diff options
author | Zeno Albisser <zeno.albisser@digia.com> | 2013-08-15 21:46:11 +0200 |
---|---|---|
committer | Zeno Albisser <zeno.albisser@digia.com> | 2013-08-15 21:46:11 +0200 |
commit | 679147eead574d186ebf3069647b4c23e8ccace6 (patch) | |
tree | fc247a0ac8ff119f7c8550879ebb6d3dd8d1ff69 /chromium/v8/src/regexp-macro-assembler-irregexp-inl.h | |
download | qtwebengine-chromium-679147eead574d186ebf3069647b4c23e8ccace6.tar.gz |
Initial import.
Diffstat (limited to 'chromium/v8/src/regexp-macro-assembler-irregexp-inl.h')
-rw-r--r-- | chromium/v8/src/regexp-macro-assembler-irregexp-inl.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/chromium/v8/src/regexp-macro-assembler-irregexp-inl.h b/chromium/v8/src/regexp-macro-assembler-irregexp-inl.h new file mode 100644 index 00000000000..a767ec0089f --- /dev/null +++ b/chromium/v8/src/regexp-macro-assembler-irregexp-inl.h @@ -0,0 +1,88 @@ +// Copyright 2008-2009 the V8 project authors. All rights reserved. +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following +// disclaimer in the documentation and/or other materials provided +// with the distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// A light-weight assembler for the Irregexp byte code. + + +#include "v8.h" +#include "ast.h" +#include "bytecodes-irregexp.h" + +#ifndef V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ +#define V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ + +namespace v8 { +namespace internal { + +#ifdef V8_INTERPRETED_REGEXP + +void RegExpMacroAssemblerIrregexp::Emit(uint32_t byte, + uint32_t twenty_four_bits) { + uint32_t word = ((twenty_four_bits << BYTECODE_SHIFT) | byte); + ASSERT(pc_ <= buffer_.length()); + if (pc_ + 3 >= buffer_.length()) { + Expand(); + } + *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word; + pc_ += 4; +} + + +void RegExpMacroAssemblerIrregexp::Emit16(uint32_t word) { + ASSERT(pc_ <= buffer_.length()); + if (pc_ + 1 >= buffer_.length()) { + Expand(); + } + *reinterpret_cast<uint16_t*>(buffer_.start() + pc_) = word; + pc_ += 2; +} + + +void RegExpMacroAssemblerIrregexp::Emit8(uint32_t word) { + ASSERT(pc_ <= buffer_.length()); + if (pc_ == buffer_.length()) { + Expand(); + } + *reinterpret_cast<unsigned char*>(buffer_.start() + pc_) = word; + pc_ += 1; +} + + +void RegExpMacroAssemblerIrregexp::Emit32(uint32_t word) { + ASSERT(pc_ <= buffer_.length()); + if (pc_ + 3 >= buffer_.length()) { + Expand(); + } + *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word; + pc_ += 4; +} + +#endif // V8_INTERPRETED_REGEXP + +} } // namespace v8::internal + +#endif // V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ |