bitverse-atomicals-js/dist/commands/witness_stack_to_script_witness.js

Atomicals Javascript Library and CLI - atomicals.xyz

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.witnessStackToScriptWitness = void 0;
//import varuint from "varuint-bitcoin";
const varuint = require("varuint-bitcoin");
/**
 * Helper function that produces a serialized witness script
 * https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/csv.spec.ts#L477
 */
function witnessStackToScriptWitness(witness) {
    let buffer = Buffer.allocUnsafe(0);
    function writeSlice(slice) {
        buffer = Buffer.concat([buffer, Buffer.from(slice)]);
    }
    function writeVarInt(i) {
        const currentLen = buffer.length;
        const varintLen = varuint.encodingLength(i);
        buffer = Buffer.concat([buffer, Buffer.allocUnsafe(varintLen)]);
        varuint.encode(i, buffer, currentLen);
    }
    function writeVarSlice(slice) {
        writeVarInt(slice.length);
        writeSlice(slice);
    }
    function writeVector(vector) {
        writeVarInt(vector.length);
        vector.forEach(writeVarSlice);
    }
    writeVector(witness);
    return buffer;
}
exports.witnessStackToScriptWitness = witnessStackToScriptWitness;