.error) this.state = result.failState; |
| return result.node; |
| } |
| } |
| |
| return super.parseSubscript(base, startPos, startLoc, noCalls, subscriptState); |
| } |
| |
| parseNewArguments(node) { |
| let targs = null; |
| |
| if (this.shouldParseTypes() && this.match(45)) { |
| targs = this.tryParse(() => this.flowParseTypeParameterInstantiationCallOrNew()).node; |
| } |
| |
| node.typeArguments = targs; |
| super.parseNewArguments(node); |
| } |
| |
| parseAsyncArrowWithTypeParameters(startPos, startLoc) { |
| const node = this.startNodeAt(startPos, startLoc); |
| this.parseFunctionParams(node); |
| if (!this.parseArrow(node)) return; |
| return this.parseArrowExpression(node, undefined, true); |
| } |
| |
| readToken_mult_modulo(code) { |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (code === 42 && next === 47 && this.state.hasFlowComment) { |
| this.state.hasFlowComment = false; |
| this.state.pos += 2; |
| this.nextToken(); |
| return; |
| } |
| |
| super.readToken_mult_modulo(code); |
| } |
| |
| readToken_pipe_amp(code) { |
| const next = this.input.charCodeAt(this.state.pos + 1); |
| |
| if (code === 124 && next === 125) { |
| this.finishOp(9, 2); |
| return; |
| } |
| |
| super.readToken_pipe_amp(code); |
| } |
| |
| parseTopLevel(file, program) { |
| const fileNode = super.parseTopLevel(file, program); |
| |
| if (this.state.hasFlowComment) { |
| this.raise(this.state.pos, FlowErrors.UnterminatedFlowComment); |
| } |
| |
| return fileNode; |
| } |
| |
| skipBlockComment() { |
| if (this.hasPlugin("flowComments") && this.skipFlowComment()) { |
| if (this.state.hasFlowComment) { |
| this.unexpected(null, FlowErrors.NestedFlowComment); |
| } |
| |
| this.hasFlowCommentCompletion(); |
| this.state.pos += this.skipFlowComment(); |
| this.state.hasFlowComment = true; |
| return; |
| } |
| |
| if (this.state.hasFlowComment) { |
| const end = this.input.indexOf("*-/", this.state.pos += 2); |
| |
| if (end === -1) { |
| throw this.raise(this.state.pos - 2, ErrorMessages.UnterminatedComment); |
| } |
| |
| this.state.pos = end + 3; |
| return; |
| } |
| |
| return super.skipBlockComment(); |
| } |
| |
| skipFlowComment() { |
| const { |
| pos |
| } = this.state; |
| let shiftToFirstNonWhiteSpace = 2; |
| |
| while ([32, 9].includes(this.input.charCodeAt(pos + shiftToFirstNonWhiteSpace))) { |
| shiftToFirstNonWhiteSpace++; |
| } |
| |
| const ch2 = this.input.charCodeAt(shiftToFirstNonWhiteSpace + pos); |
| const ch3 = this.input.charCodeAt(shiftToFirstNonWhiteSpace + pos + 1); |
| |
| if (ch2 === 58 && ch3 === 58) { |
| return shiftToFirstNonWhiteSpace + 2; |
| } |
| |
| if (this.input.slice(shiftToFirstNonWhiteSpace + pos, shiftToFirstNonWhiteSpace + pos + 12) === "flow-include") { |
| return shiftToFirstNonWhiteSpace + 12; |
| } |
| |
| if (ch2 === 58 && ch3 !== 58) { |
| return shiftToFirstNonWhiteSpace; |
| } |
| |
| return false; |
| } |
| |
| hasFlowCommentCompletion() { |
| const end = this.input.indexOf("*/", this.state.pos); |
| |
| if (end === -1) { |
| throw this.raise(this.state.pos, ErrorMessages.UnterminatedComment); |
| } |
| } |
| |
| flowEnumErrorBooleanMemberNotInitialized(pos, { |
| enumName, |
| memberName |
| }) { |
| this.raise(pos, FlowErrors.EnumBooleanMemberNotInitialized, memberName, enumName); |
| } |
| |
| flowEnumErrorInvalidMemberName(pos, { |
| enumName, |
| memberName |
| }) { |
| const suggestion = memberName[0].toUpperCase() + memberName.slice(1); |
| this.raise(pos, FlowErrors.EnumInvalidMemberName, memberName, suggestion, enumName); |
| } |
| |
| flowEnumErrorDuplicateMemberName(pos, { |
| enumName, |
| memberName |
| }) { |
| this.raise(pos, FlowErrors.EnumDuplicateMemberName, memberName, enumName); |
| } |
| |
| flowEnumErrorInconsistentMemberValues(pos, { |
| enumName |
| }) { |
| this.raise(pos, FlowErrors.EnumInconsistentMemberValues, enumName); |
| } |
| |
| flowEnumErrorInvalidExplicitType(pos, { |
| enumName, |
| suppliedType |
| }) { |
| return this.raise(pos, suppliedType === null ? FlowErrors.EnumInvalidExplicitTypeUnknownSupplied : FlowErrors.EnumInvalidExplicitType, enumName, suppliedType); |
| } |
| |
| flowEnumErrorInvalidMemberInitializer(pos, { |
| enumName, |
| explicitType, |
| memberName |
| }) { |
| let message = null; |
| |
| switch (explicitType) { |
| case "boolean": |
| case "number": |
| case "string": |
| message = FlowErrors.EnumInvalidMemberInitializerPrimaryType; |
| break; |
| |
| case "symbol": |
| message = FlowErrors.EnumInvalidMemberInitializerSymbolType; |
| break; |
| |
| default: |
| message = FlowErrors.EnumInvalidMemberInitializerUnknownType; |
| } |
| |
| return this.raise(pos, message, enumName, memberName, explicitType); |
| } |
| |
| flowEnumErrorNumberMemberNotInitialized(pos, { |
| enumName, |
| memberName |
| }) { |
| this.raise(pos, FlowErrors.EnumNumberMemberNotInitialized, enumName, memberName); |
| } |
| |
| flowEnumErrorStringMemberInconsistentlyInitailized(pos, { |
| enumName |
| }) { |
| this.raise(pos, FlowErrors.EnumStringMemberInconsistentlyInitailized, enumName); |
| } |
| |
| flowEnumMemberInit() { |
| const startPos = this.state.start; |
| |
| const endOfInit = () => this.match(12) || this.match(8); |
| |
| switch (this.state.type) { |
| case 126: |
| { |
| const literal = this.parseNumericLiteral(this.state.value); |
| |
| if (endOfInit()) { |
| return { |
| type: "number", |
| pos: literal.start, |
| value: literal |
| }; |
| } |
| |
| return { |
| type: "invalid", |
| pos: startPos |
| }; |
| } |
| |
| case 125: |
| { |
| const literal = this.parseStringLiteral(this.state.value); |
| |
| if (endOfInit()) { |
| return { |
| type: "string", |
| pos: literal.start, |
| value: literal |
| }; |
| } |
| |
| return { |
| type: "invalid", |
| pos: startPos |
| }; |
| } |
| |
| case 81: |
| case 82: |
| { |
| const literal = this.parseBooleanLiteral(this.match(81)); |
| |
| if (endOfInit()) { |
| return { |
| type: "boolean", |
| pos: literal.start, |
| value: literal |
| }; |
| } |
| |
| return { |
| type: "invalid", |
| pos: startPos |
| }; |
| } |
| |
| default: |
| return { |
| type: "invalid", |
| pos: startPos |
| }; |
| } |
| } |
| |
| flowEnumMemberRaw() { |
| const pos = this.state.start; |
| const id = this.parseIdentifier(true); |
| const init = this.eat(29) ? this.flowEnumMemberInit() : { |
| type: "none", |
| pos |
| }; |
| return { |
| id, |
| init |
| }; |
| } |
| |
| flowEnumCheckExplicitTypeMismatch(pos, context, expectedType) { |
| const { |
| explicitType |
| } = context; |
| |
| if (explicitType === null) { |
| return; |
| } |
| |
| if (explicitType !== expectedType) { |
| this.flowEnumErrorInvalidMemberInitializer(pos, context); |
| } |
| } |
| |
| flowEnumMembers({ |
| enumName, |
| explicitType |
| }) { |
| const seenNames = new Set(); |
| const members = { |
| booleanMembers: [], |
| numberMembers: [], |
| stringMembers: [], |
| defaultedMembers: [] |
| }; |
| let hasUnknownMembers = false; |
| |
| while (!this.match(8)) { |
| if (this.eat(21)) { |
| hasUnknownMembers = true; |
| break; |
| } |
| |
| const memberNode = this.startNode(); |
| const { |
| id, |
| init |
| } = this.flowEnumMemberRaw(); |
| const memberName = id.name; |
| |
| if (memberName === "") { |
| continue; |
| } |
| |
| if (/^[a-z]/.test(memberName)) { |
| this.flowEnumErrorInvalidMemberName(id.start, { |
| enumName, |
| memberName |
| }); |
| } |
| |
| if (seenNames.has(memberName)) { |
| this.flowEnumErrorDuplicateMemberName(id.start, { |
| enumName, |
| memberName |
| }); |
| } |
| |
| seenNames.add(memberName); |
| const context = { |
| enumName, |
| explicitType, |
| memberName |
| }; |
| memberNode.id = id; |
| |
| switch (init.type) { |
| case "boolean": |
| { |
| this.flowEnumCheckExplicitTypeMismatch(init.pos, context, "boolean"); |
| memberNode.init = init.value; |
| members.booleanMembers.push(this.finishNode(memberNode, "EnumBooleanMember")); |
| break; |
| } |
| |
| case "number": |
| { |
| this.flowEnumCheckExplicitTypeMismatch(init.pos, context, "number"); |
| memberNode.init = init.value; |
| members.numberMembers.push(this.finishNode(memberNode, "EnumNumberMember")); |
| break; |
| } |
| |
| case "string": |
| { |
| this.flowEnumCheckExplicitTypeMismatch(init.pos, context, "string"); |
| memberNode.init = init.value; |
| members.stringMembers.push(this.finishNode(memberNode, "EnumStringMember")); |
| break; |
| } |
| |
| case "invalid": |
| { |
| throw this.flowEnumErrorInvalidMemberInitializer(init.pos, context); |
| } |
| |
| case "none": |
| { |
| switch (explicitType) { |
| case "boolean": |
| this.flowEnumErrorBooleanMemberNotInitialized(init.pos, context); |
| break; |
| |
| case "number": |
| this.flowEnumErrorNumberMemberNotInitialized(init.pos, context); |
| break; |
| |
| default: |
| members.defaultedMembers.push(this.finishNode(memberNode, "EnumDefaultedMember")); |
| } |
| } |
| } |
| |
| if (!this.match(8)) { |
| this.expect(12); |
| } |
| } |
| |
| return { |
| members, |
| hasUnknownMembers |
| }; |
| } |
| |
| flowEnumStringMembers(initializedMembers, defaultedMembers, { |
| enumName |
| }) { |
| if (initializedMembers.length === 0) { |
| return defaultedMembers; |
| } else if (defaultedMembers.length === 0) { |
| return initializedMembers; |
| } else if (defaultedMembers.length > initializedMembers.length) { |
| for (const member of initializedMembers) { |
| this.flowEnumErrorStringMemberInconsistentlyInitailized(member.start, { |
| enumName |
| }); |
| } |
| |
| return defaultedMembers; |
| } else { |
| for (const member of defaultedMembers) { |
| this.flowEnumErrorStringMemberInconsistentlyInitailized(member.start, { |
| enumName |
| }); |
| } |
| |
| return initializedMembers; |
| } |
| } |
| |
| flowEnumParseExplicitType({ |
| enumName |
| }) { |
| if (this.eatContextual(97)) { |
| if (!tokenIsIdentifier(this.state.type)) { |
| throw this.flowEnumErrorInvalidExplicitType(this.state.start, { |
| enumName, |
| suppliedType: null |
| }); |
| } |
| |
| const { |
| value |
| } = this.state; |
| this.next(); |
| |
| if (value !== "boolean" && value !== "number" && value !== "string" && value !== "symbol") { |
| this.flowEnumErrorInvalidExplicitType(this.state.start, { |
| enumName, |
| suppliedType: value |
| }); |
| } |
| |
| return value; |
| } |
| |
| return null; |
| } |
| |
| flowEnumBody(node, { |
| enumName, |
| nameLoc |
| }) { |
| const explicitType = this.flowEnumParseExplicitType({ |
| enumName |
| }); |
| this.expect(5); |
| const { |
| members, |
| hasUnknownMembers |
| } = this.flowEnumMembers({ |
| enumName, |
| explicitType |
| }); |
| node.hasUnknownMembers = hasUnknownMembers; |
| |
| switch (explicitType) { |
| case "boolean": |
| node.explicitType = true; |
| node.members = members.booleanMembers; |
| this.expect(8); |
| return this.finishNode(node, "EnumBooleanBody"); |
| |
| case "number": |
| node.explicitType = true; |
| node.members = members.numberMembers; |
| this.expect(8); |
| return this.finishNode(node, "EnumNumberBody"); |
| |
| case "string": |
| node.explicitType = true; |
| node.members = this.flowEnumStringMembers(members.stringMembers, members.defaultedMembers, { |
| enumName |
| }); |
| this.expect(8); |
| return this.finishNode(node, "EnumStringBody"); |
| |
| case "symbol": |
| node.members = members.defaultedMembers; |
| this.expect(8); |
| return this.finishNode(node, "EnumSymbolBody"); |
| |
| default: |
| { |
| const empty = () => { |
| node.members = []; |
| this.expect(8); |
| return this.finishNode(node, "EnumStringBody"); |
| }; |
| |
| node.explicitType = false; |
| const boolsLen = members.booleanMembers.length; |
| const numsLen = members.numberMembers.length; |
| const strsLen = members.stringMembers.length; |
| const defaultedLen = members.defaultedMembers.length; |
| |
| if (!boolsLen && !numsLen && !strsLen && !defaultedLen) { |
| return empty(); |
| } else if (!boolsLen && !numsLen) { |
| node.members = this.flowEnumStringMembers(members.stringMembers, members.defaultedMembers, { |
| enumName |
| }); |
| this.expect(8); |
| return this.finishNode(node, "EnumStringBody"); |
| } else if (!numsLen && !strsLen && boolsLen >= defaultedLen) { |
| for (const member of members.defaultedMembers) { |
| this.flowEnumErrorBooleanMemberNotInitialized(member.start, { |
| enumName, |
| memberName: member.id.name |
| }); |
| } |
| |
| node.members = members.booleanMembers; |
| this.expect(8); |
| return this.finishNode(node, "EnumBooleanBody"); |
| } else if (!boolsLen && !strsLen && numsLen >= defaultedLen) { |
| for (const member of members.defaultedMembers) { |
| this.flowEnumErrorNumberMemberNotInitialized(member.start, { |
| enumName, |
| memberName: member.id.name |
| }); |
| } |
| |
| node.members = members.numberMembers; |
| this.expect(8); |
| return this.finishNode(node, "EnumNumberBody"); |
| } else { |
| this.flowEnumErrorInconsistentMemberValues(nameLoc, { |
| enumName |
| }); |
| return empty(); |
| } |
| } |
| } |
| } |
| |
| flowParseEnumDeclaration(node) { |
| const id = this.parseIdentifier(); |
| node.id = id; |
| node.body = this.flowEnumBody(this.startNode(), { |
| enumName: id.name, |
| nameLoc: id.start |
| }); |
| return this.finishNode(node, "EnumDeclaration"); |
| } |
| |
| isLookaheadToken_lt() { |
| const next = this.nextTokenStart(); |
| |
| if (this.input.charCodeAt(next) === 60) { |
| const afterNext = this.input.charCodeAt(next + 1); |
| return afterNext !== 60 && afterNext !== 61; |
| } |
| |
| return false; |
| } |
| |
| maybeUnwrapTypeCastExpression(node) { |
| return node.type === "TypeCastExpression" ? node.expression : node; |
| } |
| |
| }); |
| |
| const entities = { |
| quot: "\u0022", |
| amp: "&", |
| apos: "\u0027", |
| lt: "<", |
| gt: ">", |
| nbsp: "\u00A0", |
| iexcl: "\u00A1", |
| cent: "\u00A2", |
| pound: "\u00A3", |
| curren: "\u00A4", |
| yen: "\u00A5", |
| brvbar: "\u00A6", |
| sect: "\u00A7", |
| uml: "\u00A8", |
| copy: "\u00A9", |
| ordf: "\u00AA", |
| laquo: "\u00AB", |
| not: "\u00AC", |
| shy: "\u00AD", |
| reg: "\u00AE", |
| macr: "\u00AF", |
| deg: "\u00B0", |
| plusmn: "\u00B1", |
| sup2: "\u00B2", |
| sup3: "\u00B3", |
| acute: "\u00B4", |
| micro: "\u00B5", |
| para: "\u00B6", |
| middot: "\u00B7", |
| cedil: "\u00B8", |
| sup1: "\u00B9", |
| ordm: "\u00BA", |
| raquo: "\u00BB", |
| frac14: "\u00BC", |
| frac12: "\u00BD", |
| frac34: "\u00BE", |
| iquest: "\u00BF", |
| Agrave: "\u00C0", |
| Aacute: "\u00C1", |
| Acirc: "\u00C2", |
| Atilde: "\u00C3", |
| Auml: "\u00C4", |
| Aring: "\u00C5", |
| AElig: "\u00C6", |
| Ccedil: "\u00C7", |
| Egrave: "\u00C8", |
| Eacute: "\u00C9", |
| Ecirc: "\u00CA", |
| Euml: "\u00CB", |
| Igrave: "\u00CC", |
| Iacute: "\u00CD", |
| Icirc: "\u00CE", |
| Iuml: "\u00CF", |
| ETH: "\u00D0", |
| Ntilde: "\u00D1", |
| Ograve: "\u00D2", |
| Oacute: "\u00D3", |
| Ocirc: "\u00D4", |
| Otilde: "\u00D5", |
| Ouml: "\u00D6", |
| times: "\u00D7", |
| Oslash: "\u00D8", |
| Ugrave: "\u00D9", |
| Uacute: "\u00DA", |
| Ucirc: "\u00DB", |
| Uuml: "\u00DC", |
| Yacute: "\u00DD", |
| THORN: "\u00DE", |
| szlig: "\u00DF", |
| agrave: "\u00E0", |
| aacute: "\u00E1", |
| acirc: "\u00E2", |
| atilde: "\u00E3", |
| auml: "\u00E4", |
| aring: "\u00E5", |
| aelig: "\u00E6", |
| ccedil: "\u00E7", |
| egrave: "\u00E8", |
| eacute: "\u00E9", |
| ecirc: "\u00EA", |
| euml: "\u00EB", |
| igrave: "\u00EC", |
| iacute: "\u00ED", |
| icirc: "\u00EE", |
| iuml: "\u00EF", |
| eth: "\u00F0", |
| ntilde: "\u00F1", |
| ograve: "\u00F2", |
| oacute: "\u00F3", |
| ocirc: "\u00F4", |
| otilde: "\u00F5", |
| ouml: "\u00F6", |
| divide: "\u00F7", |
| oslash: "\u00F8", |
| ugrave: "\u00F9", |
| uacute: "\u00FA", |
| ucirc: "\u00FB", |
| uuml: "\u00FC", |
| yacute: "\u00FD", |
| thorn: "\u00FE", |
| yuml: "\u00FF", |
| OElig: "\u0152", |
| oelig: "\u0153", |
| Scaron: "\u0160", |
| scaron: "\u0161", |
| Yuml: "\u0178", |
| fnof: "\u0192", |
| circ: "\u02C6", |
| tilde: "\u02DC", |
| Alpha: "\u0391", |
| Beta: "\u0392", |
| Gamma: "\u0393", |
| Delta: "\u0394", |
| Epsilon: "\u0395", |
| Zeta: "\u0396", |
| Eta: "\u0397", |
| Theta: "\u0398", |
| Iota: "\u0399", |
| Kappa: "\u039A", |
| Lambda: "\u039B", |
| Mu: "\u039C", |
| Nu: "\u039D", |
| Xi: "\u039E", |
| Omicron: "\u039F", |
| Pi: "\u03A0", |
| Rho: "\u03A1", |
| Sigma: "\u03A3", |
| Tau: "\u03A4", |
| Upsilon: "\u03A5", |
| Phi: "\u03A6", |
| Chi: "\u03A7", |
| Psi: "\u03A8", |
| Omega: "\u03A9", |
| alpha: "\u03B1", |
| beta: "\u03B2", |
| gamma: "\u03B3", |
| delta: "\u03B4", |
| epsilon: "\u03B5", |
| zeta: "\u03B6", |
| eta: "\u03B7", |
| theta: "\u03B8", |
| iota: "\u03B9", |
| kappa: "\u03BA", |
| lambda: "\u03BB", |
| mu: "\u03BC", |
| nu: "\u03BD", |
| xi: "\u03BE", |
| omicron: "\u03BF", |
| pi: "\u03C0", |
| rho: "\u03C1", |
| sigmaf: "\u03C2", |
| sigma: "\u03C3", |
| tau: "\u03C4", |
| upsilon: "\u03C5", |
| phi: "\u03C6", |
| chi: "\u03C7", |
| psi: "\u03C8", |
| omega: "\u03C9", |
| thetasym: "\u03D1", |
| upsih: "\u03D2", |
| piv: "\u03D6", |
| ensp: "\u2002", |
| emsp: "\u2003", |
| thinsp: "\u2009", |
| zwnj: "\u200C", |
| zwj: "\u200D", |
| lrm: "\u200E", |
| rlm: "\u200F", |
| ndash: "\u2013", |
| mdash: "\u2014", |
| lsquo: "\u2018", |
| rsquo: "\u2019", |
| sbquo: "\u201A", |
| ldquo: "\u201C", |
| rdquo: "\u201D", |
| bdquo: "\u201E", |
| dagger: "\u2020", |
| Dagger: "\u2021", |
| bull: "\u2022", |
| hellip: "\u2026", |
| permil: "\u2030", |
| prime: "\u2032", |
| Prime: "\u2033", |
| lsaquo: "\u2039", |
| rsaquo: "\u203A", |
| oline: "\u203E", |
| frasl: "\u2044", |
| euro: "\u20AC", |
| image: "\u2111", |
| weierp: "\u2118", |
| real: "\u211C", |
| trade: "\u2122", |
| alefsym: "\u2135", |
| larr: "\u2190", |
| uarr: "\u2191", |
| rarr: "\u2192", |
| darr: "\u2193", |
| harr: "\u2194", |
| crarr: "\u21B5", |
| lArr: "\u21D0", |
| uArr: "\u21D1", |
| rArr: "\u21D2", |
| dArr: "\u21D3", |
| hArr: "\u21D4", |
| forall: "\u2200", |
| part: "\u2202", |
| exist: "\u2203", |
| empty: "\u2205", |
| nabla: "\u2207", |
| isin: "\u2208", |
| notin: "\u2209", |
| ni: "\u220B", |
| prod: "\u220F", |
| sum: "\u2211", |
| minus: "\u2212", |
| lowast: "\u2217", |
| radic: "\u221A", |
| prop: "\u221D", |
| infin: "\u221E", |
| ang: "\u2220", |
| and: "\u2227", |
| or: "\u2228", |
| cap: "\u2229", |
| cup: "\u222A", |
| int: "\u222B", |
| there4: "\u2234", |
| sim: "\u223C", |
| cong: "\u2245", |
| asymp: "\u2248", |
| ne: "\u2260", |
| equiv: "\u2261", |
| le: "\u2264", |
| ge: "\u2265", |
| sub: "\u2282", |
| sup: "\u2283", |
| nsub: "\u2284", |
| sube: "\u2286", |
| supe: "\u2287", |
| oplus: "\u2295", |
| otimes: "\u2297", |
| perp: "\u22A5", |
| sdot: "\u22C5", |
| lceil: "\u2308", |
| rceil: "\u2309", |
| lfloor: "\u230A", |
| rfloor: "\u230B", |
| lang: "\u2329", |
| rang: "\u232A", |
| loz: "\u25CA", |
| spades: "\u2660", |
| clubs: "\u2663", |
| hearts: "\u2665", |
| diams: "\u2666" |
| }; |
| |
| const HEX_NUMBER = /^[\da-fA-F]+$/; |
| const DECIMAL_NUMBER = /^\d+$/; |
| const JsxErrors = makeErrorTemplates({ |
| AttributeIsEmpty: "JSX attributes must only be assigned a non-empty expression.", |
| MissingClosingTagElement: "Expected corresponding JSX closing tag for <%0>.", |
| MissingClosingTagFragment: "Expected corresponding JSX closing tag for <>.", |
| UnexpectedSequenceExpression: "Sequence expressions cannot be directly nested inside JSX. Did you mean to wrap it in parentheses (...)?", |
| UnsupportedJsxValue: "JSX value should be either an expression or a quoted JSX text.", |
| UnterminatedJsxContent: "Unterminated JSX contents.", |
| UnwrappedAdjacentJSXElements: "Adjacent JSX elements must be wrapped in an enclosing tag. Did you want a JSX fragment <>...</>?" |
| }, ErrorCodes.SyntaxError, "jsx"); |
| |
| function isFragment(object) { |
| return object ? object.type === "JSXOpeningFragment" || object.type === "JSXClosingFragment" : false; |
| } |
| |
| function getQualifiedJSXName(object) { |
| if (object.type === "JSXIdentifier") { |
| return object.name; |
| } |
| |
| if (object.type === "JSXNamespacedName") { |
| return object.namespace.name + ":" + object.name.name; |
| } |
| |
| if (object.type === "JSXMemberExpression") { |
| return getQualifiedJSXName(object.object) + "." + getQualifiedJSXName(object.property); |
| } |
| |
| throw new Error("Node had unexpected type: " + object.type); |
| } |
| |
| var jsx = (superClass => class extends superClass { |
| jsxReadToken() { |
| let out = ""; |
| let chunkStart = this.state.pos; |
| |
| for (;;) { |
| if (this.state.pos >= this.length) { |
| throw this.raise(this.state.start, JsxErrors.UnterminatedJsxContent); |
| } |
| |
| const ch = this.input.charCodeAt(this.state.pos); |
| |
| switch (ch) { |
| case 60: |
| case 123: |
| if (this.state.pos === this.state.start) { |
| if (ch === 60 && this.state.canStartJSXElement) { |
| ++this.state.pos; |
| return this.finishToken(134); |
| } |
| |
| return super.getTokenFromCode(ch); |
| } |
| |
| out += this.input.slice(chunkStart, this.state.pos); |
| return this.finishToken(133, out); |
| |
| case 38: |
| out += this.input.slice(chunkStart, this.state.pos); |
| out += this.jsxReadEntity(); |
| chunkStart = this.state.pos; |
| break; |
| |
| case 62: |
| case 125: |
| |
| default: |
| if (isNewLine(ch)) { |
| out += this.input.slice(chunkStart, this.state.pos); |
| out += this.jsxReadNewLine(true); |
| chunkStart = this.state.pos; |
| } else { |
| ++this.state.pos; |
| } |
| |
| } |
| } |
| } |
| |
| jsxReadNewLine(normalizeCRLF) { |
| const ch = this.input.charCodeAt(this.state.pos); |
| let out; |
| ++this.state.pos; |
| |
| if (ch === 13 && this.input.charCodeAt(this.state.pos) === 10) { |
| ++this.state.pos; |
| out = normalizeCRLF ? "\n" : "\r\n"; |
| } else { |
| out = String.fromCharCode(ch); |
| } |
| |
| ++this.state.curLine; |
| this.state.lineStart = this.state.pos; |
| return out; |
| } |
| |
| jsxReadString(quote) { |
| let out = ""; |
| let chunkStart = ++this.state.pos; |
| |
| for (;;) { |
| if (this.state.pos >= this.length) { |
| throw this.raise(this.state.start, ErrorMessages.UnterminatedString); |
| } |
| |
| const ch = this.input.charCodeAt(this.state.pos); |
| if (ch === quote) break; |
| |
| if (ch === 38) { |
| out += this.input.slice(chunkStart, this.state.pos); |
| out += this.jsxReadEntity(); |
| chunkStart = this.state.pos; |
| } else if (isNewLine(ch)) { |
| out += this.input.slice(chunkStart, this.state.pos); |
| out += this.jsxReadNewLine(false); |
| chunkStart = this.state.pos; |
| } else { |
| ++this.state.pos; |
| } |
| } |
| |
| out += this.input.slice(chunkStart, this.state.pos++); |
| return this.finishToken(125, out); |
| } |
| |
| jsxReadEntity() { |
| let str = ""; |
| let count = 0; |
| let entity; |
| let ch = this.input[this.state.pos]; |
| const startPos = ++this.state.pos; |
| |
| while (this.state.pos < this.length && count++ < 10) { |
| ch = this.input[this.state.pos++]; |
| |
| if (ch === ";") { |
| if (str[0] === "#") { |
| if (str[1] === "x") { |
| str = str.substr(2); |
| |
| if (HEX_NUMBER.test(str)) { |
| entity = String.fromCodePoint(parseInt(str, 16)); |
| } |
| } else { |
| str = str.substr(1); |
| |
| if (DECIMAL_NUMBER.test(str)) { |
| entity = String.fromCodePoint(parseInt(str, 10)); |
| } |
| } |
| } else { |
| entity = entities[str]; |
| } |
| |
| break; |
| } |
| |
| str += ch; |
| } |
| |
| if (!entity) { |
| this.state.pos = startPos; |
| return "&"; |
| } |
| |
| return entity; |
| } |
| |
| jsxReadWord() { |
| let ch; |
| const start = this.state.pos; |
| |
| do { |
| ch = this.input.charCodeAt(++this.state.pos); |
| } while (isIdentifierChar(ch) || ch === 45); |
| |
| return this.finishToken(132, this.input.slice(start, this.state.pos)); |
| } |
| |
| jsxParseIdentifier() { |
| const node = this.startNode(); |
| |
| if (this.match(132)) { |
| node.name = this.state.value; |
| } else if (tokenIsKeyword(this.state.type)) { |
| node.name = tokenLabelName(this.state.type); |
| } else { |
| this.unexpected(); |
| } |
| |
| this.next(); |
| return this.finishNode(node, "JSXIdentifier"); |
| } |
| |
| jsxParseNamespacedName() { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| const name = this.jsxParseIdentifier(); |
| if (!this.eat(14)) return name; |
| const node = this.startNodeAt(startPos, startLoc); |
| node.namespace = name; |
| node.name = this.jsxParseIdentifier(); |
| return this.finishNode(node, "JSXNamespacedName"); |
| } |
| |
| jsxParseElementName() { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| let node = this.jsxParseNamespacedName(); |
| |
| if (node.type === "JSXNamespacedName") { |
| return node; |
| } |
| |
| while (this.eat(16)) { |
| const newNode = this.startNodeAt(startPos, startLoc); |
| newNode.object = node; |
| newNode.property = this.jsxParseIdentifier(); |
| node = this.finishNode(newNode, "JSXMemberExpression"); |
| } |
| |
| return node; |
| } |
| |
| jsxParseAttributeValue() { |
| let node; |
| |
| switch (this.state.type) { |
| case 5: |
| node = this.startNode(); |
| this.setContext(types.brace); |
| this.next(); |
| node = this.jsxParseExpressionContainer(node, types.j_oTag); |
| |
| if (node.expression.type === "JSXEmptyExpression") { |
| this.raise(node.start, JsxErrors.AttributeIsEmpty); |
| } |
| |
| return node; |
| |
| case 134: |
| case 125: |
| return this.parseExprAtom(); |
| |
| default: |
| throw this.raise(this.state.start, JsxErrors.UnsupportedJsxValue); |
| } |
| } |
| |
| jsxParseEmptyExpression() { |
| const node = this.startNodeAt(this.state.lastTokEnd, this.state.lastTokEndLoc); |
| return this.finishNodeAt(node, "JSXEmptyExpression", this.state.start, this.state.startLoc); |
| } |
| |
| jsxParseSpreadChild(node) { |
| this.next(); |
| node.expression = this.parseExpression(); |
| this.setContext(types.j_oTag); |
| this.expect(8); |
| return this.finishNode(node, "JSXSpreadChild"); |
| } |
| |
| jsxParseExpressionContainer(node, previousContext) { |
| if (this.match(8)) { |
| node.expression = this.jsxParseEmptyExpression(); |
| } else { |
| const expression = this.parseExpression(); |
| node.expression = expression; |
| } |
| |
| this.setContext(previousContext); |
| this.expect(8); |
| return this.finishNode(node, "JSXExpressionContainer"); |
| } |
| |
| jsxParseAttribute() { |
| const node = this.startNode(); |
| |
| if (this.match(5)) { |
| this.setContext(types.brace); |
| this.next(); |
| this.expect(21); |
| node.argument = this.parseMaybeAssignAllowIn(); |
| this.setContext(types.j_oTag); |
| this.expect(8); |
| return this.finishNode(node, "JSXSpreadAttribute"); |
| } |
| |
| node.name = this.jsxParseNamespacedName(); |
| node.value = this.eat(29) ? this.jsxParseAttributeValue() : null; |
| return this.finishNode(node, "JSXAttribute"); |
| } |
| |
| jsxParseOpeningElementAt(startPos, startLoc) { |
| const node = this.startNodeAt(startPos, startLoc); |
| |
| if (this.match(135)) { |
| this.expect(135); |
| return this.finishNode(node, "JSXOpeningFragment"); |
| } |
| |
| node.name = this.jsxParseElementName(); |
| return this.jsxParseOpeningElementAfterName(node); |
| } |
| |
| jsxParseOpeningElementAfterName(node) { |
| const attributes = []; |
| |
| while (!this.match(52) && !this.match(135)) { |
| attributes.push(this.jsxParseAttribute()); |
| } |
| |
| node.attributes = attributes; |
| node.selfClosing = this.eat(52); |
| this.expect(135); |
| return this.finishNode(node, "JSXOpeningElement"); |
| } |
| |
| jsxParseClosingElementAt(startPos, startLoc) { |
| const node = this.startNodeAt(startPos, startLoc); |
| |
| if (this.match(135)) { |
| this.expect(135); |
| return this.finishNode(node, "JSXClosingFragment"); |
| } |
| |
| node.name = this.jsxParseElementName(); |
| this.expect(135); |
| return this.finishNode(node, "JSXClosingElement"); |
| } |
| |
| jsxParseElementAt(startPos, startLoc) { |
| const node = this.startNodeAt(startPos, startLoc); |
| const children = []; |
| const openingElement = this.jsxParseOpeningElementAt(startPos, startLoc); |
| let closingElement = null; |
| |
| if (!openingElement.selfClosing) { |
| contents: for (;;) { |
| switch (this.state.type) { |
| case 134: |
| startPos = this.state.start; |
| startLoc = this.state.startLoc; |
| this.next(); |
| |
| if (this.eat(52)) { |
| closingElement = this.jsxParseClosingElementAt(startPos, startLoc); |
| break contents; |
| } |
| |
| children.push(this.jsxParseElementAt(startPos, startLoc)); |
| break; |
| |
| case 133: |
| children.push(this.parseExprAtom()); |
| break; |
| |
| case 5: |
| { |
| const node = this.startNode(); |
| this.setContext(types.brace); |
| this.next(); |
| |
| if (this.match(21)) { |
| children.push(this.jsxParseSpreadChild(node)); |
| } else { |
| children.push(this.jsxParseExpressionContainer(node, types.j_expr)); |
| } |
| |
| break; |
| } |
| |
| default: |
| throw this.unexpected(); |
| } |
| } |
| |
| if (isFragment(openingElement) && !isFragment(closingElement)) { |
| this.raise(closingElement.start, JsxErrors.MissingClosingTagFragment); |
| } else if (!isFragment(openingElement) && isFragment(closingElement)) { |
| this.raise(closingElement.start, JsxErrors.MissingClosingTagElement, getQualifiedJSXName(openingElement.name)); |
| } else if (!isFragment(openingElement) && !isFragment(closingElement)) { |
| if (getQualifiedJSXName(closingElement.name) !== getQualifiedJSXName(openingElement.name)) { |
| this.raise(closingElement.start, JsxErrors.MissingClosingTagElement, getQualifiedJSXName(openingElement.name)); |
| } |
| } |
| } |
| |
| if (isFragment(openingElement)) { |
| node.openingFragment = openingElement; |
| node.closingFragment = closingElement; |
| } else { |
| node.openingElement = openingElement; |
| node.closingElement = closingElement; |
| } |
| |
| node.children = children; |
| |
| if (this.match(45)) { |
| throw this.raise(this.state.start, JsxErrors.UnwrappedAdjacentJSXElements); |
| } |
| |
| return isFragment(openingElement) ? this.finishNode(node, "JSXFragment") : this.finishNode(node, "JSXElement"); |
| } |
| |
| jsxParseElement() { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| this.next(); |
| return this.jsxParseElementAt(startPos, startLoc); |
| } |
| |
| setContext(newContext) { |
| const { |
| context |
| } = this.state; |
| context[context.length - 1] = newContext; |
| } |
| |
| parseExprAtom(refExpressionErrors) { |
| if (this.match(133)) { |
| return this.parseLiteral(this.state.value, "JSXText"); |
| } else if (this.match(134)) { |
| return this.jsxParseElement(); |
| } else if (this.match(45) && this.input.charCodeAt(this.state.pos) !== 33) { |
| this.replaceToken(134); |
| return this.jsxParseElement(); |
| } else { |
| return super.parseExprAtom(refExpressionErrors); |
| } |
| } |
| |
| skipSpace() { |
| const curContext = this.curContext(); |
| if (!curContext.preserveSpace) super.skipSpace(); |
| } |
| |
| getTokenFromCode(code) { |
| const context = this.curContext(); |
| |
| if (context === types.j_expr) { |
| return this.jsxReadToken(); |
| } |
| |
| if (context === types.j_oTag || context === types.j_cTag) { |
| if (isIdentifierStart(code)) { |
| return this.jsxReadWord(); |
| } |
| |
| if (code === 62) { |
| ++this.state.pos; |
| return this.finishToken(135); |
| } |
| |
| if ((code === 34 || code === 39) && context === types.j_oTag) { |
| return this.jsxReadString(code); |
| } |
| } |
| |
| if (code === 60 && this.state.canStartJSXElement && this.input.charCodeAt(this.state.pos + 1) !== 33) { |
| ++this.state.pos; |
| return this.finishToken(134); |
| } |
| |
| return super.getTokenFromCode(code); |
| } |
| |
| updateContext(prevType) { |
