noPipeImpureRule.js 2.5 KB

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  1. "use strict";
  2. var __extends = (this && this.__extends) || (function () {
  3. var extendStatics = function (d, b) {
  4. extendStatics = Object.setPrototypeOf ||
  5. ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
  6. function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
  7. return extendStatics(d, b);
  8. };
  9. return function (d, b) {
  10. extendStatics(d, b);
  11. function __() { this.constructor = d; }
  12. d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
  13. };
  14. })();
  15. Object.defineProperty(exports, "__esModule", { value: true });
  16. var sprintf_js_1 = require("sprintf-js");
  17. var rules_1 = require("tslint/lib/rules");
  18. var typescript_1 = require("typescript");
  19. var ngWalker_1 = require("./angular/ngWalker");
  20. var utils_1 = require("./util/utils");
  21. exports.getFailureMessage = function (failureParameters) {
  22. return sprintf_js_1.sprintf(Rule.FAILURE_STRING, failureParameters.className);
  23. };
  24. var Rule = (function (_super) {
  25. __extends(Rule, _super);
  26. function Rule() {
  27. return _super !== null && _super.apply(this, arguments) || this;
  28. }
  29. Rule.prototype.apply = function (sourceFile) {
  30. var walker = new Walker(sourceFile, this.getOptions());
  31. return this.applyWithWalker(walker);
  32. };
  33. Rule.metadata = {
  34. description: 'Disallows the declaration of impure pipes.',
  35. options: null,
  36. optionsDescription: 'Not configurable.',
  37. rationale: 'Impure pipes should be avoided because they are invoked on each change-detection cycle.',
  38. ruleName: 'no-pipe-impure',
  39. type: 'functionality',
  40. typescriptOnly: true
  41. };
  42. Rule.FAILURE_STRING = 'Impure pipe declared in class %s';
  43. return Rule;
  44. }(rules_1.AbstractRule));
  45. exports.Rule = Rule;
  46. var Walker = (function (_super) {
  47. __extends(Walker, _super);
  48. function Walker() {
  49. return _super !== null && _super.apply(this, arguments) || this;
  50. }
  51. Walker.prototype.visitNgPipe = function (metadata) {
  52. this.validatePipe(metadata);
  53. _super.prototype.visitNgPipe.call(this, metadata);
  54. };
  55. Walker.prototype.validatePipe = function (metadata) {
  56. if (!metadata.pure || metadata.pure.kind !== typescript_1.SyntaxKind.FalseKeyword)
  57. return;
  58. var className = utils_1.getClassName(metadata.controller);
  59. var failure = exports.getFailureMessage({ className: className });
  60. this.addFailureAtNode(metadata.pure, failure);
  61. };
  62. return Walker;
  63. }(ngWalker_1.NgWalker));