79 lines
3.5 KiB
JavaScript
79 lines
3.5 KiB
JavaScript
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"use strict";
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/**
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* @license
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* Copyright 2019 Palantir Technologies, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.Rule = void 0;
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var tslib_1 = require("tslib");
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var utils = require("tsutils");
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var ts = require("typescript");
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var Lint = require("../index");
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var staticThis_examples_1 = require("./code-examples/staticThis.examples");
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var Rule = /** @class */ (function (_super) {
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tslib_1.__extends(Rule, _super);
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function Rule() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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Rule.prototype.apply = function (sourceFile) {
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return this.applyWithFunction(sourceFile, walk);
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};
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/* tslint:disable:object-literal-sort-keys */
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Rule.metadata = {
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ruleName: "static-this",
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description: "Ban the use of `this` in static methods.",
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hasFix: true,
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options: null,
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optionsDescription: "",
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optionExamples: [true],
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/* tslint:disable:max-line-length */
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rationale: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n Static `this` usage can be confusing for newcomers.\n It can also become imprecise when used with extended classes when a static `this` of a parent class no longer specifically refers to the parent class.\n "], ["\n Static \\`this\\` usage can be confusing for newcomers.\n It can also become imprecise when used with extended classes when a static \\`this\\` of a parent class no longer specifically refers to the parent class.\n "]))),
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/* tslint:enable:max-line-length */
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type: "functionality",
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typescriptOnly: false,
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codeExamples: staticThis_examples_1.codeExamples,
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};
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/* tslint:enable:object-literal-sort-keys */
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Rule.FAILURE_STRING = "Use the parent class name instead of `this` when in a `static` context.";
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return Rule;
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}(Lint.Rules.AbstractRule));
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exports.Rule = Rule;
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function walk(ctx) {
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var currentParentClass;
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var cb = function (node) {
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var originalParentClass = currentParentClass;
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if (utils.isClassLikeDeclaration(node.parent)) {
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currentParentClass = undefined;
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if (utils.hasModifier(node.modifiers, ts.SyntaxKind.StaticKeyword)) {
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currentParentClass = node.parent;
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}
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ts.forEachChild(node, cb);
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currentParentClass = originalParentClass;
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return;
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}
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if (node.kind === ts.SyntaxKind.ThisKeyword && currentParentClass !== undefined) {
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var fix = void 0;
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if (currentParentClass.name !== undefined) {
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fix = Lint.Replacement.replaceNode(node, currentParentClass.name.text);
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}
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ctx.addFailureAtNode(node, Rule.FAILURE_STRING, fix);
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return;
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}
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ts.forEachChild(node, cb);
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};
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ts.forEachChild(ctx.sourceFile, cb);
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}
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var templateObject_1;
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