radixRule.js 3.3KB

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  1. "use strict";
  2. /**
  3. * @license
  4. * Copyright 2013 Palantir Technologies, Inc.
  5. *
  6. * Licensed under the Apache License, Version 2.0 (the "License");
  7. * you may not use this file except in compliance with the License.
  8. * You may obtain a copy of the License at
  9. *
  10. * http://www.apache.org/licenses/LICENSE-2.0
  11. *
  12. * Unless required by applicable law or agreed to in writing, software
  13. * distributed under the License is distributed on an "AS IS" BASIS,
  14. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15. * See the License for the specific language governing permissions and
  16. * limitations under the License.
  17. */
  18. Object.defineProperty(exports, "__esModule", { value: true });
  19. var tslib_1 = require("tslib");
  20. var tsutils_1 = require("tsutils");
  21. var ts = require("typescript");
  22. var Lint = require("../index");
  23. var Rule = /** @class */ (function (_super) {
  24. tslib_1.__extends(Rule, _super);
  25. function Rule() {
  26. return _super !== null && _super.apply(this, arguments) || this;
  27. }
  28. Rule.prototype.apply = function (sourceFile) {
  29. return this.applyWithFunction(sourceFile, walk);
  30. };
  31. /* tslint:disable:object-literal-sort-keys */
  32. Rule.metadata = {
  33. ruleName: "radix",
  34. description: "Requires the radix parameter to be specified when calling `parseInt`.",
  35. 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."]))),
  36. optionsDescription: "Not configurable.",
  37. options: null,
  38. optionExamples: [true],
  39. type: "functionality",
  40. typescriptOnly: false,
  41. };
  42. /* tslint:enable:object-literal-sort-keys */
  43. Rule.FAILURE_STRING = "Missing radix parameter";
  44. return Rule;
  45. }(Lint.Rules.AbstractRule));
  46. exports.Rule = Rule;
  47. function walk(ctx) {
  48. return ts.forEachChild(ctx.sourceFile, function cb(node) {
  49. if (tsutils_1.isCallExpression(node) && node.arguments.length === 1 &&
  50. (
  51. // parseInt("123")
  52. tsutils_1.isIdentifier(node.expression) && node.expression.text === "parseInt" ||
  53. // window.parseInt("123") || global.parseInt("123")
  54. tsutils_1.isPropertyAccessExpression(node.expression) &&
  55. node.expression.name.text === "parseInt" &&
  56. tsutils_1.isIdentifier(node.expression.expression) &&
  57. (node.expression.expression.text === "global" ||
  58. node.expression.expression.text === "window"))) {
  59. ctx.addFailureAtNode(node, Rule.FAILURE_STRING);
  60. }
  61. return ts.forEachChild(node, cb);
  62. });
  63. }
  64. var templateObject_1;