| "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 tsutils = __importStar(require("tsutils")); |
| const util = __importStar(require("../util")); |
| const util_1 = require("../util"); |
| exports.default = util.createRule({ |
| name: 'no-unsafe-member-access', |
| meta: { |
| type: 'problem', |
| docs: { |
| description: 'Disallows member access on any typed variables', |
| recommended: 'error', |
| requiresTypeChecking: true, |
| }, |
| messages: { |
| unsafeMemberExpression: 'Unsafe member access {{property}} on an `any` value.', |
| unsafeThisMemberExpression: [ |
| 'Unsafe member access {{property}} on an `any` value. `this` is typed as `any`.', |
| 'You can try to fix this by turning on the `noImplicitThis` compiler option, or adding a `this` parameter to the function.', |
| ].join('\n'), |
| unsafeComputedMemberAccess: 'Computed name {{property}} resolves to an any value.', |
| }, |
| schema: [], |
| }, |
| defaultOptions: [], |
| create(context) { |
| const { program, esTreeNodeToTSNodeMap } = util.getParserServices(context); |
| const checker = program.getTypeChecker(); |
| const compilerOptions = program.getCompilerOptions(); |
| const isNoImplicitThis = tsutils.isStrictCompilerOptionEnabled(compilerOptions, 'noImplicitThis'); |
| const sourceCode = context.getSourceCode(); |
| const stateCache = new Map(); |
| function checkMemberExpression(node) { |
| const cachedState = stateCache.get(node); |
| if (cachedState) { |
| return cachedState; |
| } |
| if (node.object.type === utils_1.AST_NODE_TYPES.MemberExpression) { |
| const objectState = checkMemberExpression(node.object); |
| if (objectState === 1 /* Unsafe */) { |
| // if the object is unsafe, we know this will be unsafe as well |
| // we don't need to report, as we have already reported on the inner member expr |
| stateCache.set(node, objectState); |
| return objectState; |
| } |
| } |
| const tsNode = esTreeNodeToTSNodeMap.get(node.object); |
| const type = checker.getTypeAtLocation(tsNode); |
| const state = util.isTypeAnyType(type) ? 1 /* Unsafe */ : 2 /* Safe */; |
| stateCache.set(node, state); |
| if (state === 1 /* Unsafe */) { |
| const propertyName = sourceCode.getText(node.property); |
| let messageId = 'unsafeMemberExpression'; |
| if (!isNoImplicitThis) { |
| // `this.foo` or `this.foo[bar]` |
| const thisExpression = (0, util_1.getThisExpression)(node); |
| if (thisExpression && |
| util.isTypeAnyType(util.getConstrainedTypeAtLocation(checker, esTreeNodeToTSNodeMap.get(thisExpression)))) { |
| messageId = 'unsafeThisMemberExpression'; |
| } |
| } |
| context.report({ |
| node, |
| messageId, |
| data: { |
| property: node.computed ? `[${propertyName}]` : `.${propertyName}`, |
| }, |
| }); |
| } |
| return state; |
| } |
| return { |
| // ignore MemberExpression if it's parent is TSClassImplements or TSInterfaceHeritage |
| ':not(TSClassImplements, TSInterfaceHeritage) > MemberExpression': checkMemberExpression, |
| 'MemberExpression[computed = true] > *.property'(node) { |
| if ( |
| // x[1] |
| node.type === utils_1.AST_NODE_TYPES.Literal || |
| // x[1++] x[++x] etc |
| // FUN FACT - **all** update expressions return type number, regardless of the argument's type, |
| // because JS engines return NaN if there the argument is not a number. |
| node.type === utils_1.AST_NODE_TYPES.UpdateExpression) { |
| // perf optimizations - literals can obviously never be `any` |
| return; |
| } |
| const tsNode = esTreeNodeToTSNodeMap.get(node); |
| const type = checker.getTypeAtLocation(tsNode); |
| if (util.isTypeAnyType(type)) { |
| const propertyName = sourceCode.getText(node); |
| context.report({ |
| node, |
| messageId: 'unsafeComputedMemberAccess', |
| data: { |
| property: `[${propertyName}]`, |
| }, |
| }); |
| } |
| }, |
| }; |
| }, |
| }); |
| //# sourceMappingURL=no-unsafe-member-access.js.map |