Serializer: move to a subfolder and clean up includes.

src/natives-external.cc

-// Copyright 2014 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.
-
-#include "src/natives.h"
-
-#include "src/base/logging.h"
-#include "src/list.h"
-#include "src/list-inl.h"
-#include "src/snapshot-source-sink.h"
-#include "src/vector.h"
-
-#ifndef V8_USE_EXTERNAL_STARTUP_DATA
-#error natives-external.cc is used only for the external snapshot build.
-#endif  // V8_USE_EXTERNAL_STARTUP_DATA
-
-
-namespace v8 {
-namespace internal {
-
-
-/**
- * NativesStore stores the 'native' (builtin) JS libraries.
- *
- * NativesStore needs to be initialized before using V8, usually by the
- * embedder calling v8::SetNativesDataBlob, which calls SetNativesFromFile
- * below.
- */
-class NativesStore {
- public:
-  ~NativesStore() {
-    for (int i = 0; i < native_names_.length(); i++) {
-      native_names_[i].Dispose();
-    }
-  }
-
-  int GetBuiltinsCount() { return native_ids_.length(); }
-  int GetDebuggerCount() { return debugger_count_; }
-
-  Vector<const char> GetScriptSource(int index) {
-    return native_source_[index];
-  }
-
-  Vector<const char> GetScriptName(int index) { return native_names_[index]; }
-
-  int GetIndex(const char* id) {
-    for (int i = 0; i < native_ids_.length(); ++i) {
-      int native_id_length = native_ids_[i].length();
-      if ((static_cast<int>(strlen(id)) == native_id_length) &&
-          (strncmp(id, native_ids_[i].start(), native_id_length) == 0)) {
-        return i;
-      }
-    }
-    DCHECK(false);
-    return -1;
-  }
-
-  Vector<const char> GetScriptsSource() {
-    DCHECK(false);  // Not implemented.
-    return Vector<const char>();
-  }
-
-  static NativesStore* MakeFromScriptsSource(SnapshotByteSource* source) {
-    NativesStore* store = new NativesStore;
-
-    // We expect the libraries in the following format:
-    //   int: # of debugger sources.
-    //   2N blobs: N pairs of source name + actual source.
-    //   then, repeat for non-debugger sources.
-    int debugger_count = source->GetInt();
-    for (int i = 0; i < debugger_count; ++i)
-      store->ReadNameAndContentPair(source);
-    int library_count = source->GetInt();
-    for (int i = 0; i < library_count; ++i)
-      store->ReadNameAndContentPair(source);
-
-    store->debugger_count_ = debugger_count;
-    return store;
-  }
-
- private:
-  NativesStore() : debugger_count_(0) {}
-
-  Vector<const char> NameFromId(const byte* id, int id_length) {
-    const char native[] = "native ";
-    const char extension[] = ".js";
-    Vector<char> name(Vector<char>::New(id_length + sizeof(native) - 1 +
-                                        sizeof(extension) - 1));
-    memcpy(name.start(), native, sizeof(native) - 1);
-    memcpy(name.start() + sizeof(native) - 1, id, id_length);
-    memcpy(name.start() + sizeof(native) - 1 + id_length, extension,
-           sizeof(extension) - 1);
-    return Vector<const char>::cast(name);
-  }
-
-  bool ReadNameAndContentPair(SnapshotByteSource* bytes) {
-    const byte* id;
-    int id_length;
-    const byte* source;
-    int source_length;
-    bool success = bytes->GetBlob(&id, &id_length) &&
-                   bytes->GetBlob(&source, &source_length);
-    if (success) {
-      Vector<const char> id_vector(reinterpret_cast<const char*>(id),
-                                   id_length);
-      Vector<const char> source_vector(
-          reinterpret_cast<const char*>(source), source_length);
-      native_ids_.Add(id_vector);
-      native_source_.Add(source_vector);
-      native_names_.Add(NameFromId(id, id_length));
-    }
-    return success;
-  }
-
-  List<Vector<const char> > native_ids_;
-  List<Vector<const char> > native_names_;
-  List<Vector<const char> > native_source_;
-  int debugger_count_;
-
-  DISALLOW_COPY_AND_ASSIGN(NativesStore);
-};
-
-
-template<NativeType type>
-class NativesHolder {
- public:
-  static NativesStore* get() {
-    DCHECK(holder_);
-    return holder_;
-  }
-  static void set(NativesStore* store) {
-    DCHECK(store);
-    holder_ = store;
-  }
-  static bool empty() { return holder_ == NULL; }
-  static void Dispose() {
-    delete holder_;
-    holder_ = NULL;
-  }
-
- private:
-  static NativesStore* holder_;
-};
-
-template<NativeType type>
-NativesStore* NativesHolder<type>::holder_ = NULL;
-
-
-// The natives blob. Memory is owned by caller.