| const { |
| context, |
| type |
| } = this.state; |
| |
| if (type === 52 && prevType === 134) { |
| context.splice(-2, 2, types.j_cTag); |
| this.state.canStartJSXElement = false; |
| } else if (type === 134) { |
| context.push(types.j_oTag); |
| } else if (type === 135) { |
| const out = context[context.length - 1]; |
| |
| if (out === types.j_oTag && prevType === 52 || out === types.j_cTag) { |
| context.pop(); |
| this.state.canStartJSXElement = context[context.length - 1] === types.j_expr; |
| } else { |
| this.setContext(types.j_expr); |
| this.state.canStartJSXElement = true; |
| } |
| } else { |
| this.state.canStartJSXElement = tokenComesBeforeExpression(type); |
| } |
| } |
| |
| }); |
| |
| class TypeScriptScope extends Scope { |
| constructor(...args) { |
| super(...args); |
| this.types = new Set(); |
| this.enums = new Set(); |
| this.constEnums = new Set(); |
| this.classes = new Set(); |
| this.exportOnlyBindings = new Set(); |
| } |
| |
| } |
| |
| class TypeScriptScopeHandler extends ScopeHandler { |
| createScope(flags) { |
| return new TypeScriptScope(flags); |
| } |
| |
| declareName(name, bindingType, pos) { |
| const scope = this.currentScope(); |
| |
| if (bindingType & BIND_FLAGS_TS_EXPORT_ONLY) { |
| this.maybeExportDefined(scope, name); |
| scope.exportOnlyBindings.add(name); |
| return; |
| } |
| |
| super.declareName(...arguments); |
| |
| if (bindingType & BIND_KIND_TYPE) { |
| if (!(bindingType & BIND_KIND_VALUE)) { |
| this.checkRedeclarationInScope(scope, name, bindingType, pos); |
| this.maybeExportDefined(scope, name); |
| } |
| |
| scope.types.add(name); |
| } |
| |
| if (bindingType & BIND_FLAGS_TS_ENUM) scope.enums.add(name); |
| if (bindingType & BIND_FLAGS_TS_CONST_ENUM) scope.constEnums.add(name); |
| if (bindingType & BIND_FLAGS_CLASS) scope.classes.add(name); |
| } |
| |
| isRedeclaredInScope(scope, name, bindingType) { |
| if (scope.enums.has(name)) { |
| if (bindingType & BIND_FLAGS_TS_ENUM) { |
| const isConst = !!(bindingType & BIND_FLAGS_TS_CONST_ENUM); |
| const wasConst = scope.constEnums.has(name); |
| return isConst !== wasConst; |
| } |
| |
| return true; |
| } |
| |
| if (bindingType & BIND_FLAGS_CLASS && scope.classes.has(name)) { |
| if (scope.lexical.has(name)) { |
| return !!(bindingType & BIND_KIND_VALUE); |
| } else { |
| return false; |
| } |
| } |
| |
| if (bindingType & BIND_KIND_TYPE && scope.types.has(name)) { |
| return true; |
| } |
| |
| return super.isRedeclaredInScope(...arguments); |
| } |
| |
| checkLocalExport(id) { |
| const topLevelScope = this.scopeStack[0]; |
| const { |
| name |
| } = id; |
| |
| if (!topLevelScope.types.has(name) && !topLevelScope.exportOnlyBindings.has(name)) { |
| super.checkLocalExport(id); |
| } |
| } |
| |
| } |
| |
| function nonNull(x) { |
| if (x == null) { |
| throw new Error(`Unexpected ${x} value.`); |
| } |
| |
| return x; |
| } |
| |
| function assert(x) { |
| if (!x) { |
| throw new Error("Assert fail"); |
| } |
| } |
| |
| const TSErrors = makeErrorTemplates({ |
| AbstractMethodHasImplementation: "Method '%0' cannot have an implementation because it is marked abstract.", |
| AbstractPropertyHasInitializer: "Property '%0' cannot have an initializer because it is marked abstract.", |
| AccesorCannotDeclareThisParameter: "'get' and 'set' accessors cannot declare 'this' parameters.", |
| AccesorCannotHaveTypeParameters: "An accessor cannot have type parameters.", |
| ClassMethodHasDeclare: "Class methods cannot have the 'declare' modifier.", |
| ClassMethodHasReadonly: "Class methods cannot have the 'readonly' modifier.", |
| ConstructorHasTypeParameters: "Type parameters cannot appear on a constructor declaration.", |
| DeclareAccessor: "'declare' is not allowed in %0ters.", |
| DeclareClassFieldHasInitializer: "Initializers are not allowed in ambient contexts.", |
| DeclareFunctionHasImplementation: "An implementation cannot be declared in ambient contexts.", |
| DuplicateAccessibilityModifier: "Accessibility modifier already seen.", |
| DuplicateModifier: "Duplicate modifier: '%0'.", |
| EmptyHeritageClauseType: "'%0' list cannot be empty.", |
| EmptyTypeArguments: "Type argument list cannot be empty.", |
| EmptyTypeParameters: "Type parameter list cannot be empty.", |
| ExpectedAmbientAfterExportDeclare: "'export declare' must be followed by an ambient declaration.", |
| ImportAliasHasImportType: "An import alias can not use 'import type'.", |
| IncompatibleModifiers: "'%0' modifier cannot be used with '%1' modifier.", |
| IndexSignatureHasAbstract: "Index signatures cannot have the 'abstract' modifier.", |
| IndexSignatureHasAccessibility: "Index signatures cannot have an accessibility modifier ('%0').", |
| IndexSignatureHasDeclare: "Index signatures cannot have the 'declare' modifier.", |
| IndexSignatureHasOverride: "'override' modifier cannot appear on an index signature.", |
| IndexSignatureHasStatic: "Index signatures cannot have the 'static' modifier.", |
| InvalidModifierOnTypeMember: "'%0' modifier cannot appear on a type member.", |
| InvalidModifiersOrder: "'%0' modifier must precede '%1' modifier.", |
| InvalidTupleMemberLabel: "Tuple members must be labeled with a simple identifier.", |
| MissingInterfaceName: "'interface' declarations must be followed by an identifier.", |
| MixedLabeledAndUnlabeledElements: "Tuple members must all have names or all not have names.", |
| NonAbstractClassHasAbstractMethod: "Abstract methods can only appear within an abstract class.", |
| NonClassMethodPropertyHasAbstractModifer: "'abstract' modifier can only appear on a class, method, or property declaration.", |
| OptionalTypeBeforeRequired: "A required element cannot follow an optional element.", |
| OverrideNotInSubClass: "This member cannot have an 'override' modifier because its containing class does not extend another class.", |
| PatternIsOptional: "A binding pattern parameter cannot be optional in an implementation signature.", |
| PrivateElementHasAbstract: "Private elements cannot have the 'abstract' modifier.", |
| PrivateElementHasAccessibility: "Private elements cannot have an accessibility modifier ('%0').", |
| ReadonlyForMethodSignature: "'readonly' modifier can only appear on a property declaration or index signature.", |
| ReservedArrowTypeParam: "This syntax is reserved in files with the .mts or .cts extension. Add a trailing comma, as in `<T,>() => ...`.", |
| ReservedTypeAssertion: "This syntax is reserved in files with the .mts or .cts extension. Use an `as` expression instead.", |
| SetAccesorCannotHaveOptionalParameter: "A 'set' accessor cannot have an optional parameter.", |
| SetAccesorCannotHaveRestParameter: "A 'set' accessor cannot have rest parameter.", |
| SetAccesorCannotHaveReturnType: "A 'set' accessor cannot have a return type annotation.", |
| StaticBlockCannotHaveModifier: "Static class blocks cannot have any modifier.", |
| TypeAnnotationAfterAssign: "Type annotations must come before default assignments, e.g. instead of `age = 25: number` use `age: number = 25`.", |
| TypeImportCannotSpecifyDefaultAndNamed: "A type-only import can specify a default import or named bindings, but not both.", |
| TypeModifierIsUsedInTypeExports: "The 'type' modifier cannot be used on a named export when 'export type' is used on its export statement.", |
| TypeModifierIsUsedInTypeImports: "The 'type' modifier cannot be used on a named import when 'import type' is used on its import statement.", |
| UnexpectedParameterModifier: "A parameter property is only allowed in a constructor implementation.", |
| UnexpectedReadonly: "'readonly' type modifier is only permitted on array and tuple literal types.", |
| UnexpectedTypeAnnotation: "Did not expect a type annotation here.", |
| UnexpectedTypeCastInParameter: "Unexpected type cast in parameter position.", |
| UnsupportedImportTypeArgument: "Argument in a type import must be a string literal.", |
| UnsupportedParameterPropertyKind: "A parameter property may not be declared using a binding pattern.", |
| UnsupportedSignatureParameterKind: "Name in a signature must be an Identifier, ObjectPattern or ArrayPattern, instead got %0." |
| }, ErrorCodes.SyntaxError, "typescript"); |
| |
| function keywordTypeFromName(value) { |
| switch (value) { |
| case "any": |
| return "TSAnyKeyword"; |
| |
| case "boolean": |
| return "TSBooleanKeyword"; |
| |
| case "bigint": |
| return "TSBigIntKeyword"; |
| |
| case "never": |
| return "TSNeverKeyword"; |
| |
| case "number": |
| return "TSNumberKeyword"; |
| |
| case "object": |
| return "TSObjectKeyword"; |
| |
| case "string": |
| return "TSStringKeyword"; |
| |
| case "symbol": |
| return "TSSymbolKeyword"; |
| |
| case "undefined": |
| return "TSUndefinedKeyword"; |
| |
| case "unknown": |
| return "TSUnknownKeyword"; |
| |
| default: |
| return undefined; |
| } |
| } |
| |
| function tsIsAccessModifier(modifier) { |
| return modifier === "private" || modifier === "public" || modifier === "protected"; |
| } |
| |
| var typescript = (superClass => class extends superClass { |
| getScopeHandler() { |
| return TypeScriptScopeHandler; |
| } |
| |
| tsIsIdentifier() { |
| return tokenIsIdentifier(this.state.type); |
| } |
| |
| tsTokenCanFollowModifier() { |
| return (this.match(0) || this.match(5) || this.match(51) || this.match(21) || this.match(130) || this.isLiteralPropertyName()) && !this.hasPrecedingLineBreak(); |
| } |
| |
| tsNextTokenCanFollowModifier() { |
| this.next(); |
| return this.tsTokenCanFollowModifier(); |
| } |
| |
| tsParseModifier(allowedModifiers, stopOnStartOfClassStaticBlock) { |
| if (!tokenIsIdentifier(this.state.type)) { |
| return undefined; |
| } |
| |
| const modifier = this.state.value; |
| |
| if (allowedModifiers.indexOf(modifier) !== -1) { |
| if (stopOnStartOfClassStaticBlock && this.tsIsStartOfStaticBlocks()) { |
| return undefined; |
| } |
| |
| if (this.tsTryParse(this.tsNextTokenCanFollowModifier.bind(this))) { |
| return modifier; |
| } |
| } |
| |
| return undefined; |
| } |
| |
| tsParseModifiers(modified, allowedModifiers, disallowedModifiers, errorTemplate, stopOnStartOfClassStaticBlock) { |
| const enforceOrder = (pos, modifier, before, after) => { |
| if (modifier === before && modified[after]) { |
| this.raise(pos, TSErrors.InvalidModifiersOrder, before, after); |
| } |
| }; |
| |
| const incompatible = (pos, modifier, mod1, mod2) => { |
| if (modified[mod1] && modifier === mod2 || modified[mod2] && modifier === mod1) { |
| this.raise(pos, TSErrors.IncompatibleModifiers, mod1, mod2); |
| } |
| }; |
| |
| for (;;) { |
| const startPos = this.state.start; |
| const modifier = this.tsParseModifier(allowedModifiers.concat(disallowedModifiers != null ? disallowedModifiers : []), stopOnStartOfClassStaticBlock); |
| if (!modifier) break; |
| |
| if (tsIsAccessModifier(modifier)) { |
| if (modified.accessibility) { |
| this.raise(startPos, TSErrors.DuplicateAccessibilityModifier); |
| } else { |
| enforceOrder(startPos, modifier, modifier, "override"); |
| enforceOrder(startPos, modifier, modifier, "static"); |
| enforceOrder(startPos, modifier, modifier, "readonly"); |
| modified.accessibility = modifier; |
| } |
| } else { |
| if (Object.hasOwnProperty.call(modified, modifier)) { |
| this.raise(startPos, TSErrors.DuplicateModifier, modifier); |
| } else { |
| enforceOrder(startPos, modifier, "static", "readonly"); |
| enforceOrder(startPos, modifier, "static", "override"); |
| enforceOrder(startPos, modifier, "override", "readonly"); |
| enforceOrder(startPos, modifier, "abstract", "override"); |
| incompatible(startPos, modifier, "declare", "override"); |
| incompatible(startPos, modifier, "static", "abstract"); |
| } |
| |
| modified[modifier] = true; |
| } |
| |
| if (disallowedModifiers != null && disallowedModifiers.includes(modifier)) { |
| this.raise(startPos, errorTemplate, modifier); |
| } |
| } |
| } |
| |
| tsIsListTerminator(kind) { |
| switch (kind) { |
| case "EnumMembers": |
| case "TypeMembers": |
| return this.match(8); |
| |
| case "HeritageClauseElement": |
| return this.match(5); |
| |
| case "TupleElementTypes": |
| return this.match(3); |
| |
| case "TypeParametersOrArguments": |
| return this.match(46); |
| } |
| |
| throw new Error("Unreachable"); |
| } |
| |
| tsParseList(kind, parseElement) { |
| const result = []; |
| |
| while (!this.tsIsListTerminator(kind)) { |
| result.push(parseElement()); |
| } |
| |
| return result; |
| } |
| |
| tsParseDelimitedList(kind, parseElement, refTrailingCommaPos) { |
| return nonNull(this.tsParseDelimitedListWorker(kind, parseElement, true, refTrailingCommaPos)); |
| } |
| |
| tsParseDelimitedListWorker(kind, parseElement, expectSuccess, refTrailingCommaPos) { |
| const result = []; |
| let trailingCommaPos = -1; |
| |
| for (;;) { |
| if (this.tsIsListTerminator(kind)) { |
| break; |
| } |
| |
| trailingCommaPos = -1; |
| const element = parseElement(); |
| |
| if (element == null) { |
| return undefined; |
| } |
| |
| result.push(element); |
| |
| if (this.eat(12)) { |
| trailingCommaPos = this.state.lastTokStart; |
| continue; |
| } |
| |
| if (this.tsIsListTerminator(kind)) { |
| break; |
| } |
| |
| if (expectSuccess) { |
| this.expect(12); |
| } |
| |
| return undefined; |
| } |
| |
| if (refTrailingCommaPos) { |
| refTrailingCommaPos.value = trailingCommaPos; |
| } |
| |
| return result; |
| } |
| |
| tsParseBracketedList(kind, parseElement, bracket, skipFirstToken, refTrailingCommaPos) { |
| if (!skipFirstToken) { |
| if (bracket) { |
| this.expect(0); |
| } else { |
| this.expect(45); |
| } |
| } |
| |
| const result = this.tsParseDelimitedList(kind, parseElement, refTrailingCommaPos); |
| |
| if (bracket) { |
| this.expect(3); |
| } else { |
| this.expect(46); |
| } |
| |
| return result; |
| } |
| |
| tsParseImportType() { |
| const node = this.startNode(); |
| this.expect(79); |
| this.expect(10); |
| |
| if (!this.match(125)) { |
| this.raise(this.state.start, TSErrors.UnsupportedImportTypeArgument); |
| } |
| |
| node.argument = this.parseExprAtom(); |
| this.expect(11); |
| |
| if (this.eat(16)) { |
| node.qualifier = this.tsParseEntityName(true); |
| } |
| |
| if (this.match(45)) { |
| node.typeParameters = this.tsParseTypeArguments(); |
| } |
| |
| return this.finishNode(node, "TSImportType"); |
| } |
| |
| tsParseEntityName(allowReservedWords) { |
| let entity = this.parseIdentifier(); |
| |
| while (this.eat(16)) { |
| const node = this.startNodeAtNode(entity); |
| node.left = entity; |
| node.right = this.parseIdentifier(allowReservedWords); |
| entity = this.finishNode(node, "TSQualifiedName"); |
| } |
| |
| return entity; |
| } |
| |
| tsParseTypeReference() { |
| const node = this.startNode(); |
| node.typeName = this.tsParseEntityName(false); |
| |
| if (!this.hasPrecedingLineBreak() && this.match(45)) { |
| node.typeParameters = this.tsParseTypeArguments(); |
| } |
| |
| return this.finishNode(node, "TSTypeReference"); |
| } |
| |
| tsParseThisTypePredicate(lhs) { |
| this.next(); |
| const node = this.startNodeAtNode(lhs); |
| node.parameterName = lhs; |
| node.typeAnnotation = this.tsParseTypeAnnotation(false); |
| node.asserts = false; |
| return this.finishNode(node, "TSTypePredicate"); |
| } |
| |
| tsParseThisTypeNode() { |
| const node = this.startNode(); |
| this.next(); |
| return this.finishNode(node, "TSThisType"); |
| } |
| |
| tsParseTypeQuery() { |
| const node = this.startNode(); |
| this.expect(83); |
| |
| if (this.match(79)) { |
| node.exprName = this.tsParseImportType(); |
| } else { |
| node.exprName = this.tsParseEntityName(true); |
| } |
| |
| return this.finishNode(node, "TSTypeQuery"); |
| } |
| |
| tsParseTypeParameter() { |
| const node = this.startNode(); |
| node.name = this.tsParseTypeParameterName(); |
| node.constraint = this.tsEatThenParseType(77); |
| node.default = this.tsEatThenParseType(29); |
| return this.finishNode(node, "TSTypeParameter"); |
| } |
| |
| tsTryParseTypeParameters() { |
| if (this.match(45)) { |
| return this.tsParseTypeParameters(); |
| } |
| } |
| |
| tsParseTypeParameters() { |
| const node = this.startNode(); |
| |
| if (this.match(45) || this.match(134)) { |
| this.next(); |
| } else { |
| this.unexpected(); |
| } |
| |
| const refTrailingCommaPos = { |
| value: -1 |
| }; |
| node.params = this.tsParseBracketedList("TypeParametersOrArguments", this.tsParseTypeParameter.bind(this), false, true, refTrailingCommaPos); |
| |
| if (node.params.length === 0) { |
| this.raise(node.start, TSErrors.EmptyTypeParameters); |
| } |
| |
| if (refTrailingCommaPos.value !== -1) { |
| this.addExtra(node, "trailingComma", refTrailingCommaPos.value); |
| } |
| |
| return this.finishNode(node, "TSTypeParameterDeclaration"); |
| } |
| |
| tsTryNextParseConstantContext() { |
| if (this.lookahead().type === 71) { |
| this.next(); |
| return this.tsParseTypeReference(); |
| } |
| |
| return null; |
| } |
| |
| tsFillSignature(returnToken, signature) { |
| const returnTokenRequired = returnToken === 19; |
| const paramsKey = "parameters"; |
| const returnTypeKey = "typeAnnotation"; |
| signature.typeParameters = this.tsTryParseTypeParameters(); |
| this.expect(10); |
| signature[paramsKey] = this.tsParseBindingListForSignature(); |
| |
| if (returnTokenRequired) { |
| signature[returnTypeKey] = this.tsParseTypeOrTypePredicateAnnotation(returnToken); |
| } else if (this.match(returnToken)) { |
| signature[returnTypeKey] = this.tsParseTypeOrTypePredicateAnnotation(returnToken); |
| } |
| } |
| |
| tsParseBindingListForSignature() { |
| return this.parseBindingList(11, 41).map(pattern => { |
| if (pattern.type !== "Identifier" && pattern.type !== "RestElement" && pattern.type !== "ObjectPattern" && pattern.type !== "ArrayPattern") { |
| this.raise(pattern.start, TSErrors.UnsupportedSignatureParameterKind, pattern.type); |
| } |
| |
| return pattern; |
| }); |
| } |
| |
| tsParseTypeMemberSemicolon() { |
| if (!this.eat(12) && !this.isLineTerminator()) { |
| this.expect(13); |
| } |
| } |
| |
| tsParseSignatureMember(kind, node) { |
| this.tsFillSignature(14, node); |
| this.tsParseTypeMemberSemicolon(); |
| return this.finishNode(node, kind); |
| } |
| |
| tsIsUnambiguouslyIndexSignature() { |
| this.next(); |
| |
| if (tokenIsIdentifier(this.state.type)) { |
| this.next(); |
| return this.match(14); |
| } |
| |
| return false; |
| } |
| |
| tsTryParseIndexSignature(node) { |
| if (!(this.match(0) && this.tsLookAhead(this.tsIsUnambiguouslyIndexSignature.bind(this)))) { |
| return undefined; |
| } |
| |
| this.expect(0); |
| const id = this.parseIdentifier(); |
| id.typeAnnotation = this.tsParseTypeAnnotation(); |
| this.resetEndLocation(id); |
| this.expect(3); |
| node.parameters = [id]; |
| const type = this.tsTryParseTypeAnnotation(); |
| if (type) node.typeAnnotation = type; |
| this.tsParseTypeMemberSemicolon(); |
| return this.finishNode(node, "TSIndexSignature"); |
| } |
| |
| tsParsePropertyOrMethodSignature(node, readonly) { |
| if (this.eat(17)) node.optional = true; |
| const nodeAny = node; |
| |
| if (this.match(10) || this.match(45)) { |
| if (readonly) { |
| this.raise(node.start, TSErrors.ReadonlyForMethodSignature); |
| } |
| |
| const method = nodeAny; |
| |
| if (method.kind && this.match(45)) { |
| this.raise(this.state.pos, TSErrors.AccesorCannotHaveTypeParameters); |
| } |
| |
| this.tsFillSignature(14, method); |
| this.tsParseTypeMemberSemicolon(); |
| const paramsKey = "parameters"; |
| const returnTypeKey = "typeAnnotation"; |
| |
| if (method.kind === "get") { |
| if (method[paramsKey].length > 0) { |
| this.raise(this.state.pos, ErrorMessages.BadGetterArity); |
| |
| if (this.isThisParam(method[paramsKey][0])) { |
| this.raise(this.state.pos, TSErrors.AccesorCannotDeclareThisParameter); |
| } |
| } |
| } else if (method.kind === "set") { |
| if (method[paramsKey].length !== 1) { |
| this.raise(this.state.pos, ErrorMessages.BadSetterArity); |
| } else { |
| const firstParameter = method[paramsKey][0]; |
| |
| if (this.isThisParam(firstParameter)) { |
| this.raise(this.state.pos, TSErrors.AccesorCannotDeclareThisParameter); |
| } |
| |
| if (firstParameter.type === "Identifier" && firstParameter.optional) { |
| this.raise(this.state.pos, TSErrors.SetAccesorCannotHaveOptionalParameter); |
| } |
| |
| if (firstParameter.type === "RestElement") { |
| this.raise(this.state.pos, TSErrors.SetAccesorCannotHaveRestParameter); |
| } |
| } |
| |
| if (method[returnTypeKey]) { |
| this.raise(method[returnTypeKey].start, TSErrors.SetAccesorCannotHaveReturnType); |
| } |
| } else { |
| method.kind = "method"; |
| } |
| |
| return this.finishNode(method, "TSMethodSignature"); |
| } else { |
| const property = nodeAny; |
| if (readonly) property.readonly = true; |
| const type = this.tsTryParseTypeAnnotation(); |
| if (type) property.typeAnnotation = type; |
| this.tsParseTypeMemberSemicolon(); |
| return this.finishNode(property, "TSPropertySignature"); |
| } |
| } |
| |
| tsParseTypeMember() { |
| const node = this.startNode(); |
| |
| if (this.match(10) || this.match(45)) { |
| return this.tsParseSignatureMember("TSCallSignatureDeclaration", node); |
| } |
| |
| if (this.match(73)) { |
| const id = this.startNode(); |
| this.next(); |
| |
| if (this.match(10) || this.match(45)) { |
| return this.tsParseSignatureMember("TSConstructSignatureDeclaration", node); |
| } else { |
| node.key = this.createIdentifier(id, "new"); |
| return this.tsParsePropertyOrMethodSignature(node, false); |
| } |
| } |
| |
| this.tsParseModifiers(node, ["readonly"], ["declare", "abstract", "private", "protected", "public", "static", "override"], TSErrors.InvalidModifierOnTypeMember); |
| const idx = this.tsTryParseIndexSignature(node); |
| |
| if (idx) { |
| return idx; |
| } |
| |
| this.parsePropertyName(node); |
| |
| if (!node.computed && node.key.type === "Identifier" && (node.key.name === "get" || node.key.name === "set") && this.tsTokenCanFollowModifier()) { |
| node.kind = node.key.name; |
| this.parsePropertyName(node); |
| } |
| |
| return this.tsParsePropertyOrMethodSignature(node, !!node.readonly); |
| } |
| |
| tsParseTypeLiteral() { |
| const node = this.startNode(); |
| node.members = this.tsParseObjectTypeMembers(); |
| return this.finishNode(node, "TSTypeLiteral"); |
| } |
| |
| tsParseObjectTypeMembers() { |
| this.expect(5); |
| const members = this.tsParseList("TypeMembers", this.tsParseTypeMember.bind(this)); |
| this.expect(8); |
| return members; |
| } |
| |
| tsIsStartOfMappedType() { |
| this.next(); |
| |
| if (this.eat(49)) { |
| return this.isContextual(114); |
| } |
| |
| if (this.isContextual(114)) { |
| this.next(); |
| } |
| |
| if (!this.match(0)) { |
| return false; |
| } |
| |
| this.next(); |
| |
| if (!this.tsIsIdentifier()) { |
| return false; |
| } |
| |
| this.next(); |
| return this.match(54); |
| } |
| |
| tsParseMappedTypeParameter() { |
| const node = this.startNode(); |
| node.name = this.tsParseTypeParameterName(); |
| node.constraint = this.tsExpectThenParseType(54); |
| return this.finishNode(node, "TSTypeParameter"); |
| } |
| |
| tsParseMappedType() { |
| const node = this.startNode(); |
| this.expect(5); |
| |
| if (this.match(49)) { |
| node.readonly = this.state.value; |
| this.next(); |
| this.expectContextual(114); |
| } else if (this.eatContextual(114)) { |
| node.readonly = true; |
| } |
| |
| this.expect(0); |
| node.typeParameter = this.tsParseMappedTypeParameter(); |
| node.nameType = this.eatContextual(89) ? this.tsParseType() : null; |
| this.expect(3); |
| |
| if (this.match(49)) { |
| node.optional = this.state.value; |
| this.next(); |
| this.expect(17); |
| } else if (this.eat(17)) { |
| node.optional = true; |
| } |
| |
| node.typeAnnotation = this.tsTryParseType(); |
| this.semicolon(); |
| this.expect(8); |
| return this.finishNode(node, "TSMappedType"); |
| } |
| |
| tsParseTupleType() { |
| const node = this.startNode(); |
| node.elementTypes = this.tsParseBracketedList("TupleElementTypes", this.tsParseTupleElementType.bind(this), true, false); |
| let seenOptionalElement = false; |
| let labeledElements = null; |
| node.elementTypes.forEach(elementNode => { |
| var _labeledElements; |
| |
| let { |
| type |
| } = elementNode; |
| |
| if (seenOptionalElement && type !== "TSRestType" && type !== "TSOptionalType" && !(type === "TSNamedTupleMember" && elementNode.optional)) { |
| this.raise(elementNode.start, TSErrors.OptionalTypeBeforeRequired); |
| } |
| |
| seenOptionalElement = seenOptionalElement || type === "TSNamedTupleMember" && elementNode.optional || type === "TSOptionalType"; |
| |
| if (type === "TSRestType") { |
| elementNode = elementNode.typeAnnotation; |
| type = elementNode.type; |
| } |
| |
| const isLabeled = type === "TSNamedTupleMember"; |
| labeledElements = (_labeledElements = labeledElements) != null ? _labeledElements : isLabeled; |
| |
| if (labeledElements !== isLabeled) { |
| this.raise(elementNode.start, TSErrors.MixedLabeledAndUnlabeledElements); |
| } |
| }); |
| return this.finishNode(node, "TSTupleType"); |
| } |
| |
| tsParseTupleElementType() { |
| const { |
| start: startPos, |
| startLoc |
| } = this.state; |
| const rest = this.eat(21); |
| let type = this.tsParseType(); |
| const optional = this.eat(17); |
| const labeled = this.eat(14); |
| |
| if (labeled) { |
| const labeledNode = this.startNodeAtNode(type); |
| labeledNode.optional = optional; |
| |
| if (type.type === "TSTypeReference" && !type.typeParameters && type.typeName.type === "Identifier") { |
| labeledNode.label = type.typeName; |
| } else { |
| this.raise(type.start, TSErrors.InvalidTupleMemberLabel); |
| labeledNode.label = type; |
| } |
| |
| labeledNode.elementType = this.tsParseType(); |
| type = this.finishNode(labeledNode, "TSNamedTupleMember"); |
| } else if (optional) { |
| const optionalTypeNode = this.startNodeAtNode(type); |
| optionalTypeNode.typeAnnotation = type; |
| type = this.finishNode(optionalTypeNode, "TSOptionalType"); |
| } |
| |
| if (rest) { |
| const restNode = this.startNodeAt(startPos, startLoc); |
| restNode.typeAnnotation = type; |
| type = this.finishNode(restNode, "TSRestType"); |
| } |
| |
| return type; |
| } |
| |
| tsParseParenthesizedType() { |
| const node = this.startNode(); |
| this.expect(10); |
| node.typeAnnotation = this.tsParseType(); |
| this.expect(11); |
| return this.finishNode(node, "TSParenthesizedType"); |
| } |
| |
| tsParseFunctionOrConstructorType(type, abstract) { |
| const node = this.startNode(); |
| |
| if (type === "TSConstructorType") { |
| node.abstract = !!abstract; |
| if (abstract) this.next(); |
| this.next(); |
| } |
| |
| this.tsFillSignature(19, node); |
| return this.finishNode(node, type); |
| } |
| |
| tsParseLiteralTypeNode() { |
| const node = this.startNode(); |
| |
| node.literal = (() => { |
| switch (this.state.type) { |
| case 126: |
| case 127: |
| case 125: |
| case 81: |
| case 82: |
| return this.parseExprAtom(); |
| |
| default: |
| throw this.unexpected(); |
| } |
| })(); |
| |
| return this.finishNode(node, "TSLiteralType"); |
| } |
| |
| tsParseTemplateLiteralType() { |
| const node = this.startNode(); |
| node.literal = this.parseTemplate(false); |
| return this.finishNode(node, "TSLiteralType"); |
| } |
| |
| parseTemplateSubstitution() { |
| if (this.state.inType) return this.tsParseType(); |
| return super.parseTemplateSubstitution(); |
| } |
| |
| tsParseThisTypeOrThisTypePredicate() { |
| const thisKeyword = this.tsParseThisTypeNode(); |
| |
| if (this.isContextual(109) && !this.hasPrecedingLineBreak()) { |
| return this.tsParseThisTypePredicate(thisKeyword); |
| } else { |
| return thisKeyword; |
| } |
| } |
| |
| tsParseNonArrayType() { |
| switch (this.state.type) { |
| case 125: |
| case 126: |
| case 127: |
| case 81: |
| case 82: |
| return this.tsParseLiteralTypeNode(); |
| |
| case 49: |
| if (this.state.value === "-") { |
| const node = this.startNode(); |
| const nextToken = this.lookahead(); |
| |
| if (nextToken.type !== 126 && nextToken.type !== 127) { |
| throw this.unexpected(); |
| } |
| |
| node.literal = this.parseMaybeUnary(); |
| return this.finishNode(node, "TSLiteralType"); |
| } |
| |
| break; |
| |
| case 74: |
| return this.tsParseThisTypeOrThisTypePredicate(); |
| |
| case 83: |
| return this.tsParseTypeQuery(); |
| |
| case 79: |
| return this.tsParseImportType(); |
| |
| case 5: |
| return this.tsLookAhead(this.tsIsStartOfMappedType.bind(this)) ? this.tsParseMappedType() : this.tsParseTypeLiteral(); |
| |
| case 0: |
| return this.tsParseTupleType(); |
| |
| case 10: |
| return this.tsParseParenthesizedType(); |
| |
| case 25: |
| case 24: |
| return this.tsParseTemplateLiteralType(); |
| |
| default: |
| { |
| const { |
| type |
| } = this.state; |
| |
| if (tokenIsIdentifier(type) || type === 84 || type === 80) { |
| const nodeType = type === 84 ? "TSVoidKeyword" : type === 80 ? "TSNullKeyword" : keywordTypeFromName(this.state.value); |
| |
| if (nodeType !== undefined && this.lookaheadCharCode() !== 46) { |
| const node = this.startNode(); |
| this.next(); |
| return this.finishNode(node, nodeType); |
| } |
| |
| return this.tsParseTypeReference(); |
| } |
| } |
| } |
| |
| throw this.unexpected(); |
| } |
| |
| tsParseArrayTypeOrHigher() { |
| let type = this.tsParseNonArrayType(); |
| |
| while (!this.hasPrecedingLineBreak() && this.eat(0)) { |
| if (this.match(3)) { |
| const node = this.startNodeAtNode(type); |
| node.elementType = type; |
| this.expect(3); |
| type = this.finishNode(node, "TSArrayType"); |
| } else { |
| const node = this.startNodeAtNode(type); |
| node.objectType = type; |
| node.indexType = this.tsParseType(); |
| this.expect(3); |
| type = this.finishNode(node, "TSIndexedAccessType"); |
| } |
| } |
| |
| return type; |
| } |
| |
| tsParseTypeOperator() { |
| const node = this.startNode(); |
| const operator = this.state.value; |
| this.next(); |
| node.operator = operator; |
| node.typeAnnotation = this.tsParseTypeOperatorOrHigher(); |
| |
| if (operator === "readonly") { |
| this.tsCheckTypeAnnotationForReadOnly(node); |
| } |
| |
| return this.finishNode(node, "TSTypeOperator"); |
| } |
| |
| tsCheckTypeAnnotationForReadOnly(node) { |
| switch (node.typeAnnotation.type) { |
| case "TSTupleType": |
| case "TSArrayType": |
| return; |
| |
| default: |
| this.raise(node.start, TSErrors.UnexpectedReadonly); |
| } |
| } |
| |
| tsParseInferType() { |
| const node = this.startNode(); |
| this.expectContextual(108); |
| const typeParameter = this.startNode(); |
| typeParameter.name = this.tsParseTypeParameterName(); |
| node.typeParameter = this.finishNode(typeParameter, "TSTypeParameter"); |
| return this.finishNode(node, "TSInferType"); |
| } |
| |
| tsParseTypeOperatorOrHigher() { |
| const isTypeOperator = tokenIsTSTypeOperator(this.state.type) && !this.state.containsEsc; |
| return isTypeOperator ? this.tsParseTypeOperator() : this.isContextual(108) ? this.tsParseInferType() : this.tsParseArrayTypeOrHigher(); |
| } |
| |
| tsParseUnionOrIntersectionType(kind, parseConstituentType, operator) { |
| const node = this.startNode(); |
| const hasLeadingOperator = this.eat(operator); |
| const types = []; |
| |
| do { |
| types.push(parseConstituentType()); |
| } while (this.eat(operator)); |
| |
| if (types.length === 1 && !hasLeadingOperator) { |
| return types[0]; |
| } |
| |
| node.types = types; |
| return this.finishNode(node, kind); |
| } |
| |
| tsParseIntersectionTypeOrHigher() { |
| return this.tsParseUnionOrIntersectionType("TSIntersectionType", this.tsParseTypeOperatorOrHigher.bind(this), 43); |
| } |
| |
| tsParseUnionTypeOrHigher() { |
| return this.tsParseUnionOrIntersectionType("TSUnionType", this.tsParseIntersectionTypeOrHigher.bind(this), 41); |
| } |
| |
| tsIsStartOfFunctionType() { |
| if (this.match(45)) { |
| return true; |
| } |
| |
| return this.match(10) && this.tsLookAhead(this.tsIsUnambiguouslyStartOfFunctionType.bind(this)); |
| } |
| |
| tsSkipParameterStart() { |
| if (tokenIsIdentifier(this.state.type) || this.match(74)) { |
| this.next(); |
| return true; |
| } |
| |
| if (this.match(5)) { |
| let braceStackCounter = 1; |
| this.next(); |
| |
| while (braceStackCounter > 0) { |
| if (this.match(5)) { |
| ++braceStackCounter; |
| } else if (this.match(8)) { |
| --braceStackCounter; |
| } |
| |
| this.next(); |
| } |
| |
| return true; |
| } |
| |
| if (this.match(0)) { |
| let braceStackCounter = 1; |
| this.next(); |
| |
| while (braceStackCounter > 0) { |
| if (this.match(0)) { |
| ++braceStackCounter; |
| } else if (this.match(3)) { |
| --braceStackCounter; |
| } |
| |
| this.next(); |
| } |
| |
| return true; |
| } |
| |
| return false; |
| } |
| |
| tsIsUnambiguouslyStartOfFunctionType() { |
| this.next(); |
| |
| if (this.match(11) || this.match(21)) { |
| return true; |
| } |
| |
| if (this.tsSkipParameterStart()) { |
| if (this.match(14) || this.match(12) || this.match(17) || this.match(29)) { |
| return true; |
| } |
| |
| if (this.match(11)) { |
| this.next(); |
| |
| if (this.match(19)) { |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| tsParseTypeOrTypePredicateAnnotation(returnToken) { |
| return this.tsInType(() => { |
| const t = this.startNode(); |
| this.expect(returnToken); |
| const node = this.startNode(); |
| const asserts = !!this.tsTryParse(this.tsParseTypePredicateAsserts.bind(this)); |
| |
| if (asserts && this.match(74)) { |
| let thisTypePredicate = this.tsParseThisTypeOrThisTypePredicate(); |
| |
| if (thisTypePredicate.type === "TSThisType") { |
| node.parameterName = thisTypePredicate; |
| node.asserts = true; |
| node.typeAnnotation = null; |
| thisTypePredicate = this.finishNode(node, "TSTypePredicate"); |
| } else { |
| this.resetStartLocationFromNode(thisTypePredicate, node); |
| thisTypePredicate.asserts = true; |
| } |
| |
| t.typeAnnotation = thisTypePredicate; |
| return this.finishNode(t, "TSTypeAnnotation"); |
| } |
| |
| const typePredicateVariable = this.tsIsIdentifier() && this.tsTryParse(this.tsParseTypePredicatePrefix.bind(this)); |
| |
| if (!typePredicateVariable) { |
| if (!asserts) { |
| return this.tsParseTypeAnnotation(false, t); |
| } |
| |
| node.parameterName = this.parseIdentifier(); |
| node.asserts = asserts; |
| node.typeAnnotation = null; |
| t.typeAnnotation = this.finishNode(node, "TSTypePredicate"); |
| return this.finishNode(t, "TSTypeAnnotation"); |
| } |
| |
| const type = this.tsParseTypeAnnotation(false); |
| node.parameterName = typePredicateVariable; |
| node.typeAnnotation = type; |
| node.asserts = asserts; |
| t.typeAnnotation = this.finishNode(node, "TSTypePredicate"); |
| return this.finishNode(t, "TSTypeAnnotation"); |
| }); |
| } |
| |
| tsTryParseTypeOrTypePredicateAnnotation() { |
| return this.match(14) ? this.tsParseTypeOrTypePredicateAnnotation(14) : undefined; |
| } |
| |
| tsTryParseTypeAnnotation() { |
| return this.match(14) ? this.tsParseTypeAnnotation() : undefined; |
| } |
| |
| tsTryParseType() { |
| return this.tsEatThenParseType(14); |
| } |
| |
| tsParseTypePredicatePrefix() { |
| const id = this.parseIdentifier(); |
| |
| if (this.isContextual(109) && !this.hasPrecedingLineBreak()) { |
| this.next(); |
| return id; |
| } |
| } |
| |
| tsParseTypePredicateAsserts() { |
| if (this.state.type !== 102) { |
| return false; |
| } |
| |
| const containsEsc = this.state.containsEsc; |
| this.next(); |
| |
| if (!tokenIsIdentifier(this.state.type) && !this.match(74)) { |
| return false; |
| } |
| |
| if (containsEsc) { |
| this.raise(this.state.lastTokStart, ErrorMessages.InvalidEscapedReservedWord, "asserts"); |
| } |
| |
| return true; |
| } |
| |
| tsParseTypeAnnotation(eatColon = true, t = this.startNode()) { |
| this.tsInType(() => { |
| if (eatColon) this.expect(14); |
| t.typeAnnotation = this.tsParseType(); |
| }); |
| return this.finishNode(t, "TSTypeAnnotation"); |
| } |
| |
| tsParseType() { |
| assert(this.state.inType); |
| const type = this.tsParseNonConditionalType(); |
| |
| if (this.hasPrecedingLineBreak() || !this.eat(77)) { |
| return type; |
| } |
| |
| const node = this.startNodeAtNode(type); |
| node.checkType = type; |
| node.extendsType = this.tsParseNonConditionalType(); |
| this.expect(17); |
| node.trueType = this.tsParseType(); |
| this.expect(14); |
| node.falseType = this.tsParseType(); |
| return this.finishNode(node, "TSConditionalType"); |
| } |
| |
| isAbstractConstructorSignature() { |
| return this.isContextual(116) && this.lookahead().type === 73; |
| } |
| |
| tsParseNonConditionalType() { |
| if (this.tsIsStartOfFunctionType()) { |
| return this.tsParseFunctionOrConstructorType("TSFunctionType"); |
| } |
| |
| if (this.match(73)) { |
| return this.tsParseFunctionOrConstructorType("TSConstructorType"); |
| } else if (this.isAbstractConstructorSignature()) { |
| return this.tsParseFunctionOrConstructorType("TSConstructorType", true); |
| } |
| |
| return this.tsParseUnionTypeOrHigher(); |
| } |
| |
| tsParseTypeAssertion() { |
| if (this.getPluginOption("typescript", "disallowAmbiguousJSXLike")) { |
| this.raise(this.state.start, TSErrors.ReservedTypeAssertion); |
| } |
| |
| const node = this.startNode(); |
| |
| const _const = this.tsTryNextParseConstantContext(); |
| |
| node.typeAnnotation = _const || this.tsNextThenParseType(); |
| this.expect(46); |
| node.expression = this.parseMaybeUnary(); |
| return this.finishNode(node, "TSTypeAssertion"); |
| } |
| |
| tsParseHeritageClause(descriptor) { |
| const originalStart = this.state.start; |
| const delimitedList = this.tsParseDelimitedList("HeritageClauseElement", this.tsParseExpressionWithTypeArguments.bind(this)); |
| |
| if (!delimitedList.length) { |
| this.raise(originalStart, TSErrors.EmptyHeritageClauseType, descriptor); |
| } |
| |
| return delimitedList; |
| } |
| |
| tsParseExpressionWithTypeArguments() { |
| const node = this.startNode(); |
| node.expression = this.tsParseEntityName(false); |
| |
| if (this.match(45)) { |
| node.typeParameters = this.tsParseTypeArguments(); |
| } |
| |
| return this.finishNode(node, "TSExpressionWithTypeArguments"); |
| } |
| |
| tsParseInterfaceDeclaration(node) { |
| if (tokenIsIdentifier(this.state.type)) { |
| node.id = this.parseIdentifier(); |
| this.checkLVal(node.id, "typescript interface declaration", BIND_TS_INTERFACE); |
| } else { |
| node.id = null; |
| this.raise(this.state.start, TSErrors.MissingInterfaceName); |
| } |
| |
| node.typeParameters = this.tsTryParseTypeParameters(); |
| |
| if (this.eat(77)) { |
| node.extends = this.tsParseHeritageClause("extends"); |
| } |
| |
| const body = this.startNode(); |
| body.body = this.tsInType(this.tsParseObjectTypeMembers.bind(this)); |
| node.body = this.finishNode(body, "TSInterfaceBody"); |
| return this.finishNode(node, "TSInterfaceDeclaration"); |
| } |
| |
| tsParseTypeAliasDeclaration(node) { |
| node.id = this.parseIdentifier(); |
| this.checkLVal(node.id, "typescript type alias", BIND_TS_TYPE); |
| node.typeParameters = this.tsTryParseTypeParameters(); |
| node.typeAnnotation = this.tsInType(() => { |
| this.expect(29); |
| |
| if (this.isContextual(107) && this.lookahead().type !== 16) { |
| const node = this.startNode(); |
| this.next(); |
| return this.finishNode(node, "TSIntrinsicKeyword"); |
| } |
| |
| return this.tsParseType(); |
| }); |
| this.semicolon(); |
| return this.finishNode(node, "TSTypeAliasDeclaration"); |
| } |
| |
| tsInNoContext(cb) { |
| const oldContext = this.state.context; |
| this.state.context = [oldContext[0]]; |
| |
| try { |
| return cb(); |
| } finally { |
| this.state.context = oldContext; |
| } |
| } |
| |
| tsInType(cb) { |
| const oldInType = this.state.inType; |
| this.state.inType = true; |
| |
| try { |
| return cb(); |
| } finally { |
| this.state.inType = oldInType; |
| } |
| } |
| |
| tsEatThenParseType(token) { |
| return !this.match(token) ? undefined : this.tsNextThenParseType(); |
| } |
| |
| tsExpectThenParseType(token) { |
| return this.tsDoThenParseType(() => this.expect(token)); |
| } |
| |
| tsNextThenParseType() { |
| return this.tsDoThenParseType(() => this.next()); |
| } |
| |
| tsDoThenParseType(cb) { |
| return this.tsInType(() => { |
| cb(); |
| return this.tsParseType(); |
| }); |
| } |
| |
| tsParseEnumMember() { |
| const node = this.startNode(); |
| node.id = this.match(125) ? this.parseExprAtom() : this.parseIdentifier(true); |
| |
| if (this.eat(29)) { |
| node.initializer = this.parseMaybeAssignAllowIn(); |
| } |
| |
| return this.finishNode(node, "TSEnumMember"); |
| } |
| |
| tsParseEnumDeclaration(node, isConst) { |
| if (isConst) node.const = true; |
| node.id = this.parseIdentifier(); |
| this.checkLVal(node.id, "typescript enum declaration", isConst ? BIND_TS_CONST_ENUM : BIND_TS_ENUM); |
| this.expect(5); |
| node.members = this.tsParseDelimitedList("EnumMembers", this.tsParseEnumMember.bind(this)); |
| this.expect(8); |
| return this.finishNode(node, "TSEnumDeclaration"); |
| } |
| |
| tsParseModuleBlock() { |
| const node = this.startNode(); |
| this.scope.enter(SCOPE_OTHER); |
| this.expect(5); |
| this.parseBlockOrModuleBlockBody(node.body = [], undefined, true, 8); |
| this.scope.exit(); |
| return this.finishNode(node, "TSModuleBlock"); |
| } |
| |
| tsParseModuleOrNamespaceDeclaration(node, nested = false) { |
| node.id = this.parseIdentifier(); |
| |
| if (!nested) { |
| this.checkLVal(node.id, "module or namespace declaration", BIND_TS_NAMESPACE); |
| } |
| |
| if (this.eat(16)) { |
| const inner = this.startNode(); |
| this.tsParseModuleOrNamespaceDeclaration(inner, true); |
| node.body = inner; |
| } else { |
| this.scope.enter(SCOPE_TS_MODULE); |
| this.prodParam.enter(PARAM); |
| node.body = this.tsParseModuleBlock(); |
| this.prodParam.exit(); |
| this.scope.exit(); |
| } |
| |
| return this.finishNode(node, "TSModuleDeclaration"); |
| } |
| |
| tsParseAmbientExternalModuleDeclaration(node) { |
| if (this.isContextual(105)) { |
| node.global = true; |
| node.id = this.parseIdentifier(); |
| } else if (this.match(125)) { |
| node.id = this.parseExprAtom(); |
| } else { |
| this.unexpected(); |
| } |
| |
| if (this.match(5)) { |
| this.scope.enter(SCOPE_TS_MODULE); |
| this.prodParam.enter(PARAM); |
| node.body = this.tsParseModuleBlock(); |
| this.prodParam.exit(); |
| this.scope.exit(); |
| } else { |
| this.semicolon(); |
| } |
| |
| return this.finishNode(node, "TSModuleDeclaration"); |
| } |
| |
| tsParseImportEqualsDeclaration(node, isExport) { |
| node.isExport = isExport || false; |
| node.id = this.parseIdentifier(); |
| this.checkLVal(node.id, "import equals declaration", BIND_LEXICAL); |
| this.expect(29); |
| const moduleReference = this.tsParseModuleReference(); |
| |
| if (node.importKind === "type" && moduleReference.type !== "TSExternalModuleReference") { |
| this.raise(moduleReference.start, TSErrors.ImportAliasHasImportType); |
| } |
| |
| node.moduleReference = moduleReference; |
| this.semicolon(); |
| return this.finishNode(node, "TSImportEqualsDeclaration"); |
| } |
| |
| tsIsExternalModuleReference() { |
| return this.isContextual(112) && this.lookaheadCharCode() === 40; |
| } |
| |
| tsParseModuleReference() { |
| return this.tsIsExternalModuleReference() ? this.tsParseExternalModuleReference() : this.tsParseEntityName(false); |
| } |
| |
| tsParseExternalModuleReference() { |
| const node = this.startNode(); |
| this.expectContextual(112); |
| this.expect(10); |
| |
| if (!this.match(125)) { |
| throw this.unexpected(); |
| } |
| |
| node.expression = this.parseExprAtom(); |
| this.expect(11); |
| return this.finishNode(node, "TSExternalModuleReference"); |
| } |
| |
| tsLookAhead(f) { |
| const state = this.state.clone(); |
| const res = f(); |
| this.state = state; |
| return res; |
| } |
| |
| tsTryParseAndCatch(f) { |
| const result = this.tryParse(abort => f() || abort()); |
| if (result.aborted || !result.node) return undefined; |
| if (result.error) this.state = result.failState; |
| return result.node; |
| } |
| |
| tsTryParse(f) { |
| const state = this.state.clone(); |
| const result = f(); |
| |
| if (result !== undefined && result !== false) { |
| return result; |
| } else { |
| this.state = state; |
| return undefined; |
| } |
| } |
| |
| tsTryParseDeclare(nany) { |
| if (this.isLineTerminator()) { |
| return; |
| } |
| |
| let starttype = this.state.type; |
| let kind; |
| |
| if (this.isContextual(95)) { |
| starttype = 70; |
| kind = "let"; |
| } |
| |
| return this.tsInAmbientContext(() => { |
| switch (starttype) { |
| case 64: |
| nany.declare = true; |
| return this.parseFunctionStatement(nany, false, true); |
| |
| case 76: |
| nany.declare = true; |
| return this.parseClass(nany, true, false); |
| |
| case 71: |
| if (this.match(71) && this.isLookaheadContextual("enum")) { |
| this.expect(71); |
| this.expectContextual(118); |
| return this.tsParseEnumDeclaration(nany, true); |
| } |
| |
| case 70: |
| kind = kind || this.state.value; |
| return this.parseVarStatement(nany, kind); |
| |
| case 105: |
| return this.tsParseAmbientExternalModuleDeclaration(nany); |
| |
| default: |
| { |
| if (tokenIsIdentifier(starttype)) { |
| return this.tsParseDeclaration(nany, this.state.value, true); |
| } |
| } |
| } |
| }); |
| } |
| |
| tsTryParseExportDeclaration() { |
| return this.tsParseDeclaration(this.startNode(), this.state.value, true); |
| } |
| |
| tsParseExpressionStatement(node, expr) { |
| switch (expr.name) { |
| case "declare": |
| { |
| const declaration = this.tsTryParseDeclare(node); |
| |
| if (declaration) { |
| declaration.declare = true; |
| return declaration; |
| } |
| |
| break; |
| } |
| |
| case "global": |
| if (this.match(5)) { |
| this.scope.enter(SCOPE_TS_MODULE); |
| this.prodParam.enter(PARAM); |
| const mod = node; |
| mod.global = true; |
| mod.id = expr; |
| mod.body = this.tsParseModuleBlock(); |
| this.scope.exit(); |
| this.prodParam.exit(); |
| return this.finishNode(mod, "TSModuleDeclaration"); |
| } |
| |
| break; |
| |
| default: |
| return this.tsParseDeclaration(node, expr.name, false); |
| } |
| } |
| |
| tsParseDeclaration(node, value, next) { |
| switch (value) { |
| case "abstract": |
| if (this.tsCheckLineTerminator(next) && (this.match(76) || tokenIsIdentifier(this.state.type))) { |
| return this.tsParseAbstractDeclaration(node); |
| } |
| |
| break; |
| |
| case "enum": |
| if (next || tokenIsIdentifier(this.state.type)) { |
| if (next) this.next(); |
| return this.tsParseEnumDeclaration(node, false); |
| } |
| |
| break; |
| |
| case "interface": |
| if (this.tsCheckLineTerminator(next) && tokenIsIdentifier(this.state.type)) { |
| return this.tsParseInterfaceDeclaration(node); |
| } |
| |
| break; |
| |
| case "module": |
| if (this.tsCheckLineTerminator(next)) { |
| if (this.match(125)) { |
| return this.tsParseAmbientExternalModuleDeclaration(node); |
| } else if (tokenIsIdentifier(this.state.type)) { |
| return this.tsParseModuleOrNamespaceDeclaration(node); |
| } |
| } |
| |
| break; |
| |
| case "namespace": |
| if (this.tsCheckLineTerminator(next) && tokenIsIdentifier(this.state.type)) { |
| return this.tsParseModuleOrNamespaceDeclaration(node); |
| } |
| |
| break; |
| |
| case "type": |
| if (this.tsCheckLineTerminator(next) && tokenIsIdentifier(this.state.type)) { |
| return this.tsParseTypeAliasDeclaration(node); |
| } |
| |
| break; |
| } |
| } |
| |
| tsCheckLineTerminator(next) { |
| if (next) { |
| if (this.hasFollowingLineBreak()) return false; |
| this.next(); |
| return true; |
| } |
| |
| return !this.isLineTerminator(); |
| } |
| |
| tsTryParseGenericAsyncArrowFunction(startPos, startLoc) { |
| if (!this.match(45)) { |
| return undefined; |
| } |
| |
| const oldMaybeInArrowParameters = this.state.maybeInArrowParameters; |
| this.state.maybeInArrowParameters = true; |
| const res = this.tsTryParseAndCatch(() => { |
| const node = this.startNodeAt(startPos, startLoc); |
| node.typeParameters = this.tsParseTypeParameters(); |
| super.parseFunctionParams(node); |
| node.returnType = this.tsTryParseTypeOrTypePredicateAnnotation(); |
| this.expect(19); |
| return node; |
| }); |
| this.state.maybeInArrowParameters = oldMaybeInArrowParameters; |
| |
| if (!res) { |
| return undefined; |
| } |
| |
| return this.parseArrowExpression(res, null, true); |
| } |
| |
| tsParseTypeArguments() { |
| const node = this.startNode(); |
| node.params = this.tsInType(() => this.tsInNoContext(() => { |
| this.expect(45); |
| return this.tsParseDelimitedList("TypeParametersOrArguments", this.tsParseType.bind(this)); |
| })); |
| |
| if (node.params.length === 0) { |
| this.raise(node.start, TSErrors.EmptyTypeArguments); |
| } |
| |
| this.expect(46); |
| return this.finishNode(node, "TSTypeParameterInstantiation"); |
| } |
| |
| tsIsDeclarationStart() { |
| return tokenIsTSDeclarationStart(this.state.type); |
| } |
| |
| isExportDefaultSpecifier() { |
| if (this.tsIsDeclarationStart()) return false; |
| return super.isExportDefaultSpecifier(); |
| } |
| |
| parseAssignableListItem(allowModifiers, decorators) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| let accessibility; |
| let readonly = false; |
| let override = false; |
| |
| if (allowModifiers !== undefined) { |
| const modified = {}; |
| this.tsParseModifiers(modified, ["public", "private", "protected", "override", "readonly"]); |
| accessibility = modified.accessibility; |
| override = modified.override; |
| readonly = modified.readonly; |
| |
| if (allowModifiers === false && (accessibility || readonly || override)) { |
| this.raise(startPos, TSErrors.UnexpectedParameterModifier); |
| } |
| } |
| |
| const left = this.parseMaybeDefault(); |
| this.parseAssignableListItemTypes(left); |
| const elt = this.parseMaybeDefault(left.start, left.loc.start, left); |
| |
| if (accessibility || readonly || override) { |
| const pp = this.startNodeAt(startPos, startLoc); |
| |
| if (decorators.length) { |
| pp.decorators = decorators; |
| } |
| |
| if (accessibility) pp.accessibility = accessibility; |
| if (readonly) pp.readonly = readonly; |
| if (override) pp.override = override; |
| |
| if (elt.type !== "Identifier" && elt.type !== "AssignmentPattern") { |
| this.raise(pp.start, TSErrors.UnsupportedParameterPropertyKind); |
| } |
| |
| pp.parameter = elt; |
| return this.finishNode(pp, "TSParameterProperty"); |
| } |
| |
| if (decorators.length) { |
| left.decorators = decorators; |
| } |
| |
| return elt; |
| } |
| |
| parseFunctionBodyAndFinish(node, type, isMethod = false) { |
| if (this.match(14)) { |
| node.returnType = this.tsParseTypeOrTypePredicateAnnotation(14); |
| } |
| |
| const bodilessType = type === "FunctionDeclaration" ? "TSDeclareFunction" : type === "ClassMethod" || type === "ClassPrivateMethod" ? "TSDeclareMethod" : undefined; |
| |
| if (bodilessType && !this.match(5) && this.isLineTerminator()) { |
| this.finishNode(node, bodilessType); |
| return; |
| } |
| |
| if (bodilessType === "TSDeclareFunction" && this.state.isAmbientContext) { |
| this.raise(node.start, TSErrors.DeclareFunctionHasImplementation); |
| |
| if (node.declare) { |
| super.parseFunctionBodyAndFinish(node, bodilessType, isMethod); |
| return; |
| } |
| } |
| |
| super.parseFunctionBodyAndFinish(node, type, isMethod); |
| } |
| |
| registerFunctionStatementId(node) { |
| if (!node.body && node.id) { |
| this.checkLVal(node.id, "function name", BIND_TS_AMBIENT); |
| } else { |
| super.registerFunctionStatementId(...arguments); |
| } |
| } |
| |
| tsCheckForInvalidTypeCasts(items) { |
| items.forEach(node => { |
| if ((node == null ? void 0 : node.type) === "TSTypeCastExpression") { |
| this.raise(node.typeAnnotation.start, TSErrors.UnexpectedTypeAnnotation); |
| } |
| }); |
| } |
| |
| toReferencedList(exprList, isInParens) { |
| this.tsCheckForInvalidTypeCasts(exprList); |
| return exprList; |
| } |
| |
| parseArrayLike(...args) { |
| const node = super.parseArrayLike(...args); |
| |
| if (node.type === "ArrayExpression") { |
| this.tsCheckForInvalidTypeCasts(node.elements); |
| } |
| |
| return node; |
| } |
| |
| parseSubscript(base, startPos, startLoc, noCalls, state) { |
| if (!this.hasPrecedingLineBreak() && this.match(35)) { |
| this.state.canStartJSXElement = false; |
| this.next(); |
| const nonNullExpression = this.startNodeAt(startPos, startLoc); |
| nonNullExpression.expression = base; |
| return this.finishNode(nonNullExpression, "TSNonNullExpression"); |
| } |
| |
| let isOptionalCall = false; |
| |
| if (this.match(18) && this.lookaheadCharCode() === 60) { |
| if (noCalls) { |
| state.stop = true; |
| return base; |
| } |
| |
| state.optionalChainMember = isOptionalCall = true; |
| this.next(); |
| } |
| |
| if (this.match(45)) { |
| let missingParenErrorPos; |
| const result = this.tsTryParseAndCatch(() => { |
| if (!noCalls && this.atPossibleAsyncArrow(base)) { |
| const asyncArrowFn = this.tsTryParseGenericAsyncArrowFunction(startPos, startLoc); |
| |
| if (asyncArrowFn) { |
| return asyncArrowFn; |
| } |
| } |
| |
| const node = this.startNodeAt(startPos, startLoc); |
| node.callee = base; |
| const typeArguments = this.tsParseTypeArguments(); |
| |
| if (typeArguments) { |
| if (isOptionalCall && !this.match(10)) { |
| missingParenErrorPos = this.state.pos; |
| this.unexpected(); |
| } |
| |
| if (!noCalls && this.eat(10)) { |
| node.arguments = this.parseCallExpressionArguments(11, false); |
| this.tsCheckForInvalidTypeCasts(node.arguments); |
| node.typeParameters = typeArguments; |
| |
| if (state.optionalChainMember) { |
| node.optional = isOptionalCall; |
| } |
| |
| return this.finishCallExpression(node, state.optionalChainMember); |
| } else if (tokenIsTemplate(this.state.type)) { |
| const result = this.parseTaggedTemplateExpression(base, startPos, startLoc, state); |
| result.typeParameters = typeArguments; |
| return result; |
| } |
| } |
| |
| this.unexpected(); |
| }); |
| |
| if (missingParenErrorPos) { |
| this.unexpected(missingParenErrorPos, 10); |
| } |
| |
| if (result) return result; |
| } |
| |
| return super.parseSubscript(base, startPos, startLoc, noCalls, state); |
| } |
| |
| parseNewArguments(node) { |
| if (this.match(45)) { |
| const typeParameters = this.tsTryParseAndCatch(() => { |
| const args = this.tsParseTypeArguments(); |
| if (!this.match(10)) this.unexpected(); |
| return args; |
| }); |
| |
| if (typeParameters) { |
| node.typeParameters = typeParameters; |
| } |
| } |
| |
| super.parseNewArguments(node); |
| } |
| |
| parseExprOp(left, leftStartPos, leftStartLoc, minPrec) { |
| if (tokenOperatorPrecedence(54) > minPrec && !this.hasPrecedingLineBreak() && this.isContextual(89)) { |
| const node = this.startNodeAt(leftStartPos, leftStartLoc); |
| node.expression = left; |
| |
| const _const = this.tsTryNextParseConstantContext(); |
| |
| if (_const) { |
| node.typeAnnotation = _const; |
| } else { |
| node.typeAnnotation = this.tsNextThenParseType(); |
| } |
| |
| this.finishNode(node, "TSAsExpression"); |
| this.reScan_lt_gt(); |
| return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec); |
| } |
| |
| return super.parseExprOp(left, leftStartPos, leftStartLoc, minPrec); |
| } |
| |
| checkReservedWord(word, startLoc, checkKeywords, isBinding) {} |
| |
| checkDuplicateExports() {} |
| |
| parseImport(node) { |
| node.importKind = "value"; |
| |
| if (tokenIsIdentifier(this.state.type) || this.match(51) || this.match(5)) { |
| let ahead = this.lookahead(); |
| |
| if (this.isContextual(122) && ahead.type !== 12 && ahead.type !== 93 && ahead.type !== 29) { |
| node.importKind = "type"; |
| this.next(); |
| ahead = this.lookahead(); |
| } |
| |
| if (tokenIsIdentifier(this.state.type) && ahead.type === 29) { |
| return this.tsParseImportEqualsDeclaration(node); |
| } |
| } |
| |
| const importNode = super.parseImport(node); |
| |
| if (importNode.importKind === "type" && importNode.specifiers.length > 1 && importNode.specifiers[0].type === "ImportDefaultSpecifier") { |
| this.raise(importNode.start, TSErrors.TypeImportCannotSpecifyDefaultAndNamed); |
| } |
| |
| return importNode; |
| } |
| |
| parseExport(node) { |
| if (this.match(79)) { |
| this.next(); |
| |
| if (this.isContextual(122) && this.lookaheadCharCode() !== 61) { |
| node.importKind = "type"; |
| this.next(); |
| } else { |
| node.importKind = "value"; |
| } |
| |
| return this.tsParseImportEqualsDeclaration(node, true); |
| } else if (this.eat(29)) { |
| const assign = node; |
| assign.expression = this.parseExpression(); |
| this.semicolon(); |
| return this.finishNode(assign, "TSExportAssignment"); |
| } else if (this.eatContextual(89)) { |
| const decl = node; |
| this.expectContextual(120); |
| decl.id = this.parseIdentifier(); |
| this.semicolon(); |
| return this.finishNode(decl, "TSNamespaceExportDeclaration"); |
| } else { |
| if (this.isContextual(122) && this.lookahead().type === 5) { |
| this.next(); |
| node.exportKind = "type"; |
| } else { |
| node.exportKind = "value"; |
| } |
| |
| return super.parseExport(node); |
| } |
| } |
| |
| isAbstractClass() { |
| return this.isContextual(116) && this.lookahead().type === 76; |
| } |
| |
| parseExportDefaultExpression() { |
| if (this.isAbstractClass()) { |
| const cls = this.startNode(); |
| this.next(); |
| cls.abstract = true; |
| this.parseClass(cls, true, true); |
| return cls; |
| } |
| |
| if (this.match(121)) { |
| const interfaceNode = this.startNode(); |
| this.next(); |
| const result = this.tsParseInterfaceDeclaration(interfaceNode); |
| if (result) return result; |
| } |
| |
| return super.parseExportDefaultExpression(); |
| } |
| |
| parseStatementContent(context, topLevel) { |
| if (this.state.type === 71) { |
| const ahead = this.lookahead(); |
| |
| if (ahead.type === 118) { |
| const node = this.startNode(); |
| this.next(); |
| this.expectContextual(118); |
| return this.tsParseEnumDeclaration(node, true); |
| } |
| } |
| |
| return super.parseStatementContent(context, topLevel); |
| } |
| |
| parseAccessModifier() { |
| return this.tsParseModifier(["public", "protected", "private"]); |
| } |
| |
| tsHasSomeModifiers(member, modifiers) { |
| return modifiers.some(modifier => { |
| if (tsIsAccessModifier(modifier)) { |
| return member.accessibility === modifier; |
| } |
| |
| return !!member[modifier]; |
| }); |
| } |
| |
| tsIsStartOfStaticBlocks() { |
| return this.isContextual(100) && this.lookaheadCharCode() === 123; |
| } |
| |
| parseClassMember(classBody, member, state) { |
| const modifiers = ["declare", "private", "public", "protected", "override", "abstract", "readonly", "static"]; |
| this.tsParseModifiers(member, modifiers, undefined, undefined, true); |
| |
| const callParseClassMemberWithIsStatic = () => { |
| if (this.tsIsStartOfStaticBlocks()) { |
| this.next(); |
| this.next(); |
| |
| if (this.tsHasSomeModifiers(member, modifiers)) { |
| this.raise(this.state.pos, TSErrors.StaticBlockCannotHaveModifier); |
| } |
| |
| this.parseClassStaticBlock(classBody, member); |
| } else { |
| this.parseClassMemberWithIsStatic(classBody, member, state, !!member.static); |
| } |
| }; |
| |
| if (member.declare) { |
| this.tsInAmbientContext(callParseClassMemberWithIsStatic); |
| } else { |
| callParseClassMemberWithIsStatic(); |
| } |
| } |
| |
| parseClassMemberWithIsStatic(classBody, member, state, isStatic) { |
| const idx = this.tsTryParseIndexSignature(member); |
| |
| if (idx) { |
| classBody.body.push(idx); |
| |
| if (member.abstract) { |
| this.raise(member.start, TSErrors.IndexSignatureHasAbstract); |
| } |
| |
| if (member.accessibility) { |
| this.raise(member.start, TSErrors.IndexSignatureHasAccessibility, member.accessibility); |
| } |
| |
| if (member.declare) { |
| this.raise(member.start, TSErrors.IndexSignatureHasDeclare); |
| } |
| |
| if (member.override) { |
| this.raise(member.start, TSErrors.IndexSignatureHasOverride); |
| } |
| |
| return; |
| } |
| |
| if (!this.state.inAbstractClass && member.abstract) { |
| this.raise(member.start, TSErrors.NonAbstractClassHasAbstractMethod); |
| } |
| |
| if (member.override) { |
| if (!state.hadSuperClass) { |
| this.raise(member.start, TSErrors.OverrideNotInSubClass); |
| } |
| } |
| |
| super.parseClassMemberWithIsStatic(classBody, member, state, isStatic); |
| } |
| |
| parsePostMemberNameModifiers(methodOrProp) { |
| const optional = this.eat(17); |
| if (optional) methodOrProp.optional = true; |
| |
| if (methodOrProp.readonly && this.match(10)) { |
| this.raise(methodOrProp.start, TSErrors.ClassMethodHasReadonly); |
| } |
| |
| if (methodOrProp.declare && this.match(10)) { |
| this.raise(methodOrProp.start, TSErrors.ClassMethodHasDeclare); |
| } |
| } |
| |
| parseExpressionStatement(node, expr) { |
| const decl = expr.type === "Identifier" ? this.tsParseExpressionStatement(node, expr) : undefined; |
| return decl || super.parseExpressionStatement(node, expr); |
| } |
| |
| shouldParseExportDeclaration() { |
| if (this.tsIsDeclarationStart()) return true; |
| return super.shouldParseExportDeclaration(); |
| } |
| |
| parseConditional(expr, startPos, startLoc, refExpressionErrors) { |
| if (!this.state.maybeInArrowParameters || !this.match(17)) { |
| return super.parseConditional(expr, startPos, startLoc, refExpressionErrors); |
| } |
| |
| const result = this.tryParse(() => super.parseConditional(expr, startPos, startLoc)); |
| |
| if (!result.node) { |
| if (result.error) { |
| super.setOptionalParametersError(refExpressionErrors, result.error); |
| } |
| |
| return expr; |
| } |
| |
| if (result.error) this.state = result.failState; |
| return result.node; |
| } |
| |
| parseParenItem(node, startPos, startLoc) { |
| node = super.parseParenItem(node, startPos, startLoc); |
| |
| if (this.eat(17)) { |
| node.optional = true; |
| this.resetEndLocation(node); |
| } |
| |
| if (this.match(14)) { |
| const typeCastNode = this.startNodeAt(startPos, startLoc); |
| typeCastNode.expression = node; |
| typeCastNode.typeAnnotation = this.tsParseTypeAnnotation(); |
| return this.finishNode(typeCastNode, "TSTypeCastExpression"); |
| } |
| |
| return node; |
| } |
| |
| parseExportDeclaration(node) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| const isDeclare = this.eatContextual(117); |
| |
| if (isDeclare && (this.isContextual(117) || !this.shouldParseExportDeclaration())) { |
| throw this.raise(this.state.start, TSErrors.ExpectedAmbientAfterExportDeclare); |
| } |
| |
| let declaration; |
| |
| if (tokenIsIdentifier(this.state.type)) { |
| declaration = this.tsTryParseExportDeclaration(); |
| } |
| |
| if (!declaration) { |
| declaration = super.parseExportDeclaration(node); |
| } |
| |
| if (declaration && (declaration.type === "TSInterfaceDeclaration" || declaration.type === "TSTypeAliasDeclaration" || isDeclare)) { |
| node.exportKind = "type"; |
| } |
| |
| if (declaration && isDeclare) { |
| this.resetStartLocation(declaration, startPos, startLoc); |
| declaration.declare = true; |
| } |
| |
| return declaration; |
| } |
| |
| parseClassId(node, isStatement, optionalId) { |
| if ((!isStatement || optionalId) && this.isContextual(106)) { |
| return; |
| } |
| |
