Move V8 to external/v8

Change-Id: If68025d67453785a651c5dfb34fad298c16676a4

2 files changed, 3367 insertions, 0 deletions

diff --git a/include/v8-debug.h b/include/v8-debug.h
new file mode 100644
index 00000000..3c5c923b
--- /dev/null
+++ b/include/v8-debug.h
@@ -0,0 +1,255 @@
+// Copyright 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.
+
+#ifndef V8_V8_DEBUG_H_
+#define V8_V8_DEBUG_H_
+
+#include "v8.h"
+
+#ifdef _WIN32
+typedef int int32_t;
+typedef unsigned int uint32_t;
+typedef unsigned short uint16_t;  // NOLINT
+typedef long long int64_t;  // NOLINT
+
+// Setup for Windows DLL export/import. See v8.h in this directory for
+// information on how to build/use V8 as a DLL.
+#if defined(BUILDING_V8_SHARED) && defined(USING_V8_SHARED)
+#error both BUILDING_V8_SHARED and USING_V8_SHARED are set - please check the\
+  build configuration to ensure that at most one of these is set
+#endif
+
+#ifdef BUILDING_V8_SHARED
+#define EXPORT __declspec(dllexport)
+#elif USING_V8_SHARED
+#define EXPORT __declspec(dllimport)
+#else
+#define EXPORT
+#endif
+
+#else  // _WIN32
+
+// Setup for Linux shared library export. See v8.h in this directory for
+// information on how to build/use V8 as shared library.
+#if defined(__GNUC__) && (__GNUC__ >= 4) && defined(V8_SHARED)
+#define EXPORT __attribute__ ((visibility("default")))
+#else  // defined(__GNUC__) && (__GNUC__ >= 4)
+#define EXPORT
+#endif  // defined(__GNUC__) && (__GNUC__ >= 4)
+
+#endif  // _WIN32
+
+
+/**
+ * Debugger support for the V8 JavaScript engine.
+ */
+namespace v8 {
+
+// Debug events which can occur in the V8 JavaScript engine.
+enum DebugEvent {
+  Break = 1,
+  Exception = 2,
+  NewFunction = 3,
+  BeforeCompile = 4,
+  AfterCompile  = 5,
+  ScriptCollected = 6
+};
+
+
+class EXPORT Debug {
+ public:
+  /**
+   * A client object passed to the v8 debugger whose ownership will be taken by
+   * it. v8 is always responsible for deleting the object.
+   */
+  class ClientData {
+   public:
+    virtual ~ClientData() {}
+  };
+
+
+  /**
+   * A message object passed to the debug message handler.
+   */
+  class Message {
+   public:
+    /**
+     * Check type of message.
+     */
+    virtual bool IsEvent() const = 0;
+    virtual bool IsResponse() const = 0;
+    virtual DebugEvent GetEvent() const = 0;
+
+    /**
+     * Indicate whether this is a response to a continue command which will
+     * start the VM running after this is processed.
+     */
+    virtual bool WillStartRunning() const = 0;
+
+    /**
+     * Access to execution state and event data. Don't store these cross
+     * callbacks as their content becomes invalid. These objects are from the
+     * debugger event that started the debug message loop.
+     */
+    virtual Handle<Object> GetExecutionState() const = 0;
+    virtual Handle<Object> GetEventData() const = 0;
+
+    /**
+     * Get the debugger protocol JSON.
+     */
+    virtual Handle<String> GetJSON() const = 0;
+
+    /**
+     * Get the context active when the debug event happened. Note this is not
+     * the current active context as the JavaScript part of the debugger is
+     * running in it's own context which is entered at this point.
+     */
+    virtual Handle<Context> GetEventContext() const = 0;
+
+    /**
+     * Client data passed with the corresponding request if any. This is the
+     * client_data data value passed into Debug::SendCommand along with the
+     * request that led to the message or NULL if the message is an event. The
+     * debugger takes ownership of the data and will delete it even if there is
+     * no message handler.
+     */
+    virtual ClientData* GetClientData() const = 0;
+
+    virtual ~Message() {}
+  };
+  
+
+  /**
+   * Debug event callback function.
+   *
+   * \param event the type of the debug event that triggered the callback
+   *   (enum DebugEvent)
+   * \param exec_state execution state (JavaScript object)
+   * \param event_data event specific data (JavaScript object)
+   * \param data value passed by the user to SetDebugEventListener
+   */
+  typedef void (*EventCallback)(DebugEvent event,
+                                Handle<Object> exec_state,
+                                Handle<Object> event_data,
+                                Handle<Value> data);
+
+
+  /**
+   * Debug message callback function.
+   *
+   * \param message the debug message handler message object
+   * \param length length of the message
+   * \param client_data the data value passed when registering the message handler
+
+   * A MessageHandler does not take posession of the message string,
+   * and must not rely on the data persisting after the handler returns.
+   *
+   * This message handler is deprecated. Use MessageHandler2 instead.
+   */
+  typedef void (*MessageHandler)(const uint16_t* message, int length,
+                                 ClientData* client_data);
+
+  /**
+   * Debug message callback function.
+   *
+   * \param message the debug message handler message object
+
+   * A MessageHandler does not take posession of the message data,
+   * and must not rely on the data persisting after the handler returns.
+   */
+  typedef void (*MessageHandler2)(const Message& message);
+
+  /**
+   * Debug host dispatch callback function.
+   */
+  typedef void (*HostDispatchHandler)();
+
+  // Set a C debug event listener.
+  static bool SetDebugEventListener(EventCallback that,
+                                    Handle<Value> data = Handle<Value>());
+
+  // Set a JavaScript debug event listener.
+  static bool SetDebugEventListener(v8::Handle<v8::Object> that,
+                                    Handle<Value> data = Handle<Value>());
+
+  // Break execution of JavaScript.
+  static void DebugBreak();
+
+  // Message based interface. The message protocol is JSON. NOTE the message
+  // handler thread is not supported any more parameter must be false.
+  static void SetMessageHandler(MessageHandler handler,
+                                bool message_handler_thread = false);
+  static void SetMessageHandler2(MessageHandler2 handler);
+  static void SendCommand(const uint16_t* command, int length,
+                          ClientData* client_data = NULL);
+
+  // Dispatch interface.
+  static void SetHostDispatchHandler(HostDispatchHandler handler,
+                                     int period = 100);
+
+ /**
+  * Run a JavaScript function in the debugger.
+  * \param fun the function to call
+  * \param data passed as second argument to the function
+  * With this call the debugger is entered and the function specified is called
+  * with the execution state as the first argument. This makes it possible to
+  * get access to information otherwise not available during normal JavaScript
+  * execution e.g. details on stack frames. The following example show a
+  * JavaScript function which when passed to v8::Debug::Call will return the
+  * current line of JavaScript execution.
+  *
+  * \code
+  *   function frame_source_line(exec_state) {
+  *     return exec_state.frame(0).sourceLine();
+  *   }
+  * \endcode
+  */
+  static Local<Value> Call(v8::Handle<v8::Function> fun,
+                            Handle<Value> data = Handle<Value>());
+
+  /**
+   * Returns a mirror object for the given object.
+   */
+  static Local<Value> GetMirror(v8::Handle<v8::Value> obj);
+
+ /**
+  * Enable the V8 builtin debug agent. The debugger agent will listen on the
+  * supplied TCP/IP port for remote debugger connection.
+  * \param name the name of the embedding application
+  * \param port the TCP/IP port to listen on
+  */
+  static bool EnableAgent(const char* name, int port);
+};
+
+
+}  // namespace v8
+
+
+#undef EXPORT
+
+
+#endif  // V8_V8_DEBUG_H_
diff --git a/include/v8.h b/include/v8.h
new file mode 100644
index 00000000..4992d755
--- /dev/null
+++ b/include/v8.h
@@ -0,0 +1,3112 @@
+// Copyright 2007-2009 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.
