72 lines
3.1 KiB
JavaScript
72 lines
3.1 KiB
JavaScript
"use strict";
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/**
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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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Object.defineProperty(exports, "__esModule", { value: true });
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var tslib_1 = require("tslib");
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var tsutils_1 = require("tsutils");
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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 = /** @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, { ignoreForLoop: this.ruleArguments.indexOf(OPTION_IGNORE_FOR_LOOP) !== -1 });
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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: "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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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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ts.forEachChild(ctx.sourceFile, function cb(node) {
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if (tsutils_1.isVariableStatement(node) && node.declarationList.declarations.length > 1) {
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ctx.addFailureAtNode(node, Rule.FAILURE_STRING);
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}
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else if (tsutils_1.isForStatement(node) && !ctx.options.ignoreForLoop) {
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var initializer = node.initializer;
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if (initializer !== undefined
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&& initializer.kind === ts.SyntaxKind.VariableDeclarationList
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&& initializer.declarations.length > 1) {
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ctx.addFailureAtNode(initializer, Rule.FAILURE_STRING);
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}
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}
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ts.forEachChild(node, cb);
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});
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}
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var _a;
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