Function encodeHeader

cbor/_common_encode.ts:97–124

(
  majorType: number,
  input: number | bigint,
  output: Uint8Array,
  offset: number,
)

}

function encodeHeader(
  majorType: number,
  input: number | bigint,
  output: Uint8Array,
  offset: number,
): number {
  if (input < 24) output[offset++] = majorType + Number(input);
  else if (input < 2 ** 8) {
    output[offset++] = majorType + 0b000_11000;
    output[offset++] = Number(input);
  } else {
    const view = new DataView(output.buffer);
    if (input < 2 ** 16) {
      output[offset++] = majorType + 0b000_11001;
      view.setUint16(offset, Number(input));
      offset += 2;
    } else if (input < 2 ** 32) {
      output[offset++] = majorType + 0b000_11010;
      view.setUint32(offset, Number(input));
      offset += 4;
    } else {
      output[offset++] = majorType + 0b000_11011;
      view.setBigUint64(offset, BigInt(input));
      offset += 8;
    }
  }
  return offset;
}

function encodeNumber(
  input: number,