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47 lines
1.2 KiB
JavaScript

"use strict";
const conversions = require("webidl-conversions");
const utils = require("./utils.js");
exports.convert = (value, { context = "The provided value" } = {}) => {
if (typeof value !== "function") {
throw new TypeError(context + " is not a function");
}
function invokeTheCallbackFunction(...args) {
if (new.target !== undefined) {
throw new Error("Internal error: invokeTheCallbackFunction is not a constructor");
}
const thisArg = utils.tryWrapperForImpl(this);
let callResult;
for (let i = 0; i < args.length; i++) {
args[i] = utils.tryWrapperForImpl(args[i]);
}
callResult = Reflect.apply(value, thisArg, args);
callResult = conversions["any"](callResult, { context: context });
return callResult;
}
invokeTheCallbackFunction.construct = (...args) => {
for (let i = 0; i < args.length; i++) {
args[i] = utils.tryWrapperForImpl(args[i]);
}
let callResult = Reflect.construct(value, args);
callResult = conversions["any"](callResult, { context: context });
return callResult;
};
invokeTheCallbackFunction[utils.wrapperSymbol] = value;
invokeTheCallbackFunction.objectReference = value;
return invokeTheCallbackFunction;
};