+
+/** \mainpage V8 API Reference Guide
+ *
+ * V8 is Google's open source JavaScript engine.
+ *
+ * This set of documents provides reference material generated from the
+ * V8 header file, include/v8.h.
+ *
+ * For other documentation see http://code.google.com/apis/v8/
+ */
+
+#ifndef V8_H_
+#define V8_H_
+
+#include <stdio.h>
+
+#ifdef _WIN32
+// When compiling on MinGW stdint.h is available.
+#ifdef __MINGW32__
+#include <stdint.h>
+#else  // __MINGW32__
+typedef signed char int8_t;
+typedef unsigned char uint8_t;
+typedef short int16_t;  // NOLINT
+typedef unsigned short uint16_t;  // NOLINT
+typedef int int32_t;
+typedef unsigned int uint32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+// intptr_t and friends are defined in crtdefs.h through stdio.h.
+#endif  // __MINGW32__
+
+// Setup for Windows DLL export/import. When building the V8 DLL the
+// BUILDING_V8_SHARED needs to be defined. When building a program which uses
+// the V8 DLL USING_V8_SHARED needs to be defined. When either building the V8
+// static library or building a program which uses the V8 static library neither
+// BUILDING_V8_SHARED nor USING_V8_SHARED should be defined.
+// The reason for having both V8EXPORT and V8EXPORT_INLINE is that classes which
+// have their code inside this header file need to have __declspec(dllexport)
+// when building the DLL but cannot have __declspec(dllimport) when building
+// a program which uses the DLL.
+#if defined(BUILDING_V8_SHARED) && defined(USING_V8_SHARED)
+#error both BUILDING_V8_SHARED and USING_V8_SHARED are set - please check the\
+  build configuration to ensure that at most one of these is set
+#endif
+
+#ifdef BUILDING_V8_SHARED
+#define V8EXPORT __declspec(dllexport)
+#define V8EXPORT_INLINE __declspec(dllexport)
+#elif USING_V8_SHARED
+#define V8EXPORT __declspec(dllimport)
+#define V8EXPORT_INLINE
+#else
+#define V8EXPORT
+#define V8EXPORT_INLINE
+#endif  // BUILDING_V8_SHARED
+
+#else  // _WIN32
+
+#include <stdint.h>
+
+// Setup for Linux shared library export. There is no need to distinguish
+// between building or using the V8 shared library, but we should not
+// export symbols when we are building a static library.
+#if defined(__GNUC__) && (__GNUC__ >= 4) && defined(V8_SHARED)
+#define V8EXPORT __attribute__ ((visibility("default")))
+#define V8EXPORT_INLINE __attribute__ ((visibility("default")))
+#else  // defined(__GNUC__) && (__GNUC__ >= 4)
+#define V8EXPORT
+#define V8EXPORT_INLINE
+#endif  // defined(__GNUC__) && (__GNUC__ >= 4)
+
+#endif  // _WIN32
+
+/**
+ * The v8 JavaScript engine.
+ */
+namespace v8 {
+
+class Context;
+class String;
+class Value;
+class Utils;
+class Number;
+class Object;
+class Array;
+class Int32;
+class Uint32;
+class External;
+class Primitive;
+class Boolean;
+class Integer;
+class Function;
+class Date;
+class ImplementationUtilities;
+class Signature;
+template <class T> class Handle;
+template <class T> class Local;
+template <class T> class Persistent;
+class FunctionTemplate;
+class ObjectTemplate;
+class Data;
+
+namespace internal {
+
+class Object;
+class Arguments;
+
+}
+
+
+// --- W e a k  H a n d l e s
+
+
+/**
+ * A weak reference callback function.
+ *
+ * \param object the weak global object to be reclaimed by the garbage collector
+ * \param parameter the value passed in when making the weak global object
+ */
+typedef void (*WeakReferenceCallback)(Persistent<Value> object,
+                                      void* parameter);
+
+
+// --- H a n d l e s ---
+
+#define TYPE_CHECK(T, S)                              \
+  while (false) {                                     \
+    *(static_cast<T**>(0)) = static_cast<S*>(0);      \
+  }
+
+/**
+ * An object reference managed by the v8 garbage collector.
+ *
+ * All objects returned from v8 have to be tracked by the garbage
+ * collector so that it knows that the objects are still alive.  Also,
+ * because the garbage collector may move objects, it is unsafe to
+ * point directly to an object.  Instead, all objects are stored in
+ * handles which are known by the garbage collector and updated
+ * whenever an object moves.  Handles should always be passed by value
+ * (except in cases like out-parameters) and they should never be
+ * allocated on the heap.
+ *
+ * There are two types of handles: local and persistent handles.
+ * Local handles are light-weight and transient and typically used in
+ * local operations.  They are managed by HandleScopes.  Persistent
+ * handles can be used when storing objects across several independent
+ * operations and have to be explicitly deallocated when they're no
+ * longer used.
+ *
+ * It is safe to extract the object stored in the handle by
+ * dereferencing the handle (for instance, to extract the Object* from
+ * an Handle<Object>); the value will still be governed by a handle
+ * behind the scenes and the same rules apply to these values as to
+ * their handles.
+ */
+template <class T> class V8EXPORT_INLINE Handle {
+ public:
+
+  /**
+   * Creates an empty handle.
+   */
+  inline Handle();
+
+  /**
+   * Creates a new handle for the specified value.
+   */
+  explicit Handle(T* val) : val_(val) { }
+
+  /**
+   * Creates a handle for the contents of the specified handle.  This
+   * constructor allows you to pass handles as arguments by value and
+   * to assign between handles.  However, if you try to assign between
+   * incompatible handles, for instance from a Handle<String> to a
+   * Handle<Number> it will cause a compiletime error.  Assigning
+   * between compatible handles, for instance assigning a
+   * Handle<String> to a variable declared as Handle<Value>, is legal
+   * because String is a subclass of Value.
+   */
+  template <class S> inline Handle(Handle<S> that)
+      : val_(reinterpret_cast<T*>(*that)) {
+    /**
+     * This check fails when trying to convert between incompatible
+     * handles. For example, converting from a Handle<String> to a
+     * Handle<Number>.
+     */
+    TYPE_CHECK(T, S);
+  }
+
+  /**
+   * Returns true if the handle is empty.
+   */
+  bool IsEmpty() const { return val_ == 0; }
+
+  T* operator->() const { return val_; }
+
+  T* operator*() const { return val_; }
+
+  /**
+   * Sets the handle to be empty. IsEmpty() will then return true.
+   */
+  void Clear() { this->val_ = 0; }
+
+  /**
+   * Checks whether two handles are the same.
+   * Returns true if both are empty, or if the objects
+   * to which they refer are identical.
+   * The handles' references are not checked.
+   */
+  template <class S> bool operator==(Handle<S> that) const {
+    internal::Object** a = reinterpret_cast<internal::Object**>(**this);
+    internal::Object** b = reinterpret_cast<internal::Object**>(*that);
+    if (a == 0) return b == 0;
+    if (b == 0) return false;
+    return *a == *b;
+  }
+
+  /**
+   * Checks whether two handles are different.
+   * Returns true if only one of the handles is empty, or if
+   * the objects to which they refer are different.
+   * The handles' references are not checked.
+   */
+  template <class S> bool operator!=(Handle<S> that) const {
+    return !operator==(that);
+  }
+
+  template <class S> static inline Handle<T> Cast(Handle<S> that) {
+#ifdef V8_ENABLE_CHECKS
+    // If we're going to perform the type check then we have to check
+    // that the handle isn't empty before doing the checked cast.
+    if (that.IsEmpty()) return Handle<T>();
+#endif
+    return Handle<T>(T::Cast(*that));
+  }
+
+ private:
+  T* val_;
+};
+
+
+/**
+ * A light-weight stack-allocated object handle.  All operations
+ * that return objects from within v8 return them in local handles.  They
+ * are created within HandleScopes, and all local handles allocated within a
+ * handle scope are destroyed when the handle scope is destroyed.  Hence it
+ * is not necessary to explicitly deallocate local handles.
