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+// Copyright 2006-2008 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.
+
+// The common functionality when building with or without snapshots.
+
+#include "v8.h"
+
+#include "api.h"
+#include "serialize.h"
+#include "snapshot.h"
+#include "platform.h"
+
+namespace v8 {
+namespace internal {
+
+bool Snapshot::Deserialize(const byte* content, int len) {
+ SnapshotByteSource source(content, len);
+ Deserializer deserializer(&source);
+ return V8::Initialize(&deserializer);
+}
+
+
+bool Snapshot::Initialize(const char* snapshot_file) {
+ if (snapshot_file) {
+ int len;
+ byte* str = ReadBytes(snapshot_file, &len);
+ if (!str) return false;
+ Deserialize(str, len);
+ DeleteArray(str);
+ return true;
+ } else if (size_ > 0) {
+ Deserialize(data_, size_);
+ return true;
+ }
+ return false;
+}
+
+
+Handle<Context> Snapshot::NewContextFromSnapshot() {
+ if (context_size_ == 0) {
+ return Handle<Context>();
+ }
+ HEAP->ReserveSpace(new_space_used_,
+ pointer_space_used_,
+ data_space_used_,
+ code_space_used_,
+ map_space_used_,
+ cell_space_used_,
+ large_space_used_);
+ SnapshotByteSource source(context_data_, context_size_);
+ Deserializer deserializer(&source);
+ Object* root;
+ deserializer.DeserializePartial(&root);
+ CHECK(root->IsContext());
+ return Handle<Context>(Context::cast(root));
+}
+
+} } // namespace v8::internal