| "use strict"; |
| var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) { |
| if (k2 === undefined) k2 = k; |
| Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } }); |
| }) : (function(o, m, k, k2) { |
| if (k2 === undefined) k2 = k; |
| o[k2] = m[k]; |
| })); |
| var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) { |
| Object.defineProperty(o, "default", { enumerable: true, value: v }); |
| }) : function(o, v) { |
| o["default"] = v; |
| }); |
| var __importStar = (this && this.__importStar) || function (mod) { |
| if (mod && mod.__esModule) return mod; |
| var result = {}; |
| if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k); |
| __setModuleDefault(result, mod); |
| return result; |
| }; |
| Object.defineProperty(exports, "__esModule", { value: true }); |
| const utils_1 = require("@typescript-eslint/utils"); |
| const ts = __importStar(require("typescript")); |
| const util = __importStar(require("../util")); |
| exports.default = util.createRule({ |
| name: 'restrict-template-expressions', |
| meta: { |
| type: 'problem', |
| docs: { |
| description: 'Enforce template literal expressions to be of string type', |
| recommended: 'error', |
| requiresTypeChecking: true, |
| }, |
| messages: { |
| invalidType: 'Invalid type "{{type}}" of template literal expression.', |
| }, |
| schema: [ |
| { |
| type: 'object', |
| properties: { |
| allowNumber: { type: 'boolean' }, |
| allowBoolean: { type: 'boolean' }, |
| allowAny: { type: 'boolean' }, |
| allowNullish: { type: 'boolean' }, |
| allowRegExp: { type: 'boolean' }, |
| }, |
| }, |
| ], |
| }, |
| defaultOptions: [ |
| { |
| allowNumber: true, |
| }, |
| ], |
| create(context, [options]) { |
| const service = util.getParserServices(context); |
| const typeChecker = service.program.getTypeChecker(); |
| function isUnderlyingTypePrimitive(type) { |
| if (util.isTypeFlagSet(type, ts.TypeFlags.StringLike)) { |
| return true; |
| } |
| if (options.allowNumber && |
| util.isTypeFlagSet(type, ts.TypeFlags.NumberLike | ts.TypeFlags.BigIntLike)) { |
| return true; |
| } |
| if (options.allowBoolean && |
| util.isTypeFlagSet(type, ts.TypeFlags.BooleanLike)) { |
| return true; |
| } |
| if (options.allowAny && util.isTypeAnyType(type)) { |
| return true; |
| } |
| if (options.allowRegExp && |
| util.getTypeName(typeChecker, type) === 'RegExp') { |
| return true; |
| } |
| if (options.allowNullish && |
| util.isTypeFlagSet(type, ts.TypeFlags.Null | ts.TypeFlags.Undefined)) { |
| return true; |
| } |
| return false; |
| } |
| return { |
| TemplateLiteral(node) { |
| // don't check tagged template literals |
| if (node.parent.type === utils_1.AST_NODE_TYPES.TaggedTemplateExpression) { |
| return; |
| } |
| for (const expression of node.expressions) { |
| const expressionType = util.getConstrainedTypeAtLocation(typeChecker, service.esTreeNodeToTSNodeMap.get(expression)); |
| if (!isInnerUnionOrIntersectionConformingTo(expressionType, isUnderlyingTypePrimitive)) { |
| context.report({ |
| node: expression, |
| messageId: 'invalidType', |
| data: { type: typeChecker.typeToString(expressionType) }, |
| }); |
| } |
| } |
| }, |
| }; |
| function isInnerUnionOrIntersectionConformingTo(type, predicate) { |
| return rec(type); |
| function rec(innerType) { |
| if (innerType.isUnion()) { |
| return innerType.types.every(rec); |
| } |
| if (innerType.isIntersection()) { |
| return innerType.types.some(rec); |
| } |
| return predicate(innerType); |
| } |
| } |
| }, |
| }); |
| //# sourceMappingURL=restrict-template-expressions.js.map |