+ */
+template <class T> class V8EXPORT_INLINE Local : public Handle<T> {
+ public:
+  inline Local();
+  template <class S> inline Local(Local<S> that)
+      : Handle<T>(reinterpret_cast<T*>(*that)) {
+    /**
+     * This check fails when trying to convert between incompatible
+     * handles. For example, converting from a Handle<String> to a
+     * Handle<Number>.
+     */
+    TYPE_CHECK(T, S);
+  }
+  template <class S> inline Local(S* that) : Handle<T>(that) { }
+  template <class S> static inline Local<T> Cast(Local<S> that) {
+#ifdef V8_ENABLE_CHECKS
+    // If we're going to perform the type check then we have to check
+    // that the handle isn't empty before doing the checked cast.
+    if (that.IsEmpty()) return Local<T>();
+#endif
+    return Local<T>(T::Cast(*that));
+  }
+
+  /** Create a local handle for the content of another handle.
+   *  The referee is kept alive by the local handle even when
+   *  the original handle is destroyed/disposed.
+   */
+  inline static Local<T> New(Handle<T> that);
+};
+
+
+/**
+ * An object reference that is independent of any handle scope.  Where
+ * a Local handle only lives as long as the HandleScope in which it was
+ * allocated, a Persistent handle remains valid until it is explicitly
+ * disposed.
+ *
+ * A persistent handle contains a reference to a storage cell within
+ * the v8 engine which holds an object value and which is updated by
+ * the garbage collector whenever the object is moved.  A new storage
+ * cell can be created using Persistent::New and existing handles can
+ * be disposed using Persistent::Dispose.  Since persistent handles
+ * are passed by value you may have many persistent handle objects
+ * that point to the same storage cell.  For instance, if you pass a
+ * persistent handle as an argument to a function you will not get two
+ * different storage cells but rather two references to the same
+ * storage cell.
+ */
+template <class T> class V8EXPORT_INLINE Persistent : public Handle<T> {
+ public:
+
+  /**
+   * Creates an empty persistent handle that doesn't point to any
+   * storage cell.
+   */
+  inline Persistent();
+
+  /**
+   * Creates a persistent handle for the same storage cell as the
+   * specified handle.  This constructor allows you to pass persistent
+   * handles as arguments by value and to assign between persistent
+   * handles.  However, attempting to assign between incompatible
+   * persistent handles, for instance from a Persistent<String> to a
+   * Persistent<Number> will cause a compiletime error.  Assigning
+   * between compatible persistent handles, for instance assigning a
+   * Persistent<String> to a variable declared as Persistent<Value>,
+   * is allowed as String is a subclass of Value.
+   */
+  template <class S> inline Persistent(Persistent<S> that)
+      : Handle<T>(reinterpret_cast<T*>(*that)) {
+    /**
+     * This check fails when trying to convert between incompatible
+     * handles. For example, converting from a Handle<String> to a
+     * Handle<Number>.
+     */
+    TYPE_CHECK(T, S);
+  }
+
+  template <class S> inline Persistent(S* that) : Handle<T>(that) { }
+
+  /**
+   * "Casts" a plain handle which is known to be a persistent handle
+   * to a persistent handle.
+   */
+  template <class S> explicit inline Persistent(Handle<S> that)
+      : Handle<T>(*that) { }
+
+  template <class S> static inline Persistent<T> Cast(Persistent<S> that) {
+#ifdef V8_ENABLE_CHECKS
+    // If we're going to perform the type check then we have to check
+    // that the handle isn't empty before doing the checked cast.
+    if (that.IsEmpty()) return Persistent<T>();
+#endif
+    return Persistent<T>(T::Cast(*that));
+  }
+
+  /**
+   * Creates a new persistent handle for an existing local or
+   * persistent handle.
+   */
+  inline static Persistent<T> New(Handle<T> that);
+
+  /**
+   * Releases the storage cell referenced by this persistent handle.
+   * Does not remove the reference to the cell from any handles.
+   * This handle's reference, and any any other references to the storage
+   * cell remain and IsEmpty will still return false.
+   */
+  inline void Dispose();
+
+  /**
+   * Make the reference to this object weak.  When only weak handles
+   * refer to the object, the garbage collector will perform a
+   * callback to the given V8::WeakReferenceCallback function, passing
+   * it the object reference and the given parameters.
+   */
+  inline void MakeWeak(void* parameters, WeakReferenceCallback callback);
+
+  /** Clears the weak reference to this object.*/
+  inline void ClearWeak();
+
+  /**
+   *Checks if the handle holds the only reference to an object.
+   */
+  inline bool IsNearDeath() const;
+
+  /**
+   * Returns true if the handle's reference is weak.
+   */
+  inline bool IsWeak() const;
+
+ private:
+  friend class ImplementationUtilities;
+  friend class ObjectTemplate;
+};
+
+
+ /**
+ * A stack-allocated class that governs a number of local handles.
+ * After a handle scope has been created, all local handles will be
+ * allocated within that handle scope until either the handle scope is
+ * deleted or another handle scope is created.  If there is already a
+ * handle scope and a new one is created, all allocations will take
+ * place in the new handle scope until it is deleted.  After that,
+ * new handles will again be allocated in the original handle scope.
+ *
+ * After the handle scope of a local handle has been deleted the
+ * garbage collector will no longer track the object stored in the
+ * handle and may deallocate it.  The behavior of accessing a handle
+ * for which the handle scope has been deleted is undefined.
+ */
+class V8EXPORT HandleScope {
+ public:
+  HandleScope();
+
+  ~HandleScope();
+
+  /**
+   * Closes the handle scope and returns the value as a handle in the
+   * previous scope, which is the new current scope after the call.
+   */
+  template <class T> Local<T> Close(Handle<T> value);
+
+  /**
+   * Counts the number of allocated handles.
+   */
+  static int NumberOfHandles();
+
+  /**
+   * Creates a new handle with the given value.
+   */
+  static internal::Object** CreateHandle(internal::Object* value);
+
+ private:
+  // Make it impossible to create heap-allocated or illegal handle
+  // scopes by disallowing certain operations.
+  HandleScope(const HandleScope&);
+  void operator=(const HandleScope&);
+  void* operator new(size_t size);
+  void operator delete(void*, size_t);
+
+  // This Data class is accessible internally through a typedef in the
+  // ImplementationUtilities class.
+  class V8EXPORT Data {
+   public:
+    int extensions;
+    internal::Object** next;
+    internal::Object** limit;
+    inline void Initialize() {
+      extensions = -1;
+      next = limit = NULL;
+    }
+  };
+
+  Data previous_;
+
+  // Allow for the active closing of HandleScopes which allows to pass a handle
+  // from the HandleScope being closed to the next top most HandleScope.
+  bool is_closed_;
+  internal::Object** RawClose(internal::Object** value);
+
+  friend class ImplementationUtilities;
+};
+
+
+// --- S p e c i a l   o b j e c t s ---
+
+
+/**
+ * The superclass of values and API object templates.
+ */
+class V8EXPORT Data {
+ private:
+  Data();
+};
+
+
+/**
+ * Pre-compilation data that can be associated with a script.  This
+ * data can be calculated for a script in advance of actually
+ * compiling it, and can be stored between compilations.  When script
+ * data is given to the compile method compilation will be faster.
+ */
+class V8EXPORT ScriptData {  // NOLINT
+ public:
+  virtual ~ScriptData() { }
+  static ScriptData* PreCompile(const char* input, int length);
+  static ScriptData* New(unsigned* data, int length);
+
+  virtual int Length() = 0;
+  virtual unsigned* Data() = 0;
+};
+
+
+/**
+ * The origin, within a file, of a script.