| super.parseClassId(node, isStatement, optionalId, node.declare ? BIND_TS_AMBIENT : BIND_CLASS); |
| const typeParameters = this.tsTryParseTypeParameters(); |
| if (typeParameters) node.typeParameters = typeParameters; |
| } |
| |
| parseClassPropertyAnnotation(node) { |
| if (!node.optional && this.eat(35)) { |
| node.definite = true; |
| } |
| |
| const type = this.tsTryParseTypeAnnotation(); |
| if (type) node.typeAnnotation = type; |
| } |
| |
| parseClassProperty(node) { |
| this.parseClassPropertyAnnotation(node); |
| |
| if (this.state.isAmbientContext && this.match(29)) { |
| this.raise(this.state.start, TSErrors.DeclareClassFieldHasInitializer); |
| } |
| |
| if (node.abstract && this.match(29)) { |
| const { |
| key |
| } = node; |
| this.raise(this.state.start, TSErrors.AbstractPropertyHasInitializer, key.type === "Identifier" && !node.computed ? key.name : `[${this.input.slice(key.start, key.end)}]`); |
| } |
| |
| return super.parseClassProperty(node); |
| } |
| |
| parseClassPrivateProperty(node) { |
| if (node.abstract) { |
| this.raise(node.start, TSErrors.PrivateElementHasAbstract); |
| } |
| |
| if (node.accessibility) { |
| this.raise(node.start, TSErrors.PrivateElementHasAccessibility, node.accessibility); |
| } |
| |
| this.parseClassPropertyAnnotation(node); |
| return super.parseClassPrivateProperty(node); |
| } |
| |
| pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper) { |
| const typeParameters = this.tsTryParseTypeParameters(); |
| |
| if (typeParameters && isConstructor) { |
| this.raise(typeParameters.start, TSErrors.ConstructorHasTypeParameters); |
| } |
| |
| if (method.declare && (method.kind === "get" || method.kind === "set")) { |
| this.raise(method.start, TSErrors.DeclareAccessor, method.kind); |
| } |
| |
| if (typeParameters) method.typeParameters = typeParameters; |
| super.pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper); |
| } |
| |
| pushClassPrivateMethod(classBody, method, isGenerator, isAsync) { |
| const typeParameters = this.tsTryParseTypeParameters(); |
| if (typeParameters) method.typeParameters = typeParameters; |
| super.pushClassPrivateMethod(classBody, method, isGenerator, isAsync); |
| } |
| |
| declareClassPrivateMethodInScope(node, kind) { |
| if (node.type === "TSDeclareMethod") return; |
| if (node.type === "MethodDefinition" && !node.value.body) return; |
| super.declareClassPrivateMethodInScope(node, kind); |
| } |
| |
| parseClassSuper(node) { |
| super.parseClassSuper(node); |
| |
| if (node.superClass && this.match(45)) { |
| node.superTypeParameters = this.tsParseTypeArguments(); |
| } |
| |
| if (this.eatContextual(106)) { |
| node.implements = this.tsParseHeritageClause("implements"); |
| } |
| } |
| |
| parseObjPropValue(prop, ...args) { |
| const typeParameters = this.tsTryParseTypeParameters(); |
| if (typeParameters) prop.typeParameters = typeParameters; |
| super.parseObjPropValue(prop, ...args); |
| } |
| |
| parseFunctionParams(node, allowModifiers) { |
| const typeParameters = this.tsTryParseTypeParameters(); |
| if (typeParameters) node.typeParameters = typeParameters; |
| super.parseFunctionParams(node, allowModifiers); |
| } |
| |
| parseVarId(decl, kind) { |
| super.parseVarId(decl, kind); |
| |
| if (decl.id.type === "Identifier" && !this.hasPrecedingLineBreak() && this.eat(35)) { |
| decl.definite = true; |
| } |
| |
| const type = this.tsTryParseTypeAnnotation(); |
| |
| if (type) { |
| decl.id.typeAnnotation = type; |
| this.resetEndLocation(decl.id); |
| } |
| } |
| |
| parseAsyncArrowFromCallExpression(node, call) { |
| if (this.match(14)) { |
| node.returnType = this.tsParseTypeAnnotation(); |
| } |
| |
| return super.parseAsyncArrowFromCallExpression(node, call); |
| } |
| |
| parseMaybeAssign(...args) { |
| var _jsx, _jsx2, _typeCast, _jsx3, _typeCast2, _jsx4, _typeCast3; |
| |
| let state; |
| let jsx; |
| let typeCast; |
| |
| if (this.hasPlugin("jsx") && (this.match(134) || this.match(45))) { |
| state = this.state.clone(); |
| jsx = this.tryParse(() => super.parseMaybeAssign(...args), state); |
| if (!jsx.error) return jsx.node; |
| const { |
| context |
| } = this.state; |
| const currentContext = context[context.length - 1]; |
| |
| if (currentContext === types.j_oTag || currentContext === types.j_expr) { |
| context.pop(); |
| } |
| } |
| |
| if (!((_jsx = jsx) != null && _jsx.error) && !this.match(45)) { |
| return super.parseMaybeAssign(...args); |
| } |
| |
| let typeParameters; |
| state = state || this.state.clone(); |
| const arrow = this.tryParse(abort => { |
| var _expr$extra, _typeParameters; |
| |
| typeParameters = this.tsParseTypeParameters(); |
| const expr = super.parseMaybeAssign(...args); |
| |
| if (expr.type !== "ArrowFunctionExpression" || (_expr$extra = expr.extra) != null && _expr$extra.parenthesized) { |
| abort(); |
| } |
| |
| if (((_typeParameters = typeParameters) == null ? void 0 : _typeParameters.params.length) !== 0) { |
| this.resetStartLocationFromNode(expr, typeParameters); |
| } |
| |
| expr.typeParameters = typeParameters; |
| return expr; |
| }, state); |
| |
| if (!arrow.error && !arrow.aborted) { |
| if (typeParameters) this.reportReservedArrowTypeParam(typeParameters); |
| return arrow.node; |
| } |
| |
| if (!jsx) { |
| assert(!this.hasPlugin("jsx")); |
| typeCast = this.tryParse(() => super.parseMaybeAssign(...args), state); |
| if (!typeCast.error) return typeCast.node; |
| } |
| |
| if ((_jsx2 = jsx) != null && _jsx2.node) { |
| this.state = jsx.failState; |
| return jsx.node; |
| } |
| |
| if (arrow.node) { |
| this.state = arrow.failState; |
| if (typeParameters) this.reportReservedArrowTypeParam(typeParameters); |
| return arrow.node; |
| } |
| |
| if ((_typeCast = typeCast) != null && _typeCast.node) { |
| this.state = typeCast.failState; |
| return typeCast.node; |
| } |
| |
| if ((_jsx3 = jsx) != null && _jsx3.thrown) throw jsx.error; |
| if (arrow.thrown) throw arrow.error; |
| if ((_typeCast2 = typeCast) != null && _typeCast2.thrown) throw typeCast.error; |
| throw ((_jsx4 = jsx) == null ? void 0 : _jsx4.error) || arrow.error || ((_typeCast3 = typeCast) == null ? void 0 : _typeCast3.error); |
| } |
| |
| reportReservedArrowTypeParam(node) { |
| var _node$extra; |
| |
| if (node.params.length === 1 && !((_node$extra = node.extra) != null && _node$extra.trailingComma) && this.getPluginOption("typescript", "disallowAmbiguousJSXLike")) { |
| this.raise(node.start, TSErrors.ReservedArrowTypeParam); |
| } |
| } |
| |
| parseMaybeUnary(refExpressionErrors) { |
| if (!this.hasPlugin("jsx") && this.match(45)) { |
| return this.tsParseTypeAssertion(); |
| } else { |
| return super.parseMaybeUnary(refExpressionErrors); |
| } |
| } |
| |
| parseArrow(node) { |
| if (this.match(14)) { |
| const result = this.tryParse(abort => { |
| const returnType = this.tsParseTypeOrTypePredicateAnnotation(14); |
| if (this.canInsertSemicolon() || !this.match(19)) abort(); |
| return returnType; |
| }); |
| if (result.aborted) return; |
| |
| if (!result.thrown) { |
| if (result.error) this.state = result.failState; |
| node.returnType = result.node; |
| } |
| } |
| |
| return super.parseArrow(node); |
| } |
| |
| parseAssignableListItemTypes(param) { |
| if (this.eat(17)) { |
| if (param.type !== "Identifier" && !this.state.isAmbientContext && !this.state.inType) { |
| this.raise(param.start, TSErrors.PatternIsOptional); |
| } |
| |
| param.optional = true; |
| } |
| |
| const type = this.tsTryParseTypeAnnotation(); |
| if (type) param.typeAnnotation = type; |
| this.resetEndLocation(param); |
| return param; |
| } |
| |
| isAssignable(node, isBinding) { |
| switch (node.type) { |
| case "TSTypeCastExpression": |
| return this.isAssignable(node.expression, isBinding); |
| |
| case "TSParameterProperty": |
| return true; |
| |
| default: |
| return super.isAssignable(node, isBinding); |
| } |
| } |
| |
| toAssignable(node, isLHS = false) { |
| switch (node.type) { |
| case "TSTypeCastExpression": |
| return super.toAssignable(this.typeCastToParameter(node), isLHS); |
| |
| case "TSParameterProperty": |
| return super.toAssignable(node, isLHS); |
| |
| case "ParenthesizedExpression": |
| return this.toAssignableParenthesizedExpression(node, isLHS); |
| |
| case "TSAsExpression": |
| case "TSNonNullExpression": |
| case "TSTypeAssertion": |
| node.expression = this.toAssignable(node.expression, isLHS); |
| return node; |
| |
| default: |
| return super.toAssignable(node, isLHS); |
| } |
| } |
| |
| toAssignableParenthesizedExpression(node, isLHS) { |
| switch (node.expression.type) { |
| case "TSAsExpression": |
| case "TSNonNullExpression": |
| case "TSTypeAssertion": |
| case "ParenthesizedExpression": |
| node.expression = this.toAssignable(node.expression, isLHS); |
| return node; |
| |
| default: |
| return super.toAssignable(node, isLHS); |
| } |
| } |
| |
| checkLVal(expr, contextDescription, ...args) { |
| var _expr$extra2; |
| |
| switch (expr.type) { |
| case "TSTypeCastExpression": |
| return; |
| |
| case "TSParameterProperty": |
| this.checkLVal(expr.parameter, "parameter property", ...args); |
| return; |
| |
| case "TSAsExpression": |
| case "TSTypeAssertion": |
| if (!args[0] && contextDescription !== "parenthesized expression" && !((_expr$extra2 = expr.extra) != null && _expr$extra2.parenthesized)) { |
| this.raise(expr.start, ErrorMessages.InvalidLhs, contextDescription); |
| break; |
| } |
| |
| this.checkLVal(expr.expression, "parenthesized expression", ...args); |
| return; |
| |
| case "TSNonNullExpression": |
| this.checkLVal(expr.expression, contextDescription, ...args); |
| return; |
| |
| default: |
| super.checkLVal(expr, contextDescription, ...args); |
| return; |
| } |
| } |
| |
| parseBindingAtom() { |
| switch (this.state.type) { |
| case 74: |
| return this.parseIdentifier(true); |
| |
| default: |
| return super.parseBindingAtom(); |
| } |
| } |
| |
| parseMaybeDecoratorArguments(expr) { |
| if (this.match(45)) { |
| const typeArguments = this.tsParseTypeArguments(); |
| |
| if (this.match(10)) { |
| const call = super.parseMaybeDecoratorArguments(expr); |
| call.typeParameters = typeArguments; |
| return call; |
| } |
| |
| this.unexpected(this.state.start, 10); |
| } |
| |
| return super.parseMaybeDecoratorArguments(expr); |
| } |
| |
| checkCommaAfterRest(close) { |
| if (this.state.isAmbientContext && this.match(12) && this.lookaheadCharCode() === close) { |
| this.next(); |
| } else { |
| super.checkCommaAfterRest(close); |
| } |
| } |
| |
| isClassMethod() { |
| return this.match(45) || super.isClassMethod(); |
| } |
| |
| isClassProperty() { |
| return this.match(35) || this.match(14) || super.isClassProperty(); |
| } |
| |
| parseMaybeDefault(...args) { |
| const node = super.parseMaybeDefault(...args); |
| |
| if (node.type === "AssignmentPattern" && node.typeAnnotation && node.right.start < node.typeAnnotation.start) { |
| this.raise(node.typeAnnotation.start, TSErrors.TypeAnnotationAfterAssign); |
| } |
| |
| return node; |
| } |
| |
| getTokenFromCode(code) { |
| if (this.state.inType) { |
| if (code === 62) { |
| return this.finishOp(46, 1); |
| } |
| |
| if (code === 60) { |
| return this.finishOp(45, 1); |
| } |
| } |
| |
| return super.getTokenFromCode(code); |
| } |
| |
| reScan_lt_gt() { |
| const { |
| type |
| } = this.state; |
| |
| if (type === 45) { |
| this.state.pos -= 1; |
| this.readToken_lt(); |
| } else if (type === 46) { |
| this.state.pos -= 1; |
| this.readToken_gt(); |
| } |
| } |
| |
| toAssignableList(exprList) { |
| for (let i = 0; i < exprList.length; i++) { |
| const expr = exprList[i]; |
| if (!expr) continue; |
| |
| switch (expr.type) { |
| case "TSTypeCastExpression": |
| exprList[i] = this.typeCastToParameter(expr); |
| break; |
| |
| case "TSAsExpression": |
| case "TSTypeAssertion": |
| if (!this.state.maybeInArrowParameters) { |
| exprList[i] = this.typeCastToParameter(expr); |
| } else { |
| this.raise(expr.start, TSErrors.UnexpectedTypeCastInParameter); |
| } |
| |
| break; |
| } |
| } |
| |
| return super.toAssignableList(...arguments); |
| } |
| |
| typeCastToParameter(node) { |
| node.expression.typeAnnotation = node.typeAnnotation; |
| this.resetEndLocation(node.expression, node.typeAnnotation.end, node.typeAnnotation.loc.end); |
| return node.expression; |
| } |
| |
| shouldParseArrow(params) { |
| if (this.match(14)) { |
| return params.every(expr => this.isAssignable(expr, true)); |
| } |
| |
| return super.shouldParseArrow(params); |
| } |
| |
| shouldParseAsyncArrow() { |
| return this.match(14) || super.shouldParseAsyncArrow(); |
| } |
| |
| canHaveLeadingDecorator() { |
| return super.canHaveLeadingDecorator() || this.isAbstractClass(); |
| } |
| |
| jsxParseOpeningElementAfterName(node) { |
| if (this.match(45)) { |
| const typeArguments = this.tsTryParseAndCatch(() => this.tsParseTypeArguments()); |
| if (typeArguments) node.typeParameters = typeArguments; |
| } |
| |
| return super.jsxParseOpeningElementAfterName(node); |
| } |
| |
| getGetterSetterExpectedParamCount(method) { |
| const baseCount = super.getGetterSetterExpectedParamCount(method); |
| const params = this.getObjectOrClassMethodParams(method); |
| const firstParam = params[0]; |
| const hasContextParam = firstParam && this.isThisParam(firstParam); |
| return hasContextParam ? baseCount + 1 : baseCount; |
| } |
| |
| parseCatchClauseParam() { |
| const param = super.parseCatchClauseParam(); |
| const type = this.tsTryParseTypeAnnotation(); |
| |
| if (type) { |
| param.typeAnnotation = type; |
| this.resetEndLocation(param); |
| } |
| |
| return param; |
| } |
| |
| tsInAmbientContext(cb) { |
| const oldIsAmbientContext = this.state.isAmbientContext; |
| this.state.isAmbientContext = true; |
| |
| try { |
| return cb(); |
| } finally { |
| this.state.isAmbientContext = oldIsAmbientContext; |
| } |
| } |
| |
| parseClass(node, ...args) { |
| const oldInAbstractClass = this.state.inAbstractClass; |
| this.state.inAbstractClass = !!node.abstract; |
| |
| try { |
| return super.parseClass(node, ...args); |
| } finally { |
| this.state.inAbstractClass = oldInAbstractClass; |
| } |
| } |
| |
| tsParseAbstractDeclaration(node) { |
| if (this.match(76)) { |
| node.abstract = true; |
| return this.parseClass(node, true, false); |
| } else if (this.isContextual(121)) { |
| if (!this.hasFollowingLineBreak()) { |
| node.abstract = true; |
| this.raise(node.start, TSErrors.NonClassMethodPropertyHasAbstractModifer); |
| this.next(); |
| return this.tsParseInterfaceDeclaration(node); |
| } |
| } else { |
| this.unexpected(null, 76); |
| } |
| } |
| |
| parseMethod(...args) { |
| const method = super.parseMethod(...args); |
| |
| if (method.abstract) { |
| const hasBody = this.hasPlugin("estree") ? !!method.value.body : !!method.body; |
| |
| if (hasBody) { |
| const { |
| key |
| } = method; |
| this.raise(method.start, TSErrors.AbstractMethodHasImplementation, key.type === "Identifier" && !method.computed ? key.name : `[${this.input.slice(key.start, key.end)}]`); |
| } |
| } |
| |
| return method; |
| } |
| |
| tsParseTypeParameterName() { |
| const typeName = this.parseIdentifier(); |
| return typeName.name; |
| } |
| |
| shouldParseAsAmbientContext() { |
| return !!this.getPluginOption("typescript", "dts"); |
| } |
| |
| parse() { |
| if (this.shouldParseAsAmbientContext()) { |
| this.state.isAmbientContext = true; |
| } |
| |
| return super.parse(); |
| } |
| |
| getExpression() { |
| if (this.shouldParseAsAmbientContext()) { |
| this.state.isAmbientContext = true; |
| } |
| |
| return super.getExpression(); |
| } |
| |
| parseExportSpecifier(node, isString, isInTypeExport, isMaybeTypeOnly) { |
| if (!isString && isMaybeTypeOnly) { |
| this.parseTypeOnlyImportExportSpecifier(node, false, isInTypeExport); |
| return this.finishNode(node, "ExportSpecifier"); |
| } |
| |
| node.exportKind = "value"; |
| return super.parseExportSpecifier(node, isString, isInTypeExport, isMaybeTypeOnly); |
| } |
| |
| parseImportSpecifier(specifier, importedIsString, isInTypeOnlyImport, isMaybeTypeOnly) { |
| if (!importedIsString && isMaybeTypeOnly) { |
| this.parseTypeOnlyImportExportSpecifier(specifier, true, isInTypeOnlyImport); |
| return this.finishNode(specifier, "ImportSpecifier"); |
| } |
| |
| specifier.importKind = "value"; |
| return super.parseImportSpecifier(specifier, importedIsString, isInTypeOnlyImport, isMaybeTypeOnly); |
| } |
| |
| parseTypeOnlyImportExportSpecifier(node, isImport, isInTypeOnlyImportExport) { |
| const leftOfAsKey = isImport ? "imported" : "local"; |
| const rightOfAsKey = isImport ? "local" : "exported"; |
| let leftOfAs = node[leftOfAsKey]; |
| let rightOfAs; |
| let hasTypeSpecifier = false; |
| let canParseAsKeyword = true; |
| const pos = leftOfAs.start; |
| |
| if (this.isContextual(89)) { |
| const firstAs = this.parseIdentifier(); |
| |
| if (this.isContextual(89)) { |
| const secondAs = this.parseIdentifier(); |
| |
| if (tokenIsKeywordOrIdentifier(this.state.type)) { |
| hasTypeSpecifier = true; |
| leftOfAs = firstAs; |
| rightOfAs = this.parseIdentifier(); |
| canParseAsKeyword = false; |
| } else { |
| rightOfAs = secondAs; |
| canParseAsKeyword = false; |
| } |
| } else if (tokenIsKeywordOrIdentifier(this.state.type)) { |
| canParseAsKeyword = false; |
| rightOfAs = this.parseIdentifier(); |
| } else { |
| hasTypeSpecifier = true; |
| leftOfAs = firstAs; |
| } |
| } else if (tokenIsKeywordOrIdentifier(this.state.type)) { |
| hasTypeSpecifier = true; |
| leftOfAs = this.parseIdentifier(); |
| } |
| |
| if (hasTypeSpecifier && isInTypeOnlyImportExport) { |
| this.raise(pos, isImport ? TSErrors.TypeModifierIsUsedInTypeImports : TSErrors.TypeModifierIsUsedInTypeExports); |
| } |
| |
| node[leftOfAsKey] = leftOfAs; |
| node[rightOfAsKey] = rightOfAs; |
| const kindKey = isImport ? "importKind" : "exportKind"; |
| node[kindKey] = hasTypeSpecifier ? "type" : "value"; |
| |
| if (canParseAsKeyword && this.eatContextual(89)) { |
| node[rightOfAsKey] = isImport ? this.parseIdentifier() : this.parseModuleExportName(); |
| } |
| |
| if (!node[rightOfAsKey]) { |
| node[rightOfAsKey] = cloneIdentifier(node[leftOfAsKey]); |
| } |
| |
| if (isImport) { |
| this.checkLVal(node[rightOfAsKey], "import specifier", BIND_LEXICAL); |
| } |
| } |
| |
| }); |
| |
| const PlaceHolderErrors = makeErrorTemplates({ |
| ClassNameIsRequired: "A class name is required." |
| }, ErrorCodes.SyntaxError); |
| var placeholders = (superClass => class extends superClass { |
| parsePlaceholder(expectedNode) { |
| if (this.match(136)) { |
| const node = this.startNode(); |
| this.next(); |
| this.assertNoSpace("Unexpected space in placeholder."); |
| node.name = super.parseIdentifier(true); |
| this.assertNoSpace("Unexpected space in placeholder."); |
| this.expect(136); |
| return this.finishPlaceholder(node, expectedNode); |
| } |
| } |
| |
| finishPlaceholder(node, expectedNode) { |
| const isFinished = !!(node.expectedNode && node.type === "Placeholder"); |
| node.expectedNode = expectedNode; |
| return isFinished ? node : this.finishNode(node, "Placeholder"); |
| } |
| |
| getTokenFromCode(code) { |
| if (code === 37 && this.input.charCodeAt(this.state.pos + 1) === 37) { |
| return this.finishOp(136, 2); |
| } |
| |
| return super.getTokenFromCode(...arguments); |
| } |
| |
| parseExprAtom() { |
| return this.parsePlaceholder("Expression") || super.parseExprAtom(...arguments); |
| } |
| |
| parseIdentifier() { |
| return this.parsePlaceholder("Identifier") || super.parseIdentifier(...arguments); |
| } |
| |
| checkReservedWord(word) { |
| if (word !== undefined) super.checkReservedWord(...arguments); |
| } |
| |
| parseBindingAtom() { |
| return this.parsePlaceholder("Pattern") || super.parseBindingAtom(...arguments); |
| } |
| |
| checkLVal(expr) { |
| if (expr.type !== "Placeholder") super.checkLVal(...arguments); |
| } |
| |
| toAssignable(node) { |
| if (node && node.type === "Placeholder" && node.expectedNode === "Expression") { |
| node.expectedNode = "Pattern"; |
| return node; |
| } |
| |
| return super.toAssignable(...arguments); |
| } |
| |
| isLet(context) { |
| if (super.isLet(context)) { |
| return true; |
| } |
| |
| if (!this.isContextual(95)) { |
| return false; |
| } |
| |
| if (context) return false; |
| const nextToken = this.lookahead(); |
| |
| if (nextToken.type === 136) { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| verifyBreakContinue(node) { |
| if (node.label && node.label.type === "Placeholder") return; |
| super.verifyBreakContinue(...arguments); |
| } |
| |
| parseExpressionStatement(node, expr) { |
| if (expr.type !== "Placeholder" || expr.extra && expr.extra.parenthesized) { |
| return super.parseExpressionStatement(...arguments); |
| } |
| |
| if (this.match(14)) { |
| const stmt = node; |
| stmt.label = this.finishPlaceholder(expr, "Identifier"); |
| this.next(); |
| stmt.body = this.parseStatement("label"); |
| return this.finishNode(stmt, "LabeledStatement"); |
| } |
| |
| this.semicolon(); |
| node.name = expr.name; |
| return this.finishPlaceholder(node, "Statement"); |
| } |
| |
| parseBlock() { |
| return this.parsePlaceholder("BlockStatement") || super.parseBlock(...arguments); |
| } |
| |
| parseFunctionId() { |
| return this.parsePlaceholder("Identifier") || super.parseFunctionId(...arguments); |
| } |
| |
| parseClass(node, isStatement, optionalId) { |
| const type = isStatement ? "ClassDeclaration" : "ClassExpression"; |
| this.next(); |
| this.takeDecorators(node); |
| const oldStrict = this.state.strict; |
| const placeholder = this.parsePlaceholder("Identifier"); |
| |
| if (placeholder) { |
| if (this.match(77) || this.match(136) || this.match(5)) { |
| node.id = placeholder; |
| } else if (optionalId || !isStatement) { |
| node.id = null; |
| node.body = this.finishPlaceholder(placeholder, "ClassBody"); |
| return this.finishNode(node, type); |
| } else { |
| this.unexpected(null, PlaceHolderErrors.ClassNameIsRequired); |
| } |
| } else { |
| this.parseClassId(node, isStatement, optionalId); |
| } |
| |
| this.parseClassSuper(node); |
| node.body = this.parsePlaceholder("ClassBody") || this.parseClassBody(!!node.superClass, oldStrict); |
| return this.finishNode(node, type); |
| } |
| |
| parseExport(node) { |
| const placeholder = this.parsePlaceholder("Identifier"); |
| if (!placeholder) return super.parseExport(...arguments); |
| |
| if (!this.isContextual(93) && !this.match(12)) { |
| node.specifiers = []; |
| node.source = null; |
| node.declaration = this.finishPlaceholder(placeholder, "Declaration"); |
| return this.finishNode(node, "ExportNamedDeclaration"); |
| } |
| |
| this.expectPlugin("exportDefaultFrom"); |
| const specifier = this.startNode(); |
| specifier.exported = placeholder; |
| node.specifiers = [this.finishNode(specifier, "ExportDefaultSpecifier")]; |
| return super.parseExport(node); |
| } |
| |
| isExportDefaultSpecifier() { |
| if (this.match(61)) { |
| const next = this.nextTokenStart(); |
| |
| if (this.isUnparsedContextual(next, "from")) { |
| if (this.input.startsWith(tokenLabelName(136), this.nextTokenStartSince(next + 4))) { |
| return true; |
| } |
| } |
| } |
| |
| return super.isExportDefaultSpecifier(); |
| } |
| |
| maybeParseExportDefaultSpecifier(node) { |
| if (node.specifiers && node.specifiers.length > 0) { |
| return true; |
| } |
| |
| return super.maybeParseExportDefaultSpecifier(...arguments); |
| } |
| |
| checkExport(node) { |
| const { |
| specifiers |
| } = node; |
| |
| if (specifiers != null && specifiers.length) { |
| node.specifiers = specifiers.filter(node => node.exported.type === "Placeholder"); |
| } |
| |
| super.checkExport(node); |
| node.specifiers = specifiers; |
| } |
| |
| parseImport(node) { |
| const placeholder = this.parsePlaceholder("Identifier"); |
| if (!placeholder) return super.parseImport(...arguments); |
| node.specifiers = []; |
| |
| if (!this.isContextual(93) && !this.match(12)) { |
| node.source = this.finishPlaceholder(placeholder, "StringLiteral"); |
| this.semicolon(); |
| return this.finishNode(node, "ImportDeclaration"); |
| } |
| |
| const specifier = this.startNodeAtNode(placeholder); |
| specifier.local = placeholder; |
| this.finishNode(specifier, "ImportDefaultSpecifier"); |
| node.specifiers.push(specifier); |
| |
| if (this.eat(12)) { |
| const hasStarImport = this.maybeParseStarImportSpecifier(node); |
| if (!hasStarImport) this.parseNamedImportSpecifiers(node); |
| } |
| |
| this.expectContextual(93); |
| node.source = this.parseImportSource(); |
| this.semicolon(); |
| return this.finishNode(node, "ImportDeclaration"); |
| } |
| |
| parseImportSource() { |
| return this.parsePlaceholder("StringLiteral") || super.parseImportSource(...arguments); |
| } |
| |
| }); |
| |
| var v8intrinsic = (superClass => class extends superClass { |
| parseV8Intrinsic() { |
| if (this.match(50)) { |
| const v8IntrinsicStart = this.state.start; |
| const node = this.startNode(); |
| this.next(); |
| |
| if (tokenIsIdentifier(this.state.type)) { |
| const name = this.parseIdentifierName(this.state.start); |
| const identifier = this.createIdentifier(node, name); |
| identifier.type = "V8IntrinsicIdentifier"; |
| |
| if (this.match(10)) { |
| return identifier; |
| } |
| } |
| |
| this.unexpected(v8IntrinsicStart); |
| } |
| } |
| |
| parseExprAtom() { |
| return this.parseV8Intrinsic() || super.parseExprAtom(...arguments); |
| } |
| |
| }); |
| |
| function hasPlugin(plugins, expectedConfig) { |
| const [expectedName, expectedOptions] = typeof expectedConfig === "string" ? [expectedConfig, {}] : expectedConfig; |
| const expectedKeys = Object.keys(expectedOptions); |
| const expectedOptionsIsEmpty = expectedKeys.length === 0; |
| return plugins.some(p => { |
| if (typeof p === "string") { |
| return expectedOptionsIsEmpty && p === expectedName; |
| } else { |
| const [pluginName, pluginOptions] = p; |
| |
| if (pluginName !== expectedName) { |
| return false; |
| } |
| |
| for (const key of expectedKeys) { |
| if (pluginOptions[key] !== expectedOptions[key]) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| }); |
| } |
| function getPluginOption(plugins, name, option) { |
| const plugin = plugins.find(plugin => { |
| if (Array.isArray(plugin)) { |
| return plugin[0] === name; |
| } else { |
| return plugin === name; |
| } |
| }); |
| |
| if (plugin && Array.isArray(plugin)) { |
| return plugin[1][option]; |
| } |
| |
| return null; |
| } |
| const PIPELINE_PROPOSALS = ["minimal", "fsharp", "hack", "smart"]; |
| const TOPIC_TOKENS = ["^", "%", "#"]; |
| const RECORD_AND_TUPLE_SYNTAX_TYPES = ["hash", "bar"]; |
| function validatePlugins(plugins) { |
| if (hasPlugin(plugins, "decorators")) { |
| if (hasPlugin(plugins, "decorators-legacy")) { |
| throw new Error("Cannot use the decorators and decorators-legacy plugin together"); |
| } |
| |
| const decoratorsBeforeExport = getPluginOption(plugins, "decorators", "decoratorsBeforeExport"); |
| |
| if (decoratorsBeforeExport == null) { |
| throw new Error("The 'decorators' plugin requires a 'decoratorsBeforeExport' option," + " whose value must be a boolean. If you are migrating from" + " Babylon/Babel 6 or want to use the old decorators proposal, you" + " should use the 'decorators-legacy' plugin instead of 'decorators'."); |
| } else if (typeof decoratorsBeforeExport !== "boolean") { |
| throw new Error("'decoratorsBeforeExport' must be a boolean."); |
| } |
| } |
| |
| if (hasPlugin(plugins, "flow") && hasPlugin(plugins, "typescript")) { |
| throw new Error("Cannot combine flow and typescript plugins."); |
| } |
| |
| if (hasPlugin(plugins, "placeholders") && hasPlugin(plugins, "v8intrinsic")) { |
| throw new Error("Cannot combine placeholders and v8intrinsic plugins."); |
| } |
| |
| if (hasPlugin(plugins, "pipelineOperator")) { |
| const proposal = getPluginOption(plugins, "pipelineOperator", "proposal"); |
| |
| if (!PIPELINE_PROPOSALS.includes(proposal)) { |
| const proposalList = PIPELINE_PROPOSALS.map(p => `"${p}"`).join(", "); |
| throw new Error(`"pipelineOperator" requires "proposal" option whose value must be one of: ${proposalList}.`); |
| } |
| |
| const tupleSyntaxIsHash = hasPlugin(plugins, ["recordAndTuple", { |
| syntaxType: "hash" |
| }]); |
| |
| if (proposal === "hack") { |
| if (hasPlugin(plugins, "placeholders")) { |
| throw new Error("Cannot combine placeholders plugin and Hack-style pipes."); |
| } |
| |
| if (hasPlugin(plugins, "v8intrinsic")) { |
| throw new Error("Cannot combine v8intrinsic plugin and Hack-style pipes."); |
| } |
| |
| const topicToken = getPluginOption(plugins, "pipelineOperator", "topicToken"); |
| |
| if (!TOPIC_TOKENS.includes(topicToken)) { |
| const tokenList = TOPIC_TOKENS.map(t => `"${t}"`).join(", "); |
| throw new Error(`"pipelineOperator" in "proposal": "hack" mode also requires a "topicToken" option whose value must be one of: ${tokenList}.`); |
| } |
| |
| if (topicToken === "#" && tupleSyntaxIsHash) { |
| throw new Error('Plugin conflict between `["pipelineOperator", { proposal: "hack", topicToken: "#" }]` and `["recordAndtuple", { syntaxType: "hash"}]`.'); |
| } |
| } else if (proposal === "smart" && tupleSyntaxIsHash) { |
| throw new Error('Plugin conflict between `["pipelineOperator", { proposal: "smart" }]` and `["recordAndtuple", { syntaxType: "hash"}]`.'); |
| } |
| } |
| |
| if (hasPlugin(plugins, "moduleAttributes")) { |
| { |
| if (hasPlugin(plugins, "importAssertions")) { |
| throw new Error("Cannot combine importAssertions and moduleAttributes plugins."); |
| } |
| |
| const moduleAttributesVerionPluginOption = getPluginOption(plugins, "moduleAttributes", "version"); |
| |
| if (moduleAttributesVerionPluginOption !== "may-2020") { |
| throw new Error("The 'moduleAttributes' plugin requires a 'version' option," + " representing the last proposal update. Currently, the" + " only supported value is 'may-2020'."); |
| } |
| } |
| } |
| |
| if (hasPlugin(plugins, "recordAndTuple") && !RECORD_AND_TUPLE_SYNTAX_TYPES.includes(getPluginOption(plugins, "recordAndTuple", "syntaxType"))) { |
| throw new Error("'recordAndTuple' requires 'syntaxType' option whose value should be one of: " + RECORD_AND_TUPLE_SYNTAX_TYPES.map(p => `'${p}'`).join(", ")); |
| } |
| |
| if (hasPlugin(plugins, "asyncDoExpressions") && !hasPlugin(plugins, "doExpressions")) { |
| const error = new Error("'asyncDoExpressions' requires 'doExpressions', please add 'doExpressions' to parser plugins."); |
| error.missingPlugins = "doExpressions"; |
| throw error; |
| } |
| } |
| const mixinPlugins = { |
| estree, |
| jsx, |
| flow, |
| typescript, |
| v8intrinsic, |
| placeholders |
| }; |
| const mixinPluginNames = Object.keys(mixinPlugins); |
| |
| const defaultOptions = { |
| sourceType: "script", |
| sourceFilename: undefined, |
| startColumn: 0, |
| startLine: 1, |
| allowAwaitOutsideFunction: false, |
| allowReturnOutsideFunction: false, |
| allowImportExportEverywhere: false, |
| allowSuperOutsideMethod: false, |
| allowUndeclaredExports: false, |
| plugins: [], |
| strictMode: null, |
| ranges: false, |
| tokens: false, |
| createParenthesizedExpressions: false, |
| errorRecovery: false, |
| attachComment: true |
| }; |
| function getOptions(opts) { |
| const options = {}; |
| |
| for (const key of Object.keys(defaultOptions)) { |
| options[key] = opts && opts[key] != null ? opts[key] : defaultOptions[key]; |
| } |
| |
| return options; |
| } |
| |
| const unwrapParenthesizedExpression = node => { |
| return node.type === "ParenthesizedExpression" ? unwrapParenthesizedExpression(node.expression) : node; |
