1// Copyright 2008-2009 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#ifndef V8_REGEXP_REGEXP_BYTECODE_GENERATOR_INL_H_
6#define V8_REGEXP_REGEXP_BYTECODE_GENERATOR_INL_H_
7
8#include "src/regexp/regexp-bytecode-generator.h"
9
10#include "src/regexp/regexp-bytecodes.h"
11
12namespace v8 {
13namespace internal {
14
15void RegExpBytecodeGenerator::Emit(uint32_t byte, uint32_t twenty_four_bits) {
16  DCHECK(is_uint24(twenty_four_bits));
17  Emit32((twenty_four_bits << BYTECODE_SHIFT) | byte);
18}
19
20void RegExpBytecodeGenerator::Emit(uint32_t byte, int32_t twenty_four_bits) {
21  DCHECK(is_int24(twenty_four_bits));
22  Emit32((static_cast<uint32_t>(twenty_four_bits) << BYTECODE_SHIFT) | byte);
23}
24
25void RegExpBytecodeGenerator::Emit16(uint32_t word) {
26  DCHECK(pc_ <= static_cast<int>(buffer_.size()));
27  if (pc_ + 1 >= static_cast<int>(buffer_.size())) {
28    ExpandBuffer();
29  }
30  *reinterpret_cast<uint16_t*>(buffer_.data() + pc_) = word;
31  pc_ += 2;
32}
33
34void RegExpBytecodeGenerator::Emit8(uint32_t word) {
35  DCHECK(pc_ <= static_cast<int>(buffer_.size()));
36  if (pc_ == static_cast<int>(buffer_.size())) {
37    ExpandBuffer();
38  }
39  *reinterpret_cast<unsigned char*>(buffer_.data() + pc_) = word;
40  pc_ += 1;
41}
42
43void RegExpBytecodeGenerator::Emit32(uint32_t word) {
44  DCHECK(pc_ <= static_cast<int>(buffer_.size()));
45  if (pc_ + 3 >= static_cast<int>(buffer_.size())) {
46    ExpandBuffer();
47  }
48  *reinterpret_cast<uint32_t*>(buffer_.data() + pc_) = word;
49  pc_ += 4;
50}
51
52}  // namespace internal
53}  // namespace v8
54
55#endif  // V8_REGEXP_REGEXP_BYTECODE_GENERATOR_INL_H_
56