+ */
+class V8EXPORT ScriptOrigin {
+ public:
+  ScriptOrigin(Handle<Value> resource_name,
+               Handle<Integer> resource_line_offset = Handle<Integer>(),
+               Handle<Integer> resource_column_offset = Handle<Integer>())
+      : resource_name_(resource_name),
+        resource_line_offset_(resource_line_offset),
+        resource_column_offset_(resource_column_offset) { }
+  inline Handle<Value> ResourceName() const;
+  inline Handle<Integer> ResourceLineOffset() const;
+  inline Handle<Integer> ResourceColumnOffset() const;
+ private:
+  Handle<Value> resource_name_;
+  Handle<Integer> resource_line_offset_;
+  Handle<Integer> resource_column_offset_;
+};
+
+
+/**
+ * A compiled JavaScript script.
+ */
+class V8EXPORT Script {
+ public:
+
+   /**
+    * Compiles the specified script. The ScriptOrigin* and ScriptData*
+    * parameters are owned by the caller of Script::Compile. No
+    * references to these objects are kept after compilation finishes.
+    *
+    * The script object returned is context independent; when run it
+    * will use the currently entered context.
+    */
+   static Local<Script> New(Handle<String> source,
+                            ScriptOrigin* origin = NULL,
+                            ScriptData* pre_data = NULL);
+
+   /**
+    * Compiles the specified script using the specified file name
+    * object (typically a string) as the script's origin.
+    *
+    * The script object returned is context independent; when run it
+    * will use the currently entered context.
+    */
+   static Local<Script> New(Handle<String> source,
+                            Handle<Value> file_name);
+
+  /**
+   * Compiles the specified script. The ScriptOrigin* and ScriptData*
+   * parameters are owned by the caller of Script::Compile. No
+   * references to these objects are kept after compilation finishes.
+   *
+   * The script object returned is bound to the context that was active
+   * when this function was called.  When run it will always use this
+   * context.
+   */
+  static Local<Script> Compile(Handle<String> source,
+                               ScriptOrigin* origin = NULL,
+                               ScriptData* pre_data = NULL);
+
+  /**
+   * Compiles the specified script using the specified file name
+   * object (typically a string) as the script's origin.
+   *
+   * The script object returned is bound to the context that was active
+   * when this function was called.  When run it will always use this
+   * context.
+   */
+  static Local<Script> Compile(Handle<String> source,
+                               Handle<Value> file_name);
+
+  /**
+   * Runs the script returning the resulting value.  If the script is
+   * context independent (created using ::New) it will be run in the
+   * currently entered context.  If it is context specific (created
+   * using ::Compile) it will be run in the context in which it was
+   * compiled.
+   */
+  Local<Value> Run();
+
+  /**
+   * Returns the script id value.
+   */
+  Local<Value> Id();
+
+  /**
+   * Associate an additional data object with the script. This is mainly used
+   * with the debugger as this data object is only available through the
+   * debugger API.
+   */
+  void SetData(Handle<Value> data);
+};
+
+
+/**
+ * An error message.
+ */
+class V8EXPORT Message {
+ public:
+  Local<String> Get() const;
+  Local<String> GetSourceLine() const;
+
+  /**
+   * Returns the resource name for the script from where the function causing
+   * the error originates.
+   */
+  Handle<Value> GetScriptResourceName() const;
+
+  /**
+   * Returns the resource data for the script from where the function causing
+   * the error originates.
+   */
+  Handle<Value> GetScriptData() const;
+
+  /**
+   * Returns the number, 1-based, of the line where the error occurred.
+   */
+  int GetLineNumber() const;
+
+  /**
+   * Returns the index within the script of the first character where
+   * the error occurred.
+   */
+  int GetStartPosition() const;
+
+  /**
+   * Returns the index within the script of the last character where
+   * the error occurred.
+   */
+  int GetEndPosition() const;
+
+  /**
+   * Returns the index within the line of the first character where
+   * the error occurred.
+   */
+  int GetStartColumn() const;
+
+  /**
+   * Returns the index within the line of the last character where
+   * the error occurred.
+   */
+  int GetEndColumn() const;
+
+  // TODO(1245381): Print to a string instead of on a FILE.
+  static void PrintCurrentStackTrace(FILE* out);
+};
+
+
+// --- V a l u e ---
+
+
+/**
+ * The superclass of all JavaScript values and objects.
+ */
+class V8EXPORT Value : public Data {
+ public:
+
+  /**
+   * Returns true if this value is the undefined value.  See ECMA-262
+   * 4.3.10.
+   */
+  bool IsUndefined() const;
+
+  /**
+   * Returns true if this value is the null value.  See ECMA-262
+   * 4.3.11.
+   */
+  bool IsNull() const;
+
+   /**
+   * Returns true if this value is true.
+   */
+  bool IsTrue() const;
+
+  /**
+   * Returns true if this value is false.
+   */
+  bool IsFalse() const;
+
+  /**
+   * Returns true if this value is an instance of the String type.
+   * See ECMA-262 8.4.
+   */
+  inline bool IsString() const;
+
+  /**
+   * Returns true if this value is a function.
+   */
+  bool IsFunction() const;
+
+  /**
+   * Returns true if this value is an array.
+   */
+  bool IsArray() const;
+
+  /**
+   * Returns true if this value is an object.
+   */
+  bool IsObject() const;
+
+  /**
+   * Returns true if this value is boolean.
+   */
+  bool IsBoolean() const;
+
+  /**
+   * Returns true if this value is a number.
+   */
+  bool IsNumber() const;
+
+  /**
+   * Returns true if this value is external.
+   */
+  bool IsExternal() const;
+
+  /**
+   * Returns true if this value is a 32-bit signed integer.
+   */
+  bool IsInt32() const;
+
+  /**
+   * Returns true if this value is a Date.
+   */
+  bool IsDate() const;
+
+  Local<Boolean> ToBoolean() const;
+  Local<Number> ToNumber() const;
+  Local<String> ToString() const;
+  Local<String> ToDetailString() const;
+  Local<Object> ToObject() const;
+  Local<Integer> ToInteger() const;
+  Local<Uint32> ToUint32() const;
+  Local<Int32> ToInt32() const;
+
+  /**
+   * Attempts to convert a string to an array index.
+   * Returns an empty handle if the conversion fails.
+   */
+  Local<Uint32> ToArrayIndex() const;
+
+  bool BooleanValue() const;
+  double NumberValue() const;
+  int64_t IntegerValue() const;
+  uint32_t Uint32Value() const;
+  int32_t Int32Value() const;
+
+  /** JS == */
+  bool Equals(Handle<Value> that) const;
+  bool StrictEquals(Handle<Value> that) const;
+  
+ private:
+  inline bool QuickIsString() const;
+  bool FullIsString() const;
+};
+
+
+/**
+ * The superclass of primitive values.  See ECMA-262 4.3.2.
+ */
+class V8EXPORT Primitive : public Value { };
+
+
+/**
+ * A primitive boolean value (ECMA-262, 4.3.14).  Either the true
+ * or false value.
+ */
+class V8EXPORT Boolean : public Primitive {
+ public:
+  bool Value() const;
+  static inline Handle<Boolean> New(bool value);
+};
+
+
+/**
+ * A JavaScript string value (ECMA-262, 4.3.17).
+ */
+class V8EXPORT String : public Primitive {
+ public:
+
+  /**
+   * Returns the number of characters in this string.
+   */
+  int Length() const;
+
+  /**
+   * Returns the number of bytes in the UTF-8 encoded
+   * representation of this string.
+   */
+  int Utf8Length() const;
+
+  /**
+   * Write the contents of the string to an external buffer.
+   * If no arguments are given, expects the buffer to be large
+   * enough to hold the entire string and NULL terminator. Copies
+   * the contents of the string and the NULL terminator into the
+   * buffer.
+   *
+   * Copies up to length characters into the output buffer.
+   * Only null-terminates if there is enough space in the buffer.
+   *
+   * \param buffer The buffer into which the string will be copied.
+   * \param start The starting position within the string at which
+   * copying begins.
+   * \param length The number of bytes to copy from the string.
+   * \return The number of characters copied to the buffer
+   * excluding the NULL terminator.
