90 lines
3.9 KiB
JavaScript
90 lines
3.9 KiB
JavaScript
/**
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* @license
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* Copyright 2016 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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"use strict";
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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Object.defineProperty(exports, "__esModule", { value: true });
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var ts = require("typescript");
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var Lint = require("../index");
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var OPTION_IGNORE_FOR_LOOP = "ignore-for-loop";
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var Rule = (function (_super) {
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__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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var oneVarWalker = new OneVariablePerDeclarationWalker(sourceFile, this.getOptions());
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return this.applyWithWalker(oneVarWalker);
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};
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return Rule;
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}(Lint.Rules.AbstractRule));
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/* tslint:disable:object-literal-sort-keys */
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Rule.metadata = {
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ruleName: "one-variable-per-declaration",
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description: "Disallows multiple variable definitions in the same declaration statement.",
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optionsDescription: (_a = ["\n One argument may be optionally provided:\n\n * `", "` allows multiple variable definitions in a for loop declaration."], _a.raw = ["\n One argument may be optionally provided:\n\n * \\`", "\\` allows multiple variable definitions in a for loop declaration."], Lint.Utils.dedent(_a, OPTION_IGNORE_FOR_LOOP)),
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options: {
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type: "array",
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items: {
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type: "string",
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enum: [OPTION_IGNORE_FOR_LOOP],
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},
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minLength: 0,
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maxLength: 1,
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},
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optionExamples: ["true", "[true, \"" + OPTION_IGNORE_FOR_LOOP + "\"]"],
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type: "style",
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typescriptOnly: false,
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};
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/* tslint:enable:object-literal-sort-keys */
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Rule.FAILURE_STRING = "Multiple variable declarations in the same statement are forbidden";
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exports.Rule = Rule;
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var OneVariablePerDeclarationWalker = (function (_super) {
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__extends(OneVariablePerDeclarationWalker, _super);
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function OneVariablePerDeclarationWalker() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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OneVariablePerDeclarationWalker.prototype.visitVariableStatement = function (node) {
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var declarationList = node.declarationList;
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if (declarationList.declarations.length > 1) {
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this.addFailureAtNode(node, Rule.FAILURE_STRING);
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}
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_super.prototype.visitVariableStatement.call(this, node);
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};
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OneVariablePerDeclarationWalker.prototype.visitForStatement = function (node) {
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var initializer = node.initializer;
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var shouldIgnoreForLoop = this.hasOption(OPTION_IGNORE_FOR_LOOP);
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if (!shouldIgnoreForLoop
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&& initializer != null
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&& initializer.kind === ts.SyntaxKind.VariableDeclarationList
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&& initializer.declarations.length > 1) {
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this.addFailureAtNode(initializer, Rule.FAILURE_STRING);
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}
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_super.prototype.visitForStatement.call(this, node);
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};
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return OneVariablePerDeclarationWalker;
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}(Lint.RuleWalker));
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var _a;
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