@vbyte/btc-dev/dist/lib/witness/util.js

Batteries-included toolset for plebian bitcoin development

import { Buff } from '@vbyte/buff';
import { Assert } from '@vbyte/micro-lib';
const WIT_LENGTH_BYTE = 1;
export function get_witness_size(witness) {
    const stack = witness.map(e => Buff.bytes(e));
    const size = stack.reduce((prev, next) => prev + next.length, 0);
    const vsize = Math.ceil(WIT_LENGTH_BYTE + size / 4);
    return { total: size, vsize };
}
export function assert_witness(witness) {
    Assert.ok(Array.isArray(witness), 'witness must be an array');
    Assert.ok(witness.every(e => Buff.is_bytes(e)), 'witness must be an array of strings or bytes');
}