LarpixClient/electron/node_modules/@peculiar/utils/build/cjs/bytes/buffer-source.js
2026-07-09 22:38:33 +02:00

115 lines
3.6 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isArrayBuffer = isArrayBuffer;
exports.isSharedArrayBuffer = isSharedArrayBuffer;
exports.isArrayBufferLike = isArrayBufferLike;
exports.isArrayBufferView = isArrayBufferView;
exports.isBufferSource = isBufferSource;
exports.assertBufferSource = assertBufferSource;
exports.toUint8Array = toUint8Array;
exports.toUint8ArrayCopy = toUint8ArrayCopy;
exports.toArrayBuffer = toArrayBuffer;
exports.toArrayBufferLike = toArrayBufferLike;
exports.toView = toView;
exports.toViewCopy = toViewCopy;
const ARRAY_BUFFER_TAG = "[object ArrayBuffer]";
const SHARED_ARRAY_BUFFER_TAG = "[object SharedArrayBuffer]";
function tagOf(value) {
return Object.prototype.toString.call(value);
}
function isDataViewConstructor(type) {
return type === DataView || type.prototype instanceof DataView;
}
function bytesPerElement(type) {
if (isDataViewConstructor(type)) {
return 1;
}
const value = type.BYTES_PER_ELEMENT;
return value ?? 1;
}
function isArrayBufferViewLike(value) {
if (ArrayBuffer.isView(value)) {
return true;
}
if (!value || typeof value !== "object") {
return false;
}
const view = value;
return typeof view.byteOffset === "number"
&& typeof view.byteLength === "number"
&& isArrayBufferLike(view.buffer);
}
function copyBytes(data) {
const view = toUint8Array(data);
const copy = new Uint8Array(view.byteLength);
copy.set(view);
return copy;
}
function isArrayBuffer(value) {
return tagOf(value) === ARRAY_BUFFER_TAG;
}
function isSharedArrayBuffer(value) {
return typeof SharedArrayBuffer !== "undefined" && tagOf(value) === SHARED_ARRAY_BUFFER_TAG;
}
function isArrayBufferLike(value) {
return isArrayBuffer(value) || isSharedArrayBuffer(value);
}
function isArrayBufferView(value) {
return isArrayBufferViewLike(value);
}
function isBufferSource(value) {
return isArrayBufferLike(value) || isArrayBufferView(value);
}
function assertBufferSource(value) {
if (!isBufferSource(value)) {
throw new TypeError("Expected ArrayBuffer, SharedArrayBuffer, or ArrayBufferView");
}
}
function toUint8Array(data) {
assertBufferSource(data);
if (isArrayBufferLike(data)) {
return new Uint8Array(data);
}
return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);
}
function toUint8ArrayCopy(data) {
return copyBytes(data);
}
function toArrayBuffer(data) {
assertBufferSource(data);
if (isArrayBuffer(data)) {
return data;
}
const buffer = new ArrayBuffer(data.byteLength);
new Uint8Array(buffer).set(toUint8Array(data));
return buffer;
}
function toArrayBufferLike(data) {
assertBufferSource(data);
if (isArrayBufferLike(data)) {
return data;
}
if (data.byteOffset === 0 && data.byteLength === data.buffer.byteLength) {
return data.buffer;
}
return copyBytes(data).buffer;
}
function toView(data, type) {
assertBufferSource(data);
if (ArrayBuffer.isView(data) && data.constructor === type) {
return data;
}
const view = toUint8Array(data);
const elementSize = bytesPerElement(type);
if (view.byteOffset % elementSize !== 0 || view.byteLength % elementSize !== 0) {
throw new RangeError(`Cannot create ${type.name} over unaligned byte range`);
}
if (isDataViewConstructor(type)) {
return new type(view.buffer, view.byteOffset, view.byteLength);
}
return new type(view.buffer, view.byteOffset, view.byteLength / elementSize);
}
function toViewCopy(data, type) {
const copy = toUint8ArrayCopy(data);
return toView(copy, type);
}