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authorZeno Albisser <zeno.albisser@digia.com>2013-08-15 21:46:11 +0200
committerZeno Albisser <zeno.albisser@digia.com>2013-08-15 21:46:11 +0200
commit679147eead574d186ebf3069647b4c23e8ccace6 (patch)
treefc247a0ac8ff119f7c8550879ebb6d3dd8d1ff69 /chromium/v8/src/regexp-macro-assembler-irregexp-inl.h
downloadqtwebengine-chromium-679147eead574d186ebf3069647b4c23e8ccace6.tar.gz
Initial import.
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+// 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_