DOMParser.js 4.2 KB

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  1. "use strict";
  2. const conversions = require("webidl-conversions");
  3. const utils = require("./utils.js");
  4. const SupportedType = require("./SupportedType.js");
  5. const implSymbol = utils.implSymbol;
  6. const ctorRegistrySymbol = utils.ctorRegistrySymbol;
  7. const interfaceName = "DOMParser";
  8. exports.is = value => {
  9. return utils.isObject(value) && Object.hasOwn(value, implSymbol) && value[implSymbol] instanceof Impl.implementation;
  10. };
  11. exports.isImpl = value => {
  12. return utils.isObject(value) && value instanceof Impl.implementation;
  13. };
  14. exports.convert = (globalObject, value, { context = "The provided value" } = {}) => {
  15. if (exports.is(value)) {
  16. return utils.implForWrapper(value);
  17. }
  18. throw new globalObject.TypeError(`${context} is not of type 'DOMParser'.`);
  19. };
  20. function makeWrapper(globalObject, newTarget) {
  21. let proto;
  22. if (newTarget !== undefined) {
  23. proto = newTarget.prototype;
  24. }
  25. if (!utils.isObject(proto)) {
  26. proto = globalObject[ctorRegistrySymbol]["DOMParser"].prototype;
  27. }
  28. return Object.create(proto);
  29. }
  30. exports.create = (globalObject, constructorArgs, privateData) => {
  31. const wrapper = makeWrapper(globalObject);
  32. return exports.setup(wrapper, globalObject, constructorArgs, privateData);
  33. };
  34. exports.createImpl = (globalObject, constructorArgs, privateData) => {
  35. const wrapper = exports.create(globalObject, constructorArgs, privateData);
  36. return utils.implForWrapper(wrapper);
  37. };
  38. exports._internalSetup = (wrapper, globalObject) => {};
  39. exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {}) => {
  40. privateData.wrapper = wrapper;
  41. exports._internalSetup(wrapper, globalObject);
  42. Object.defineProperty(wrapper, implSymbol, {
  43. value: new Impl.implementation(globalObject, constructorArgs, privateData),
  44. configurable: true
  45. });
  46. wrapper[implSymbol][utils.wrapperSymbol] = wrapper;
  47. if (Impl.init) {
  48. Impl.init(wrapper[implSymbol]);
  49. }
  50. return wrapper;
  51. };
  52. exports.new = (globalObject, newTarget) => {
  53. const wrapper = makeWrapper(globalObject, newTarget);
  54. exports._internalSetup(wrapper, globalObject);
  55. Object.defineProperty(wrapper, implSymbol, {
  56. value: Object.create(Impl.implementation.prototype),
  57. configurable: true
  58. });
  59. wrapper[implSymbol][utils.wrapperSymbol] = wrapper;
  60. if (Impl.init) {
  61. Impl.init(wrapper[implSymbol]);
  62. }
  63. return wrapper[implSymbol];
  64. };
  65. const exposed = new Set(["Window"]);
  66. exports.install = (globalObject, globalNames) => {
  67. if (!globalNames.some(globalName => exposed.has(globalName))) {
  68. return;
  69. }
  70. const ctorRegistry = utils.initCtorRegistry(globalObject);
  71. class DOMParser {
  72. constructor() {
  73. return exports.setup(Object.create(new.target.prototype), globalObject, undefined);
  74. }
  75. parseFromString(str, type) {
  76. const esValue = this !== null && this !== undefined ? this : globalObject;
  77. if (!exports.is(esValue)) {
  78. throw new globalObject.TypeError(
  79. "'parseFromString' called on an object that is not a valid instance of DOMParser."
  80. );
  81. }
  82. if (arguments.length < 2) {
  83. throw new globalObject.TypeError(
  84. `Failed to execute 'parseFromString' on 'DOMParser': 2 arguments required, but only ${arguments.length} present.`
  85. );
  86. }
  87. const args = [];
  88. {
  89. let curArg = arguments[0];
  90. curArg = conversions["DOMString"](curArg, {
  91. context: "Failed to execute 'parseFromString' on 'DOMParser': parameter 1",
  92. globals: globalObject
  93. });
  94. args.push(curArg);
  95. }
  96. {
  97. let curArg = arguments[1];
  98. curArg = SupportedType.convert(globalObject, curArg, {
  99. context: "Failed to execute 'parseFromString' on 'DOMParser': parameter 2"
  100. });
  101. args.push(curArg);
  102. }
  103. return utils.tryWrapperForImpl(esValue[implSymbol].parseFromString(...args));
  104. }
  105. }
  106. Object.defineProperties(DOMParser.prototype, {
  107. parseFromString: { enumerable: true },
  108. [Symbol.toStringTag]: { value: "DOMParser", configurable: true }
  109. });
  110. ctorRegistry[interfaceName] = DOMParser;
  111. Object.defineProperty(globalObject, interfaceName, {
  112. configurable: true,
  113. writable: true,
  114. value: DOMParser
  115. });
  116. };
  117. const Impl = require("../../jsdom/living/domparsing/DOMParser-impl.js");