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/noBooleanLiteralCompareRule.js | |
parent | 3771b4d6b67b34c130f3a9a1a15f42deefdb2eda (diff) |
remove node_modules
Diffstat (limited to 'node_modules/tslint/lib/rules/noBooleanLiteralCompareRule.js')
-rw-r--r-- | node_modules/tslint/lib/rules/noBooleanLiteralCompareRule.js | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/node_modules/tslint/lib/rules/noBooleanLiteralCompareRule.js b/node_modules/tslint/lib/rules/noBooleanLiteralCompareRule.js deleted file mode 100644 index efe5027c1..000000000 --- a/node_modules/tslint/lib/rules/noBooleanLiteralCompareRule.js +++ /dev/null @@ -1,123 +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 utils = 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; - } - /* tslint:enable:object-literal-sort-keys */ - Rule.FAILURE_STRING = function (negate) { - return "This expression is unnecessarily compared to a boolean. Just " + (negate ? "negate it" : "use it directly") + "."; - }; - Rule.prototype.applyWithProgram = function (sourceFile, program) { - return this.applyWithFunction(sourceFile, walk, undefined, program.getTypeChecker()); - }; - /* tslint:disable:object-literal-sort-keys */ - Rule.metadata = { - ruleName: "no-boolean-literal-compare", - description: "Warns on comparison to a boolean literal, as in `x === true`.", - hasFix: true, - optionsDescription: "Not configurable.", - options: null, - optionExamples: [true], - rationale: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n Comparing boolean values to boolean literals is unnecessary, as those expressions will result in booleans too.\n Just use the boolean values directly or negate them.\n "], ["\n Comparing boolean values to boolean literals is unnecessary, as those expressions will result in booleans too.\n Just use the boolean values directly or negate them.\n "]))), - type: "style", - typescriptOnly: true, - requiresTypeInfo: true, - }; - return Rule; -}(Lint.Rules.TypedRule)); -exports.Rule = Rule; -function walk(ctx, checker) { - return ts.forEachChild(ctx.sourceFile, function cb(node) { - if (utils.isBinaryExpression(node)) { - var cmp = getBooleanComparison(node, checker); - if (cmp !== undefined) { - ctx.addFailureAtNode(cmp.expression, Rule.FAILURE_STRING(cmp.negate), fix(node, cmp)); - } - } - return ts.forEachChild(node, cb); - }); -} -function getBooleanComparison(node, checker) { - var cmp = deconstructComparison(node); - return cmp === undefined || !utils.isTypeFlagSet(checker.getTypeAtLocation(cmp.expression), ts.TypeFlags.Boolean) ? undefined : cmp; -} -function fix(node, _a) { - var negate = _a.negate, expression = _a.expression; - var deleted = node.left === expression - ? Lint.Replacement.deleteFromTo(node.left.end, node.end) - : Lint.Replacement.deleteFromTo(node.getStart(), node.right.getStart()); - if (!negate) { - return deleted; - } - else if (needsParenthesesForNegate(expression)) { - return [ - deleted, - Lint.Replacement.appendText(node.getStart(), "!("), - Lint.Replacement.appendText(node.getEnd(), ")"), - ]; - } - else { - return [ - deleted, - Lint.Replacement.appendText(node.getStart(), "!"), - ]; - } -} -function needsParenthesesForNegate(node) { - switch (node.kind) { - case ts.SyntaxKind.AsExpression: - case ts.SyntaxKind.BinaryExpression: - return true; - default: - return false; - } -} -function deconstructComparison(node) { - var left = node.left, operatorToken = node.operatorToken, right = node.right; - var eq = Lint.getEqualsKind(operatorToken); - if (eq === undefined) { - return undefined; - } - var leftValue = booleanFromExpression(left); - if (leftValue !== undefined) { - return { negate: leftValue !== eq.isPositive, expression: right }; - } - var rightValue = booleanFromExpression(right); - if (rightValue !== undefined) { - return { negate: rightValue !== eq.isPositive, expression: left }; - } - return undefined; -} -function booleanFromExpression(node) { - switch (node.kind) { - case ts.SyntaxKind.TrueKeyword: - return true; - case ts.SyntaxKind.FalseKeyword: - return false; - default: - return undefined; - } -} -var templateObject_1; |