Function toBase64VLQ

packages/compiler/src/output/source_map.ts:168–182

(value: number)

}

function toBase64VLQ(value: number): string {
  value = value < 0 ? (-value << 1) + 1 : value << 1;

  let out = '';
  do {
    let digit = value & 31;
    value = value >> 5;
    if (value > 0) {
      digit = digit | 32;
    }
    out += toBase64Digit(digit);
  } while (value > 0);

  return out;
}

const B64_DIGITS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';