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https://github.com/JamesIves/github-pages-deploy-action.git
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73 lines
3.3 KiB
JavaScript
73 lines
3.3 KiB
JavaScript
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"use strict";
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/**
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* @license
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* Copyright 2013 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 useIsnan_examples_1 = require("./code-examples/useIsnan.examples");
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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);
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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: "use-isnan",
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description: "Enforces use of the `isNaN()` function to check for NaN references instead of a comparison to the `NaN` constant.",
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rationale: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n Since `NaN !== NaN`, comparisons with regular operators will produce unexpected results.\n So, instead of `if (myVar === NaN)`, do `if (isNaN(myVar))`."], ["\n Since \\`NaN !== NaN\\`, comparisons with regular operators will produce unexpected results.\n So, instead of \\`if (myVar === NaN)\\`, do \\`if (isNaN(myVar))\\`."]))),
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optionsDescription: "Not configurable.",
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options: null,
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optionExamples: [true],
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type: "functionality",
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typescriptOnly: false,
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codeExamples: useIsnan_examples_1.codeExamples,
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};
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/* tslint:enable:object-literal-sort-keys */
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Rule.FAILURE_STRING = "Found an invalid comparison for NaN: ";
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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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return ts.forEachChild(ctx.sourceFile, function cb(node) {
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if (tsutils_1.isBinaryExpression(node)) {
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switch (node.operatorToken.kind) {
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case ts.SyntaxKind.LessThanToken:
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case ts.SyntaxKind.GreaterThanToken:
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case ts.SyntaxKind.LessThanEqualsToken:
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case ts.SyntaxKind.GreaterThanEqualsToken:
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case ts.SyntaxKind.EqualsEqualsToken:
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case ts.SyntaxKind.ExclamationEqualsToken:
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case ts.SyntaxKind.EqualsEqualsEqualsToken:
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case ts.SyntaxKind.ExclamationEqualsEqualsToken:
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if (isExpressionNaN(node.right) || isExpressionNaN(node.left)) {
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ctx.addFailureAtNode(node, Rule.FAILURE_STRING + node.getText(ctx.sourceFile));
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}
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}
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}
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return ts.forEachChild(node, cb);
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});
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}
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function isExpressionNaN(node) {
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return node.kind === ts.SyntaxKind.Identifier && node.text === "NaN";
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}
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var templateObject_1;
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