-static StartupData* natives_blob_ = NULL;
-
-
-/**
- * Read the Natives blob, as previously set by SetNativesFromFile.
- */
-void ReadNatives() {
-  if (natives_blob_ && NativesHolder<CORE>::empty()) {
-    SnapshotByteSource bytes(natives_blob_->data, natives_blob_->raw_size);
-    NativesHolder<CORE>::set(NativesStore::MakeFromScriptsSource(&bytes));
-    NativesHolder<EXPERIMENTAL>::set(
-        NativesStore::MakeFromScriptsSource(&bytes));
-    DCHECK(!bytes.HasMore());
-  }
-}
-
-
-/**
- * Set the Natives (library sources) blob, as generated by js2c + the build
- * system.
- */
-void SetNativesFromFile(StartupData* natives_blob) {
-  DCHECK(!natives_blob_);
-  DCHECK(natives_blob);
-  DCHECK(natives_blob->data);
-  DCHECK(natives_blob->raw_size > 0);
-
-  natives_blob_ = natives_blob;
-  ReadNatives();
-}
-
-
-/**
- * Release memory allocated by SetNativesFromFile.
- */
-void DisposeNatives() {
-  NativesHolder<CORE>::Dispose();
-  NativesHolder<EXPERIMENTAL>::Dispose();
-}
-
-
-// Implement NativesCollection<T> bsaed on NativesHolder + NativesStore.
-//
-// (The callers expect a purely static interface, since this is how the
-//  natives are usually compiled in. Since we implement them based on
-//  runtime content, we have to implement this indirection to offer
-//  a static interface.)
-template<NativeType type>
-int NativesCollection<type>::GetBuiltinsCount() {
-  return NativesHolder<type>::get()->GetBuiltinsCount();
-}
-
-template<NativeType type>
-int NativesCollection<type>::GetDebuggerCount() {
-  return NativesHolder<type>::get()->GetDebuggerCount();
-}
-
-template<NativeType type>
-int NativesCollection<type>::GetIndex(const char* name) {
-  return NativesHolder<type>::get()->GetIndex(name);
-}
-
-template <NativeType type>
-Vector<const char> NativesCollection<type>::GetScriptSource(int index) {
-  return NativesHolder<type>::get()->GetScriptSource(index);
-}
-
-template<NativeType type>
-Vector<const char> NativesCollection<type>::GetScriptName(int index) {
-  return NativesHolder<type>::get()->GetScriptName(index);
-}
-
-template <NativeType type>
-Vector<const char> NativesCollection<type>::GetScriptsSource() {
-  return NativesHolder<type>::get()->GetScriptsSource();
-}
-
-
-// The compiler can't 'see' all uses of the static methods and hence
-// my choice to elide them. This we'll explicitly instantiate these.
-template class NativesCollection<CORE>;
-template class NativesCollection<EXPERIMENTAL>;
-
-}  // namespace v8::internal
-}  // namespace v8