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-rw-r--r--node_modules/tslint/lib/rules/noBooleanLiteralCompareRule.js123
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;