| }; |
| |
| class LValParser extends NodeUtils { |
| toAssignable(node, isLHS = false) { |
| var _node$extra, _node$extra3; |
| |
| let parenthesized = undefined; |
| |
| if (node.type === "ParenthesizedExpression" || (_node$extra = node.extra) != null && _node$extra.parenthesized) { |
| parenthesized = unwrapParenthesizedExpression(node); |
| |
| if (isLHS) { |
| if (parenthesized.type === "Identifier") { |
| this.expressionScope.recordParenthesizedIdentifierError(node.start, ErrorMessages.InvalidParenthesizedAssignment); |
| } else if (parenthesized.type !== "MemberExpression") { |
| this.raise(node.start, ErrorMessages.InvalidParenthesizedAssignment); |
| } |
| } else { |
| this.raise(node.start, ErrorMessages.InvalidParenthesizedAssignment); |
| } |
| } |
| |
| switch (node.type) { |
| case "Identifier": |
| case "ObjectPattern": |
| case "ArrayPattern": |
| case "AssignmentPattern": |
| case "RestElement": |
| break; |
| |
| case "ObjectExpression": |
| node.type = "ObjectPattern"; |
| |
| for (let i = 0, length = node.properties.length, last = length - 1; i < length; i++) { |
| var _node$extra2; |
| |
| const prop = node.properties[i]; |
| const isLast = i === last; |
| this.toAssignableObjectExpressionProp(prop, isLast, isLHS); |
| |
| if (isLast && prop.type === "RestElement" && (_node$extra2 = node.extra) != null && _node$extra2.trailingComma) { |
| this.raiseRestNotLast(node.extra.trailingComma); |
| } |
| } |
| |
| break; |
| |
| case "ObjectProperty": |
| this.toAssignable(node.value, isLHS); |
| break; |
| |
| case "SpreadElement": |
| { |
| this.checkToRestConversion(node); |
| node.type = "RestElement"; |
| const arg = node.argument; |
| this.toAssignable(arg, isLHS); |
| break; |
| } |
| |
| case "ArrayExpression": |
| node.type = "ArrayPattern"; |
| this.toAssignableList(node.elements, (_node$extra3 = node.extra) == null ? void 0 : _node$extra3.trailingComma, isLHS); |
| break; |
| |
| case "AssignmentExpression": |
| if (node.operator !== "=") { |
| this.raise(node.left.end, ErrorMessages.MissingEqInAssignment); |
| } |
| |
| node.type = "AssignmentPattern"; |
| delete node.operator; |
| this.toAssignable(node.left, isLHS); |
| break; |
| |
| case "ParenthesizedExpression": |
| this.toAssignable(parenthesized, isLHS); |
| break; |
| } |
| |
| return node; |
| } |
| |
| toAssignableObjectExpressionProp(prop, isLast, isLHS) { |
| if (prop.type === "ObjectMethod") { |
| const error = prop.kind === "get" || prop.kind === "set" ? ErrorMessages.PatternHasAccessor : ErrorMessages.PatternHasMethod; |
| this.raise(prop.key.start, error); |
| } else if (prop.type === "SpreadElement" && !isLast) { |
| this.raiseRestNotLast(prop.start); |
| } else { |
| this.toAssignable(prop, isLHS); |
| } |
| } |
| |
| toAssignableList(exprList, trailingCommaPos, isLHS) { |
| let end = exprList.length; |
| |
| if (end) { |
| const last = exprList[end - 1]; |
| |
| if ((last == null ? void 0 : last.type) === "RestElement") { |
| --end; |
| } else if ((last == null ? void 0 : last.type) === "SpreadElement") { |
| last.type = "RestElement"; |
| let arg = last.argument; |
| this.toAssignable(arg, isLHS); |
| arg = unwrapParenthesizedExpression(arg); |
| |
| if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern" && arg.type !== "ObjectPattern") { |
| this.unexpected(arg.start); |
| } |
| |
| if (trailingCommaPos) { |
| this.raiseTrailingCommaAfterRest(trailingCommaPos); |
| } |
| |
| --end; |
| } |
| } |
| |
| for (let i = 0; i < end; i++) { |
| const elt = exprList[i]; |
| |
| if (elt) { |
| this.toAssignable(elt, isLHS); |
| |
| if (elt.type === "RestElement") { |
| this.raiseRestNotLast(elt.start); |
| } |
| } |
| } |
| |
| return exprList; |
| } |
| |
| isAssignable(node, isBinding) { |
| switch (node.type) { |
| case "Identifier": |
| case "ObjectPattern": |
| case "ArrayPattern": |
| case "AssignmentPattern": |
| case "RestElement": |
| return true; |
| |
| case "ObjectExpression": |
| { |
| const last = node.properties.length - 1; |
| return node.properties.every((prop, i) => { |
| return prop.type !== "ObjectMethod" && (i === last || prop.type !== "SpreadElement") && this.isAssignable(prop); |
| }); |
| } |
| |
| case "ObjectProperty": |
| return this.isAssignable(node.value); |
| |
| case "SpreadElement": |
| return this.isAssignable(node.argument); |
| |
| case "ArrayExpression": |
| return node.elements.every(element => element === null || this.isAssignable(element)); |
| |
| case "AssignmentExpression": |
| return node.operator === "="; |
| |
| case "ParenthesizedExpression": |
| return this.isAssignable(node.expression); |
| |
| case "MemberExpression": |
| case "OptionalMemberExpression": |
| return !isBinding; |
| |
| default: |
| return false; |
| } |
| } |
| |
| toReferencedList(exprList, isParenthesizedExpr) { |
| return exprList; |
| } |
| |
| toReferencedListDeep(exprList, isParenthesizedExpr) { |
| this.toReferencedList(exprList, isParenthesizedExpr); |
| |
| for (const expr of exprList) { |
| if ((expr == null ? void 0 : expr.type) === "ArrayExpression") { |
| this.toReferencedListDeep(expr.elements); |
| } |
| } |
| } |
| |
| parseSpread(refExpressionErrors, refNeedsArrowPos) { |
| const node = this.startNode(); |
| this.next(); |
| node.argument = this.parseMaybeAssignAllowIn(refExpressionErrors, undefined, refNeedsArrowPos); |
| return this.finishNode(node, "SpreadElement"); |
| } |
| |
| parseRestBinding() { |
| const node = this.startNode(); |
| this.next(); |
| node.argument = this.parseBindingAtom(); |
| return this.finishNode(node, "RestElement"); |
| } |
| |
| parseBindingAtom() { |
| switch (this.state.type) { |
| case 0: |
| { |
| const node = this.startNode(); |
| this.next(); |
| node.elements = this.parseBindingList(3, 93, true); |
| return this.finishNode(node, "ArrayPattern"); |
| } |
| |
| case 5: |
| return this.parseObjectLike(8, true); |
| } |
| |
| return this.parseIdentifier(); |
| } |
| |
| parseBindingList(close, closeCharCode, allowEmpty, allowModifiers) { |
| const elts = []; |
| let first = true; |
| |
| while (!this.eat(close)) { |
| if (first) { |
| first = false; |
| } else { |
| this.expect(12); |
| } |
| |
| if (allowEmpty && this.match(12)) { |
| elts.push(null); |
| } else if (this.eat(close)) { |
| break; |
| } else if (this.match(21)) { |
| elts.push(this.parseAssignableListItemTypes(this.parseRestBinding())); |
| this.checkCommaAfterRest(closeCharCode); |
| this.expect(close); |
| break; |
| } else { |
| const decorators = []; |
| |
| if (this.match(26) && this.hasPlugin("decorators")) { |
| this.raise(this.state.start, ErrorMessages.UnsupportedParameterDecorator); |
| } |
| |
| while (this.match(26)) { |
| decorators.push(this.parseDecorator()); |
| } |
| |
| elts.push(this.parseAssignableListItem(allowModifiers, decorators)); |
| } |
| } |
| |
| return elts; |
| } |
| |
| parseBindingRestProperty(prop) { |
| this.next(); |
| prop.argument = this.parseIdentifier(); |
| this.checkCommaAfterRest(125); |
| return this.finishNode(prop, "RestElement"); |
| } |
| |
| parseBindingProperty() { |
| const prop = this.startNode(); |
| const { |
| type, |
| start: startPos, |
| startLoc |
| } = this.state; |
| |
| if (type === 21) { |
| return this.parseBindingRestProperty(prop); |
| } else { |
| this.parsePropertyName(prop); |
| } |
| |
| prop.method = false; |
| this.parseObjPropValue(prop, startPos, startLoc, false, false, true, false); |
| return prop; |
| } |
| |
| parseAssignableListItem(allowModifiers, decorators) { |
| const left = this.parseMaybeDefault(); |
| this.parseAssignableListItemTypes(left); |
| const elt = this.parseMaybeDefault(left.start, left.loc.start, left); |
| |
| if (decorators.length) { |
| left.decorators = decorators; |
| } |
| |
| return elt; |
| } |
| |
| parseAssignableListItemTypes(param) { |
| return param; |
| } |
| |
| parseMaybeDefault(startPos, startLoc, left) { |
| var _startLoc, _startPos, _left; |
| |
| startLoc = (_startLoc = startLoc) != null ? _startLoc : this.state.startLoc; |
| startPos = (_startPos = startPos) != null ? _startPos : this.state.start; |
| left = (_left = left) != null ? _left : this.parseBindingAtom(); |
| if (!this.eat(29)) return left; |
| const node = this.startNodeAt(startPos, startLoc); |
| node.left = left; |
| node.right = this.parseMaybeAssignAllowIn(); |
| return this.finishNode(node, "AssignmentPattern"); |
| } |
| |
| checkLVal(expr, contextDescription, bindingType = BIND_NONE, checkClashes, disallowLetBinding, strictModeChanged = false) { |
| switch (expr.type) { |
| case "Identifier": |
| { |
| const { |
| name |
| } = expr; |
| |
| if (this.state.strict && (strictModeChanged ? isStrictBindReservedWord(name, this.inModule) : isStrictBindOnlyReservedWord(name))) { |
| this.raise(expr.start, bindingType === BIND_NONE ? ErrorMessages.StrictEvalArguments : ErrorMessages.StrictEvalArgumentsBinding, name); |
| } |
| |
| if (checkClashes) { |
| if (checkClashes.has(name)) { |
| this.raise(expr.start, ErrorMessages.ParamDupe); |
| } else { |
| checkClashes.add(name); |
| } |
| } |
| |
| if (disallowLetBinding && name === "let") { |
| this.raise(expr.start, ErrorMessages.LetInLexicalBinding); |
| } |
| |
| if (!(bindingType & BIND_NONE)) { |
| this.scope.declareName(name, bindingType, expr.start); |
| } |
| |
| break; |
| } |
| |
| case "MemberExpression": |
| if (bindingType !== BIND_NONE) { |
| this.raise(expr.start, ErrorMessages.InvalidPropertyBindingPattern); |
| } |
| |
| break; |
| |
| case "ObjectPattern": |
| for (let prop of expr.properties) { |
| if (this.isObjectProperty(prop)) prop = prop.value;else if (this.isObjectMethod(prop)) continue; |
| this.checkLVal(prop, "object destructuring pattern", bindingType, checkClashes, disallowLetBinding); |
| } |
| |
| break; |
| |
| case "ArrayPattern": |
| for (const elem of expr.elements) { |
| if (elem) { |
| this.checkLVal(elem, "array destructuring pattern", bindingType, checkClashes, disallowLetBinding); |
| } |
| } |
| |
| break; |
| |
| case "AssignmentPattern": |
| this.checkLVal(expr.left, "assignment pattern", bindingType, checkClashes); |
| break; |
| |
| case "RestElement": |
| this.checkLVal(expr.argument, "rest element", bindingType, checkClashes); |
| break; |
| |
| case "ParenthesizedExpression": |
| this.checkLVal(expr.expression, "parenthesized expression", bindingType, checkClashes); |
| break; |
| |
| default: |
| { |
| this.raise(expr.start, bindingType === BIND_NONE ? ErrorMessages.InvalidLhs : ErrorMessages.InvalidLhsBinding, contextDescription); |
| } |
| } |
| } |
| |
| checkToRestConversion(node) { |
| if (node.argument.type !== "Identifier" && node.argument.type !== "MemberExpression") { |
| this.raise(node.argument.start, ErrorMessages.InvalidRestAssignmentPattern); |
| } |
| } |
| |
| checkCommaAfterRest(close) { |
| if (this.match(12)) { |
| if (this.lookaheadCharCode() === close) { |
| this.raiseTrailingCommaAfterRest(this.state.start); |
| } else { |
| this.raiseRestNotLast(this.state.start); |
| } |
| } |
| } |
| |
| raiseRestNotLast(pos) { |
| throw this.raise(pos, ErrorMessages.ElementAfterRest); |
| } |
| |
| raiseTrailingCommaAfterRest(pos) { |
| this.raise(pos, ErrorMessages.RestTrailingComma); |
| } |
| |
| } |
| |
| const invalidHackPipeBodies = new Map([["ArrowFunctionExpression", "arrow function"], ["AssignmentExpression", "assignment"], ["ConditionalExpression", "conditional"], ["YieldExpression", "yield"]]); |
| class ExpressionParser extends LValParser { |
| checkProto(prop, isRecord, protoRef, refExpressionErrors) { |
| if (prop.type === "SpreadElement" || this.isObjectMethod(prop) || prop.computed || prop.shorthand) { |
| return; |
| } |
| |
| const key = prop.key; |
| const name = key.type === "Identifier" ? key.name : key.value; |
| |
| if (name === "__proto__") { |
| if (isRecord) { |
| this.raise(key.start, ErrorMessages.RecordNoProto); |
| return; |
| } |
| |
| if (protoRef.used) { |
| if (refExpressionErrors) { |
| if (refExpressionErrors.doubleProto === -1) { |
| refExpressionErrors.doubleProto = key.start; |
| } |
| } else { |
| this.raise(key.start, ErrorMessages.DuplicateProto); |
| } |
| } |
| |
| protoRef.used = true; |
| } |
| } |
| |
| shouldExitDescending(expr, potentialArrowAt) { |
| return expr.type === "ArrowFunctionExpression" && expr.start === potentialArrowAt; |
| } |
| |
| getExpression() { |
| this.enterInitialScopes(); |
| this.nextToken(); |
| const expr = this.parseExpression(); |
| |
| if (!this.match(131)) { |
| this.unexpected(); |
| } |
| |
| this.finalizeRemainingComments(); |
| expr.comments = this.state.comments; |
| expr.errors = this.state.errors; |
| |
| if (this.options.tokens) { |
| expr.tokens = this.tokens; |
| } |
| |
| return expr; |
| } |
| |
| parseExpression(disallowIn, refExpressionErrors) { |
| if (disallowIn) { |
| return this.disallowInAnd(() => this.parseExpressionBase(refExpressionErrors)); |
| } |
| |
| return this.allowInAnd(() => this.parseExpressionBase(refExpressionErrors)); |
| } |
| |
| parseExpressionBase(refExpressionErrors) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| const expr = this.parseMaybeAssign(refExpressionErrors); |
| |
| if (this.match(12)) { |
| const node = this.startNodeAt(startPos, startLoc); |
| node.expressions = [expr]; |
| |
| while (this.eat(12)) { |
| node.expressions.push(this.parseMaybeAssign(refExpressionErrors)); |
| } |
| |
| this.toReferencedList(node.expressions); |
| return this.finishNode(node, "SequenceExpression"); |
| } |
| |
| return expr; |
| } |
| |
| parseMaybeAssignDisallowIn(refExpressionErrors, afterLeftParse) { |
| return this.disallowInAnd(() => this.parseMaybeAssign(refExpressionErrors, afterLeftParse)); |
| } |
| |
| parseMaybeAssignAllowIn(refExpressionErrors, afterLeftParse) { |
| return this.allowInAnd(() => this.parseMaybeAssign(refExpressionErrors, afterLeftParse)); |
| } |
| |
| setOptionalParametersError(refExpressionErrors, resultError) { |
| var _resultError$pos; |
| |
| refExpressionErrors.optionalParameters = (_resultError$pos = resultError == null ? void 0 : resultError.pos) != null ? _resultError$pos : this.state.start; |
| } |
| |
| parseMaybeAssign(refExpressionErrors, afterLeftParse) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| |
| if (this.isContextual(101)) { |
| if (this.prodParam.hasYield) { |
| let left = this.parseYield(); |
| |
| if (afterLeftParse) { |
| left = afterLeftParse.call(this, left, startPos, startLoc); |
| } |
| |
| return left; |
| } |
| } |
| |
| let ownExpressionErrors; |
| |
| if (refExpressionErrors) { |
| ownExpressionErrors = false; |
| } else { |
| refExpressionErrors = new ExpressionErrors(); |
| ownExpressionErrors = true; |
| } |
| |
| const { |
| type |
| } = this.state; |
| |
| if (type === 10 || tokenIsIdentifier(type)) { |
| this.state.potentialArrowAt = this.state.start; |
| } |
| |
| let left = this.parseMaybeConditional(refExpressionErrors); |
| |
| if (afterLeftParse) { |
| left = afterLeftParse.call(this, left, startPos, startLoc); |
| } |
| |
| if (tokenIsAssignment(this.state.type)) { |
| const node = this.startNodeAt(startPos, startLoc); |
| const operator = this.state.value; |
| node.operator = operator; |
| |
| if (this.match(29)) { |
| node.left = this.toAssignable(left, true); |
| |
| if (refExpressionErrors.doubleProto >= startPos) { |
| refExpressionErrors.doubleProto = -1; |
| } |
| |
| if (refExpressionErrors.shorthandAssign >= startPos) { |
| refExpressionErrors.shorthandAssign = -1; |
| } |
| } else { |
| node.left = left; |
| } |
| |
| this.checkLVal(left, "assignment expression"); |
| this.next(); |
| node.right = this.parseMaybeAssign(); |
| return this.finishNode(node, "AssignmentExpression"); |
| } else if (ownExpressionErrors) { |
| this.checkExpressionErrors(refExpressionErrors, true); |
| } |
| |
| return left; |
| } |
| |
| parseMaybeConditional(refExpressionErrors) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| const potentialArrowAt = this.state.potentialArrowAt; |
| const expr = this.parseExprOps(refExpressionErrors); |
| |
| if (this.shouldExitDescending(expr, potentialArrowAt)) { |
| return expr; |
| } |
| |
| return this.parseConditional(expr, startPos, startLoc, refExpressionErrors); |
| } |
| |
| parseConditional(expr, startPos, startLoc, refExpressionErrors) { |
| if (this.eat(17)) { |
| const node = this.startNodeAt(startPos, startLoc); |
| node.test = expr; |
| node.consequent = this.parseMaybeAssignAllowIn(); |
| this.expect(14); |
| node.alternate = this.parseMaybeAssign(); |
| return this.finishNode(node, "ConditionalExpression"); |
| } |
| |
| return expr; |
| } |
| |
| parseMaybeUnaryOrPrivate(refExpressionErrors) { |
| return this.match(130) ? this.parsePrivateName() : this.parseMaybeUnary(refExpressionErrors); |
| } |
| |
| parseExprOps(refExpressionErrors) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| const potentialArrowAt = this.state.potentialArrowAt; |
| const expr = this.parseMaybeUnaryOrPrivate(refExpressionErrors); |
| |
| if (this.shouldExitDescending(expr, potentialArrowAt)) { |
| return expr; |
| } |
| |
| return this.parseExprOp(expr, startPos, startLoc, -1); |
| } |
| |
| parseExprOp(left, leftStartPos, leftStartLoc, minPrec) { |
| if (this.isPrivateName(left)) { |
| const value = this.getPrivateNameSV(left); |
| const { |
| start |
| } = left; |
| |
| if (minPrec >= tokenOperatorPrecedence(54) || !this.prodParam.hasIn || !this.match(54)) { |
| this.raise(start, ErrorMessages.PrivateInExpectedIn, value); |
| } |
| |
| this.classScope.usePrivateName(value, start); |
| } |
| |
| const op = this.state.type; |
| |
| if (tokenIsOperator(op) && (this.prodParam.hasIn || !this.match(54))) { |
| let prec = tokenOperatorPrecedence(op); |
| |
| if (prec > minPrec) { |
| if (op === 37) { |
| this.expectPlugin("pipelineOperator"); |
| |
| if (this.state.inFSharpPipelineDirectBody) { |
| return left; |
| } |
| |
| this.checkPipelineAtInfixOperator(left, leftStartPos); |
| } |
| |
| const node = this.startNodeAt(leftStartPos, leftStartLoc); |
| node.left = left; |
| node.operator = this.state.value; |
| const logical = op === 39 || op === 40; |
| const coalesce = op === 38; |
| |
| if (coalesce) { |
| prec = tokenOperatorPrecedence(40); |
| } |
| |
| this.next(); |
| |
| if (op === 37 && this.hasPlugin(["pipelineOperator", { |
| proposal: "minimal" |
| }])) { |
| if (this.state.type === 92 && this.prodParam.hasAwait) { |
| throw this.raise(this.state.start, ErrorMessages.UnexpectedAwaitAfterPipelineBody); |
| } |
| } |
| |
| node.right = this.parseExprOpRightExpr(op, prec); |
| this.finishNode(node, logical || coalesce ? "LogicalExpression" : "BinaryExpression"); |
| const nextOp = this.state.type; |
| |
| if (coalesce && (nextOp === 39 || nextOp === 40) || logical && nextOp === 38) { |
| throw this.raise(this.state.start, ErrorMessages.MixingCoalesceWithLogical); |
| } |
| |
| return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec); |
| } |
| } |
| |
| return left; |
| } |
| |
| parseExprOpRightExpr(op, prec) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| |
| switch (op) { |
| case 37: |
| switch (this.getPluginOption("pipelineOperator", "proposal")) { |
| case "hack": |
| return this.withTopicBindingContext(() => { |
| return this.parseHackPipeBody(); |
| }); |
| |
| case "smart": |
| return this.withTopicBindingContext(() => { |
| if (this.prodParam.hasYield && this.isContextual(101)) { |
| throw this.raise(this.state.start, ErrorMessages.PipeBodyIsTighter, this.state.value); |
| } |
| |
| return this.parseSmartPipelineBodyInStyle(this.parseExprOpBaseRightExpr(op, prec), startPos, startLoc); |
| }); |
| |
| case "fsharp": |
| return this.withSoloAwaitPermittingContext(() => { |
| return this.parseFSharpPipelineBody(prec); |
| }); |
| } |
| |
| default: |
| return this.parseExprOpBaseRightExpr(op, prec); |
| } |
| } |
| |
| parseExprOpBaseRightExpr(op, prec) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| return this.parseExprOp(this.parseMaybeUnaryOrPrivate(), startPos, startLoc, tokenIsRightAssociative(op) ? prec - 1 : prec); |
| } |
| |
| parseHackPipeBody() { |
| var _body$extra; |
| |
| const { |
| start |
| } = this.state; |
| const body = this.parseMaybeAssign(); |
| |
| if (invalidHackPipeBodies.has(body.type) && !((_body$extra = body.extra) != null && _body$extra.parenthesized)) { |
| this.raise(start, ErrorMessages.PipeUnparenthesizedBody, invalidHackPipeBodies.get(body.type)); |
| } |
| |
| if (!this.topicReferenceWasUsedInCurrentContext()) { |
| this.raise(start, ErrorMessages.PipeTopicUnused); |
| } |
| |
| return body; |
| } |
| |
| checkExponentialAfterUnary(node) { |
| if (this.match(53)) { |
| this.raise(node.argument.start, ErrorMessages.UnexpectedTokenUnaryExponentiation); |
| } |
| } |
| |
| parseMaybeUnary(refExpressionErrors, sawUnary) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| const isAwait = this.isContextual(92); |
| |
| if (isAwait && this.isAwaitAllowed()) { |
| this.next(); |
| const expr = this.parseAwait(startPos, startLoc); |
| if (!sawUnary) this.checkExponentialAfterUnary(expr); |
| return expr; |
| } |
| |
| const update = this.match(34); |
| const node = this.startNode(); |
| |
| if (tokenIsPrefix(this.state.type)) { |
| node.operator = this.state.value; |
| node.prefix = true; |
| |
| if (this.match(68)) { |
| this.expectPlugin("throwExpressions"); |
| } |
| |
| const isDelete = this.match(85); |
| this.next(); |
| node.argument = this.parseMaybeUnary(null, true); |
| this.checkExpressionErrors(refExpressionErrors, true); |
| |
| if (this.state.strict && isDelete) { |
| const arg = node.argument; |
| |
| if (arg.type === "Identifier") { |
| this.raise(node.start, ErrorMessages.StrictDelete); |
| } else if (this.hasPropertyAsPrivateName(arg)) { |
| this.raise(node.start, ErrorMessages.DeletePrivateField); |
| } |
| } |
| |
| if (!update) { |
| if (!sawUnary) this.checkExponentialAfterUnary(node); |
| return this.finishNode(node, "UnaryExpression"); |
| } |
| } |
| |
| const expr = this.parseUpdate(node, update, refExpressionErrors); |
| |
| if (isAwait) { |
| const { |
| type |
| } = this.state; |
| const startsExpr = this.hasPlugin("v8intrinsic") ? tokenCanStartExpression(type) : tokenCanStartExpression(type) && !this.match(50); |
| |
| if (startsExpr && !this.isAmbiguousAwait()) { |
| this.raiseOverwrite(startPos, ErrorMessages.AwaitNotInAsyncContext); |
| return this.parseAwait(startPos, startLoc); |
| } |
| } |
| |
| return expr; |
| } |
| |
| parseUpdate(node, update, refExpressionErrors) { |
| if (update) { |
| this.checkLVal(node.argument, "prefix operation"); |
| return this.finishNode(node, "UpdateExpression"); |
| } |
| |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| let expr = this.parseExprSubscripts(refExpressionErrors); |
| if (this.checkExpressionErrors(refExpressionErrors, false)) return expr; |
| |
| while (tokenIsPostfix(this.state.type) && !this.canInsertSemicolon()) { |
| const node = this.startNodeAt(startPos, startLoc); |
| node.operator = this.state.value; |
| node.prefix = false; |
| node.argument = expr; |
| this.checkLVal(expr, "postfix operation"); |
| this.next(); |
| expr = this.finishNode(node, "UpdateExpression"); |
| } |
| |
| return expr; |
| } |
| |
| parseExprSubscripts(refExpressionErrors) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| const potentialArrowAt = this.state.potentialArrowAt; |
| const expr = this.parseExprAtom(refExpressionErrors); |
| |
| if (this.shouldExitDescending(expr, potentialArrowAt)) { |
| return expr; |
| } |
| |
| return this.parseSubscripts(expr, startPos, startLoc); |
| } |
| |
| parseSubscripts(base, startPos, startLoc, noCalls) { |
| const state = { |
| optionalChainMember: false, |
| maybeAsyncArrow: this.atPossibleAsyncArrow(base), |
| stop: false |
| }; |
| |
| do { |
| base = this.parseSubscript(base, startPos, startLoc, noCalls, state); |
| state.maybeAsyncArrow = false; |
| } while (!state.stop); |
| |
| return base; |
| } |
| |
| parseSubscript(base, startPos, startLoc, noCalls, state) { |
| const { |
| type |
| } = this.state; |
| |
| if (!noCalls && type === 15) { |
| return this.parseBind(base, startPos, startLoc, noCalls, state); |
| } else if (tokenIsTemplate(type)) { |
| return this.parseTaggedTemplateExpression(base, startPos, startLoc, state); |
| } |
| |
| let optional = false; |
| |
| if (type === 18) { |
| if (noCalls && this.lookaheadCharCode() === 40) { |
| state.stop = true; |
| return base; |
| } |
| |
| state.optionalChainMember = optional = true; |
| this.next(); |
| } |
| |
| if (!noCalls && this.match(10)) { |
| return this.parseCoverCallAndAsyncArrowHead(base, startPos, startLoc, state, optional); |
| } else { |
| const computed = this.eat(0); |
| |
| if (computed || optional || this.eat(16)) { |
| return this.parseMember(base, startPos, startLoc, state, computed, optional); |
| } else { |
| state.stop = true; |
| return base; |
| } |
| } |
| } |
| |
| parseMember(base, startPos, startLoc, state, computed, optional) { |
| const node = this.startNodeAt(startPos, startLoc); |
| node.object = base; |
| node.computed = computed; |
| |
| if (computed) { |
| node.property = this.parseExpression(); |
| this.expect(3); |
| } else if (this.match(130)) { |
| if (base.type === "Super") { |
| this.raise(startPos, ErrorMessages.SuperPrivateField); |
| } |
| |
| this.classScope.usePrivateName(this.state.value, this.state.start); |
| node.property = this.parsePrivateName(); |
| } else { |
| node.property = this.parseIdentifier(true); |
| } |
| |
| if (state.optionalChainMember) { |
| node.optional = optional; |
| return this.finishNode(node, "OptionalMemberExpression"); |
| } else { |
| return this.finishNode(node, "MemberExpression"); |
| } |
| } |
| |
| parseBind(base, startPos, startLoc, noCalls, state) { |
| const node = this.startNodeAt(startPos, startLoc); |
| node.object = base; |
| this.next(); |
| node.callee = this.parseNoCallExpr(); |
| state.stop = true; |
| return this.parseSubscripts(this.finishNode(node, "BindExpression"), startPos, startLoc, noCalls); |
| } |
| |
| parseCoverCallAndAsyncArrowHead(base, startPos, startLoc, state, optional) { |
| const oldMaybeInArrowParameters = this.state.maybeInArrowParameters; |
| let refExpressionErrors = null; |
| this.state.maybeInArrowParameters = true; |
| this.next(); |
| let node = this.startNodeAt(startPos, startLoc); |
| node.callee = base; |
| |
| if (state.maybeAsyncArrow) { |
| this.expressionScope.enter(newAsyncArrowScope()); |
| refExpressionErrors = new ExpressionErrors(); |
| } |
| |
| if (state.optionalChainMember) { |
| node.optional = optional; |
| } |
| |
| if (optional) { |
| node.arguments = this.parseCallExpressionArguments(11); |
| } else { |
| node.arguments = this.parseCallExpressionArguments(11, base.type === "Import", base.type !== "Super", node, refExpressionErrors); |
| } |
| |
| this.finishCallExpression(node, state.optionalChainMember); |
| |
| if (state.maybeAsyncArrow && this.shouldParseAsyncArrow() && !optional) { |
| state.stop = true; |
| this.expressionScope.validateAsPattern(); |
| this.expressionScope.exit(); |
| node = this.parseAsyncArrowFromCallExpression(this.startNodeAt(startPos, startLoc), node); |
| } else { |
| if (state.maybeAsyncArrow) { |
| this.checkExpressionErrors(refExpressionErrors, true); |
| this.expressionScope.exit(); |
| } |
| |
| this.toReferencedArguments(node); |
| } |
| |
| this.state.maybeInArrowParameters = oldMaybeInArrowParameters; |
| return node; |
| } |
| |
| toReferencedArguments(node, isParenthesizedExpr) { |
| this.toReferencedListDeep(node.arguments, isParenthesizedExpr); |
| } |
| |
| parseTaggedTemplateExpression(base, startPos, startLoc, state) { |
| const node = this.startNodeAt(startPos, startLoc); |
| node.tag = base; |
| node.quasi = this.parseTemplate(true); |
| |
| if (state.optionalChainMember) { |
| this.raise(startPos, ErrorMessages.OptionalChainingNoTemplate); |
| } |
| |
| return this.finishNode(node, "TaggedTemplateExpression"); |
| } |
| |
| atPossibleAsyncArrow(base) { |
| return base.type === "Identifier" && base.name === "async" && this.state.lastTokEnd === base.end && !this.canInsertSemicolon() && base.end - base.start === 5 && base.start === this.state.potentialArrowAt; |
| } |
| |
| finishCallExpression(node, optional) { |
| if (node.callee.type === "Import") { |
| if (node.arguments.length === 2) { |
| { |
| if (!this.hasPlugin("moduleAttributes")) { |
| this.expectPlugin("importAssertions"); |
| } |
| } |
| } |
| |
| if (node.arguments.length === 0 || node.arguments.length > 2) { |
| this.raise(node.start, ErrorMessages.ImportCallArity, this.hasPlugin("importAssertions") || this.hasPlugin("moduleAttributes") ? "one or two arguments" : "one argument"); |
| } else { |
| for (const arg of node.arguments) { |
| if (arg.type === "SpreadElement") { |
| this.raise(arg.start, ErrorMessages.ImportCallSpreadArgument); |
| } |
| } |
| } |
| } |
| |
| return this.finishNode(node, optional ? "OptionalCallExpression" : "CallExpression"); |
| } |
| |
| parseCallExpressionArguments(close, dynamicImport, allowPlaceholder, nodeForExtra, refExpressionErrors) { |
| const elts = []; |
| let first = true; |
| const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody; |
| this.state.inFSharpPipelineDirectBody = false; |
| |
| while (!this.eat(close)) { |
| if (first) { |
| first = false; |
| } else { |
| this.expect(12); |
| |
| if (this.match(close)) { |
| if (dynamicImport && !this.hasPlugin("importAssertions") && !this.hasPlugin("moduleAttributes")) { |
| this.raise(this.state.lastTokStart, ErrorMessages.ImportCallArgumentTrailingComma); |
| } |
| |
| if (nodeForExtra) { |
| this.addExtra(nodeForExtra, "trailingComma", this.state.lastTokStart); |
| } |
| |
| this.next(); |
| break; |
| } |
| } |
| |
| elts.push(this.parseExprListItem(false, refExpressionErrors, allowPlaceholder)); |
| } |
| |
| this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody; |
| return elts; |
| } |
| |
| shouldParseAsyncArrow() { |
| return this.match(19) && !this.canInsertSemicolon(); |
| } |
| |
| parseAsyncArrowFromCallExpression(node, call) { |
| var _call$extra; |
| |
| this.resetPreviousNodeTrailingComments(call); |
| this.expect(19); |
| this.parseArrowExpression(node, call.arguments, true, (_call$extra = call.extra) == null ? void 0 : _call$extra.trailingComma); |
| |
| if (call.innerComments) { |
| setInnerComments(node, call.innerComments); |
| } |
| |
| if (call.callee.trailingComments) { |
| setInnerComments(node, call.callee.trailingComments); |
| } |
| |
| return node; |
| } |
| |
| parseNoCallExpr() { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| return this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true); |
| } |
| |
| parseExprAtom(refExpressionErrors) { |
| let node; |
| const { |
| type |
| } = this.state; |
| |
| switch (type) { |
| case 75: |
| return this.parseSuper(); |
| |
| case 79: |
| node = this.startNode(); |
| this.next(); |
| |
| if (this.match(16)) { |
| return this.parseImportMetaProperty(node); |
| } |
| |
| if (!this.match(10)) { |
| this.raise(this.state.lastTokStart, ErrorMessages.UnsupportedImport); |
| } |
| |
| return this.finishNode(node, "Import"); |
| |
| case 74: |
| node = this.startNode(); |
| this.next(); |
| return this.finishNode(node, "ThisExpression"); |
| |
| case 86: |
| { |
| return this.parseDo(this.startNode(), false); |
| } |
| |
| case 52: |
| case 31: |
| { |
| this.readRegexp(); |
