Revert "Support external startup data in V8."

src/snapshot-external.cc

Index: src/snapshot-external.cc
diff --git a/src/snapshot-external.cc b/src/snapshot-external.cc
deleted file mode 100644
index 5bfadc2a6354fe95de3bcf9369c7daaac6115911..0000000000000000000000000000000000000000
--- a/src/snapshot-external.cc
+++ /dev/null
@@ -1,140 +0,0 @@
-// Copyright 2006-2008 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Used for building with external snapshots.
-
-#include "src/snapshot.h"
-
-#include "src/v8.h"  // for V8::Initialize
-#include "src/serialize.h"
-#include "src/snapshot-source-sink.h"
-
-namespace v8 {
-namespace internal {
-
-
-struct SnapshotImpl {
- public:
-  const byte* data;
-  int size;
-  int new_space_used;
-  int pointer_space_used;
-  int data_space_used;
-  int code_space_used;
-  int map_space_used;
-  int cell_space_used;
-  int property_cell_space_used;
-
-  const byte* context_data;
-  int context_size;
-  int context_new_space_used;
-  int context_pointer_space_used;
-  int context_data_space_used;
-  int context_code_space_used;
-  int context_map_space_used;
-  int context_cell_space_used;
-  int context_property_cell_space_used;
-};
-
-
-static SnapshotImpl* snapshot_impl_ = NULL;
-
-
-bool Snapshot::HaveASnapshotToStartFrom() {
-  return snapshot_impl_ != NULL;
-}
-
-
-bool Snapshot::Initialize() {
-  if (!HaveASnapshotToStartFrom())
-    return false;
-
-  ElapsedTimer timer;
-  if (FLAG_profile_deserialization) {
-    timer.Start();
-  }
-  SnapshotByteSource source(snapshot_impl_->data, snapshot_impl_->size);
-  Deserializer deserializer(&source);
-  deserializer.set_reservation(NEW_SPACE, snapshot_impl_->new_space_used);
-  deserializer.set_reservation(OLD_POINTER_SPACE,
-                               snapshot_impl_->pointer_space_used);
-  deserializer.set_reservation(OLD_DATA_SPACE,
-                               snapshot_impl_->data_space_used);
-  deserializer.set_reservation(CODE_SPACE, snapshot_impl_->code_space_used);
-  deserializer.set_reservation(MAP_SPACE, snapshot_impl_->map_space_used);
-  deserializer.set_reservation(CELL_SPACE, snapshot_impl_->cell_space_used);
-  deserializer.set_reservation(PROPERTY_CELL_SPACE,
-                               snapshot_impl_->property_cell_space_used);
-  bool success = V8::Initialize(&deserializer);
-  if (FLAG_profile_deserialization) {
-    double ms = timer.Elapsed().InMillisecondsF();
-    PrintF("[Snapshot loading and deserialization took %0.3f ms]\n", ms);
-  }
-  return success;
-}
-
-
-Handle<Context> Snapshot::NewContextFromSnapshot(Isolate* isolate) {
-  if (!HaveASnapshotToStartFrom())
-    return Handle<Context>();
-
-  SnapshotByteSource source(snapshot_impl_->context_data,
-                            snapshot_impl_->context_size);
-  Deserializer deserializer(&source);
-  deserializer.set_reservation(NEW_SPACE,
-                               snapshot_impl_->context_new_space_used);
-  deserializer.set_reservation(OLD_POINTER_SPACE,
-                               snapshot_impl_->context_pointer_space_used);
-  deserializer.set_reservation(OLD_DATA_SPACE,
-                               snapshot_impl_->context_data_space_used);
-  deserializer.set_reservation(CODE_SPACE,
-                               snapshot_impl_->context_code_space_used);
-  deserializer.set_reservation(MAP_SPACE,
-                               snapshot_impl_->context_map_space_used);
-  deserializer.set_reservation(CELL_SPACE,
-                               snapshot_impl_->context_cell_space_used);
-  deserializer.set_reservation(PROPERTY_CELL_SPACE,
-                               snapshot_impl_->
-                                   context_property_cell_space_used);
-  Object* root;
-  deserializer.DeserializePartial(isolate, &root);
-  CHECK(root->IsContext());
-  return Handle<Context>(Context::cast(root));
-}
-
-
-void SetSnapshotFromFile(StartupData* snapshot_blob) {
-  ASSERT(snapshot_blob);
-  ASSERT(snapshot_blob->data);
-  ASSERT(snapshot_blob->raw_size > 0);
-  ASSERT(!snapshot_impl_);
-
-  snapshot_impl_ = new SnapshotImpl;
-  SnapshotByteSource source(reinterpret_cast<const byte*>(snapshot_blob->data),
-                            snapshot_blob->raw_size);
-
-  bool success = source.GetBlob(&snapshot_impl_->data,
-                                &snapshot_impl_->size);
-  snapshot_impl_->new_space_used = source.GetInt();
-  snapshot_impl_->pointer_space_used = source.GetInt();
-  snapshot_impl_->data_space_used = source.GetInt();
-  snapshot_impl_->code_space_used = source.GetInt();
-  snapshot_impl_->map_space_used = source.GetInt();
-  snapshot_impl_->cell_space_used = source.GetInt();
-  snapshot_impl_->property_cell_space_used = source.GetInt();
-
-  success &= source.GetBlob(&snapshot_impl_->context_data,
-                            &snapshot_impl_->context_size);
-  snapshot_impl_->context_new_space_used = source.GetInt();
-  snapshot_impl_->context_pointer_space_used = source.GetInt();
-  snapshot_impl_->context_data_space_used = source.GetInt();
-  snapshot_impl_->context_code_space_used = source.GetInt();
-  snapshot_impl_->context_map_space_used = source.GetInt();
-  snapshot_impl_->context_cell_space_used = source.GetInt();
-  snapshot_impl_->context_property_cell_space_used = source.GetInt();
-
-  ASSERT(success);
-}
-
-} }  // namespace v8::internal