+   */
+  int Write(uint16_t* buffer, int start = 0, int length = -1) const;  // UTF-16
+  int WriteAscii(char* buffer, int start = 0, int length = -1) const;  // ASCII
+  int WriteUtf8(char* buffer, int length = -1) const; // UTF-8
+
+  /**
+   * A zero length string.
+   */
+  static v8::Local<v8::String> Empty();
+
+  /**
+   * Returns true if the string is external
+   */
+  bool IsExternal() const;
+
+  /**
+   * Returns true if the string is both external and ascii
+   */
+  bool IsExternalAscii() const;
+  /**
+   * An ExternalStringResource is a wrapper around a two-byte string
+   * buffer that resides outside V8's heap. Implement an
+   * ExternalStringResource to manage the life cycle of the underlying
+   * buffer.  Note that the string data must be immutable.
+   */
+  class V8EXPORT ExternalStringResource {  // NOLINT
+   public:
+    /**
+     * Override the destructor to manage the life cycle of the underlying
+     * buffer.
+     */
+    virtual ~ExternalStringResource() {}
+    /** The string data from the underlying buffer.*/
+    virtual const uint16_t* data() const = 0;
+    /** The length of the string. That is, the number of two-byte characters.*/
+    virtual size_t length() const = 0;
+   protected:
+    ExternalStringResource() {}
+   private:
+    // Disallow copying and assigning.
+    ExternalStringResource(const ExternalStringResource&);
+    void operator=(const ExternalStringResource&);
+  };
+
+  /**
+   * An ExternalAsciiStringResource is a wrapper around an ascii
+   * string buffer that resides outside V8's heap. Implement an
+   * ExternalAsciiStringResource to manage the life cycle of the
+   * underlying buffer.  Note that the string data must be immutable
+   * and that the data must be strict 7-bit ASCII, not Latin1 or
+   * UTF-8, which would require special treatment internally in the
+   * engine and, in the case of UTF-8, do not allow efficient indexing.
+   * Use String::New or convert to 16 bit data for non-ASCII.
+   */
+
+  class V8EXPORT ExternalAsciiStringResource {  // NOLINT
+   public:
+    /**
+     * Override the destructor to manage the life cycle of the underlying
+     * buffer.
+     */
+    virtual ~ExternalAsciiStringResource() {}
+    /** The string data from the underlying buffer.*/
+    virtual const char* data() const = 0;
+    /** The number of ascii characters in the string.*/
+    virtual size_t length() const = 0;
+   protected:
+    ExternalAsciiStringResource() {}
+   private:
+    // Disallow copying and assigning.
+    ExternalAsciiStringResource(const ExternalAsciiStringResource&);
+    void operator=(const ExternalAsciiStringResource&);
+  };
+
+  /**
+   * Get the ExternalStringResource for an external string.  Returns
+   * NULL if IsExternal() doesn't return true.
+   */
+  inline ExternalStringResource* GetExternalStringResource() const;
+
+  /**
+   * Get the ExternalAsciiStringResource for an external ascii string.
+   * Returns NULL if IsExternalAscii() doesn't return true.
+   */
+  ExternalAsciiStringResource* GetExternalAsciiStringResource() const;
+
+  static inline String* Cast(v8::Value* obj);
+
+  /**
+   * Allocates a new string from either utf-8 encoded or ascii data.
+   * The second parameter 'length' gives the buffer length.
+   * If the data is utf-8 encoded, the caller must
+   * be careful to supply the length parameter.
+   * If it is not given, the function calls
+   * 'strlen' to determine the buffer length, it might be
+   * wrong if 'data' contains a null character.
+   */
+  static Local<String> New(const char* data, int length = -1);
+
+  /** Allocates a new string from utf16 data.*/
+  static Local<String> New(const uint16_t* data, int length = -1);
+
+  /** Creates a symbol. Returns one if it exists already.*/
+  static Local<String> NewSymbol(const char* data, int length = -1);
+
+  /**
+   * Creates a new external string using the data defined in the given
+   * resource. The resource is deleted when the external string is no
+   * longer live on V8's heap. The caller of this function should not
+   * delete or modify the resource. Neither should the underlying buffer be
+   * deallocated or modified except through the destructor of the
+   * external string resource.
+   */
+  static Local<String> NewExternal(ExternalStringResource* resource);
+
+  /**
+   * Associate an external string resource with this string by transforming it
+   * in place so that existing references to this string in the JavaScript heap
+   * will use the external string resource. The external string resource's
+   * character contents needs to be equivalent to this string.
+   * Returns true if the string has been changed to be an external string.
+   * The string is not modified if the operation fails.
+   */
+  bool MakeExternal(ExternalStringResource* resource);
+
+  /**
+   * Creates a new external string using the ascii data defined in the given
+   * resource. The resource is deleted when the external string is no
+   * longer live on V8's heap. The caller of this function should not
+   * delete or modify the resource. Neither should the underlying buffer be
+   * deallocated or modified except through the destructor of the
+   * external string resource.
+   */
+  static Local<String> NewExternal(ExternalAsciiStringResource* resource);
+
+  /**
+   * Associate an external string resource with this string by transforming it
+   * in place so that existing references to this string in the JavaScript heap
+   * will use the external string resource. The external string resource's
+   * character contents needs to be equivalent to this string.
+   * Returns true if the string has been changed to be an external string.
+   * The string is not modified if the operation fails.
+   */
+  bool MakeExternal(ExternalAsciiStringResource* resource);
+
+  /**
+   * Returns true if this string can be made external.
+   */
+  bool CanMakeExternal();
+
+  /** Creates an undetectable string from the supplied ascii or utf-8 data.*/
+  static Local<String> NewUndetectable(const char* data, int length = -1);
+
+  /** Creates an undetectable string from the supplied utf-16 data.*/
+  static Local<String> NewUndetectable(const uint16_t* data, int length = -1);
+
+  /**
+   * Converts an object to a utf8-encoded character array.  Useful if
+   * you want to print the object.  If conversion to a string fails
+   * (eg. due to an exception in the toString() method of the object)
+   * then the length() method returns 0 and the * operator returns
+   * NULL.
+   */
+  class V8EXPORT Utf8Value {
+   public:
+    explicit Utf8Value(Handle<v8::Value> obj);
+    ~Utf8Value();
+    char* operator*() { return str_; }
+    const char* operator*() const { return str_; }
+    int length() const { return length_; }
+   private:
+    char* str_;
+    int length_;
+
+    // Disallow copying and assigning.
+    Utf8Value(const Utf8Value&);
+    void operator=(const Utf8Value&);
+  };
+
+  /**
+   * Converts an object to an ascii string.
+   * Useful if you want to print the object.
+   * If conversion to a string fails (eg. due to an exception in the toString()
+   * method of the object) then the length() method returns 0 and the * operator
+   * returns NULL.
+   */
+  class V8EXPORT AsciiValue {
+   public:
+    explicit AsciiValue(Handle<v8::Value> obj);
+    ~AsciiValue();
+    char* operator*() { return str_; }
+    const char* operator*() const { return str_; }
+    int length() const { return length_; }
+   private:
+    char* str_;
+    int length_;
+
+    // Disallow copying and assigning.
+    AsciiValue(const AsciiValue&);
+    void operator=(const AsciiValue&);
+  };
+
+  /**
+   * Converts an object to a two-byte string.
+   * If conversion to a string fails (eg. due to an exception in the toString()
+   * method of the object) then the length() method returns 0 and the * operator
+   * returns NULL.
+   */
+  class V8EXPORT Value {
+   public:
+    explicit Value(Handle<v8::Value> obj);
+    ~Value();
+    uint16_t* operator*() { return str_; }
+    const uint16_t* operator*() const { return str_; }
+    int length() const { return length_; }
+   private:
+    uint16_t* str_;
+    int length_;
+
+    // Disallow copying and assigning.