| return this.parseRegExpLiteral(this.state.value); |
| } |
| |
| case 126: |
| return this.parseNumericLiteral(this.state.value); |
| |
| case 127: |
| return this.parseBigIntLiteral(this.state.value); |
| |
| case 128: |
| return this.parseDecimalLiteral(this.state.value); |
| |
| case 125: |
| return this.parseStringLiteral(this.state.value); |
| |
| case 80: |
| return this.parseNullLiteral(); |
| |
| case 81: |
| return this.parseBooleanLiteral(true); |
| |
| case 82: |
| return this.parseBooleanLiteral(false); |
| |
| case 10: |
| { |
| const canBeArrow = this.state.potentialArrowAt === this.state.start; |
| return this.parseParenAndDistinguishExpression(canBeArrow); |
| } |
| |
| case 2: |
| case 1: |
| { |
| return this.parseArrayLike(this.state.type === 2 ? 4 : 3, false, true); |
| } |
| |
| case 0: |
| { |
| return this.parseArrayLike(3, true, false, refExpressionErrors); |
| } |
| |
| case 6: |
| case 7: |
| { |
| return this.parseObjectLike(this.state.type === 6 ? 9 : 8, false, true); |
| } |
| |
| case 5: |
| { |
| return this.parseObjectLike(8, false, false, refExpressionErrors); |
| } |
| |
| case 64: |
| return this.parseFunctionOrFunctionSent(); |
| |
| case 26: |
| this.parseDecorators(); |
| |
| case 76: |
| node = this.startNode(); |
| this.takeDecorators(node); |
| return this.parseClass(node, false); |
| |
| case 73: |
| return this.parseNewOrNewTarget(); |
| |
| case 25: |
| case 24: |
| return this.parseTemplate(false); |
| |
| case 15: |
| { |
| node = this.startNode(); |
| this.next(); |
| node.object = null; |
| const callee = node.callee = this.parseNoCallExpr(); |
| |
| if (callee.type === "MemberExpression") { |
| return this.finishNode(node, "BindExpression"); |
| } else { |
| throw this.raise(callee.start, ErrorMessages.UnsupportedBind); |
| } |
| } |
| |
| case 130: |
| { |
| this.raise(this.state.start, ErrorMessages.PrivateInExpectedIn, this.state.value); |
| return this.parsePrivateName(); |
| } |
| |
| case 33: |
| { |
| return this.parseTopicReferenceThenEqualsSign(50, "%"); |
| } |
| |
| case 32: |
| { |
| return this.parseTopicReferenceThenEqualsSign(42, "^"); |
| } |
| |
| case 42: |
| case 50: |
| case 27: |
| { |
| const pipeProposal = this.getPluginOption("pipelineOperator", "proposal"); |
| |
| if (pipeProposal) { |
| return this.parseTopicReference(pipeProposal); |
| } else { |
| throw this.unexpected(); |
| } |
| } |
| |
| case 45: |
| { |
| const lookaheadCh = this.input.codePointAt(this.nextTokenStart()); |
| |
| if (isIdentifierStart(lookaheadCh) || lookaheadCh === 62) { |
| this.expectOnePlugin(["jsx", "flow", "typescript"]); |
| break; |
| } else { |
| throw this.unexpected(); |
| } |
| } |
| |
| default: |
| if (tokenIsIdentifier(type)) { |
| if (this.isContextual(119) && this.lookaheadCharCode() === 123 && !this.hasFollowingLineBreak()) { |
| return this.parseModuleExpression(); |
| } |
| |
| const canBeArrow = this.state.potentialArrowAt === this.state.start; |
| const containsEsc = this.state.containsEsc; |
| const id = this.parseIdentifier(); |
| |
| if (!containsEsc && id.name === "async" && !this.canInsertSemicolon()) { |
| const { |
| type |
| } = this.state; |
| |
| if (type === 64) { |
| this.resetPreviousNodeTrailingComments(id); |
| this.next(); |
| return this.parseFunction(this.startNodeAtNode(id), undefined, true); |
| } else if (tokenIsIdentifier(type)) { |
| if (this.lookaheadCharCode() === 61) { |
| return this.parseAsyncArrowUnaryFunction(this.startNodeAtNode(id)); |
| } else { |
| return id; |
| } |
| } else if (type === 86) { |
| this.resetPreviousNodeTrailingComments(id); |
| return this.parseDo(this.startNodeAtNode(id), true); |
| } |
| } |
| |
| if (canBeArrow && this.match(19) && !this.canInsertSemicolon()) { |
| this.next(); |
| return this.parseArrowExpression(this.startNodeAtNode(id), [id], false); |
| } |
| |
| return id; |
| } else { |
| throw this.unexpected(); |
| } |
| |
| } |
| } |
| |
| parseTopicReferenceThenEqualsSign(topicTokenType, topicTokenValue) { |
| const pipeProposal = this.getPluginOption("pipelineOperator", "proposal"); |
| |
| if (pipeProposal) { |
| this.state.type = topicTokenType; |
| this.state.value = topicTokenValue; |
| this.state.pos--; |
| this.state.end--; |
| this.state.endLoc.column--; |
| return this.parseTopicReference(pipeProposal); |
| } else { |
| throw this.unexpected(); |
| } |
| } |
| |
| parseTopicReference(pipeProposal) { |
| const node = this.startNode(); |
| const start = this.state.start; |
| const tokenType = this.state.type; |
| this.next(); |
| return this.finishTopicReference(node, start, pipeProposal, tokenType); |
| } |
| |
| finishTopicReference(node, start, pipeProposal, tokenType) { |
| if (this.testTopicReferenceConfiguration(pipeProposal, start, tokenType)) { |
| let nodeType; |
| |
| if (pipeProposal === "smart") { |
| nodeType = "PipelinePrimaryTopicReference"; |
| } else { |
| nodeType = "TopicReference"; |
| } |
| |
| if (!this.topicReferenceIsAllowedInCurrentContext()) { |
| if (pipeProposal === "smart") { |
| this.raise(start, ErrorMessages.PrimaryTopicNotAllowed); |
| } else { |
| this.raise(start, ErrorMessages.PipeTopicUnbound); |
| } |
| } |
| |
| this.registerTopicReference(); |
| return this.finishNode(node, nodeType); |
| } else { |
| throw this.raise(start, ErrorMessages.PipeTopicUnconfiguredToken, tokenLabelName(tokenType)); |
| } |
| } |
| |
| testTopicReferenceConfiguration(pipeProposal, start, tokenType) { |
| switch (pipeProposal) { |
| case "hack": |
| { |
| return this.hasPlugin(["pipelineOperator", { |
| topicToken: tokenLabelName(tokenType) |
| }]); |
| } |
| |
| case "smart": |
| return tokenType === 27; |
| |
| default: |
| throw this.raise(start, ErrorMessages.PipeTopicRequiresHackPipes); |
| } |
| } |
| |
| parseAsyncArrowUnaryFunction(node) { |
| this.prodParam.enter(functionFlags(true, this.prodParam.hasYield)); |
| const params = [this.parseIdentifier()]; |
| this.prodParam.exit(); |
| |
| if (this.hasPrecedingLineBreak()) { |
| this.raise(this.state.pos, ErrorMessages.LineTerminatorBeforeArrow); |
| } |
| |
| this.expect(19); |
| this.parseArrowExpression(node, params, true); |
| return node; |
| } |
| |
| parseDo(node, isAsync) { |
| this.expectPlugin("doExpressions"); |
| |
| if (isAsync) { |
| this.expectPlugin("asyncDoExpressions"); |
| } |
| |
| node.async = isAsync; |
| this.next(); |
| const oldLabels = this.state.labels; |
| this.state.labels = []; |
| |
| if (isAsync) { |
| this.prodParam.enter(PARAM_AWAIT); |
| node.body = this.parseBlock(); |
| this.prodParam.exit(); |
| } else { |
| node.body = this.parseBlock(); |
| } |
| |
| this.state.labels = oldLabels; |
| return this.finishNode(node, "DoExpression"); |
| } |
| |
| parseSuper() { |
| const node = this.startNode(); |
| this.next(); |
| |
| if (this.match(10) && !this.scope.allowDirectSuper && !this.options.allowSuperOutsideMethod) { |
| this.raise(node.start, ErrorMessages.SuperNotAllowed); |
| } else if (!this.scope.allowSuper && !this.options.allowSuperOutsideMethod) { |
| this.raise(node.start, ErrorMessages.UnexpectedSuper); |
| } |
| |
| if (!this.match(10) && !this.match(0) && !this.match(16)) { |
| this.raise(node.start, ErrorMessages.UnsupportedSuper); |
| } |
| |
| return this.finishNode(node, "Super"); |
| } |
| |
| parsePrivateName() { |
| const node = this.startNode(); |
| const id = this.startNodeAt(this.state.start + 1, new Position(this.state.curLine, this.state.start + 1 - this.state.lineStart)); |
| const name = this.state.value; |
| this.next(); |
| node.id = this.createIdentifier(id, name); |
| return this.finishNode(node, "PrivateName"); |
| } |
| |
| parseFunctionOrFunctionSent() { |
| const node = this.startNode(); |
| this.next(); |
| |
| if (this.prodParam.hasYield && this.match(16)) { |
| const meta = this.createIdentifier(this.startNodeAtNode(node), "function"); |
| this.next(); |
| |
| if (this.match(98)) { |
| this.expectPlugin("functionSent"); |
| } else if (!this.hasPlugin("functionSent")) { |
| this.unexpected(); |
| } |
| |
| return this.parseMetaProperty(node, meta, "sent"); |
| } |
| |
| return this.parseFunction(node); |
| } |
| |
| parseMetaProperty(node, meta, propertyName) { |
| node.meta = meta; |
| const containsEsc = this.state.containsEsc; |
| node.property = this.parseIdentifier(true); |
| |
| if (node.property.name !== propertyName || containsEsc) { |
| this.raise(node.property.start, ErrorMessages.UnsupportedMetaProperty, meta.name, propertyName); |
| } |
| |
| return this.finishNode(node, "MetaProperty"); |
| } |
| |
| parseImportMetaProperty(node) { |
| const id = this.createIdentifier(this.startNodeAtNode(node), "import"); |
| this.next(); |
| |
| if (this.isContextual(96)) { |
| if (!this.inModule) { |
| this.raise(id.start, SourceTypeModuleErrorMessages.ImportMetaOutsideModule); |
| } |
| |
| this.sawUnambiguousESM = true; |
| } |
| |
| return this.parseMetaProperty(node, id, "meta"); |
| } |
| |
| parseLiteralAtNode(value, type, node) { |
| this.addExtra(node, "rawValue", value); |
| this.addExtra(node, "raw", this.input.slice(node.start, this.state.end)); |
| node.value = value; |
| this.next(); |
| return this.finishNode(node, type); |
| } |
| |
| parseLiteral(value, type) { |
| const node = this.startNode(); |
| return this.parseLiteralAtNode(value, type, node); |
| } |
| |
| parseStringLiteral(value) { |
| return this.parseLiteral(value, "StringLiteral"); |
| } |
| |
| parseNumericLiteral(value) { |
| return this.parseLiteral(value, "NumericLiteral"); |
| } |
| |
| parseBigIntLiteral(value) { |
| return this.parseLiteral(value, "BigIntLiteral"); |
| } |
| |
| parseDecimalLiteral(value) { |
| return this.parseLiteral(value, "DecimalLiteral"); |
| } |
| |
| parseRegExpLiteral(value) { |
| const node = this.parseLiteral(value.value, "RegExpLiteral"); |
| node.pattern = value.pattern; |
| node.flags = value.flags; |
| return node; |
| } |
| |
| parseBooleanLiteral(value) { |
| const node = this.startNode(); |
| node.value = value; |
| this.next(); |
| return this.finishNode(node, "BooleanLiteral"); |
| } |
| |
| parseNullLiteral() { |
| const node = this.startNode(); |
| this.next(); |
| return this.finishNode(node, "NullLiteral"); |
| } |
| |
| parseParenAndDistinguishExpression(canBeArrow) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| let val; |
| this.next(); |
| this.expressionScope.enter(newArrowHeadScope()); |
| const oldMaybeInArrowParameters = this.state.maybeInArrowParameters; |
| const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody; |
| this.state.maybeInArrowParameters = true; |
| this.state.inFSharpPipelineDirectBody = false; |
| const innerStartPos = this.state.start; |
| const innerStartLoc = this.state.startLoc; |
| const exprList = []; |
| const refExpressionErrors = new ExpressionErrors(); |
| let first = true; |
| let spreadStart; |
| let optionalCommaStart; |
| |
| while (!this.match(11)) { |
| if (first) { |
| first = false; |
| } else { |
| this.expect(12, refExpressionErrors.optionalParameters === -1 ? null : refExpressionErrors.optionalParameters); |
| |
| if (this.match(11)) { |
| optionalCommaStart = this.state.start; |
| break; |
| } |
| } |
| |
| if (this.match(21)) { |
| const spreadNodeStartPos = this.state.start; |
| const spreadNodeStartLoc = this.state.startLoc; |
| spreadStart = this.state.start; |
| exprList.push(this.parseParenItem(this.parseRestBinding(), spreadNodeStartPos, spreadNodeStartLoc)); |
| this.checkCommaAfterRest(41); |
| break; |
| } else { |
| exprList.push(this.parseMaybeAssignAllowIn(refExpressionErrors, this.parseParenItem)); |
| } |
| } |
| |
| const innerEndPos = this.state.lastTokEnd; |
| const innerEndLoc = this.state.lastTokEndLoc; |
| this.expect(11); |
| this.state.maybeInArrowParameters = oldMaybeInArrowParameters; |
| this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody; |
| let arrowNode = this.startNodeAt(startPos, startLoc); |
| |
| if (canBeArrow && this.shouldParseArrow(exprList) && (arrowNode = this.parseArrow(arrowNode))) { |
| this.expressionScope.validateAsPattern(); |
| this.expressionScope.exit(); |
| this.parseArrowExpression(arrowNode, exprList, false); |
| return arrowNode; |
| } |
| |
| this.expressionScope.exit(); |
| |
| if (!exprList.length) { |
| this.unexpected(this.state.lastTokStart); |
| } |
| |
| if (optionalCommaStart) this.unexpected(optionalCommaStart); |
| if (spreadStart) this.unexpected(spreadStart); |
| this.checkExpressionErrors(refExpressionErrors, true); |
| this.toReferencedListDeep(exprList, true); |
| |
| if (exprList.length > 1) { |
| val = this.startNodeAt(innerStartPos, innerStartLoc); |
| val.expressions = exprList; |
| this.finishNode(val, "SequenceExpression"); |
| this.resetEndLocation(val, innerEndPos, innerEndLoc); |
| } else { |
| val = exprList[0]; |
| } |
| |
| if (!this.options.createParenthesizedExpressions) { |
| this.addExtra(val, "parenthesized", true); |
| this.addExtra(val, "parenStart", startPos); |
| this.takeSurroundingComments(val, startPos, this.state.lastTokEnd); |
| return val; |
| } |
| |
| const parenExpression = this.startNodeAt(startPos, startLoc); |
| parenExpression.expression = val; |
| this.finishNode(parenExpression, "ParenthesizedExpression"); |
| return parenExpression; |
| } |
| |
| shouldParseArrow(params) { |
| return !this.canInsertSemicolon(); |
| } |
| |
| parseArrow(node) { |
| if (this.eat(19)) { |
| return node; |
| } |
| } |
| |
| parseParenItem(node, startPos, startLoc) { |
| return node; |
| } |
| |
| parseNewOrNewTarget() { |
| const node = this.startNode(); |
| this.next(); |
| |
| if (this.match(16)) { |
| const meta = this.createIdentifier(this.startNodeAtNode(node), "new"); |
| this.next(); |
| const metaProp = this.parseMetaProperty(node, meta, "target"); |
| |
| if (!this.scope.inNonArrowFunction && !this.scope.inClass) { |
| this.raise(metaProp.start, ErrorMessages.UnexpectedNewTarget); |
| } |
| |
| return metaProp; |
| } |
| |
| return this.parseNew(node); |
| } |
| |
| parseNew(node) { |
| node.callee = this.parseNoCallExpr(); |
| |
| if (node.callee.type === "Import") { |
| this.raise(node.callee.start, ErrorMessages.ImportCallNotNewExpression); |
| } else if (this.isOptionalChain(node.callee)) { |
| this.raise(this.state.lastTokEnd, ErrorMessages.OptionalChainingNoNew); |
| } else if (this.eat(18)) { |
| this.raise(this.state.start, ErrorMessages.OptionalChainingNoNew); |
| } |
| |
| this.parseNewArguments(node); |
| return this.finishNode(node, "NewExpression"); |
| } |
| |
| parseNewArguments(node) { |
| if (this.eat(10)) { |
| const args = this.parseExprList(11); |
| this.toReferencedList(args); |
| node.arguments = args; |
| } else { |
| node.arguments = []; |
| } |
| } |
| |
| parseTemplateElement(isTagged) { |
| const { |
| start, |
| end, |
| value |
| } = this.state; |
| const elemStart = start + 1; |
| const elem = this.startNodeAt(elemStart, createPositionWithColumnOffset(this.state.startLoc, 1)); |
| |
| if (value === null) { |
| if (!isTagged) { |
| this.raise(start + 2, ErrorMessages.InvalidEscapeSequenceTemplate); |
| } |
| } |
| |
| const isTail = this.match(24); |
| const endOffset = isTail ? -1 : -2; |
| const elemEnd = end + endOffset; |
| elem.value = { |
| raw: this.input.slice(elemStart, elemEnd).replace(/\r\n?/g, "\n"), |
| cooked: value === null ? null : value.slice(1, endOffset) |
| }; |
| elem.tail = isTail; |
| this.next(); |
| this.finishNode(elem, "TemplateElement"); |
| this.resetEndLocation(elem, elemEnd, createPositionWithColumnOffset(this.state.lastTokEndLoc, endOffset)); |
| return elem; |
| } |
| |
| parseTemplate(isTagged) { |
| const node = this.startNode(); |
| node.expressions = []; |
| let curElt = this.parseTemplateElement(isTagged); |
| node.quasis = [curElt]; |
| |
| while (!curElt.tail) { |
| node.expressions.push(this.parseTemplateSubstitution()); |
| this.readTemplateContinuation(); |
| node.quasis.push(curElt = this.parseTemplateElement(isTagged)); |
| } |
| |
| return this.finishNode(node, "TemplateLiteral"); |
| } |
| |
| parseTemplateSubstitution() { |
| return this.parseExpression(); |
| } |
| |
| parseObjectLike(close, isPattern, isRecord, refExpressionErrors) { |
| if (isRecord) { |
| this.expectPlugin("recordAndTuple"); |
| } |
| |
| const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody; |
| this.state.inFSharpPipelineDirectBody = false; |
| const propHash = Object.create(null); |
| let first = true; |
| const node = this.startNode(); |
| node.properties = []; |
| this.next(); |
| |
| while (!this.match(close)) { |
| if (first) { |
| first = false; |
| } else { |
| this.expect(12); |
| |
| if (this.match(close)) { |
| this.addExtra(node, "trailingComma", this.state.lastTokStart); |
| break; |
| } |
| } |
| |
| let prop; |
| |
| if (isPattern) { |
| prop = this.parseBindingProperty(); |
| } else { |
| prop = this.parsePropertyDefinition(refExpressionErrors); |
| this.checkProto(prop, isRecord, propHash, refExpressionErrors); |
| } |
| |
| if (isRecord && !this.isObjectProperty(prop) && prop.type !== "SpreadElement") { |
| this.raise(prop.start, ErrorMessages.InvalidRecordProperty); |
| } |
| |
| if (prop.shorthand) { |
| this.addExtra(prop, "shorthand", true); |
| } |
| |
| node.properties.push(prop); |
| } |
| |
| this.next(); |
| this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody; |
| let type = "ObjectExpression"; |
| |
| if (isPattern) { |
| type = "ObjectPattern"; |
| } else if (isRecord) { |
| type = "RecordExpression"; |
| } |
| |
| return this.finishNode(node, type); |
| } |
| |
| maybeAsyncOrAccessorProp(prop) { |
| return !prop.computed && prop.key.type === "Identifier" && (this.isLiteralPropertyName() || this.match(0) || this.match(51)); |
| } |
| |
| parsePropertyDefinition(refExpressionErrors) { |
| let decorators = []; |
| |
| if (this.match(26)) { |
| if (this.hasPlugin("decorators")) { |
| this.raise(this.state.start, ErrorMessages.UnsupportedPropertyDecorator); |
| } |
| |
| while (this.match(26)) { |
| decorators.push(this.parseDecorator()); |
| } |
| } |
| |
| const prop = this.startNode(); |
| let isAsync = false; |
| let isAccessor = false; |
| let startPos; |
| let startLoc; |
| |
| if (this.match(21)) { |
| if (decorators.length) this.unexpected(); |
| return this.parseSpread(); |
| } |
| |
| if (decorators.length) { |
| prop.decorators = decorators; |
| decorators = []; |
| } |
| |
| prop.method = false; |
| |
| if (refExpressionErrors) { |
| startPos = this.state.start; |
| startLoc = this.state.startLoc; |
| } |
| |
| let isGenerator = this.eat(51); |
| this.parsePropertyNamePrefixOperator(prop); |
| const containsEsc = this.state.containsEsc; |
| const key = this.parsePropertyName(prop); |
| |
| if (!isGenerator && !containsEsc && this.maybeAsyncOrAccessorProp(prop)) { |
| const keyName = key.name; |
| |
| if (keyName === "async" && !this.hasPrecedingLineBreak()) { |
| isAsync = true; |
| this.resetPreviousNodeTrailingComments(key); |
| isGenerator = this.eat(51); |
| this.parsePropertyName(prop); |
| } |
| |
| if (keyName === "get" || keyName === "set") { |
| isAccessor = true; |
| this.resetPreviousNodeTrailingComments(key); |
| prop.kind = keyName; |
| |
| if (this.match(51)) { |
| isGenerator = true; |
| this.raise(this.state.pos, ErrorMessages.AccessorIsGenerator, keyName); |
| this.next(); |
| } |
| |
| this.parsePropertyName(prop); |
| } |
| } |
| |
| this.parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, false, isAccessor, refExpressionErrors); |
| return prop; |
| } |
| |
| getGetterSetterExpectedParamCount(method) { |
| return method.kind === "get" ? 0 : 1; |
| } |
| |
| getObjectOrClassMethodParams(method) { |
| return method.params; |
| } |
| |
| checkGetterSetterParams(method) { |
| var _params; |
| |
| const paramCount = this.getGetterSetterExpectedParamCount(method); |
| const params = this.getObjectOrClassMethodParams(method); |
| const start = method.start; |
| |
| if (params.length !== paramCount) { |
| if (method.kind === "get") { |
| this.raise(start, ErrorMessages.BadGetterArity); |
| } else { |
| this.raise(start, ErrorMessages.BadSetterArity); |
| } |
| } |
| |
| if (method.kind === "set" && ((_params = params[params.length - 1]) == null ? void 0 : _params.type) === "RestElement") { |
| this.raise(start, ErrorMessages.BadSetterRestParameter); |
| } |
| } |
| |
| parseObjectMethod(prop, isGenerator, isAsync, isPattern, isAccessor) { |
| if (isAccessor) { |
| this.parseMethod(prop, isGenerator, false, false, false, "ObjectMethod"); |
| this.checkGetterSetterParams(prop); |
| return prop; |
| } |
| |
| if (isAsync || isGenerator || this.match(10)) { |
| if (isPattern) this.unexpected(); |
| prop.kind = "method"; |
| prop.method = true; |
| return this.parseMethod(prop, isGenerator, isAsync, false, false, "ObjectMethod"); |
| } |
| } |
| |
| parseObjectProperty(prop, startPos, startLoc, isPattern, refExpressionErrors) { |
| prop.shorthand = false; |
| |
| if (this.eat(14)) { |
| prop.value = isPattern ? this.parseMaybeDefault(this.state.start, this.state.startLoc) : this.parseMaybeAssignAllowIn(refExpressionErrors); |
| return this.finishNode(prop, "ObjectProperty"); |
| } |
| |
| if (!prop.computed && prop.key.type === "Identifier") { |
| this.checkReservedWord(prop.key.name, prop.key.start, true, false); |
| |
| if (isPattern) { |
| prop.value = this.parseMaybeDefault(startPos, startLoc, cloneIdentifier(prop.key)); |
| } else if (this.match(29)) { |
| const shorthandAssign = this.state.start; |
| |
| if (refExpressionErrors != null) { |
| if (refExpressionErrors.shorthandAssign === -1) { |
| refExpressionErrors.shorthandAssign = shorthandAssign; |
| } |
| } else { |
| this.raise(shorthandAssign, ErrorMessages.InvalidCoverInitializedName); |
| } |
| |
| prop.value = this.parseMaybeDefault(startPos, startLoc, cloneIdentifier(prop.key)); |
| } else { |
| prop.value = cloneIdentifier(prop.key); |
| } |
| |
| prop.shorthand = true; |
| return this.finishNode(prop, "ObjectProperty"); |
| } |
| } |
| |
| parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, isPattern, isAccessor, refExpressionErrors) { |
| const node = this.parseObjectMethod(prop, isGenerator, isAsync, isPattern, isAccessor) || this.parseObjectProperty(prop, startPos, startLoc, isPattern, refExpressionErrors); |
| if (!node) this.unexpected(); |
| return node; |
| } |
| |
| parsePropertyName(prop) { |
| if (this.eat(0)) { |
| prop.computed = true; |
| prop.key = this.parseMaybeAssignAllowIn(); |
| this.expect(3); |
| } else { |
| const { |
| type, |
| value |
| } = this.state; |
| let key; |
| |
| if (tokenIsKeywordOrIdentifier(type)) { |
| key = this.parseIdentifier(true); |
| } else { |
| switch (type) { |
| case 126: |
| key = this.parseNumericLiteral(value); |
| break; |
| |
| case 125: |
| key = this.parseStringLiteral(value); |
| break; |
| |
| case 127: |
| key = this.parseBigIntLiteral(value); |
| break; |
| |
| case 128: |
| key = this.parseDecimalLiteral(value); |
| break; |
| |
| case 130: |
| { |
| const privateKeyPos = this.state.start + 1; |
| this.raise(privateKeyPos, ErrorMessages.UnexpectedPrivateField); |
| key = this.parsePrivateName(); |
| break; |
| } |
| |
| default: |
| throw this.unexpected(); |
| } |
| } |
| |
| prop.key = key; |
| |
| if (type !== 130) { |
| prop.computed = false; |
| } |
| } |
| |
| return prop.key; |
| } |
| |
| initFunction(node, isAsync) { |
| node.id = null; |
| node.generator = false; |
| node.async = !!isAsync; |
| } |
| |
| parseMethod(node, isGenerator, isAsync, isConstructor, allowDirectSuper, type, inClassScope = false) { |
| this.initFunction(node, isAsync); |
| node.generator = !!isGenerator; |
| const allowModifiers = isConstructor; |
| this.scope.enter(SCOPE_FUNCTION | SCOPE_SUPER | (inClassScope ? SCOPE_CLASS : 0) | (allowDirectSuper ? SCOPE_DIRECT_SUPER : 0)); |
| this.prodParam.enter(functionFlags(isAsync, node.generator)); |
| this.parseFunctionParams(node, allowModifiers); |
| this.parseFunctionBodyAndFinish(node, type, true); |
| this.prodParam.exit(); |
| this.scope.exit(); |
| return node; |
| } |
| |
| parseArrayLike(close, canBePattern, isTuple, refExpressionErrors) { |
| if (isTuple) { |
| this.expectPlugin("recordAndTuple"); |
| } |
| |
| const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody; |
| this.state.inFSharpPipelineDirectBody = false; |
| const node = this.startNode(); |
| this.next(); |
| node.elements = this.parseExprList(close, !isTuple, refExpressionErrors, node); |
| this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody; |
| return this.finishNode(node, isTuple ? "TupleExpression" : "ArrayExpression"); |
| } |
| |
| parseArrowExpression(node, params, isAsync, trailingCommaPos) { |
| this.scope.enter(SCOPE_FUNCTION | SCOPE_ARROW); |
| let flags = functionFlags(isAsync, false); |
| |
| if (!this.match(0) && this.prodParam.hasIn) { |
| flags |= PARAM_IN; |
| } |
| |
| this.prodParam.enter(flags); |
| this.initFunction(node, isAsync); |
| const oldMaybeInArrowParameters = this.state.maybeInArrowParameters; |
| |
| if (params) { |
| this.state.maybeInArrowParameters = true; |
| this.setArrowFunctionParameters(node, params, trailingCommaPos); |
| } |
| |
| this.state.maybeInArrowParameters = false; |
| this.parseFunctionBody(node, true); |
| this.prodParam.exit(); |
| this.scope.exit(); |
| this.state.maybeInArrowParameters = oldMaybeInArrowParameters; |
| return this.finishNode(node, "ArrowFunctionExpression"); |
| } |
| |
| setArrowFunctionParameters(node, params, trailingCommaPos) { |
| node.params = this.toAssignableList(params, trailingCommaPos, false); |
| } |
| |
| parseFunctionBodyAndFinish(node, type, isMethod = false) { |
| this.parseFunctionBody(node, false, isMethod); |
| this.finishNode(node, type); |
| } |
| |
| parseFunctionBody(node, allowExpression, isMethod = false) { |
| const isExpression = allowExpression && !this.match(5); |
| this.expressionScope.enter(newExpressionScope()); |
| |
| if (isExpression) { |
| node.body = this.parseMaybeAssign(); |
| this.checkParams(node, false, allowExpression, false); |
| } else { |
| const oldStrict = this.state.strict; |
| const oldLabels = this.state.labels; |
| this.state.labels = []; |
| this.prodParam.enter(this.prodParam.currentFlags() | PARAM_RETURN); |
| node.body = this.parseBlock(true, false, hasStrictModeDirective => { |
| const nonSimple = !this.isSimpleParamList(node.params); |
| |
| if (hasStrictModeDirective && nonSimple) { |
| const errorPos = (node.kind === "method" || node.kind === "constructor") && !!node.key ? node.key.end : node.start; |
| this.raise(errorPos, ErrorMessages.IllegalLanguageModeDirective); |
| } |
| |
| const strictModeChanged = !oldStrict && this.state.strict; |
| this.checkParams(node, !this.state.strict && !allowExpression && !isMethod && !nonSimple, allowExpression, strictModeChanged); |
| |
| if (this.state.strict && node.id) { |
| this.checkLVal(node.id, "function name", BIND_OUTSIDE, undefined, undefined, strictModeChanged); |
| } |
| }); |
| this.prodParam.exit(); |
| this.state.labels = oldLabels; |
| } |
| |
| this.expressionScope.exit(); |
| } |
| |
| isSimpleParamList(params) { |
| for (let i = 0, len = params.length; i < len; i++) { |
| if (params[i].type !== "Identifier") return false; |
| } |
| |
| return true; |
| } |
| |
| checkParams(node, allowDuplicates, isArrowFunction, strictModeChanged = true) { |
| const checkClashes = new Set(); |
| |
| for (const param of node.params) { |
| this.checkLVal(param, "function parameter list", BIND_VAR, allowDuplicates ? null : checkClashes, undefined, strictModeChanged); |
| } |
| } |
| |
| parseExprList(close, allowEmpty, refExpressionErrors, nodeForExtra) { |
| const elts = []; |
| let first = true; |
| |
| while (!this.eat(close)) { |
| if (first) { |
| first = false; |
| } else { |
| this.expect(12); |
| |
| if (this.match(close)) { |
| if (nodeForExtra) { |
| this.addExtra(nodeForExtra, "trailingComma", this.state.lastTokStart); |
| } |
| |
| this.next(); |
| break; |
| } |
| } |
| |
| elts.push(this.parseExprListItem(allowEmpty, refExpressionErrors)); |
| } |
| |
| return elts; |
| } |
| |
| parseExprListItem(allowEmpty, refExpressionErrors, allowPlaceholder) { |
| let elt; |
| |
| if (this.match(12)) { |
| if (!allowEmpty) { |
| this.raise(this.state.pos, ErrorMessages.UnexpectedToken, ","); |
| } |
| |
| elt = null; |
| } else if (this.match(21)) { |
| const spreadNodeStartPos = this.state.start; |
| const spreadNodeStartLoc = this.state.startLoc; |
| elt = this.parseParenItem(this.parseSpread(refExpressionErrors), spreadNodeStartPos, spreadNodeStartLoc); |
| } else if (this.match(17)) { |
| this.expectPlugin("partialApplication"); |
| |
| if (!allowPlaceholder) { |
| this.raise(this.state.start, ErrorMessages.UnexpectedArgumentPlaceholder); |
| } |
| |
| const node = this.startNode(); |
| this.next(); |
| elt = this.finishNode(node, "ArgumentPlaceholder"); |
| } else { |
| elt = this.parseMaybeAssignAllowIn(refExpressionErrors, this.parseParenItem); |
| } |
| |
| return elt; |
| } |
| |
| parseIdentifier(liberal) { |
| const node = this.startNode(); |
| const name = this.parseIdentifierName(node.start, liberal); |
| return this.createIdentifier(node, name); |
| } |
| |
| createIdentifier(node, name) { |
| node.name = name; |
| node.loc.identifierName = name; |
| return this.finishNode(node, "Identifier"); |
| } |
| |
| parseIdentifierName(pos, liberal) { |
| let name; |
| const { |
| start, |
| type |
| } = this.state; |
| |
| if (tokenIsKeywordOrIdentifier(type)) { |
| name = this.state.value; |
| } else { |
| throw this.unexpected(); |
| } |
| |
| const tokenIsKeyword = tokenKeywordOrIdentifierIsKeyword(type); |
| |
| if (liberal) { |
| if (tokenIsKeyword) { |
| this.replaceToken(124); |
| } |
| } else { |
| this.checkReservedWord(name, start, tokenIsKeyword, false); |
| } |
| |
| this.next(); |
| return name; |
| } |
| |
| checkReservedWord(word, startLoc, checkKeywords, isBinding) { |
| if (word.length > 10) { |
| return; |
| } |
| |
| if (!canBeReservedWord(word)) { |
| return; |
| } |
| |
| if (word === "yield") { |
| if (this.prodParam.hasYield) { |
| this.raise(startLoc, ErrorMessages.YieldBindingIdentifier); |
| return; |
| } |
| } else if (word === "await") { |
| if (this.prodParam.hasAwait) { |
| this.raise(startLoc, ErrorMessages.AwaitBindingIdentifier); |
| return; |
| } else if (this.scope.inStaticBlock) { |
| this.raise(startLoc, ErrorMessages.AwaitBindingIdentifierInStaticBlock); |
| return; |
| } else { |
| this.expressionScope.recordAsyncArrowParametersError(startLoc, ErrorMessages.AwaitBindingIdentifier); |
| } |
| } else if (word === "arguments") { |
| if (this.scope.inClassAndNotInNonArrowFunction) { |
| this.raise(startLoc, ErrorMessages.ArgumentsInClass); |
| return; |
| } |
| } |
| |
| if (checkKeywords && isKeyword(word)) { |
| this.raise(startLoc, ErrorMessages.UnexpectedKeyword, word); |
| return; |
| } |
| |
| const reservedTest = !this.state.strict ? isReservedWord : isBinding ? isStrictBindReservedWord : isStrictReservedWord; |
| |
| if (reservedTest(word, this.inModule)) { |
| this.raise(startLoc, ErrorMessages.UnexpectedReservedWord, word); |
| } |
| } |
| |
| isAwaitAllowed() { |
| if (this.prodParam.hasAwait) return true; |
| |
| if (this.options.allowAwaitOutsideFunction && !this.scope.inFunction) { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| parseAwait(startPos, startLoc) { |
| const node = this.startNodeAt(startPos, startLoc); |
| this.expressionScope.recordParameterInitializerError(node.start, ErrorMessages.AwaitExpressionFormalParameter); |
