1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 6 #include "src/snapshot/snapshot-source-sink.h" 7 8 #include "src/base/logging.h" 9 #include "src/handles-inl.h" 10 #include "src/objects-inl.h" 11 12 namespace v8 { 13 namespace internal { 14 15 void SnapshotByteSink::PutInt(uintptr_t integer, const char* description) { 16 DCHECK_LT(integer, 1 << 30); 17 integer <<= 2; 18 int bytes = 1; 19 if (integer > 0xFF) bytes = 2; 20 if (integer > 0xFFFF) bytes = 3; 21 if (integer > 0xFFFFFF) bytes = 4; 22 integer |= (bytes - 1); 23 Put(static_cast<int>(integer & 0xFF), "IntPart1"); 24 if (bytes > 1) Put(static_cast<int>((integer >> 8) & 0xFF), "IntPart2"); 25 if (bytes > 2) Put(static_cast<int>((integer >> 16) & 0xFF), "IntPart3"); 26 if (bytes > 3) Put(static_cast<int>((integer >> 24) & 0xFF), "IntPart4"); 27 } 28 29 30 void SnapshotByteSink::PutRaw(const byte* data, int number_of_bytes, 31 const char* description) { 32 data_.insert(data_.end(), data, data + number_of_bytes); 33 } 34 35 36 int SnapshotByteSource::GetBlob(const byte** data) { 37 int size = GetInt(); 38 CHECK(position_ + size <= length_); 39 *data = &data_[position_]; 40 Advance(size); 41 return size; 42 } 43 } // namespace internal 44 } // namespace v8 45