+    Value(const Value&);
+    void operator=(const Value&);
+  };
+  
+ private:
+  void VerifyExternalStringResource(ExternalStringResource* val) const;
+  static void CheckCast(v8::Value* obj);
+};
+
+
+/**
+ * A JavaScript number value (ECMA-262, 4.3.20)
+ */
+class V8EXPORT Number : public Primitive {
+ public:
+  double Value() const;
+  static Local<Number> New(double value);
+  static inline Number* Cast(v8::Value* obj);
+ private:
+  Number();
+  static void CheckCast(v8::Value* obj);
+};
+
+
+/**
+ * A JavaScript value representing a signed integer.
+ */
+class V8EXPORT Integer : public Number {
+ public:
+  static Local<Integer> New(int32_t value);
+  int64_t Value() const;
+  static inline Integer* Cast(v8::Value* obj);
+ private:
+  Integer();
+  static void CheckCast(v8::Value* obj);
+};
+
+
+/**
+ * A JavaScript value representing a 32-bit signed integer.
+ */
+class V8EXPORT Int32 : public Integer {
+ public:
+  int32_t Value() const;
+ private:
+  Int32();
+};
+
+
+/**
+ * A JavaScript value representing a 32-bit unsigned integer.
+ */
+class V8EXPORT Uint32 : public Integer {
+ public:
+  uint32_t Value() const;
+ private:
+  Uint32();
+};
+
+
+/**
+ * An instance of the built-in Date constructor (ECMA-262, 15.9).
+ */
+class V8EXPORT Date : public Value {
+ public:
+  static Local<Value> New(double time);
+
+  /**
+   * A specialization of Value::NumberValue that is more efficient
+   * because we know the structure of this object.
+   */
+  double NumberValue() const;
+
+  static inline Date* Cast(v8::Value* obj);
+ private:
+  static void CheckCast(v8::Value* obj);
+};
+
+
+enum PropertyAttribute {
+  None       = 0,
+  ReadOnly   = 1 << 0,
+  DontEnum   = 1 << 1,
+  DontDelete = 1 << 2
+};
+
+/**
+ * A JavaScript object (ECMA-262, 4.3.3)
+ */
+class V8EXPORT Object : public Value {
+ public:
+  bool Set(Handle<Value> key,
+           Handle<Value> value,
+           PropertyAttribute attribs = None);
+
+  // Sets a local property on this object bypassing interceptors and
+  // overriding accessors or read-only properties.
+  //
+  // Note that if the object has an interceptor the property will be set
+  // locally, but since the interceptor takes precedence the local property
+  // will only be returned if the interceptor doesn't return a value.
+  //
+  // Note also that this only works for named properties.
+  bool ForceSet(Handle<Value> key,
+                Handle<Value> value,
+                PropertyAttribute attribs = None);
+
+  Local<Value> Get(Handle<Value> key);
+
+  // TODO(1245389): Replace the type-specific versions of these
+  // functions with generic ones that accept a Handle<Value> key.
+  bool Has(Handle<String> key);
+
+  bool Delete(Handle<String> key);
+
+  // Delete a property on this object bypassing interceptors and
+  // ignoring dont-delete attributes.
+  bool ForceDelete(Handle<Value> key);
+
+  bool Has(uint32_t index);
+
+  bool Delete(uint32_t index);
+
+  /**
+   * Returns an array containing the names of the enumerable properties
+   * of this object, including properties from prototype objects.  The
+   * array returned by this method contains the same values as would
+   * be enumerated by a for-in statement over this object.
+   */
+  Local<Array> GetPropertyNames();
+
+  /**
+   * Get the prototype object.  This does not skip objects marked to
+   * be skipped by __proto__ and it does not consult the security
+   * handler.
+   */
+  Local<Value> GetPrototype();
+
+  /**
+   * Finds an instance of the given function template in the prototype
+   * chain.
+   */
+  Local<Object> FindInstanceInPrototypeChain(Handle<FunctionTemplate> tmpl);
+
+  /**
+   * Call builtin Object.prototype.toString on this object.
+   * This is different from Value::ToString() that may call
+   * user-defined toString function. This one does not.
+   */
+  Local<String> ObjectProtoToString();
+
+  /** Gets the number of internal fields for this Object. */
+  int InternalFieldCount();
+  /** Gets the value in an internal field. */
+  inline Local<Value> GetInternalField(int index);
+  /** Sets the value in an internal field. */
+  void SetInternalField(int index, Handle<Value> value);
+
+  /** Gets a native pointer from an internal field. */
+  inline void* GetPointerFromInternalField(int index);
+  
+  /** Sets a native pointer in an internal field. */
+  void SetPointerInInternalField(int index, void* value);
+
+  // Testers for local properties.
+  bool HasRealNamedProperty(Handle<String> key);
+  bool HasRealIndexedProperty(uint32_t index);
+  bool HasRealNamedCallbackProperty(Handle<String> key);
+
+  /**
+   * If result.IsEmpty() no real property was located in the prototype chain.
+   * This means interceptors in the prototype chain are not called.
+   */
+  Local<Value> GetRealNamedPropertyInPrototypeChain(Handle<String> key);
+
+  /**
+   * If result.IsEmpty() no real property was located on the object or
+   * in the prototype chain.
+   * This means interceptors in the prototype chain are not called.
+   */
+  Local<Value> GetRealNamedProperty(Handle<String> key);
+
+  /** Tests for a named lookup interceptor.*/
+  bool HasNamedLookupInterceptor();
+
+  /** Tests for an index lookup interceptor.*/
+  bool HasIndexedLookupInterceptor();
+
+  /**
+   * Turns on access check on the object if the object is an instance of
+   * a template that has access check callbacks. If an object has no
+   * access check info, the object cannot be accessed by anyone.
+   */
+  void TurnOnAccessCheck();
+
+  /**
+   * Returns the identity hash for this object. The current implemenation uses
+   * a hidden property on the object to store the identity hash.
+   *
+   * The return value will never be 0. Also, it is not guaranteed to be
+   * unique.
+   */
+  int GetIdentityHash();
+
+  /**
+   * Access hidden properties on JavaScript objects. These properties are
+   * hidden from the executing JavaScript and only accessible through the V8
+   * C++ API. Hidden properties introduced by V8 internally (for example the
+   * identity hash) are prefixed with "v8::".
+   */
+  bool SetHiddenValue(Handle<String> key, Handle<Value> value);
+  Local<Value> GetHiddenValue(Handle<String> key);
+  bool DeleteHiddenValue(Handle<String> key);
+  
+  /**
+   * Returns true if this is an instance of an api function (one
+   * created from a function created from a function template) and has
+   * been modified since it was created.  Note that this method is
+   * conservative and may return true for objects that haven't actually
+   * been modified.
+   */
+  bool IsDirty();
+
+  /**
+   * Clone this object with a fast but shallow copy.  Values will point
+   * to the same values as the original object.
+   */
+  Local<Object> Clone();
+
+  /**
+   * Set the backing store of the indexed properties to be managed by the
+   * embedding layer. Access to the indexed properties will follow the rules
+   * spelled out in CanvasPixelArray.
+   * Note: The embedding program still owns the data and needs to ensure that
+   *       the backing store is preserved while V8 has a reference.
+   */
+  void SetIndexedPropertiesToPixelData(uint8_t* data, int length);
+
+  static Local<Object> New();
+  static inline Object* Cast(Value* obj);
+ private:
+  Object();
+  static void CheckCast(Value* obj);
+  Local<Value> CheckedGetInternalField(int index);
+
+  /**
+   * If quick access to the internal field is possible this method
+   * returns the value.  Otherwise an empty handle is returned. 
+   */
+  inline Local<Value> UncheckedGetInternalField(int index);
+};
+
+
+/**
+ * An instance of the built-in array constructor (ECMA-262, 15.4.2).
+ */
+class V8EXPORT Array : public Object {
+ public:
+  uint32_t Length() const;
+
+  /**
+   * Clones an element at index |index|.  Returns an empty
+   * handle if cloning fails (for any reason).
