@bsv/wallet-toolbox/out/src/storage/methods/utils.Buffer.js

BRC100 conforming wallet, wallet storage and wallet signer components

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.swapByteOrder = swapByteOrder;
exports.convertUint32ToBuffer = convertUint32ToBuffer;
exports.convertBufferToUint32 = convertBufferToUint32;
/**
 * Returns a copy of a Buffer with byte order reversed.
 * @returns new buffer with byte order reversed.
 * @publicbody
 */
function swapByteOrder(buffer) {
    return Buffer.from(buffer).reverse();
}
/**
 * @param num a number value in the Uint32 value range
 * @param littleEndian true for little-endian byte order in Buffer
 * @returns four byte buffer with Uint32 number encoded
 * @publicbody
 */
function convertUint32ToBuffer(num, littleEndian = true) {
    const arr = new ArrayBuffer(4);
    const view = new DataView(arr);
    view.setUint32(0, num, littleEndian); // byteOffset = 0
    return Buffer.from(arr);
}
/**
 * @param buffer four byte buffer with Uint32 number encoded
 * @param littleEndian true for little-endian byte order in Buffer
 * @returns a number value in the Uint32 value range
 * @publicbody
 */
function convertBufferToUint32(buffer, littleEndian = true) {
    const arr = buffer.buffer.slice(buffer.byteOffset, buffer.byteOffset + buffer.byteLength);
    const view = new DataView(arr);
    return view.getUint32(0, littleEndian);
}
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