+++ /dev/null
-"use strict";
-/**
- * @license
- * Copyright 2017 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 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.prototype.apply = function (sourceFile) {
- return this.applyWithFunction(sourceFile, walk);
- };
- Rule.metadata = {
- description: "Prevents duplicate cases in switch statements.",
- optionExamples: [true],
- options: null,
- optionsDescription: "",
- ruleName: "no-duplicate-switch-case",
- type: "functionality",
- typescriptOnly: false,
- };
- Rule.FAILURE_STRING_FACTORY = function (text) {
- return "Duplicate switch case: '" + text + "'.";
- };
- return Rule;
-}(Lint.Rules.AbstractRule));
-exports.Rule = Rule;
-function walk(ctx) {
- ts.forEachChild(ctx.sourceFile, function cb(node) {
- if (node.kind === ts.SyntaxKind.CaseBlock) {
- visitCaseBlock(node);
- }
- ts.forEachChild(node, cb);
- });
- function visitCaseBlock(node) {
- var previousCases = new Set();
- for (var _i = 0, _a = node.clauses; _i < _a.length; _i++) {
- var clause = _a[_i];
- if (clause.kind === ts.SyntaxKind.DefaultClause) {
- continue;
- }
- var text = clause.expression.getText(ctx.sourceFile);
- if (!previousCases.has(text)) {
- previousCases.add(text);
- continue;
- }
- ctx.addFailureAtNode(clause.expression, Rule.FAILURE_STRING_FACTORY(text));
- }
- }
-}