28     TEST_AND_RETURN_FALSE(index_ < puff_size_);  in GetNext()
29     if (puff_buf_in_[index_] & 0x80) {  // Reading length/distance.  in GetNext()
30       if ((puff_buf_in_[index_] & 0x7F) < 127) {  in GetNext()
31         length = puff_buf_in_[index_] & 0x7F;  in GetNext()
33         index_++;  in GetNext()
35         TEST_AND_RETURN_FALSE(index_ < puff_size_);  in GetNext()
36         length = puff_buf_in_[index_] + 127;  in GetNext()
41       index_++;  in GetNext()
53       TEST_AND_RETURN_FALSE(index_ + 1 < puff_size_);  in GetNext()
54       auto distance = ReadByteArrayToUint16(&puff_buf_in_[index_]);  in GetNext()
59       index_ += 2;  in GetNext()
68       TEST_AND_RETURN_FALSE(index_ < puff_size_);  in GetNext()
69       if ((puff_buf_in_[index_] & 0x7F) < 127) {  in GetNext()
70         length = puff_buf_in_[index_] & 0x7F;  in GetNext()
71         index_++;  in GetNext()
73         index_++;  in GetNext()
75         TEST_AND_RETURN_FALSE(index_ + 1 < puff_size_);  in GetNext()
76         length = ReadByteArrayToUint16(&puff_buf_in_[index_]) + 127;  in GetNext()
77         index_ += 2;  in GetNext()
82       TEST_AND_RETURN_FALSE(index_ + length <= puff_size_);  in GetNext()
87         memcpy(buffer, &puff_buf_in_[index_], count);  in GetNext()
88         index_ += count;  in GetNext()
97     TEST_AND_RETURN_FALSE(index_ + 2 < puff_size_);  in GetNext()
98     length = ReadByteArrayToUint16(&puff_buf_in_[index_]) + 1;  in GetNext()
99     index_ += 2;  in GetNext()
102     TEST_AND_RETURN_FALSE(index_ + length <= puff_size_);  in GetNext()
104     memcpy(pd.block_metadata, &puff_buf_in_[index_], length);  in GetNext()
105     index_ += length;  in GetNext()
113   return puff_size_ - index_;  in BytesLeft()