diff options
Diffstat (limited to 'node_modules/tslint/lib/rules/oneVariablePerDeclarationRule.js')
-rw-r--r-- | node_modules/tslint/lib/rules/oneVariablePerDeclarationRule.js | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/node_modules/tslint/lib/rules/oneVariablePerDeclarationRule.js b/node_modules/tslint/lib/rules/oneVariablePerDeclarationRule.js new file mode 100644 index 000000000..5d1f42191 --- /dev/null +++ b/node_modules/tslint/lib/rules/oneVariablePerDeclarationRule.js @@ -0,0 +1,71 @@ +"use strict"; +/** + * @license + * Copyright 2016 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 OPTION_IGNORE_FOR_LOOP = "ignore-for-loop"; +var Rule = (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, { ignoreForLoop: this.ruleArguments.indexOf(OPTION_IGNORE_FOR_LOOP) !== -1 }); + }; + return Rule; +}(Lint.Rules.AbstractRule)); +/* tslint:disable:object-literal-sort-keys */ +Rule.metadata = { + ruleName: "one-variable-per-declaration", + description: "Disallows multiple variable definitions in the same declaration statement.", + 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)), + options: { + type: "array", + items: { + type: "string", + enum: [OPTION_IGNORE_FOR_LOOP], + }, + minLength: 0, + maxLength: 1, + }, + optionExamples: [true, [true, OPTION_IGNORE_FOR_LOOP]], + type: "style", + typescriptOnly: false, +}; +/* tslint:enable:object-literal-sort-keys */ +Rule.FAILURE_STRING = "Multiple variable declarations in the same statement are forbidden"; +exports.Rule = Rule; +function walk(ctx) { + ts.forEachChild(ctx.sourceFile, function cb(node) { + if (tsutils_1.isVariableStatement(node) && node.declarationList.declarations.length > 1) { + ctx.addFailureAtNode(node, Rule.FAILURE_STRING); + } + else if (tsutils_1.isForStatement(node) && !ctx.options.ignoreForLoop) { + var initializer = node.initializer; + if (initializer !== undefined + && initializer.kind === ts.SyntaxKind.VariableDeclarationList + && initializer.declarations.length > 1) { + ctx.addFailureAtNode(initializer, Rule.FAILURE_STRING); + } + } + ts.forEachChild(node, cb); + }); +} +var _a; |