+++ /dev/null
-"use strict";
-/**
- * @license
- * Copyright 2019 Palantir Technologies, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-Object.defineProperty(exports, "__esModule", { value: true });
-var tslib_1 = require("tslib");
-var tsutils_1 = require("tsutils");
-var ts = require("typescript");
-var Lint = require("../index");
-var Rule = /** @class */ (function (_super) {
- tslib_1.__extends(Rule, _super);
- function Rule() {
- return _super !== null && _super.apply(this, arguments) || this;
- }
- Rule.FAILURE_STRING_FACTORY = function () {
- return "Use a for...of statement instead of for...in. If iterating over an object, use Object.keys() to access its enumerable keys.";
- };
- Rule.prototype.apply = function (sourceFile) {
- return this.applyWithFunction(sourceFile, walk);
- };
- Rule.metadata = {
- description: "Ban the usage of for...in statements.",
- optionExamples: [true],
- options: null,
- optionsDescription: "Not configurable.",
- rationale: "for...in statements are legacy JavaScript syntax which usually require a verbose `hasOwnProperty` check inside their loop body. These statements can be fully replaced with for...of statements in modern JS & TS.",
- ruleName: "no-for-in",
- type: "typescript",
- typescriptOnly: false,
- };
- return Rule;
-}(Lint.Rules.AbstractRule));
-exports.Rule = Rule;
-function walk(ctx) {
- function cb(node) {
- if (tsutils_1.isForInStatement(node)) {
- var msg = Rule.FAILURE_STRING_FACTORY();
- ctx.addFailureAt(node.getStart(), node.getWidth(), msg);
- }
- return ts.forEachChild(node, cb);
- }
- return ts.forEachChild(ctx.sourceFile, cb);
-}