Push version 2.5.9 to trunk.
Fixed crashes during GC caused by partially initialize heap objects.
Fixed bug in process sample that caused memory leaks.
Improved performance on ARM by implementing missing stubs and inlining.
Improved heap profiler support.
Added separate seeding on Windows of the random number generator used internally by the compiler (issue 936).
Exposed API for getting the name of the function used to construct an object.
Fixed date parser to handle one and two digit millisecond values (issue 944).
Fixed number parsing to disallow space between sign and digits (issue 946).
git-svn-id: http://v8.googlecode.com/svn/trunk@5896 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/preparse-data.cc b/src/preparse-data.cc
new file mode 100644
index 0000000..9a36771
--- /dev/null
+++ b/src/preparse-data.cc
@@ -0,0 +1,180 @@
+// Copyright 2010 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.
+
+#include "../include/v8stdint.h"
+#include "globals.h"
+#include "checks.h"
+#include "allocation.h"
+#include "utils.h"
+#include "list-inl.h"
+#include "hashmap.h"
+#include "preparse-data.h"
+
+namespace v8 {
+namespace internal {
+
+// ----------------------------------------------------------------------------
+// FunctionLoggingParserRecorder
+
+FunctionLoggingParserRecorder::FunctionLoggingParserRecorder()
+ : function_store_(0),
+ is_recording_(true),
+ pause_count_(0) {
+ preamble_[PreparseDataConstants::kMagicOffset] =
+ PreparseDataConstants::kMagicNumber;
+ preamble_[PreparseDataConstants::kVersionOffset] =
+ PreparseDataConstants::kCurrentVersion;
+ preamble_[PreparseDataConstants::kHasErrorOffset] = false;
+ preamble_[PreparseDataConstants::kFunctionsSizeOffset] = 0;
+ preamble_[PreparseDataConstants::kSymbolCountOffset] = 0;
+ preamble_[PreparseDataConstants::kSizeOffset] = 0;
+ ASSERT_EQ(6, PreparseDataConstants::kHeaderSize);
+#ifdef DEBUG
+ prev_start_ = -1;
+#endif
+}
+
+
+void FunctionLoggingParserRecorder::LogMessage(int start_pos,
+ int end_pos,
+ const char* message,
+ const char* arg_opt) {
+ if (has_error()) return;
+ preamble_[PreparseDataConstants::kHasErrorOffset] = true;
+ function_store_.Reset();
+ STATIC_ASSERT(PreparseDataConstants::kMessageStartPos == 0);
+ function_store_.Add(start_pos);
+ STATIC_ASSERT(PreparseDataConstants::kMessageEndPos == 1);
+ function_store_.Add(end_pos);
+ STATIC_ASSERT(PreparseDataConstants::kMessageArgCountPos == 2);
+ function_store_.Add((arg_opt == NULL) ? 0 : 1);
+ STATIC_ASSERT(PreparseDataConstants::kMessageTextPos == 3);
+ WriteString(CStrVector(message));
+ if (arg_opt) WriteString(CStrVector(arg_opt));
+ is_recording_ = false;
+}
+
+
+void FunctionLoggingParserRecorder::WriteString(Vector<const char> str) {
+ function_store_.Add(str.length());
+ for (int i = 0; i < str.length(); i++) {
+ function_store_.Add(str[i]);
+ }
+}
+
+// ----------------------------------------------------------------------------
+// PartialParserRecorder - Record both function entries and symbols.
+
+Vector<unsigned> PartialParserRecorder::ExtractData() {
+ int function_size = function_store_.size();
+ int total_size = PreparseDataConstants::kHeaderSize + function_size;
+ Vector<unsigned> data = Vector<unsigned>::New(total_size);
+ preamble_[PreparseDataConstants::kFunctionsSizeOffset] = function_size;
+ preamble_[PreparseDataConstants::kSymbolCountOffset] = 0;
+ memcpy(data.start(), preamble_, sizeof(preamble_));
+ int symbol_start = PreparseDataConstants::kHeaderSize + function_size;
+ if (function_size > 0) {
+ function_store_.WriteTo(data.SubVector(PreparseDataConstants::kHeaderSize,
+ symbol_start));
+ }
+ return data;
+}
+
+
+// ----------------------------------------------------------------------------
+// CompleteParserRecorder - Record both function entries and symbols.
+
+CompleteParserRecorder::CompleteParserRecorder()
+ : FunctionLoggingParserRecorder(),
+ symbol_store_(0),
+ symbol_entries_(0),
+ symbol_table_(vector_compare),
+ symbol_id_(0) {
+}
+
+
+void CompleteParserRecorder::LogSymbol(
+ int start, const char* literal_chars, int length) {
+ if (!is_recording_) return;
+
+ Vector<const char> literal(literal_chars, length);
+ int hash = vector_hash(literal);
+ HashMap::Entry* entry = symbol_table_.Lookup(&literal, hash, true);
+ int id = static_cast<int>(reinterpret_cast<intptr_t>(entry->value));
+ if (id == 0) {
+ // Put (symbol_id_ + 1) into entry and increment it.
+ id = ++symbol_id_;
+ entry->value = reinterpret_cast<void*>(id);
+ Vector<Vector<const char> > symbol = symbol_entries_.AddBlock(1, literal);
+ entry->key = &symbol[0];
+ }
+ WriteNumber(id - 1);
+}
+
+
+Vector<unsigned> CompleteParserRecorder::ExtractData() {
+ int function_size = function_store_.size();
+ // Add terminator to symbols, then pad to unsigned size.
+ int symbol_size = symbol_store_.size();
+ int padding = sizeof(unsigned) - (symbol_size % sizeof(unsigned));
+ symbol_store_.AddBlock(padding, PreparseDataConstants::kNumberTerminator);
+ symbol_size += padding;
+ int total_size = PreparseDataConstants::kHeaderSize + function_size
+ + (symbol_size / sizeof(unsigned));
+ Vector<unsigned> data = Vector<unsigned>::New(total_size);
+ preamble_[PreparseDataConstants::kFunctionsSizeOffset] = function_size;
+ preamble_[PreparseDataConstants::kSymbolCountOffset] = symbol_id_;
+ memcpy(data.start(), preamble_, sizeof(preamble_));
+ int symbol_start = PreparseDataConstants::kHeaderSize + function_size;
+ if (function_size > 0) {
+ function_store_.WriteTo(data.SubVector(PreparseDataConstants::kHeaderSize,
+ symbol_start));
+ }
+ if (!has_error()) {
+ symbol_store_.WriteTo(
+ Vector<byte>::cast(data.SubVector(symbol_start, total_size)));
+ }
+ return data;
+}
+
+
+void CompleteParserRecorder::WriteNumber(int number) {
+ ASSERT(number >= 0);
+
+ int mask = (1 << 28) - 1;
+ for (int i = 28; i > 0; i -= 7) {
+ if (number > mask) {
+ symbol_store_.Add(static_cast<byte>(number >> i) | 0x80u);
+ number &= mask;
+ }
+ mask >>= 7;
+ }
+ symbol_store_.Add(static_cast<byte>(number));
+}
+
+
+} } // namespace v8::internal.