91 lines
4.5 KiB
JavaScript
91 lines
4.5 KiB
JavaScript
"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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exports.Rule = void 0;
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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 radix_examples_1 = require("./code-examples/radix.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: "radix",
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description: "Requires the radix parameter to be specified when calling `parseInt`.",
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rationale: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n From [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt):\n > Always specify this parameter to eliminate reader confusion and to guarantee predictable behavior.\n > Different implementations produce different results when a radix is not specified, usually defaulting the value to 10."], ["\n From [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt):\n > Always specify this parameter to eliminate reader confusion and to guarantee predictable behavior.\n > Different implementations produce different results when a radix is not specified, usually defaulting the value to 10."]))),
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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: radix_examples_1.codeExamples,
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};
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/* tslint:enable:object-literal-sort-keys */
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Rule.FAILURE_STRING = "Missing radix parameter";
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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 isParseInt(expression) {
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return tsutils_1.isIdentifier(expression) && expression.text === "parseInt";
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}
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function isPropertyAccessParseInt(expression) {
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return tsutils_1.isPropertyAccessExpression(expression) && expression.name.text === "parseInt";
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}
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function isPropertyAccessOfIdentifier(expression, identifiers) {
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return (tsutils_1.isPropertyAccessExpression(expression) &&
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tsutils_1.isIdentifier(expression.expression) &&
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identifiers.some(function (identifier) { return expression.expression.text === identifier; }));
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}
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function isPropertyAccessOfProperty(expression, identifiers) {
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return (tsutils_1.isPropertyAccessExpression(expression) &&
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tsutils_1.isPropertyAccessExpression(expression.expression) &&
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identifiers.some(function (identifier) {
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return expression.expression.name.text === identifier;
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}));
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}
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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.isCallExpression(node) &&
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node.arguments.length === 1 &&
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// parseInt("123")
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(isParseInt(node.expression) ||
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// window.parseInt("123") || global.parseInt("123") || Number.parseInt("123")
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(isPropertyAccessParseInt(node.expression) &&
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isPropertyAccessOfIdentifier(node.expression, [
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"global",
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"window",
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"Number",
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])) ||
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// window.Number.parseInt("123") || global.Number.parseInt("123")
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(isPropertyAccessParseInt(node.expression) &&
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isPropertyAccessOfProperty(node.expression, ["Number"]) &&
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isPropertyAccessOfIdentifier(node.expression.expression, ["global", "window"])))) {
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ctx.addFailureAtNode(node, Rule.FAILURE_STRING);
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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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var templateObject_1;
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