| "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 util = __importStar(require("../util")); |
| const utils_1 = require("@typescript-eslint/utils"); |
| exports.default = util.createRule({ |
| name: 'consistent-type-assertions', |
| meta: { |
| type: 'suggestion', |
| docs: { |
| description: 'Enforces consistent usage of type assertions', |
| recommended: false, |
| }, |
| messages: { |
| as: "Use 'as {{cast}}' instead of '<{{cast}}>'.", |
| 'angle-bracket': "Use '<{{cast}}>' instead of 'as {{cast}}'.", |
| never: 'Do not use any type assertions.', |
| unexpectedObjectTypeAssertion: 'Always prefer const x: T = { ... }.', |
| }, |
| schema: [ |
| { |
| oneOf: [ |
| { |
| type: 'object', |
| properties: { |
| assertionStyle: { |
| enum: ['never'], |
| }, |
| }, |
| additionalProperties: false, |
| required: ['assertionStyle'], |
| }, |
| { |
| type: 'object', |
| properties: { |
| assertionStyle: { |
| enum: ['as', 'angle-bracket'], |
| }, |
| objectLiteralTypeAssertions: { |
| enum: ['allow', 'allow-as-parameter', 'never'], |
| }, |
| }, |
| additionalProperties: false, |
| required: ['assertionStyle'], |
| }, |
| ], |
| }, |
| ], |
| }, |
| defaultOptions: [ |
| { |
| assertionStyle: 'as', |
| objectLiteralTypeAssertions: 'allow', |
| }, |
| ], |
| create(context, [options]) { |
| const sourceCode = context.getSourceCode(); |
| function isConst(node) { |
| if (node.type !== utils_1.AST_NODE_TYPES.TSTypeReference) { |
| return false; |
| } |
| return (node.typeName.type === utils_1.AST_NODE_TYPES.Identifier && |
| node.typeName.name === 'const'); |
| } |
| function reportIncorrectAssertionType(node) { |
| // If this node is `as const`, then don't report an error. |
| if (isConst(node.typeAnnotation)) { |
| return; |
| } |
| const messageId = options.assertionStyle; |
| context.report({ |
| node, |
| messageId, |
| data: messageId !== 'never' |
| ? { cast: sourceCode.getText(node.typeAnnotation) } |
| : {}, |
| }); |
| } |
| function checkType(node) { |
| switch (node.type) { |
| case utils_1.AST_NODE_TYPES.TSAnyKeyword: |
| case utils_1.AST_NODE_TYPES.TSUnknownKeyword: |
| return false; |
| case utils_1.AST_NODE_TYPES.TSTypeReference: |
| return ( |
| // Ignore `as const` and `<const>` |
| !isConst(node) || |
| // Allow qualified names which have dots between identifiers, `Foo.Bar` |
| node.typeName.type === utils_1.AST_NODE_TYPES.TSQualifiedName); |
| default: |
| return true; |
| } |
| } |
| function checkExpression(node) { |
| if (options.assertionStyle === 'never' || |
| options.objectLiteralTypeAssertions === 'allow' || |
| node.expression.type !== utils_1.AST_NODE_TYPES.ObjectExpression) { |
| return; |
| } |
| if (options.objectLiteralTypeAssertions === 'allow-as-parameter' && |
| node.parent && |
| (node.parent.type === utils_1.AST_NODE_TYPES.NewExpression || |
| node.parent.type === utils_1.AST_NODE_TYPES.CallExpression || |
| node.parent.type === utils_1.AST_NODE_TYPES.ThrowStatement || |
| node.parent.type === utils_1.AST_NODE_TYPES.AssignmentPattern || |
| node.parent.type === utils_1.AST_NODE_TYPES.JSXExpressionContainer)) { |
| return; |
| } |
| if (checkType(node.typeAnnotation) && |
| node.expression.type === utils_1.AST_NODE_TYPES.ObjectExpression) { |
| context.report({ |
| node, |
| messageId: 'unexpectedObjectTypeAssertion', |
| }); |
| } |
| } |
| return { |
| TSTypeAssertion(node) { |
| if (options.assertionStyle !== 'angle-bracket') { |
| reportIncorrectAssertionType(node); |
| return; |
| } |
| checkExpression(node); |
| }, |
| TSAsExpression(node) { |
| if (options.assertionStyle !== 'as') { |
| reportIncorrectAssertionType(node); |
| return; |
| } |
| checkExpression(node); |
| }, |
| }; |
| }, |
| }); |
| //# sourceMappingURL=consistent-type-assertions.js.map |