diff options
author | Florian Dold <florian.dold@gmail.com> | 2019-03-27 21:01:33 +0100 |
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committer | Florian Dold <florian.dold@gmail.com> | 2019-03-27 21:01:33 +0100 |
commit | cc97a4dd2a967e1c2273bd5f4c5f49a5bf2e2585 (patch) | |
tree | 92c5d88706a6ffc654d1b133618d357890e7096b /node_modules/tslint/lib/rules/preferObjectSpreadRule.js | |
parent | 3771b4d6b67b34c130f3a9a1a15f42deefdb2eda (diff) |
remove node_modules
Diffstat (limited to 'node_modules/tslint/lib/rules/preferObjectSpreadRule.js')
-rw-r--r-- | node_modules/tslint/lib/rules/preferObjectSpreadRule.js | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/node_modules/tslint/lib/rules/preferObjectSpreadRule.js b/node_modules/tslint/lib/rules/preferObjectSpreadRule.js deleted file mode 100644 index 8cd5005be..000000000 --- a/node_modules/tslint/lib/rules/preferObjectSpreadRule.js +++ /dev/null @@ -1,124 +0,0 @@ -"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 tsutils_1 = require("tsutils"); -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); - }; - /* tslint:disable:object-literal-sort-keys */ - Rule.metadata = { - ruleName: "prefer-object-spread", - description: "Enforces the use of the ES2015 object spread operator over `Object.assign()` where appropriate.", - rationale: "Object spread allows for better type checking and inference.", - optionsDescription: "Not configurable.", - options: null, - optionExamples: [true], - type: "functionality", - typescriptOnly: false, - hasFix: true, - }; - /* tslint:enable:object-literal-sort-keys */ - Rule.FAILURE_STRING = "Use the object spread operator instead."; - Rule.ASSIGNMENT_FAILURE_STRING = "'Object.assign' returns the first argument. Prefer object spread if you want a new object."; - return Rule; -}(Lint.Rules.AbstractRule)); -exports.Rule = Rule; -function walk(ctx) { - return ts.forEachChild(ctx.sourceFile, function cb(node) { - if (tsutils_1.isCallExpression(node) && node.arguments.length !== 0 && - tsutils_1.isPropertyAccessExpression(node.expression) && node.expression.name.text === "assign" && - tsutils_1.isIdentifier(node.expression.expression) && node.expression.expression.text === "Object" && - !ts.isFunctionLike(node.arguments[0]) && - // Object.assign(...someArray) cannot be written as object spread - !node.arguments.some(tsutils_1.isSpreadElement) && - /** - * @TODO - * Remove !node.arguments.some(isThisKeyword) when typescript get's - * support for spread types. - * PR: https://github.com/Microsoft/TypeScript/issues/10727 - */ - !node.arguments.some(isThisKeyword)) { - if (node.arguments[0].kind === ts.SyntaxKind.ObjectLiteralExpression) { - ctx.addFailureAtNode(node, Rule.FAILURE_STRING, createFix(node, ctx.sourceFile)); - } - else if (tsutils_1.isExpressionValueUsed(node) && !tsutils_1.hasSideEffects(node.arguments[0], 2 /* Constructor */)) { - ctx.addFailureAtNode(node, Rule.ASSIGNMENT_FAILURE_STRING, createFix(node, ctx.sourceFile)); - } - } - return ts.forEachChild(node, cb); - }); -} -function createFix(node, sourceFile) { - var args = node.arguments; - var objectNeedsParens = node.parent.kind === ts.SyntaxKind.ArrowFunction; - var fix = [ - Lint.Replacement.replaceFromTo(node.getStart(sourceFile), args[0].getStart(sourceFile), (objectNeedsParens ? "(" : "") + "{"), - new Lint.Replacement(node.end - 1, 1, "}" + (objectNeedsParens ? ")" : "")), - ]; - for (var i = 0; i < args.length; ++i) { - var arg = args[i]; - if (tsutils_1.isObjectLiteralExpression(arg)) { - if (arg.properties.length === 0) { - var end = arg.end; - if (i !== args.length - 1) { - end = args[i + 1].getStart(sourceFile); - } - else if (args.hasTrailingComma) { - end = args.end; - } - // remove empty object iteral and the following comma if exists - fix.push(Lint.Replacement.deleteFromTo(arg.getStart(sourceFile), end)); - } - else { - fix.push( - // remove open brace - Lint.Replacement.deleteText(arg.getStart(sourceFile), 1), - // remove trailing comma if exists and close brace - Lint.Replacement.deleteFromTo(arg.properties[arg.properties.length - 1].end, arg.end)); - } - } - else { - var parens = needsParens(arg); - fix.push(Lint.Replacement.appendText(arg.getStart(sourceFile), parens ? "...(" : "...")); - if (parens) { - fix.push(Lint.Replacement.appendText(arg.end, ")")); - } - } - } - return fix; -} -function isThisKeyword(node) { - return node.kind === ts.SyntaxKind.ThisKeyword; -} -function needsParens(node) { - switch (node.kind) { - case ts.SyntaxKind.ConditionalExpression: - case ts.SyntaxKind.BinaryExpression: - return true; - default: - return false; - } -} |