AbortController.js
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"use strict";
const conversions = require("webidl-conversions");
const utils = require("./utils.js");
const impl = utils.implSymbol;
const ctorRegistry = utils.ctorRegistrySymbol;
const interfaceName = "AbortController";
/**
* When an interface-module that implements this interface as a mixin is loaded, it will append its own `.is()`
* method into this array. It allows objects that directly implements *those* interfaces to be recognized as
* implementing this mixin interface.
*/
exports._mixedIntoPredicates = [];
exports.is = function is(obj) {
if (obj) {
if (utils.hasOwn(obj, impl) && obj[impl] instanceof Impl.implementation) {
return true;
}
for (const isMixedInto of exports._mixedIntoPredicates) {
if (isMixedInto(obj)) {
return true;
}
}
}
return false;
};
exports.isImpl = function isImpl(obj) {
if (obj) {
if (obj instanceof Impl.implementation) {
return true;
}
const wrapper = utils.wrapperForImpl(obj);
for (const isMixedInto of exports._mixedIntoPredicates) {
if (isMixedInto(wrapper)) {
return true;
}
}
}
return false;
};
exports.convert = function convert(obj, { context = "The provided value" } = {}) {
if (exports.is(obj)) {
return utils.implForWrapper(obj);
}
throw new TypeError(`${context} is not of type 'AbortController'.`);
};
exports.create = function create(globalObject, constructorArgs, privateData) {
if (globalObject[ctorRegistry] === undefined) {
throw new Error("Internal error: invalid global object");
}
const ctor = globalObject[ctorRegistry]["AbortController"];
if (ctor === undefined) {
throw new Error("Internal error: constructor AbortController is not installed on the passed global object");
}
let obj = Object.create(ctor.prototype);
obj = exports.setup(obj, globalObject, constructorArgs, privateData);
return obj;
};
exports.createImpl = function createImpl(globalObject, constructorArgs, privateData) {
const obj = exports.create(globalObject, constructorArgs, privateData);
return utils.implForWrapper(obj);
};
exports._internalSetup = function _internalSetup(obj) {};
exports.setup = function setup(obj, globalObject, constructorArgs = [], privateData = {}) {
privateData.wrapper = obj;
exports._internalSetup(obj);
Object.defineProperty(obj, impl, {
value: new Impl.implementation(globalObject, constructorArgs, privateData),
configurable: true
});
obj[impl][utils.wrapperSymbol] = obj;
if (Impl.init) {
Impl.init(obj[impl], privateData);
}
return obj;
};
exports.install = function install(globalObject) {
class AbortController {
constructor() {
return exports.setup(Object.create(new.target.prototype), globalObject, undefined);
}
abort() {
if (!this || !exports.is(this)) {
throw new TypeError("Illegal invocation");
}
return this[impl].abort();
}
get signal() {
if (!this || !exports.is(this)) {
throw new TypeError("Illegal invocation");
}
return utils.getSameObject(this, "signal", () => {
return utils.tryWrapperForImpl(this[impl]["signal"]);
});
}
}
Object.defineProperties(AbortController.prototype, {
abort: { enumerable: true },
signal: { enumerable: true },
[Symbol.toStringTag]: { value: "AbortController", configurable: true }
});
if (globalObject[ctorRegistry] === undefined) {
globalObject[ctorRegistry] = Object.create(null);
}
globalObject[ctorRegistry][interfaceName] = AbortController;
Object.defineProperty(globalObject, interfaceName, {
configurable: true,
writable: true,
value: AbortController
});
};
const Impl = require("../aborting/AbortController-impl.js");