Function readableAddChunk

packages/main/test/pages/diffable-html.js:6330–6364

(stream, chunk, encoding, addToFront, skipChunkCheck)

    };

    function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
      var state = stream._readableState;
      if (chunk === null) {
        state.reading = false;
        onEofChunk(stream, state);
      } else {
        var er;
        if (!skipChunkCheck) er = chunkInvalid(state, chunk);
        if (er) {
          stream.emit('error', er);
        } else if (state.objectMode || chunk && chunk.length > 0) {
          if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
            chunk = _uint8ArrayToBuffer(chunk);
          }

          if (addToFront) {
            if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
          } else if (state.ended) {
            stream.emit('error', new Error('stream.push() after EOF'));
          } else {
            state.reading = false;
            if (state.decoder && !encoding) {
              chunk = state.decoder.write(chunk);
              if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
            } else {
              addChunk(stream, state, chunk, false);
            }
          }
        } else if (!addToFront) {
          state.reading = false;
        }
      }

      return needMoreData(state);
    }

    function addChunk(stream, state, chunk, addToFront) {
      if (state.flowing && state.length === 0 && !state.sync) {