Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 740x 740x 740x 740x 740x 41x 41x 41x 41x 6x 6x 6x 6x 6x 32x 32x 740x 740x 20x 2631x 2631x 2631x 2631x 2631x 2631x 2631x 42x 42x 42x 42x 2631x 2631x 2631x 2631x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x | 'use strict';
const {
Error,
ObjectDefineProperties,
ObjectGetOwnPropertyDescriptors,
ObjectGetPrototypeOf,
ObjectSetPrototypeOf,
ObjectValues,
ReflectConstruct,
StringPrototypeSplit,
} = primordials;
const {
messaging_deserialize_symbol,
messaging_transfer_symbol,
messaging_clone_symbol,
messaging_transfer_list_symbol
} = internalBinding('symbols');
const {
JSTransferable,
setDeserializerCreateObjectFunction
} = internalBinding('messaging');
function setup() {
// Register the handler that will be used when deserializing JS-based objects
// from .postMessage() calls. The format of `deserializeInfo` is generally
// 'module:Constructor', e.g. 'internal/fs/promises:FileHandle'.
setDeserializerCreateObjectFunction((deserializeInfo) => {
const { 0: module, 1: ctor } = StringPrototypeSplit(deserializeInfo, ':');
const Ctor = require(module)[ctor];
if (typeof Ctor !== 'function' ||
typeof Ctor.prototype[messaging_deserialize_symbol] !== 'function') {
// Not one of the official errors because one should not be able to get
// here without messing with Node.js internals.
// eslint-disable-next-line no-restricted-syntax
throw new Error(`Unknown deserialize spec ${deserializeInfo}`);
}
return new Ctor();
});
}
function makeTransferable(obj) {
// If the object is already transferable, skip all this.
if (obj instanceof JSTransferable) return obj;
const inst = ReflectConstruct(JSTransferable, [], obj.constructor);
const properties = ObjectGetOwnPropertyDescriptors(obj);
const propertiesValues = ObjectValues(properties);
for (let i = 0; i < propertiesValues.length; i++) {
// We want to use null-prototype objects to not rely on globally mutable
// %Object.prototype%.
ObjectSetPrototypeOf(propertiesValues[i], null);
}
ObjectDefineProperties(inst, properties);
ObjectSetPrototypeOf(inst, ObjectGetPrototypeOf(obj));
return inst;
}
module.exports = {
makeTransferable,
setup,
JSTransferable,
kClone: messaging_clone_symbol,
kDeserialize: messaging_deserialize_symbol,
kTransfer: messaging_transfer_symbol,
kTransferList: messaging_transfer_list_symbol,
};
|