| |
| if (this.eat(51)) { |
| this.raise(node.start, ErrorMessages.ObsoleteAwaitStar); |
| } |
| |
| if (!this.scope.inFunction && !this.options.allowAwaitOutsideFunction) { |
| if (this.isAmbiguousAwait()) { |
| this.ambiguousScriptDifferentAst = true; |
| } else { |
| this.sawUnambiguousESM = true; |
| } |
| } |
| |
| if (!this.state.soloAwait) { |
| node.argument = this.parseMaybeUnary(null, true); |
| } |
| |
| return this.finishNode(node, "AwaitExpression"); |
| } |
| |
| isAmbiguousAwait() { |
| if (this.hasPrecedingLineBreak()) return true; |
| const { |
| type |
| } = this.state; |
| return type === 49 || type === 10 || type === 0 || tokenIsTemplate(type) || type === 129 || type === 52 || this.hasPlugin("v8intrinsic") && type === 50; |
| } |
| |
| parseYield() { |
| const node = this.startNode(); |
| this.expressionScope.recordParameterInitializerError(node.start, ErrorMessages.YieldInParameter); |
| this.next(); |
| let delegating = false; |
| let argument = null; |
| |
| if (!this.hasPrecedingLineBreak()) { |
| delegating = this.eat(51); |
| |
| switch (this.state.type) { |
| case 13: |
| case 131: |
| case 8: |
| case 11: |
| case 3: |
| case 9: |
| case 14: |
| case 12: |
| if (!delegating) break; |
| |
| default: |
| argument = this.parseMaybeAssign(); |
| } |
| } |
| |
| node.delegate = delegating; |
| node.argument = argument; |
| return this.finishNode(node, "YieldExpression"); |
| } |
| |
| checkPipelineAtInfixOperator(left, leftStartPos) { |
| if (this.hasPlugin(["pipelineOperator", { |
| proposal: "smart" |
| }])) { |
| if (left.type === "SequenceExpression") { |
| this.raise(leftStartPos, ErrorMessages.PipelineHeadSequenceExpression); |
| } |
| } |
| } |
| |
| checkHackPipeBodyEarlyErrors(startPos) { |
| if (!this.topicReferenceWasUsedInCurrentContext()) { |
| this.raise(startPos, ErrorMessages.PipeTopicUnused); |
| } |
| } |
| |
| parseSmartPipelineBodyInStyle(childExpr, startPos, startLoc) { |
| const bodyNode = this.startNodeAt(startPos, startLoc); |
| |
| if (this.isSimpleReference(childExpr)) { |
| bodyNode.callee = childExpr; |
| return this.finishNode(bodyNode, "PipelineBareFunction"); |
| } else { |
| this.checkSmartPipeTopicBodyEarlyErrors(startPos); |
| bodyNode.expression = childExpr; |
| return this.finishNode(bodyNode, "PipelineTopicExpression"); |
| } |
| } |
| |
| isSimpleReference(expression) { |
| switch (expression.type) { |
| case "MemberExpression": |
| return !expression.computed && this.isSimpleReference(expression.object); |
| |
| case "Identifier": |
| return true; |
| |
| default: |
| return false; |
| } |
| } |
| |
| checkSmartPipeTopicBodyEarlyErrors(startPos) { |
| if (this.match(19)) { |
| throw this.raise(this.state.start, ErrorMessages.PipelineBodyNoArrow); |
| } else if (!this.topicReferenceWasUsedInCurrentContext()) { |
| this.raise(startPos, ErrorMessages.PipelineTopicUnused); |
| } |
| } |
| |
| withTopicBindingContext(callback) { |
| const outerContextTopicState = this.state.topicContext; |
| this.state.topicContext = { |
| maxNumOfResolvableTopics: 1, |
| maxTopicIndex: null |
| }; |
| |
| try { |
| return callback(); |
| } finally { |
| this.state.topicContext = outerContextTopicState; |
| } |
| } |
| |
| withSmartMixTopicForbiddingContext(callback) { |
| if (this.hasPlugin(["pipelineOperator", { |
| proposal: "smart" |
| }])) { |
| const outerContextTopicState = this.state.topicContext; |
| this.state.topicContext = { |
| maxNumOfResolvableTopics: 0, |
| maxTopicIndex: null |
| }; |
| |
| try { |
| return callback(); |
| } finally { |
| this.state.topicContext = outerContextTopicState; |
| } |
| } else { |
| return callback(); |
| } |
| } |
| |
| withSoloAwaitPermittingContext(callback) { |
| const outerContextSoloAwaitState = this.state.soloAwait; |
| this.state.soloAwait = true; |
| |
| try { |
| return callback(); |
| } finally { |
| this.state.soloAwait = outerContextSoloAwaitState; |
| } |
| } |
| |
| allowInAnd(callback) { |
| const flags = this.prodParam.currentFlags(); |
| const prodParamToSet = PARAM_IN & ~flags; |
| |
| if (prodParamToSet) { |
| this.prodParam.enter(flags | PARAM_IN); |
| |
| try { |
| return callback(); |
| } finally { |
| this.prodParam.exit(); |
| } |
| } |
| |
| return callback(); |
| } |
| |
| disallowInAnd(callback) { |
| const flags = this.prodParam.currentFlags(); |
| const prodParamToClear = PARAM_IN & flags; |
| |
| if (prodParamToClear) { |
| this.prodParam.enter(flags & ~PARAM_IN); |
| |
| try { |
| return callback(); |
| } finally { |
| this.prodParam.exit(); |
| } |
| } |
| |
| return callback(); |
| } |
| |
| registerTopicReference() { |
| this.state.topicContext.maxTopicIndex = 0; |
| } |
| |
| topicReferenceIsAllowedInCurrentContext() { |
| return this.state.topicContext.maxNumOfResolvableTopics >= 1; |
| } |
| |
| topicReferenceWasUsedInCurrentContext() { |
| return this.state.topicContext.maxTopicIndex != null && this.state.topicContext.maxTopicIndex >= 0; |
| } |
| |
| parseFSharpPipelineBody(prec) { |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| this.state.potentialArrowAt = this.state.start; |
| const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody; |
| this.state.inFSharpPipelineDirectBody = true; |
| const ret = this.parseExprOp(this.parseMaybeUnaryOrPrivate(), startPos, startLoc, prec); |
| this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody; |
| return ret; |
| } |
| |
| parseModuleExpression() { |
| this.expectPlugin("moduleBlocks"); |
| const node = this.startNode(); |
| this.next(); |
| this.eat(5); |
| const revertScopes = this.initializeScopes(true); |
| this.enterInitialScopes(); |
| const program = this.startNode(); |
| |
| try { |
| node.body = this.parseProgram(program, 8, "module"); |
| } finally { |
| revertScopes(); |
| } |
| |
| this.eat(8); |
| return this.finishNode(node, "ModuleExpression"); |
| } |
| |
| parsePropertyNamePrefixOperator(prop) {} |
| |
| } |
| |
| const loopLabel = { |
| kind: "loop" |
| }, |
| switchLabel = { |
| kind: "switch" |
| }; |
| const FUNC_NO_FLAGS = 0b000, |
| FUNC_STATEMENT = 0b001, |
| FUNC_HANGING_STATEMENT = 0b010, |
| FUNC_NULLABLE_ID = 0b100; |
| const loneSurrogate = /[\uD800-\uDFFF]/u; |
| const keywordRelationalOperator = /in(?:stanceof)?/y; |
| |
| function babel7CompatTokens(tokens, input) { |
| for (let i = 0; i < tokens.length; i++) { |
| const token = tokens[i]; |
| const { |
| type |
| } = token; |
| |
| if (typeof type === "number") { |
| { |
| if (type === 130) { |
| const { |
| loc, |
| start, |
| value, |
| end |
| } = token; |
| const hashEndPos = start + 1; |
| const hashEndLoc = createPositionWithColumnOffset(loc.start, 1); |
| tokens.splice(i, 1, new Token({ |
| type: getExportedToken(27), |
| value: "#", |
| start: start, |
| end: hashEndPos, |
| startLoc: loc.start, |
| endLoc: hashEndLoc |
| }), new Token({ |
| type: getExportedToken(124), |
| value: value, |
| start: hashEndPos, |
| end: end, |
| startLoc: hashEndLoc, |
| endLoc: loc.end |
| })); |
| i++; |
| continue; |
| } |
| |
| if (tokenIsTemplate(type)) { |
| const { |
| loc, |
| start, |
| value, |
| end |
| } = token; |
| const backquoteEnd = start + 1; |
| const backquoteEndLoc = createPositionWithColumnOffset(loc.start, 1); |
| let startToken; |
| |
| if (input.charCodeAt(start) === 96) { |
| startToken = new Token({ |
| type: getExportedToken(22), |
| value: "`", |
| start: start, |
| end: backquoteEnd, |
| startLoc: loc.start, |
| endLoc: backquoteEndLoc |
| }); |
| } else { |
| startToken = new Token({ |
| type: getExportedToken(8), |
| value: "}", |
| start: start, |
| end: backquoteEnd, |
| startLoc: loc.start, |
| endLoc: backquoteEndLoc |
| }); |
| } |
| |
| let templateValue, templateElementEnd, templateElementEndLoc, endToken; |
| |
| if (type === 24) { |
| templateElementEnd = end - 1; |
| templateElementEndLoc = createPositionWithColumnOffset(loc.end, -1); |
| templateValue = value === null ? null : value.slice(1, -1); |
| endToken = new Token({ |
| type: getExportedToken(22), |
| value: "`", |
| start: templateElementEnd, |
| end: end, |
| startLoc: templateElementEndLoc, |
| endLoc: loc.end |
| }); |
| } else { |
| templateElementEnd = end - 2; |
| templateElementEndLoc = createPositionWithColumnOffset(loc.end, -2); |
| templateValue = value === null ? null : value.slice(1, -2); |
| endToken = new Token({ |
| type: getExportedToken(23), |
| value: "${", |
| start: templateElementEnd, |
| end: end, |
| startLoc: templateElementEndLoc, |
| endLoc: loc.end |
| }); |
| } |
| |
| tokens.splice(i, 1, startToken, new Token({ |
| type: getExportedToken(20), |
| value: templateValue, |
| start: backquoteEnd, |
| end: templateElementEnd, |
| startLoc: backquoteEndLoc, |
| endLoc: templateElementEndLoc |
| }), endToken); |
| i += 2; |
| continue; |
| } |
| } |
| token.type = getExportedToken(type); |
| } |
| } |
| |
| return tokens; |
| } |
| |
| class StatementParser extends ExpressionParser { |
| parseTopLevel(file, program) { |
| file.program = this.parseProgram(program); |
| file.comments = this.state.comments; |
| |
| if (this.options.tokens) { |
| file.tokens = babel7CompatTokens(this.tokens, this.input); |
| } |
| |
| return this.finishNode(file, "File"); |
| } |
| |
| parseProgram(program, end = 131, sourceType = this.options.sourceType) { |
| program.sourceType = sourceType; |
| program.interpreter = this.parseInterpreterDirective(); |
| this.parseBlockBody(program, true, true, end); |
| |
| if (this.inModule && !this.options.allowUndeclaredExports && this.scope.undefinedExports.size > 0) { |
| for (const [name] of Array.from(this.scope.undefinedExports)) { |
| const pos = this.scope.undefinedExports.get(name); |
| this.raise(pos, ErrorMessages.ModuleExportUndefined, name); |
| } |
| } |
| |
| return this.finishNode(program, "Program"); |
| } |
| |
| stmtToDirective(stmt) { |
| const directive = stmt; |
| directive.type = "Directive"; |
| directive.value = directive.expression; |
| delete directive.expression; |
| const directiveLiteral = directive.value; |
| const expressionValue = directiveLiteral.value; |
| const raw = this.input.slice(directiveLiteral.start, directiveLiteral.end); |
| const val = directiveLiteral.value = raw.slice(1, -1); |
| this.addExtra(directiveLiteral, "raw", raw); |
| this.addExtra(directiveLiteral, "rawValue", val); |
| this.addExtra(directiveLiteral, "expressionValue", expressionValue); |
| directiveLiteral.type = "DirectiveLiteral"; |
| return directive; |
| } |
| |
| parseInterpreterDirective() { |
| if (!this.match(28)) { |
| return null; |
| } |
| |
| const node = this.startNode(); |
| node.value = this.state.value; |
| this.next(); |
| return this.finishNode(node, "InterpreterDirective"); |
| } |
| |
| isLet(context) { |
| if (!this.isContextual(95)) { |
| return false; |
| } |
| |
| return this.isLetKeyword(context); |
| } |
| |
| isLetKeyword(context) { |
| const next = this.nextTokenStart(); |
| const nextCh = this.codePointAtPos(next); |
| |
| if (nextCh === 92 || nextCh === 91) { |
| return true; |
| } |
| |
| if (context) return false; |
| if (nextCh === 123) return true; |
| |
| if (isIdentifierStart(nextCh)) { |
| keywordRelationalOperator.lastIndex = next; |
| |
| if (keywordRelationalOperator.test(this.input)) { |
| const endCh = this.codePointAtPos(keywordRelationalOperator.lastIndex); |
| |
| if (!isIdentifierChar(endCh) && endCh !== 92) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| return false; |
| } |
| |
| parseStatement(context, topLevel) { |
| if (this.match(26)) { |
| this.parseDecorators(true); |
| } |
| |
| return this.parseStatementContent(context, topLevel); |
| } |
| |
| parseStatementContent(context, topLevel) { |
| let starttype = this.state.type; |
| const node = this.startNode(); |
| let kind; |
| |
| if (this.isLet(context)) { |
| starttype = 70; |
| kind = "let"; |
| } |
| |
| switch (starttype) { |
| case 56: |
| return this.parseBreakContinueStatement(node, true); |
| |
| case 59: |
| return this.parseBreakContinueStatement(node, false); |
| |
| case 60: |
| return this.parseDebuggerStatement(node); |
| |
| case 86: |
| return this.parseDoStatement(node); |
| |
| case 87: |
| return this.parseForStatement(node); |
| |
| case 64: |
| if (this.lookaheadCharCode() === 46) break; |
| |
| if (context) { |
| if (this.state.strict) { |
| this.raise(this.state.start, ErrorMessages.StrictFunction); |
| } else if (context !== "if" && context !== "label") { |
| this.raise(this.state.start, ErrorMessages.SloppyFunction); |
| } |
| } |
| |
| return this.parseFunctionStatement(node, false, !context); |
| |
| case 76: |
| if (context) this.unexpected(); |
| return this.parseClass(node, true); |
| |
| case 65: |
| return this.parseIfStatement(node); |
| |
| case 66: |
| return this.parseReturnStatement(node); |
| |
| case 67: |
| return this.parseSwitchStatement(node); |
| |
| case 68: |
| return this.parseThrowStatement(node); |
| |
| case 69: |
| return this.parseTryStatement(node); |
| |
| case 71: |
| case 70: |
| kind = kind || this.state.value; |
| |
| if (context && kind !== "var") { |
| this.raise(this.state.start, ErrorMessages.UnexpectedLexicalDeclaration); |
| } |
| |
| return this.parseVarStatement(node, kind); |
| |
| case 88: |
| return this.parseWhileStatement(node); |
| |
| case 72: |
| return this.parseWithStatement(node); |
| |
| case 5: |
| return this.parseBlock(); |
| |
| case 13: |
| return this.parseEmptyStatement(node); |
| |
| case 79: |
| { |
| const nextTokenCharCode = this.lookaheadCharCode(); |
| |
| if (nextTokenCharCode === 40 || nextTokenCharCode === 46) { |
| break; |
| } |
| } |
| |
| case 78: |
| { |
| if (!this.options.allowImportExportEverywhere && !topLevel) { |
| this.raise(this.state.start, ErrorMessages.UnexpectedImportExport); |
| } |
| |
| this.next(); |
| let result; |
| |
| if (starttype === 79) { |
| result = this.parseImport(node); |
| |
| if (result.type === "ImportDeclaration" && (!result.importKind || result.importKind === "value")) { |
| this.sawUnambiguousESM = true; |
| } |
| } else { |
| result = this.parseExport(node); |
| |
| if (result.type === "ExportNamedDeclaration" && (!result.exportKind || result.exportKind === "value") || result.type === "ExportAllDeclaration" && (!result.exportKind || result.exportKind === "value") || result.type === "ExportDefaultDeclaration") { |
| this.sawUnambiguousESM = true; |
| } |
| } |
| |
| this.assertModuleNodeAllowed(node); |
| return result; |
| } |
| |
| default: |
| { |
| if (this.isAsyncFunction()) { |
| if (context) { |
| this.raise(this.state.start, ErrorMessages.AsyncFunctionInSingleStatementContext); |
| } |
| |
| this.next(); |
| return this.parseFunctionStatement(node, true, !context); |
| } |
| } |
| } |
| |
| const maybeName = this.state.value; |
| const expr = this.parseExpression(); |
| |
| if (tokenIsIdentifier(starttype) && expr.type === "Identifier" && this.eat(14)) { |
| return this.parseLabeledStatement(node, maybeName, expr, context); |
| } else { |
| return this.parseExpressionStatement(node, expr); |
| } |
| } |
| |
| assertModuleNodeAllowed(node) { |
| if (!this.options.allowImportExportEverywhere && !this.inModule) { |
| this.raise(node.start, SourceTypeModuleErrorMessages.ImportOutsideModule); |
| } |
| } |
| |
| takeDecorators(node) { |
| const decorators = this.state.decoratorStack[this.state.decoratorStack.length - 1]; |
| |
| if (decorators.length) { |
| node.decorators = decorators; |
| this.resetStartLocationFromNode(node, decorators[0]); |
| this.state.decoratorStack[this.state.decoratorStack.length - 1] = []; |
| } |
| } |
| |
| canHaveLeadingDecorator() { |
| return this.match(76); |
| } |
| |
| parseDecorators(allowExport) { |
| const currentContextDecorators = this.state.decoratorStack[this.state.decoratorStack.length - 1]; |
| |
| while (this.match(26)) { |
| const decorator = this.parseDecorator(); |
| currentContextDecorators.push(decorator); |
| } |
| |
| if (this.match(78)) { |
| if (!allowExport) { |
| this.unexpected(); |
| } |
| |
| if (this.hasPlugin("decorators") && !this.getPluginOption("decorators", "decoratorsBeforeExport")) { |
| this.raise(this.state.start, ErrorMessages.DecoratorExportClass); |
| } |
| } else if (!this.canHaveLeadingDecorator()) { |
| throw this.raise(this.state.start, ErrorMessages.UnexpectedLeadingDecorator); |
| } |
| } |
| |
| parseDecorator() { |
| this.expectOnePlugin(["decorators-legacy", "decorators"]); |
| const node = this.startNode(); |
| this.next(); |
| |
| if (this.hasPlugin("decorators")) { |
| this.state.decoratorStack.push([]); |
| const startPos = this.state.start; |
| const startLoc = this.state.startLoc; |
| let expr; |
| |
| if (this.eat(10)) { |
| expr = this.parseExpression(); |
| this.expect(11); |
| } else { |
| expr = this.parseIdentifier(false); |
| |
| while (this.eat(16)) { |
| const node = this.startNodeAt(startPos, startLoc); |
| node.object = expr; |
| node.property = this.parseIdentifier(true); |
| node.computed = false; |
| expr = this.finishNode(node, "MemberExpression"); |
| } |
| } |
| |
| node.expression = this.parseMaybeDecoratorArguments(expr); |
| this.state.decoratorStack.pop(); |
| } else { |
| node.expression = this.parseExprSubscripts(); |
| } |
| |
| return this.finishNode(node, "Decorator"); |
| } |
| |
| parseMaybeDecoratorArguments(expr) { |
| if (this.eat(10)) { |
| const node = this.startNodeAtNode(expr); |
| node.callee = expr; |
| node.arguments = this.parseCallExpressionArguments(11, false); |
| this.toReferencedList(node.arguments); |
| return this.finishNode(node, "CallExpression"); |
| } |
| |
| return expr; |
| } |
| |
| parseBreakContinueStatement(node, isBreak) { |
| this.next(); |
| |
| if (this.isLineTerminator()) { |
| node.label = null; |
| } else { |
| node.label = this.parseIdentifier(); |
| this.semicolon(); |
| } |
| |
| this.verifyBreakContinue(node, isBreak); |
| return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement"); |
| } |
| |
| verifyBreakContinue(node, isBreak) { |
| let i; |
| |
| for (i = 0; i < this.state.labels.length; ++i) { |
| const lab = this.state.labels[i]; |
| |
| if (node.label == null || lab.name === node.label.name) { |
| if (lab.kind != null && (isBreak || lab.kind === "loop")) break; |
| if (node.label && isBreak) break; |
| } |
| } |
| |
| if (i === this.state.labels.length) { |
| this.raise(node.start, ErrorMessages.IllegalBreakContinue, isBreak ? "break" : "continue"); |
| } |
| } |
| |
| parseDebuggerStatement(node) { |
| this.next(); |
| this.semicolon(); |
| return this.finishNode(node, "DebuggerStatement"); |
| } |
| |
| parseHeaderExpression() { |
| this.expect(10); |
| const val = this.parseExpression(); |
| this.expect(11); |
| return val; |
| } |
| |
| parseDoStatement(node) { |
| this.next(); |
| this.state.labels.push(loopLabel); |
| node.body = this.withSmartMixTopicForbiddingContext(() => this.parseStatement("do")); |
| this.state.labels.pop(); |
| this.expect(88); |
| node.test = this.parseHeaderExpression(); |
| this.eat(13); |
| return this.finishNode(node, "DoWhileStatement"); |
| } |
| |
| parseForStatement(node) { |
| this.next(); |
| this.state.labels.push(loopLabel); |
| let awaitAt = -1; |
| |
| if (this.isAwaitAllowed() && this.eatContextual(92)) { |
| awaitAt = this.state.lastTokStart; |
| } |
| |
| this.scope.enter(SCOPE_OTHER); |
| this.expect(10); |
| |
| if (this.match(13)) { |
| if (awaitAt > -1) { |
| this.unexpected(awaitAt); |
| } |
| |
| return this.parseFor(node, null); |
| } |
| |
| const startsWithLet = this.isContextual(95); |
| const isLet = startsWithLet && this.isLetKeyword(); |
| |
| if (this.match(70) || this.match(71) || isLet) { |
| const init = this.startNode(); |
| const kind = isLet ? "let" : this.state.value; |
| this.next(); |
| this.parseVar(init, true, kind); |
| this.finishNode(init, "VariableDeclaration"); |
| |
| if ((this.match(54) || this.isContextual(97)) && init.declarations.length === 1) { |
| return this.parseForIn(node, init, awaitAt); |
| } |
| |
| if (awaitAt > -1) { |
| this.unexpected(awaitAt); |
| } |
| |
| return this.parseFor(node, init); |
| } |
| |
| const startsWithAsync = this.isContextual(91); |
| const refExpressionErrors = new ExpressionErrors(); |
| const init = this.parseExpression(true, refExpressionErrors); |
| const isForOf = this.isContextual(97); |
| |
| if (isForOf) { |
| if (startsWithLet) { |
| this.raise(init.start, ErrorMessages.ForOfLet); |
| } else if (awaitAt === -1 && startsWithAsync && init.type === "Identifier") { |
| this.raise(init.start, ErrorMessages.ForOfAsync); |
| } |
| } |
| |
| if (isForOf || this.match(54)) { |
| this.toAssignable(init, true); |
| const description = isForOf ? "for-of statement" : "for-in statement"; |
| this.checkLVal(init, description); |
| return this.parseForIn(node, init, awaitAt); |
| } else { |
| this.checkExpressionErrors(refExpressionErrors, true); |
| } |
| |
| if (awaitAt > -1) { |
| this.unexpected(awaitAt); |
| } |
| |
| return this.parseFor(node, init); |
| } |
| |
| parseFunctionStatement(node, isAsync, declarationPosition) { |
| this.next(); |
| return this.parseFunction(node, FUNC_STATEMENT | (declarationPosition ? 0 : FUNC_HANGING_STATEMENT), isAsync); |
| } |
| |
| parseIfStatement(node) { |
| this.next(); |
| node.test = this.parseHeaderExpression(); |
| node.consequent = this.parseStatement("if"); |
| node.alternate = this.eat(62) ? this.parseStatement("if") : null; |
| return this.finishNode(node, "IfStatement"); |
| } |
| |
| parseReturnStatement(node) { |
| if (!this.prodParam.hasReturn && !this.options.allowReturnOutsideFunction) { |
| this.raise(this.state.start, ErrorMessages.IllegalReturn); |
| } |
| |
| this.next(); |
| |
| if (this.isLineTerminator()) { |
| node.argument = null; |
| } else { |
| node.argument = this.parseExpression(); |
| this.semicolon(); |
| } |
| |
| return this.finishNode(node, "ReturnStatement"); |
| } |
| |
| parseSwitchStatement(node) { |
| this.next(); |
| node.discriminant = this.parseHeaderExpression(); |
| const cases = node.cases = []; |
| this.expect(5); |
| this.state.labels.push(switchLabel); |
| this.scope.enter(SCOPE_OTHER); |
| let cur; |
| |
| for (let sawDefault; !this.match(8);) { |
| if (this.match(57) || this.match(61)) { |
| const isCase = this.match(57); |
| if (cur) this.finishNode(cur, "SwitchCase"); |
| cases.push(cur = this.startNode()); |
| cur.consequent = []; |
| this.next(); |
| |
| if (isCase) { |
| cur.test = this.parseExpression(); |
| } else { |
| if (sawDefault) { |
| this.raise(this.state.lastTokStart, ErrorMessages.MultipleDefaultsInSwitch); |
| } |
| |
| sawDefault = true; |
| cur.test = null; |
| } |
| |
| this.expect(14); |
| } else { |
| if (cur) { |
| cur.consequent.push(this.parseStatement(null)); |
| } else { |
| this.unexpected(); |
| } |
| } |
| } |
| |
| this.scope.exit(); |
| if (cur) this.finishNode(cur, "SwitchCase"); |
| this.next(); |
| this.state.labels.pop(); |
| return this.finishNode(node, "SwitchStatement"); |
| } |
| |
| parseThrowStatement(node) { |
| this.next(); |
| |
| if (this.hasPrecedingLineBreak()) { |
| this.raise(this.state.lastTokEnd, ErrorMessages.NewlineAfterThrow); |
| } |
| |
| node.argument = this.parseExpression(); |
| this.semicolon(); |
| return this.finishNode(node, "ThrowStatement"); |
| } |
| |
| parseCatchClauseParam() { |
| const param = this.parseBindingAtom(); |
| const simple = param.type === "Identifier"; |
| this.scope.enter(simple ? SCOPE_SIMPLE_CATCH : 0); |
| this.checkLVal(param, "catch clause", BIND_LEXICAL); |
| return param; |
| } |
| |
| parseTryStatement(node) { |
| this.next(); |
| node.block = this.parseBlock(); |
| node.handler = null; |
| |
| if (this.match(58)) { |
| const clause = this.startNode(); |
| this.next(); |
| |
| if (this.match(10)) { |
| this.expect(10); |
| clause.param = this.parseCatchClauseParam(); |
| this.expect(11); |
| } else { |
| clause.param = null; |
| this.scope.enter(SCOPE_OTHER); |
| } |
| |
| clause.body = this.withSmartMixTopicForbiddingContext(() => this.parseBlock(false, false)); |
| this.scope.exit(); |
| node.handler = this.finishNode(clause, "CatchClause"); |
| } |
| |
| node.finalizer = this.eat(63) ? this.parseBlock() : null; |
| |
| if (!node.handler && !node.finalizer) { |
| this.raise(node.start, ErrorMessages.NoCatchOrFinally); |
| } |
| |
| return this.finishNode(node, "TryStatement"); |
| } |
| |
| parseVarStatement(node, kind) { |
| this.next(); |
| this.parseVar(node, false, kind); |
| this.semicolon(); |
| return this.finishNode(node, "VariableDeclaration"); |
| } |
| |
| parseWhileStatement(node) { |
| this.next(); |
| node.test = this.parseHeaderExpression(); |
| this.state.labels.push(loopLabel); |
| node.body = this.withSmartMixTopicForbiddingContext(() => this.parseStatement("while")); |
| this.state.labels.pop(); |
| return this.finishNode(node, "WhileStatement"); |
| } |
| |
| parseWithStatement(node) { |
| if (this.state.strict) { |
| this.raise(this.state.start, ErrorMessages.StrictWith); |
| } |
| |
| this.next(); |
| node.object = this.parseHeaderExpression(); |
| node.body = this.withSmartMixTopicForbiddingContext(() => this.parseStatement("with")); |
| return this.finishNode(node, "WithStatement"); |
| } |
| |
| parseEmptyStatement(node) { |
| this.next(); |
| return this.finishNode(node, "EmptyStatement"); |
| } |
| |
| parseLabeledStatement(node, maybeName, expr, context) { |
| for (const label of this.state.labels) { |
| if (label.name === maybeName) { |
| this.raise(expr.start, ErrorMessages.LabelRedeclaration, maybeName); |
| } |
| } |
| |
| const kind = tokenIsLoop(this.state.type) ? "loop" : this.match(67) ? "switch" : null; |
| |
| for (let i = this.state.labels.length - 1; i >= 0; i--) { |
| const label = this.state.labels[i]; |
| |
| if (label.statementStart === node.start) { |
| label.statementStart = this.state.start; |
| label.kind = kind; |
| } else { |
| break; |
| } |
| } |
| |
| this.state.labels.push({ |
| name: maybeName, |
| kind: kind, |
| statementStart: this.state.start |
| }); |
| node.body = this.parseStatement(context ? context.indexOf("label") === -1 ? context + "label" : context : "label"); |
| this.state.labels.pop(); |
| node.label = expr; |
| return this.finishNode(node, "LabeledStatement"); |
| } |
| |
| parseExpressionStatement(node, expr) { |
| node.expression = expr; |
| this.semicolon(); |
| return this.finishNode(node, "ExpressionStatement"); |
| } |
| |
| parseBlock(allowDirectives = false, createNewLexicalScope = true, afterBlockParse) { |
| const node = this.startNode(); |
| |
| if (allowDirectives) { |
| this.state.strictErrors.clear(); |
| } |
| |
| this.expect(5); |
| |
| if (createNewLexicalScope) { |
| this.scope.enter(SCOPE_OTHER); |
| } |
| |
| this.parseBlockBody(node, allowDirectives, false, 8, afterBlockParse); |
| |
| if (createNewLexicalScope) { |
| this.scope.exit(); |
| } |
| |
| return this.finishNode(node, "BlockStatement"); |
| } |
| |
| isValidDirective(stmt) { |
| return stmt.type === "ExpressionStatement" && stmt.expression.type === "StringLiteral" && !stmt.expression.extra.parenthesized; |
| } |
| |
| parseBlockBody(node, allowDirectives, topLevel, end, afterBlockParse) { |
| const body = node.body = []; |
| const directives = node.directives = []; |
| this.parseBlockOrModuleBlockBody(body, allowDirectives ? directives : undefined, topLevel, end, afterBlockParse); |
| } |
| |
| parseBlockOrModuleBlockBody(body, directives, topLevel, end, afterBlockParse) { |
| const oldStrict = this.state.strict; |
| let hasStrictModeDirective = false; |
| let parsedNonDirective = false; |
| |
| while (!this.match(end)) { |
| const stmt = this.parseStatement(null, topLevel); |
| |
| if (directives && !parsedNonDirective) { |
| if (this.isValidDirective(stmt)) { |
| const directive = this.stmtToDirective(stmt); |
| directives.push(directive); |
| |
| if (!hasStrictModeDirective && directive.value.value === "use strict") { |
| hasStrictModeDirective = true; |
| this.setStrict(true); |
| } |
| |
| continue; |
| } |
| |
| parsedNonDirective = true; |
| this.state.strictErrors.clear(); |
| } |
| |
| body.push(stmt); |
| } |
| |
| if (afterBlockParse) { |
| afterBlockParse.call(this, hasStrictModeDirective); |
| } |
| |
| if (!oldStrict) { |
| this.setStrict(false); |
| } |
| |
| this.next(); |
| } |
| |
| parseFor(node, init) { |
| node.init = init; |
| this.semicolon(false); |
| node.test = this.match(13) ? null : this.parseExpression(); |
| this.semicolon(false); |
| node.update = this.match(11) ? null : this.parseExpression(); |
| this.expect(11); |
| node.body = this.withSmartMixTopicForbiddingContext(() => this.parseStatement("for")); |
| this.scope.exit(); |
| this.state.labels.pop(); |
| return this.finishNode(node, "ForStatement"); |
| } |
| |
| parseForIn(node, init, awaitAt) { |
| const isForIn = this.match(54); |
| this.next(); |
| |
| if (isForIn) { |
| if (awaitAt > -1) this.unexpected(awaitAt); |
| } else { |
| node.await = awaitAt > -1; |
| } |
| |
| if (init.type === "VariableDeclaration" && init.declarations[0].init != null && (!isForIn || this.state.strict || init.kind !== "var" || init.declarations[0].id.type !== "Identifier")) { |
| this.raise(init.start, ErrorMessages.ForInOfLoopInitializer, isForIn ? "for-in" : "for-of"); |
| } else if (init.type === "AssignmentPattern") { |
| this.raise(init.start, ErrorMessages.InvalidLhs, "for-loop"); |
| } |
| |
| node.left = init; |
| node.right = isForIn ? this.parseExpression() : this.parseMaybeAssignAllowIn(); |
| this.expect(11); |
| node.body = this.withSmartMixTopicForbiddingContext(() => this.parseStatement("for")); |
| this.scope.exit(); |
| this.state.labels.pop(); |
| return this.finishNode(node, isForIn ? "ForInStatement" : "ForOfStatement"); |
| } |
| |
| parseVar(node, isFor, kind) { |
| const declarations = node.declarations = []; |
| const isTypescript = this.hasPlugin("typescript"); |
| node.kind = kind; |
| |
| for (;;) { |
| const decl = this.startNode(); |
| this.parseVarId(decl, kind); |
| |
| if (this.eat(29)) { |
| decl.init = isFor ? this.parseMaybeAssignDisallowIn() : this.parseMaybeAssignAllowIn(); |
| } else { |
| if (kind === "const" && !(this.match(54) || this.isContextual(97))) { |
| if (!isTypescript) { |
| this.raise(this.state.lastTokEnd, ErrorMessages.DeclarationMissingInitializer, "Const declarations"); |
| } |
| } else if (decl.id.type !== "Identifier" && !(isFor && (this.match(54) || this.isContextual(97)))) { |
| this.raise(this.state.lastTokEnd, ErrorMessages.DeclarationMissingInitializer, "Complex binding patterns"); |
| } |
| |
| decl.init = null; |
| } |
| |
| declarations.push(this.finishNode(decl, "VariableDeclarator")); |
| if (!this.eat(12)) break; |
| } |
| |
| return node; |
| } |
| |
| parseVarId(decl, kind) { |
| decl.id = this.parseBindingAtom(); |
| this.checkLVal(decl.id, "variable declaration", kind === "var" ? BIND_VAR : BIND_LEXICAL, undefined, kind !== "var"); |
| } |
| |
| parseFunction(node, statement = FUNC_NO_FLAGS, isAsync = false) { |
| const isStatement = statement & FUNC_STATEMENT; |
| const isHangingStatement = statement & FUNC_HANGING_STATEMENT; |
| const requireId = !!isStatement && !(statement & FUNC_NULLABLE_ID); |
| this.initFunction(node, isAsync); |
| |
| if (this.match(51) && isHangingStatement) { |
| this.raise(this.state.start, ErrorMessages.GeneratorInSingleStatementContext); |
| } |
| |
| node.generator = this.eat(51); |
| |
| if (isStatement) { |
| node.id = this.parseFunctionId(requireId); |
| } |
