123 lines
5.7 KiB
Plaintext
123 lines
5.7 KiB
Plaintext
|
"use strict";
|
||
|
|
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
|
||
|
|
if (k2 === undefined) k2 = k;
|
||
|
|
var desc = Object.getOwnPropertyDescriptor(m, k);
|
||
|
|
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
|
||
|
|
desc = { enumerable: true, get: function() { return m[k]; } };
|
||
|
|
}
|
||
|
|
Object.defineProperty(o, k2, desc);
|
||
|
|
}) : (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 eslint_utils_1 = require("@typescript-eslint/utils/eslint-utils");
|
||
|
|
const tsutils = __importStar(require("ts-api-utils"));
|
||
|
|
const util_1 = require("../util");
|
||
|
|
exports.default = (0, util_1.createRule)({
|
||
|
|
name: 'no-unsafe-member-access',
|
||
|
|
meta: {
|
||
|
|
type: 'problem',
|
||
|
|
docs: {
|
||
|
|
description: 'Disallow member access on a value with type `any`',
|
||
|
|
recommended: 'recommended',
|
||
|
|
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 services = (0, util_1.getParserServices)(context);
|
||
|
|
const compilerOptions = services.program.getCompilerOptions();
|
||
|
|
const isNoImplicitThis = tsutils.isStrictCompilerOptionEnabled(compilerOptions, 'noImplicitThis');
|
||
|
|
const sourceCode = (0, eslint_utils_1.getSourceCode)(context);
|
||
|
|
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 /* State.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 type = services.getTypeAtLocation(node.object);
|
||
|
|
const state = (0, util_1.isTypeAnyType)(type) ? 1 /* State.Unsafe */ : 2 /* State.Safe */;
|
||
|
|
stateCache.set(node, state);
|
||
|
|
if (state === 1 /* State.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 &&
|
||
|
|
(0, util_1.isTypeAnyType)((0, util_1.getConstrainedTypeAtLocation)(services, thisExpression))) {
|
||
|
|
messageId = 'unsafeThisMemberExpression';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
context.report({
|
||
|
|
node: node.property,
|
||
|
|
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 type = services.getTypeAtLocation(node);
|
||
|
|
if ((0, util_1.isTypeAnyType)(type)) {
|
||
|
|
const propertyName = sourceCode.getText(node);
|
||
|
|
context.report({
|
||
|
|
node,
|
||
|
|
messageId: 'unsafeComputedMemberAccess',
|
||
|
|
data: {
|
||
|
|
property: `[${propertyName}]`,
|
||
|
|
},
|
||
|
|
});
|
||
|
|
}
|
||
|
|
},
|
||
|
|
};
|
||
|
|
},
|
||
|
|
});
|
||
|
|
//# sourceMappingURL=no-unsafe-member-access.js.map
|