+   */
+  Local<Object> CloneElementAt(uint32_t index);
+
+  static Local<Array> New(int length = 0);
+  static inline Array* Cast(Value* obj);
+ private:
+  Array();
+  static void CheckCast(Value* obj);
+};
+
+
+/**
+ * A JavaScript function object (ECMA-262, 15.3).
+ */
+class V8EXPORT Function : public Object {
+ public:
+  Local<Object> NewInstance() const;
+  Local<Object> NewInstance(int argc, Handle<Value> argv[]) const;
+  Local<Value> Call(Handle<Object> recv, int argc, Handle<Value> argv[]);
+  void SetName(Handle<String> name);
+  Handle<Value> GetName() const;
+  static inline Function* Cast(Value* obj);
+ private:
+  Function();
+  static void CheckCast(Value* obj);
+};
+
+
+/**
+ * A JavaScript value that wraps a C++ void*.  This type of value is
+ * mainly used to associate C++ data structures with JavaScript
+ * objects.
+ *
+ * The Wrap function V8 will return the most optimal Value object wrapping the
+ * C++ void*. The type of the value is not guaranteed to be an External object
+ * and no assumptions about its type should be made. To access the wrapped
+ * value Unwrap should be used, all other operations on that object will lead
+ * to unpredictable results.
+ */
+class V8EXPORT External : public Value {
+ public:
+  static Local<Value> Wrap(void* data);
+  static inline void* Unwrap(Handle<Value> obj);
+
+  static Local<External> New(void* value);
+  static inline External* Cast(Value* obj);
+  void* Value() const;
+ private:
+  External();
+  static void CheckCast(v8::Value* obj);
+  static inline void* QuickUnwrap(Handle<v8::Value> obj);
+  static void* FullUnwrap(Handle<v8::Value> obj);
+};
+
+
+// --- T e m p l a t e s ---
+
+
+/**
+ * The superclass of object and function templates.
+ */
+class V8EXPORT Template : public Data {
+ public:
+  /** Adds a property to each instance created by this template.*/
+  void Set(Handle<String> name, Handle<Data> value,
+           PropertyAttribute attributes = None);
+  inline void Set(const char* name, Handle<Data> value);
+ private:
+  Template();
+
+  friend class ObjectTemplate;
+  friend class FunctionTemplate;
+};
+
+
+/**
+ * The argument information given to function call callbacks.  This
+ * class provides access to information about the context of the call,
+ * including the receiver, the number and values of arguments, and
+ * the holder of the function.
+ */
+class V8EXPORT Arguments {
+ public:
+  inline int Length() const;
+  inline Local<Value> operator[](int i) const;
+  inline Local<Function> Callee() const;
+  inline Local<Object> This() const;
+  inline Local<Object> Holder() const;
+  inline bool IsConstructCall() const;
+  inline Local<Value> Data() const;
+ private:
+  Arguments();
+  friend class ImplementationUtilities;
+  inline Arguments(Local<Value> data,
+                   Local<Object> holder,
+                   Local<Function> callee,
+                   bool is_construct_call,
+                   void** values, int length);
+  Local<Value> data_;
+  Local<Object> holder_;
+  Local<Function> callee_;
+  bool is_construct_call_;
+  void** values_;
+  int length_;
+};
+
+
+/**
+ * The information passed to an accessor callback about the context
+ * of the property access.
+ */
+class V8EXPORT AccessorInfo {
+ public:
+  inline AccessorInfo(internal::Object** args)
+      : args_(args) { }
+  inline Local<Value> Data() const;
+  inline Local<Object> This() const;
+  inline Local<Object> Holder() const;
+ private:
+  internal::Object** args_;
+};
+
+
+typedef Handle<Value> (*InvocationCallback)(const Arguments& args);
+
+typedef int (*LookupCallback)(Local<Object> self, Local<String> name);
+
+/**
+ * Accessor[Getter|Setter] are used as callback functions when
+ * setting|getting a particular property. See objectTemplate::SetAccessor.
+ */
+typedef Handle<Value> (*AccessorGetter)(Local<String> property,
+                                        const AccessorInfo& info);
+
+
+typedef void (*AccessorSetter)(Local<String> property,
+                               Local<Value> value,
+                               const AccessorInfo& info);
+
+
+/**
+ * NamedProperty[Getter|Setter] are used as interceptors on object.
+ * See ObjectTemplate::SetNamedPropertyHandler.
+ */
+typedef Handle<Value> (*NamedPropertyGetter)(Local<String> property,
+                                             const AccessorInfo& info);
+
+
+/**
+ * Returns the value if the setter intercepts the request.
+ * Otherwise, returns an empty handle.
+ */
+typedef Handle<Value> (*NamedPropertySetter)(Local<String> property,
+                                             Local<Value> value,
+                                             const AccessorInfo& info);
+
+
+/**
+ * Returns a non-empty handle if the interceptor intercepts the request.
+ * The result is true if the property exists and false otherwise.
+ */
+typedef Handle<Boolean> (*NamedPropertyQuery)(Local<String> property,
+                                              const AccessorInfo& info);
+
+
+/**
+ * Returns a non-empty handle if the deleter intercepts the request.
+ * The return value is true if the property could be deleted and false
+ * otherwise.
+ */
+typedef Handle<Boolean> (*NamedPropertyDeleter)(Local<String> property,
+                                                const AccessorInfo& info);
+
+/**
+ * Returns an array containing the names of the properties the named
+ * property getter intercepts.
+ */
+typedef Handle<Array> (*NamedPropertyEnumerator)(const AccessorInfo& info);
+
+
+/**
+ * Returns the value of the property if the getter intercepts the
+ * request.  Otherwise, returns an empty handle.
+ */
+typedef Handle<Value> (*IndexedPropertyGetter)(uint32_t index,
+                                               const AccessorInfo& info);
+
+
+/**
+ * Returns the value if the setter intercepts the request.
+ * Otherwise, returns an empty handle.
+ */
+typedef Handle<Value> (*IndexedPropertySetter)(uint32_t index,
+                                               Local<Value> value,
+                                               const AccessorInfo& info);
+
+
+/**
+ * Returns a non-empty handle if the interceptor intercepts the request.
+ * The result is true if the property exists and false otherwise.
+ */
+typedef Handle<Boolean> (*IndexedPropertyQuery)(uint32_t index,
+                                                const AccessorInfo& info);
+
+/**
+ * Returns a non-empty handle if the deleter intercepts the request.
+ * The return value is true if the property could be deleted and false
+ * otherwise.
+ */
+typedef Handle<Boolean> (*IndexedPropertyDeleter)(uint32_t index,
+                                                  const AccessorInfo& info);
+
+/**
+ * Returns an array containing the indices of the properties the
+ * indexed property getter intercepts.
+ */
+typedef Handle<Array> (*IndexedPropertyEnumerator)(const AccessorInfo& info);
+
+
+/**
+ * Access control specifications.
+ *
+ * Some accessors should be accessible across contexts.  These
+ * accessors have an explicit access control parameter which specifies
+ * the kind of cross-context access that should be allowed.
+ *
+ * Additionally, for security, accessors can prohibit overwriting by
+ * accessors defined in JavaScript.  For objects that have such
+ * accessors either locally or in their prototype chain it is not
+ * possible to overwrite the accessor by using __defineGetter__ or
+ * __defineSetter__ from JavaScript code.
+ */
+enum AccessControl {
+  DEFAULT               = 0,
+  ALL_CAN_READ          = 1,
+  ALL_CAN_WRITE         = 1 << 1,
+  PROHIBITS_OVERWRITING = 1 << 2
+};
+
+
+/**
+ * Access type specification.
+ */
+enum AccessType {
+  ACCESS_GET,
+  ACCESS_SET,
+  ACCESS_HAS,
+  ACCESS_DELETE,
+  ACCESS_KEYS
+};
+
+
+/**
+ * Returns true if cross-context access should be allowed to the named
+ * property with the given key on the host object.