| |
| const oldMaybeInArrowParameters = this.state.maybeInArrowParameters; |
| this.state.maybeInArrowParameters = false; |
| this.scope.enter(SCOPE_FUNCTION); |
| this.prodParam.enter(functionFlags(isAsync, node.generator)); |
| |
| if (!isStatement) { |
| node.id = this.parseFunctionId(); |
| } |
| |
| this.parseFunctionParams(node, false); |
| this.withSmartMixTopicForbiddingContext(() => { |
| this.parseFunctionBodyAndFinish(node, isStatement ? "FunctionDeclaration" : "FunctionExpression"); |
| }); |
| this.prodParam.exit(); |
| this.scope.exit(); |
| |
| if (isStatement && !isHangingStatement) { |
| this.registerFunctionStatementId(node); |
| } |
| |
| this.state.maybeInArrowParameters = oldMaybeInArrowParameters; |
| return node; |
| } |
| |
| parseFunctionId(requireId) { |
| return requireId || tokenIsIdentifier(this.state.type) ? this.parseIdentifier() : null; |
| } |
| |
| parseFunctionParams(node, allowModifiers) { |
| this.expect(10); |
| this.expressionScope.enter(newParameterDeclarationScope()); |
| node.params = this.parseBindingList(11, 41, false, allowModifiers); |
| this.expressionScope.exit(); |
| } |
| |
| registerFunctionStatementId(node) { |
| if (!node.id) return; |
| this.scope.declareName(node.id.name, this.state.strict || node.generator || node.async ? this.scope.treatFunctionsAsVar ? BIND_VAR : BIND_LEXICAL : BIND_FUNCTION, node.id.start); |
| } |
| |
| parseClass(node, isStatement, optionalId) { |
| this.next(); |
| this.takeDecorators(node); |
| const oldStrict = this.state.strict; |
| this.state.strict = true; |
| this.parseClassId(node, isStatement, optionalId); |
| this.parseClassSuper(node); |
| node.body = this.parseClassBody(!!node.superClass, oldStrict); |
| return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression"); |
| } |
| |
| isClassProperty() { |
| return this.match(29) || this.match(13) || this.match(8); |
| } |
| |
| isClassMethod() { |
| return this.match(10); |
| } |
| |
| isNonstaticConstructor(method) { |
| return !method.computed && !method.static && (method.key.name === "constructor" || method.key.value === "constructor"); |
| } |
| |
| parseClassBody(hadSuperClass, oldStrict) { |
| this.classScope.enter(); |
| const state = { |
| hadConstructor: false, |
| hadSuperClass |
| }; |
| let decorators = []; |
| const classBody = this.startNode(); |
| classBody.body = []; |
| this.expect(5); |
| this.withSmartMixTopicForbiddingContext(() => { |
| while (!this.match(8)) { |
| if (this.eat(13)) { |
| if (decorators.length > 0) { |
| throw this.raise(this.state.lastTokEnd, ErrorMessages.DecoratorSemicolon); |
| } |
| |
| continue; |
| } |
| |
| if (this.match(26)) { |
| decorators.push(this.parseDecorator()); |
| continue; |
| } |
| |
| const member = this.startNode(); |
| |
| if (decorators.length) { |
| member.decorators = decorators; |
| this.resetStartLocationFromNode(member, decorators[0]); |
| decorators = []; |
| } |
| |
| this.parseClassMember(classBody, member, state); |
| |
| if (member.kind === "constructor" && member.decorators && member.decorators.length > 0) { |
| this.raise(member.start, ErrorMessages.DecoratorConstructor); |
| } |
| } |
| }); |
| this.state.strict = oldStrict; |
| this.next(); |
| |
| if (decorators.length) { |
| throw this.raise(this.state.start, ErrorMessages.TrailingDecorator); |
| } |
| |
| this.classScope.exit(); |
| return this.finishNode(classBody, "ClassBody"); |
| } |
| |
| parseClassMemberFromModifier(classBody, member) { |
| const key = this.parseIdentifier(true); |
| |
| if (this.isClassMethod()) { |
| const method = member; |
| method.kind = "method"; |
| method.computed = false; |
| method.key = key; |
| method.static = false; |
| this.pushClassMethod(classBody, method, false, false, false, false); |
| return true; |
| } else if (this.isClassProperty()) { |
| const prop = member; |
| prop.computed = false; |
| prop.key = key; |
| prop.static = false; |
| classBody.body.push(this.parseClassProperty(prop)); |
| return true; |
| } |
| |
| this.resetPreviousNodeTrailingComments(key); |
| return false; |
| } |
| |
| parseClassMember(classBody, member, state) { |
| const isStatic = this.isContextual(100); |
| |
| if (isStatic) { |
| if (this.parseClassMemberFromModifier(classBody, member)) { |
| return; |
| } |
| |
| if (this.eat(5)) { |
| this.parseClassStaticBlock(classBody, member); |
| return; |
| } |
| } |
| |
| this.parseClassMemberWithIsStatic(classBody, member, state, isStatic); |
| } |
| |
| parseClassMemberWithIsStatic(classBody, member, state, isStatic) { |
| const publicMethod = member; |
| const privateMethod = member; |
| const publicProp = member; |
| const privateProp = member; |
| const method = publicMethod; |
| const publicMember = publicMethod; |
| member.static = isStatic; |
| this.parsePropertyNamePrefixOperator(member); |
| |
| if (this.eat(51)) { |
| method.kind = "method"; |
| const isPrivateName = this.match(130); |
| this.parseClassElementName(method); |
| |
| if (isPrivateName) { |
| this.pushClassPrivateMethod(classBody, privateMethod, true, false); |
| return; |
| } |
| |
| if (this.isNonstaticConstructor(publicMethod)) { |
| this.raise(publicMethod.key.start, ErrorMessages.ConstructorIsGenerator); |
| } |
| |
| this.pushClassMethod(classBody, publicMethod, true, false, false, false); |
| return; |
| } |
| |
| const isContextual = tokenIsIdentifier(this.state.type) && !this.state.containsEsc; |
| const isPrivate = this.match(130); |
| const key = this.parseClassElementName(member); |
| const maybeQuestionTokenStart = this.state.start; |
| this.parsePostMemberNameModifiers(publicMember); |
| |
| if (this.isClassMethod()) { |
| method.kind = "method"; |
| |
| if (isPrivate) { |
| this.pushClassPrivateMethod(classBody, privateMethod, false, false); |
| return; |
| } |
| |
| const isConstructor = this.isNonstaticConstructor(publicMethod); |
| let allowsDirectSuper = false; |
| |
| if (isConstructor) { |
| publicMethod.kind = "constructor"; |
| |
| if (state.hadConstructor && !this.hasPlugin("typescript")) { |
| this.raise(key.start, ErrorMessages.DuplicateConstructor); |
| } |
| |
| if (isConstructor && this.hasPlugin("typescript") && member.override) { |
| this.raise(key.start, ErrorMessages.OverrideOnConstructor); |
| } |
| |
| state.hadConstructor = true; |
| allowsDirectSuper = state.hadSuperClass; |
| } |
| |
| this.pushClassMethod(classBody, publicMethod, false, false, isConstructor, allowsDirectSuper); |
| } else if (this.isClassProperty()) { |
| if (isPrivate) { |
| this.pushClassPrivateProperty(classBody, privateProp); |
| } else { |
| this.pushClassProperty(classBody, publicProp); |
| } |
| } else if (isContextual && key.name === "async" && !this.isLineTerminator()) { |
| this.resetPreviousNodeTrailingComments(key); |
| const isGenerator = this.eat(51); |
| |
| if (publicMember.optional) { |
| this.unexpected(maybeQuestionTokenStart); |
| } |
| |
| method.kind = "method"; |
| const isPrivate = this.match(130); |
| this.parseClassElementName(method); |
| this.parsePostMemberNameModifiers(publicMember); |
| |
| if (isPrivate) { |
| this.pushClassPrivateMethod(classBody, privateMethod, isGenerator, true); |
| } else { |
| if (this.isNonstaticConstructor(publicMethod)) { |
| this.raise(publicMethod.key.start, ErrorMessages.ConstructorIsAsync); |
| } |
| |
| this.pushClassMethod(classBody, publicMethod, isGenerator, true, false, false); |
| } |
| } else if (isContextual && (key.name === "get" || key.name === "set") && !(this.match(51) && this.isLineTerminator())) { |
| this.resetPreviousNodeTrailingComments(key); |
| method.kind = key.name; |
| const isPrivate = this.match(130); |
| this.parseClassElementName(publicMethod); |
| |
| if (isPrivate) { |
| this.pushClassPrivateMethod(classBody, privateMethod, false, false); |
| } else { |
| if (this.isNonstaticConstructor(publicMethod)) { |
| this.raise(publicMethod.key.start, ErrorMessages.ConstructorIsAccessor); |
| } |
| |
| this.pushClassMethod(classBody, publicMethod, false, false, false, false); |
| } |
| |
| this.checkGetterSetterParams(publicMethod); |
| } else if (this.isLineTerminator()) { |
| if (isPrivate) { |
| this.pushClassPrivateProperty(classBody, privateProp); |
| } else { |
| this.pushClassProperty(classBody, publicProp); |
| } |
| } else { |
| this.unexpected(); |
| } |
| } |
| |
| parseClassElementName(member) { |
| const { |
| type, |
| value, |
| start |
| } = this.state; |
| |
| if ((type === 124 || type === 125) && member.static && value === "prototype") { |
| this.raise(start, ErrorMessages.StaticPrototype); |
| } |
| |
| if (type === 130) { |
| if (value === "constructor") { |
| this.raise(start, ErrorMessages.ConstructorClassPrivateField); |
| } |
| |
| const key = this.parsePrivateName(); |
| member.key = key; |
| return key; |
| } |
| |
| return this.parsePropertyName(member); |
| } |
| |
| parseClassStaticBlock(classBody, member) { |
| var _member$decorators; |
| |
| this.scope.enter(SCOPE_CLASS | SCOPE_STATIC_BLOCK | SCOPE_SUPER); |
| const oldLabels = this.state.labels; |
| this.state.labels = []; |
| this.prodParam.enter(PARAM); |
| const body = member.body = []; |
| this.parseBlockOrModuleBlockBody(body, undefined, false, 8); |
| this.prodParam.exit(); |
| this.scope.exit(); |
| this.state.labels = oldLabels; |
| classBody.body.push(this.finishNode(member, "StaticBlock")); |
| |
| if ((_member$decorators = member.decorators) != null && _member$decorators.length) { |
| this.raise(member.start, ErrorMessages.DecoratorStaticBlock); |
| } |
| } |
| |
| pushClassProperty(classBody, prop) { |
| if (!prop.computed && (prop.key.name === "constructor" || prop.key.value === "constructor")) { |
| this.raise(prop.key.start, ErrorMessages.ConstructorClassField); |
| } |
| |
| classBody.body.push(this.parseClassProperty(prop)); |
| } |
| |
| pushClassPrivateProperty(classBody, prop) { |
| const node = this.parseClassPrivateProperty(prop); |
| classBody.body.push(node); |
| this.classScope.declarePrivateName(this.getPrivateNameSV(node.key), CLASS_ELEMENT_OTHER, node.key.start); |
| } |
| |
| pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper) { |
| classBody.body.push(this.parseMethod(method, isGenerator, isAsync, isConstructor, allowsDirectSuper, "ClassMethod", true)); |
| } |
| |
| pushClassPrivateMethod(classBody, method, isGenerator, isAsync) { |
| const node = this.parseMethod(method, isGenerator, isAsync, false, false, "ClassPrivateMethod", true); |
| classBody.body.push(node); |
| const kind = node.kind === "get" ? node.static ? CLASS_ELEMENT_STATIC_GETTER : CLASS_ELEMENT_INSTANCE_GETTER : node.kind === "set" ? node.static ? CLASS_ELEMENT_STATIC_SETTER : CLASS_ELEMENT_INSTANCE_SETTER : CLASS_ELEMENT_OTHER; |
| this.declareClassPrivateMethodInScope(node, kind); |
| } |
| |
| declareClassPrivateMethodInScope(node, kind) { |
| this.classScope.declarePrivateName(this.getPrivateNameSV(node.key), kind, node.key.start); |
| } |
| |
| parsePostMemberNameModifiers(methodOrProp) {} |
| |
| parseClassPrivateProperty(node) { |
| this.parseInitializer(node); |
| this.semicolon(); |
| return this.finishNode(node, "ClassPrivateProperty"); |
| } |
| |
| parseClassProperty(node) { |
| this.parseInitializer(node); |
| this.semicolon(); |
| return this.finishNode(node, "ClassProperty"); |
| } |
| |
| parseInitializer(node) { |
| this.scope.enter(SCOPE_CLASS | SCOPE_SUPER); |
| this.expressionScope.enter(newExpressionScope()); |
| this.prodParam.enter(PARAM); |
| node.value = this.eat(29) ? this.parseMaybeAssignAllowIn() : null; |
| this.expressionScope.exit(); |
| this.prodParam.exit(); |
| this.scope.exit(); |
| } |
| |
| parseClassId(node, isStatement, optionalId, bindingType = BIND_CLASS) { |
| if (tokenIsIdentifier(this.state.type)) { |
| node.id = this.parseIdentifier(); |
| |
| if (isStatement) { |
| this.checkLVal(node.id, "class name", bindingType); |
| } |
| } else { |
| if (optionalId || !isStatement) { |
| node.id = null; |
| } else { |
| this.unexpected(null, ErrorMessages.MissingClassName); |
| } |
| } |
| } |
| |
| parseClassSuper(node) { |
| node.superClass = this.eat(77) ? this.parseExprSubscripts() : null; |
| } |
| |
| parseExport(node) { |
| const hasDefault = this.maybeParseExportDefaultSpecifier(node); |
| const parseAfterDefault = !hasDefault || this.eat(12); |
| const hasStar = parseAfterDefault && this.eatExportStar(node); |
| const hasNamespace = hasStar && this.maybeParseExportNamespaceSpecifier(node); |
| const parseAfterNamespace = parseAfterDefault && (!hasNamespace || this.eat(12)); |
| const isFromRequired = hasDefault || hasStar; |
| |
| if (hasStar && !hasNamespace) { |
| if (hasDefault) this.unexpected(); |
| this.parseExportFrom(node, true); |
| return this.finishNode(node, "ExportAllDeclaration"); |
| } |
| |
| const hasSpecifiers = this.maybeParseExportNamedSpecifiers(node); |
| |
| if (hasDefault && parseAfterDefault && !hasStar && !hasSpecifiers || hasNamespace && parseAfterNamespace && !hasSpecifiers) { |
| throw this.unexpected(null, 5); |
| } |
| |
| let hasDeclaration; |
| |
| if (isFromRequired || hasSpecifiers) { |
| hasDeclaration = false; |
| this.parseExportFrom(node, isFromRequired); |
| } else { |
| hasDeclaration = this.maybeParseExportDeclaration(node); |
| } |
| |
| if (isFromRequired || hasSpecifiers || hasDeclaration) { |
| this.checkExport(node, true, false, !!node.source); |
| return this.finishNode(node, "ExportNamedDeclaration"); |
| } |
| |
| if (this.eat(61)) { |
| node.declaration = this.parseExportDefaultExpression(); |
| this.checkExport(node, true, true); |
| return this.finishNode(node, "ExportDefaultDeclaration"); |
| } |
| |
| throw this.unexpected(null, 5); |
| } |
| |
| eatExportStar(node) { |
| return this.eat(51); |
| } |
| |
| maybeParseExportDefaultSpecifier(node) { |
| if (this.isExportDefaultSpecifier()) { |
| this.expectPlugin("exportDefaultFrom"); |
| const specifier = this.startNode(); |
| specifier.exported = this.parseIdentifier(true); |
| node.specifiers = [this.finishNode(specifier, "ExportDefaultSpecifier")]; |
| return true; |
| } |
| |
| return false; |
| } |
| |
| maybeParseExportNamespaceSpecifier(node) { |
| if (this.isContextual(89)) { |
| if (!node.specifiers) node.specifiers = []; |
| const specifier = this.startNodeAt(this.state.lastTokStart, this.state.lastTokStartLoc); |
| this.next(); |
| specifier.exported = this.parseModuleExportName(); |
| node.specifiers.push(this.finishNode(specifier, "ExportNamespaceSpecifier")); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| maybeParseExportNamedSpecifiers(node) { |
| if (this.match(5)) { |
| if (!node.specifiers) node.specifiers = []; |
| const isTypeExport = node.exportKind === "type"; |
| node.specifiers.push(...this.parseExportSpecifiers(isTypeExport)); |
| node.source = null; |
| node.declaration = null; |
| |
| if (this.hasPlugin("importAssertions")) { |
| node.assertions = []; |
| } |
| |
| return true; |
| } |
| |
| return false; |
| } |
| |
| maybeParseExportDeclaration(node) { |
| if (this.shouldParseExportDeclaration()) { |
| node.specifiers = []; |
| node.source = null; |
| |
| if (this.hasPlugin("importAssertions")) { |
| node.assertions = []; |
| } |
| |
| node.declaration = this.parseExportDeclaration(node); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| isAsyncFunction() { |
| if (!this.isContextual(91)) return false; |
| const next = this.nextTokenStart(); |
| return !lineBreak.test(this.input.slice(this.state.pos, next)) && this.isUnparsedContextual(next, "function"); |
| } |
| |
| parseExportDefaultExpression() { |
| const expr = this.startNode(); |
| const isAsync = this.isAsyncFunction(); |
| |
| if (this.match(64) || isAsync) { |
| this.next(); |
| |
| if (isAsync) { |
| this.next(); |
| } |
| |
| return this.parseFunction(expr, FUNC_STATEMENT | FUNC_NULLABLE_ID, isAsync); |
| } else if (this.match(76)) { |
| return this.parseClass(expr, true, true); |
| } else if (this.match(26)) { |
| if (this.hasPlugin("decorators") && this.getPluginOption("decorators", "decoratorsBeforeExport")) { |
| this.raise(this.state.start, ErrorMessages.DecoratorBeforeExport); |
| } |
| |
| this.parseDecorators(false); |
| return this.parseClass(expr, true, true); |
| } else if (this.match(71) || this.match(70) || this.isLet()) { |
| throw this.raise(this.state.start, ErrorMessages.UnsupportedDefaultExport); |
| } else { |
| const res = this.parseMaybeAssignAllowIn(); |
| this.semicolon(); |
| return res; |
| } |
| } |
| |
| parseExportDeclaration(node) { |
| return this.parseStatement(null); |
| } |
| |
| isExportDefaultSpecifier() { |
| const { |
| type |
| } = this.state; |
| |
| if (tokenIsIdentifier(type)) { |
| if (type === 91 && !this.state.containsEsc || type === 95) { |
| return false; |
| } |
| |
| if ((type === 122 || type === 121) && !this.state.containsEsc) { |
| const { |
| type: nextType |
| } = this.lookahead(); |
| |
| if (tokenIsIdentifier(nextType) && nextType !== 93 || nextType === 5) { |
| this.expectOnePlugin(["flow", "typescript"]); |
| return false; |
| } |
| } |
| } else if (!this.match(61)) { |
| return false; |
| } |
| |
| const next = this.nextTokenStart(); |
| const hasFrom = this.isUnparsedContextual(next, "from"); |
| |
| if (this.input.charCodeAt(next) === 44 || tokenIsIdentifier(this.state.type) && hasFrom) { |
| return true; |
| } |
| |
| if (this.match(61) && hasFrom) { |
| const nextAfterFrom = this.input.charCodeAt(this.nextTokenStartSince(next + 4)); |
| return nextAfterFrom === 34 || nextAfterFrom === 39; |
| } |
| |
| return false; |
| } |
| |
| parseExportFrom(node, expect) { |
| if (this.eatContextual(93)) { |
| node.source = this.parseImportSource(); |
| this.checkExport(node); |
| const assertions = this.maybeParseImportAssertions(); |
| |
| if (assertions) { |
| node.assertions = assertions; |
| } |
| } else if (expect) { |
| this.unexpected(); |
| } |
| |
| this.semicolon(); |
| } |
| |
| shouldParseExportDeclaration() { |
| const { |
| type |
| } = this.state; |
| |
| if (type === 26) { |
| this.expectOnePlugin(["decorators", "decorators-legacy"]); |
| |
| if (this.hasPlugin("decorators")) { |
| if (this.getPluginOption("decorators", "decoratorsBeforeExport")) { |
| this.unexpected(this.state.start, ErrorMessages.DecoratorBeforeExport); |
| } else { |
| return true; |
| } |
| } |
| } |
| |
| return type === 70 || type === 71 || type === 64 || type === 76 || this.isLet() || this.isAsyncFunction(); |
| } |
| |
| checkExport(node, checkNames, isDefault, isFrom) { |
| if (checkNames) { |
| if (isDefault) { |
| this.checkDuplicateExports(node, "default"); |
| |
| if (this.hasPlugin("exportDefaultFrom")) { |
| var _declaration$extra; |
| |
| const declaration = node.declaration; |
| |
| if (declaration.type === "Identifier" && declaration.name === "from" && declaration.end - declaration.start === 4 && !((_declaration$extra = declaration.extra) != null && _declaration$extra.parenthesized)) { |
| this.raise(declaration.start, ErrorMessages.ExportDefaultFromAsIdentifier); |
| } |
| } |
| } else if (node.specifiers && node.specifiers.length) { |
| for (const specifier of node.specifiers) { |
| const { |
| exported |
| } = specifier; |
| const exportedName = exported.type === "Identifier" ? exported.name : exported.value; |
| this.checkDuplicateExports(specifier, exportedName); |
| |
| if (!isFrom && specifier.local) { |
| const { |
| local |
| } = specifier; |
| |
| if (local.type !== "Identifier") { |
| this.raise(specifier.start, ErrorMessages.ExportBindingIsString, local.value, exportedName); |
| } else { |
| this.checkReservedWord(local.name, local.start, true, false); |
| this.scope.checkLocalExport(local); |
| } |
| } |
| } |
| } else if (node.declaration) { |
| if (node.declaration.type === "FunctionDeclaration" || node.declaration.type === "ClassDeclaration") { |
| const id = node.declaration.id; |
| if (!id) throw new Error("Assertion failure"); |
| this.checkDuplicateExports(node, id.name); |
| } else if (node.declaration.type === "VariableDeclaration") { |
| for (const declaration of node.declaration.declarations) { |
| this.checkDeclaration(declaration.id); |
| } |
| } |
| } |
| } |
| |
| const currentContextDecorators = this.state.decoratorStack[this.state.decoratorStack.length - 1]; |
| |
| if (currentContextDecorators.length) { |
| throw this.raise(node.start, ErrorMessages.UnsupportedDecoratorExport); |
| } |
| } |
| |
| checkDeclaration(node) { |
| if (node.type === "Identifier") { |
| this.checkDuplicateExports(node, node.name); |
| } else if (node.type === "ObjectPattern") { |
| for (const prop of node.properties) { |
| this.checkDeclaration(prop); |
| } |
| } else if (node.type === "ArrayPattern") { |
| for (const elem of node.elements) { |
| if (elem) { |
| this.checkDeclaration(elem); |
| } |
| } |
| } else if (node.type === "ObjectProperty") { |
| this.checkDeclaration(node.value); |
| } else if (node.type === "RestElement") { |
| this.checkDeclaration(node.argument); |
| } else if (node.type === "AssignmentPattern") { |
| this.checkDeclaration(node.left); |
| } |
| } |
| |
| checkDuplicateExports(node, name) { |
| if (this.exportedIdentifiers.has(name)) { |
| this.raise(node.start, name === "default" ? ErrorMessages.DuplicateDefaultExport : ErrorMessages.DuplicateExport, name); |
| } |
| |
| this.exportedIdentifiers.add(name); |
| } |
| |
| parseExportSpecifiers(isInTypeExport) { |
| const nodes = []; |
| let first = true; |
| this.expect(5); |
| |
| while (!this.eat(8)) { |
| if (first) { |
| first = false; |
| } else { |
| this.expect(12); |
| if (this.eat(8)) break; |
| } |
| |
| const isMaybeTypeOnly = this.isContextual(122); |
| const isString = this.match(125); |
| const node = this.startNode(); |
| node.local = this.parseModuleExportName(); |
| nodes.push(this.parseExportSpecifier(node, isString, isInTypeExport, isMaybeTypeOnly)); |
| } |
| |
| return nodes; |
| } |
| |
| parseExportSpecifier(node, isString, isInTypeExport, isMaybeTypeOnly) { |
| if (this.eatContextual(89)) { |
| node.exported = this.parseModuleExportName(); |
| } else if (isString) { |
| node.exported = cloneStringLiteral(node.local); |
| } else if (!node.exported) { |
| node.exported = cloneIdentifier(node.local); |
| } |
| |
| return this.finishNode(node, "ExportSpecifier"); |
| } |
| |
| parseModuleExportName() { |
| if (this.match(125)) { |
| const result = this.parseStringLiteral(this.state.value); |
| const surrogate = result.value.match(loneSurrogate); |
| |
| if (surrogate) { |
| this.raise(result.start, ErrorMessages.ModuleExportNameHasLoneSurrogate, surrogate[0].charCodeAt(0).toString(16)); |
| } |
| |
| return result; |
| } |
| |
| return this.parseIdentifier(true); |
| } |
| |
| parseImport(node) { |
| node.specifiers = []; |
| |
| if (!this.match(125)) { |
| const hasDefault = this.maybeParseDefaultImportSpecifier(node); |
| const parseNext = !hasDefault || this.eat(12); |
| const hasStar = parseNext && this.maybeParseStarImportSpecifier(node); |
| if (parseNext && !hasStar) this.parseNamedImportSpecifiers(node); |
| this.expectContextual(93); |
| } |
| |
| node.source = this.parseImportSource(); |
| const assertions = this.maybeParseImportAssertions(); |
| |
| if (assertions) { |
| node.assertions = assertions; |
| } else { |
| const attributes = this.maybeParseModuleAttributes(); |
| |
| if (attributes) { |
| node.attributes = attributes; |
| } |
| } |
| |
| this.semicolon(); |
| return this.finishNode(node, "ImportDeclaration"); |
| } |
| |
| parseImportSource() { |
| if (!this.match(125)) this.unexpected(); |
| return this.parseExprAtom(); |
| } |
| |
| shouldParseDefaultImport(node) { |
| return tokenIsIdentifier(this.state.type); |
| } |
| |
| parseImportSpecifierLocal(node, specifier, type, contextDescription) { |
| specifier.local = this.parseIdentifier(); |
| this.checkLVal(specifier.local, contextDescription, BIND_LEXICAL); |
| node.specifiers.push(this.finishNode(specifier, type)); |
| } |
| |
| parseAssertEntries() { |
| const attrs = []; |
| const attrNames = new Set(); |
| |
| do { |
| if (this.match(8)) { |
| break; |
| } |
| |
| const node = this.startNode(); |
| const keyName = this.state.value; |
| |
| if (attrNames.has(keyName)) { |
| this.raise(this.state.start, ErrorMessages.ModuleAttributesWithDuplicateKeys, keyName); |
| } |
| |
| attrNames.add(keyName); |
| |
| if (this.match(125)) { |
| node.key = this.parseStringLiteral(keyName); |
| } else { |
| node.key = this.parseIdentifier(true); |
| } |
| |
| this.expect(14); |
| |
| if (!this.match(125)) { |
| throw this.unexpected(this.state.start, ErrorMessages.ModuleAttributeInvalidValue); |
| } |
| |
| node.value = this.parseStringLiteral(this.state.value); |
| this.finishNode(node, "ImportAttribute"); |
| attrs.push(node); |
| } while (this.eat(12)); |
| |
| return attrs; |
| } |
| |
| maybeParseModuleAttributes() { |
| if (this.match(72) && !this.hasPrecedingLineBreak()) { |
| this.expectPlugin("moduleAttributes"); |
| this.next(); |
| } else { |
| if (this.hasPlugin("moduleAttributes")) return []; |
| return null; |
| } |
| |
| const attrs = []; |
| const attributes = new Set(); |
| |
| do { |
| const node = this.startNode(); |
| node.key = this.parseIdentifier(true); |
| |
| if (node.key.name !== "type") { |
| this.raise(node.key.start, ErrorMessages.ModuleAttributeDifferentFromType, node.key.name); |
| } |
| |
| if (attributes.has(node.key.name)) { |
| this.raise(node.key.start, ErrorMessages.ModuleAttributesWithDuplicateKeys, node.key.name); |
| } |
| |
| attributes.add(node.key.name); |
| this.expect(14); |
| |
| if (!this.match(125)) { |
| throw this.unexpected(this.state.start, ErrorMessages.ModuleAttributeInvalidValue); |
| } |
| |
| node.value = this.parseStringLiteral(this.state.value); |
| this.finishNode(node, "ImportAttribute"); |
| attrs.push(node); |
| } while (this.eat(12)); |
| |
| return attrs; |
| } |
| |
| maybeParseImportAssertions() { |
| if (this.isContextual(90) && !this.hasPrecedingLineBreak()) { |
| this.expectPlugin("importAssertions"); |
| this.next(); |
| } else { |
| if (this.hasPlugin("importAssertions")) return []; |
| return null; |
| } |
| |
| this.eat(5); |
| const attrs = this.parseAssertEntries(); |
| this.eat(8); |
| return attrs; |
| } |
| |
| maybeParseDefaultImportSpecifier(node) { |
| if (this.shouldParseDefaultImport(node)) { |
| this.parseImportSpecifierLocal(node, this.startNode(), "ImportDefaultSpecifier", "default import specifier"); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| maybeParseStarImportSpecifier(node) { |
| if (this.match(51)) { |
| const specifier = this.startNode(); |
| this.next(); |
| this.expectContextual(89); |
| this.parseImportSpecifierLocal(node, specifier, "ImportNamespaceSpecifier", "import namespace specifier"); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| parseNamedImportSpecifiers(node) { |
| let first = true; |
| this.expect(5); |
| |
| while (!this.eat(8)) { |
| if (first) { |
| first = false; |
| } else { |
| if (this.eat(14)) { |
| throw this.raise(this.state.start, ErrorMessages.DestructureNamedImport); |
| } |
| |
| this.expect(12); |
| if (this.eat(8)) break; |
| } |
| |
| const specifier = this.startNode(); |
| const importedIsString = this.match(125); |
| const isMaybeTypeOnly = this.isContextual(122); |
| specifier.imported = this.parseModuleExportName(); |
| const importSpecifier = this.parseImportSpecifier(specifier, importedIsString, node.importKind === "type" || node.importKind === "typeof", isMaybeTypeOnly); |
| node.specifiers.push(importSpecifier); |
| } |
| } |
| |
| parseImportSpecifier(specifier, importedIsString, isInTypeOnlyImport, isMaybeTypeOnly) { |
| if (this.eatContextual(89)) { |
| specifier.local = this.parseIdentifier(); |
| } else { |
| const { |
| imported |
| } = specifier; |
| |
| if (importedIsString) { |
| throw this.raise(specifier.start, ErrorMessages.ImportBindingIsString, imported.value); |
| } |
| |
| this.checkReservedWord(imported.name, specifier.start, true, true); |
| |
| if (!specifier.local) { |
| specifier.local = cloneIdentifier(imported); |
| } |
| } |
| |
| this.checkLVal(specifier.local, "import specifier", BIND_LEXICAL); |
| return this.finishNode(specifier, "ImportSpecifier"); |
| } |
| |
| isThisParam(param) { |
| return param.type === "Identifier" && param.name === "this"; |
| } |
| |
| } |
| |
| class Parser extends StatementParser { |
| constructor(options, input) { |
| options = getOptions(options); |
| super(options, input); |
| this.options = options; |
| this.initializeScopes(); |
| this.plugins = pluginsMap(this.options.plugins); |
| this.filename = options.sourceFilename; |
| } |
| |
| getScopeHandler() { |
| return ScopeHandler; |
| } |
| |
| parse() { |
| this.enterInitialScopes(); |
| const file = this.startNode(); |
| const program = this.startNode(); |
| this.nextToken(); |
| file.errors = null; |
| this.parseTopLevel(file, program); |
| file.errors = this.state.errors; |
| return file; |
| } |
| |
| } |
| |
| function pluginsMap(plugins) { |
| const pluginMap = new Map(); |
| |
| for (const plugin of plugins) { |
| const [name, options] = Array.isArray(plugin) ? plugin : [plugin, {}]; |
| if (!pluginMap.has(name)) pluginMap.set(name, options || {}); |
| } |
| |
| return pluginMap; |
| } |
| |
| function parse(input, options) { |
| var _options; |
| |
| if (((_options = options) == null ? void 0 : _options.sourceType) === "unambiguous") { |
| options = Object.assign({}, options); |
| |
| try { |
| options.sourceType = "module"; |
| const parser = getParser(options, input); |
| const ast = parser.parse(); |
| |
| if (parser.sawUnambiguousESM) { |
| return ast; |
| } |
| |
| if (parser.ambiguousScriptDifferentAst) { |
| try { |
| options.sourceType = "script"; |
| return getParser(options, input).parse(); |
| } catch (_unused) {} |
| } else { |
| ast.program.sourceType = "script"; |
| } |
| |
| return ast; |
| } catch (moduleError) { |
| try { |
| options.sourceType = "script"; |
| return getParser(options, input).parse(); |
| } catch (_unused2) {} |
| |
| throw moduleError; |
| } |
| } else { |
| return getParser(options, input).parse(); |
| } |
| } |
| function parseExpression(input, options) { |
| const parser = getParser(options, input); |
| |
| if (parser.options.strictMode) { |
| parser.state.strict = true; |
| } |
| |
| return parser.getExpression(); |
| } |
| |
| function generateExportedTokenTypes(internalTokenTypes) { |
| const tokenTypes = {}; |
| |
| for (const typeName of Object.keys(internalTokenTypes)) { |
| tokenTypes[typeName] = getExportedToken(internalTokenTypes[typeName]); |
| } |
| |
| return tokenTypes; |
| } |
| |
| const tokTypes = generateExportedTokenTypes(tt); |
| |
| function getParser(options, input) { |
| let cls = Parser; |
| |
| if (options != null && options.plugins) { |
| validatePlugins(options.plugins); |
| cls = getParserClass(options.plugins); |
| } |
| |
| return new cls(options, input); |
| } |
| |
| const parserClassCache = {}; |
| |
| function getParserClass(pluginsFromOptions) { |
| const pluginList = mixinPluginNames.filter(name => hasPlugin(pluginsFromOptions, name)); |
| const key = pluginList.join("/"); |
| let cls = parserClassCache[key]; |
| |
| if (!cls) { |
| cls = Parser; |
| |
| for (const plugin of pluginList) { |
| cls = mixinPlugins[plugin](cls); |
| } |
| |
| parserClassCache[key] = cls; |
| } |
| |
| return cls; |
| } |
| |
| exports.parse = parse; |
| exports.parseExpression = parseExpression; |
| exports.tokTypes = tokTypes; |
| //# sourceMappingURL=index.js.map |