Function serializeStream

test-app/public/sinon.js:6567–6591

* @param {!Array. } stream * @return {string} * @this {TextDecoder}

(stream)

         * @this {TextDecoder}
         */
        function serializeStream(stream) {
          // 1. Let token be the result of reading from stream.
          // (Done in-place on array, rather than as a stream)
    
          // 2. If encoding is UTF-8, UTF-16BE, or UTF-16LE, and ignore
          // BOM flag and BOM seen flag are unset, run these subsubsteps:
          if (includes(['UTF-8', 'UTF-16LE', 'UTF-16BE'], this._encoding.name) &&
              !this._ignoreBOM && !this._BOMseen) {
            if (stream.length > 0 && stream[0] === 0xFEFF) {
              // 1. If token is U+FEFF, set BOM seen flag.
              this._BOMseen = true;
              stream.shift();
            } else if (stream.length > 0) {
              // 2. Otherwise, if token is not end-of-stream, set BOM seen
              // flag and append token to stream.
              this._BOMseen = true;
            } else {
              // 3. Otherwise, if token is not end-of-stream, append token
              // to output.
              // (no-op)
            }
          }
          // 4. Otherwise, return output.
          return codePointsToString(stream);
        }
    
        return serializeStream.call(this, output);
      };