+ */
+typedef bool (*NamedSecurityCallback)(Local<Object> host,
+                                      Local<Value> key,
+                                      AccessType type,
+                                      Local<Value> data);
+
+
+/**
+ * Returns true if cross-context access should be allowed to the indexed
+ * property with the given index on the host object.
+ */
+typedef bool (*IndexedSecurityCallback)(Local<Object> host,
+                                        uint32_t index,
+                                        AccessType type,
+                                        Local<Value> data);
+
+
+/**
+ * A FunctionTemplate is used to create functions at runtime. There
+ * can only be one function created from a FunctionTemplate in a
+ * context.  The lifetime of the created function is equal to the
+ * lifetime of the context.  So in case the embedder needs to create
+ * temporary functions that can be collected using Scripts is
+ * preferred.
+ *
+ * A FunctionTemplate can have properties, these properties are added to the
+ * function object when it is created.
+ *
+ * A FunctionTemplate has a corresponding instance template which is
+ * used to create object instances when the function is used as a
+ * constructor. Properties added to the instance template are added to
+ * each object instance.
+ *
+ * A FunctionTemplate can have a prototype template. The prototype template
+ * is used to create the prototype object of the function.
+ *
+ * The following example shows how to use a FunctionTemplate:
+ *
+ * \code
+ *    v8::Local<v8::FunctionTemplate> t = v8::FunctionTemplate::New();
+ *    t->Set("func_property", v8::Number::New(1));
+ *
+ *    v8::Local<v8::Template> proto_t = t->PrototypeTemplate();
+ *    proto_t->Set("proto_method", v8::FunctionTemplate::New(InvokeCallback));
+ *    proto_t->Set("proto_const", v8::Number::New(2));
+ *
+ *    v8::Local<v8::ObjectTemplate> instance_t = t->InstanceTemplate();
+ *    instance_t->SetAccessor("instance_accessor", InstanceAccessorCallback);
+ *    instance_t->SetNamedPropertyHandler(PropertyHandlerCallback, ...);
+ *    instance_t->Set("instance_property", Number::New(3));
+ *
+ *    v8::Local<v8::Function> function = t->GetFunction();
+ *    v8::Local<v8::Object> instance = function->NewInstance();
+ * \endcode
+ *
+ * Let's use "function" as the JS variable name of the function object
+ * and "instance" for the instance object created above.  The function
+ * and the instance will have the following properties:
+ *
+ * \code
+ *   func_property in function == true;
+ *   function.func_property == 1;
+ *
+ *   function.prototype.proto_method() invokes 'InvokeCallback'
+ *   function.prototype.proto_const == 2;
+ *
+ *   instance instanceof function == true;
+ *   instance.instance_accessor calls 'InstanceAccessorCallback'
+ *   instance.instance_property == 3;
+ * \endcode
+ *
+ * A FunctionTemplate can inherit from another one by calling the
+ * FunctionTemplate::Inherit method.  The following graph illustrates
+ * the semantics of inheritance:
+ *
+ * \code
+ *   FunctionTemplate Parent  -> Parent() . prototype -> { }
+ *     ^                                                  ^
+ *     | Inherit(Parent)                                  | .__proto__
+ *     |                                                  |
+ *   FunctionTemplate Child   -> Child()  . prototype -> { }
+ * \endcode
+ *
+ * A FunctionTemplate 'Child' inherits from 'Parent', the prototype
+ * object of the Child() function has __proto__ pointing to the
+ * Parent() function's prototype object. An instance of the Child
+ * function has all properties on Parent's instance templates.
+ *
+ * Let Parent be the FunctionTemplate initialized in the previous
+ * section and create a Child FunctionTemplate by:
+ *
+ * \code
+ *   Local<FunctionTemplate> parent = t;
+ *   Local<FunctionTemplate> child = FunctionTemplate::New();
+ *   child->Inherit(parent);
+ *
+ *   Local<Function> child_function = child->GetFunction();
+ *   Local<Object> child_instance = child_function->NewInstance();
+ * \endcode
+ *
+ * The Child function and Child instance will have the following
+ * properties:
+ *
+ * \code
+ *   child_func.prototype.__proto__ == function.prototype;
+ *   child_instance.instance_accessor calls 'InstanceAccessorCallback'
+ *   child_instance.instance_property == 3;
+ * \endcode
+ */
+class V8EXPORT FunctionTemplate : public Template {
+ public:
+  /** Creates a function template.*/
+  static Local<FunctionTemplate> New(
+      InvocationCallback callback = 0,
+      Handle<Value> data = Handle<Value>(),
+      Handle<Signature> signature = Handle<Signature>());
+  /** Returns the unique function instance in the current execution context.*/
+  Local<Function> GetFunction();
+
+  /**
+   * Set the call-handler callback for a FunctionTemplate.  This
+   * callback is called whenever the function created from this
+   * FunctionTemplate is called.
+   */
+  void SetCallHandler(InvocationCallback callback,
+                      Handle<Value> data = Handle<Value>());
+
+  /** Get the InstanceTemplate. */
+  Local<ObjectTemplate> InstanceTemplate();
+
+  /** Causes the function template to inherit from a parent function template.*/
+  void Inherit(Handle<FunctionTemplate> parent);
+
+  /**
+   * A PrototypeTemplate is the template used to create the prototype object
+   * of the function created by this template.
+   */
+  Local<ObjectTemplate> PrototypeTemplate();
+
+
+  /**
+   * Set the class name of the FunctionTemplate.  This is used for
+   * printing objects created with the function created from the
+   * FunctionTemplate as its constructor.
+   */
+  void SetClassName(Handle<String> name);
+
+  /**
+   * Determines whether the __proto__ accessor ignores instances of
+   * the function template.  If instances of the function template are
+   * ignored, __proto__ skips all instances and instead returns the
+   * next object in the prototype chain.
+   *
+   * Call with a value of true to make the __proto__ accessor ignore
+   * instances of the function template.  Call with a value of false
+   * to make the __proto__ accessor not ignore instances of the
+   * function template.  By default, instances of a function template
+   * are not ignored.
+   */
+  void SetHiddenPrototype(bool value);
+
+  /**
+   * Returns true if the given object is an instance of this function
+   * template.
+   */
+  bool HasInstance(Handle<Value> object);
+
+ private:
+  FunctionTemplate();
+  void AddInstancePropertyAccessor(Handle<String> name,
+                                   AccessorGetter getter,
+                                   AccessorSetter setter,
+                                   Handle<Value> data,
+                                   AccessControl settings,
+                                   PropertyAttribute attributes);
+  void SetNamedInstancePropertyHandler(NamedPropertyGetter getter,
+                                       NamedPropertySetter setter,
+                                       NamedPropertyQuery query,
+                                       NamedPropertyDeleter remover,
+                                       NamedPropertyEnumerator enumerator,
+                                       Handle<Value> data);
+  void SetIndexedInstancePropertyHandler(IndexedPropertyGetter getter,
+                                         IndexedPropertySetter setter,
+                                         IndexedPropertyQuery query,
+                                         IndexedPropertyDeleter remover,
+                                         IndexedPropertyEnumerator enumerator,
+                                         Handle<Value> data);
+  void SetInstanceCallAsFunctionHandler(InvocationCallback callback,
+                                        Handle<Value> data);
+
+  friend class Context;
+  friend class ObjectTemplate;
+};
+
+
+/**
+ * An ObjectTemplate is used to create objects at runtime.
+ *
+ * Properties added to an ObjectTemplate are added to each object
+ * created from the ObjectTemplate.
+ */
+class V8EXPORT ObjectTemplate : public Template {
+ public:
+  /** Creates an ObjectTemplate. */
+  static Local<ObjectTemplate> New();
+
+  /** Creates a new instance of this template.*/
+  Local<Object> NewInstance();
+
+  /**
+   * Sets an accessor on the object template.
+   *
+   * Whenever the property with the given name is accessed on objects
+   * created from this ObjectTemplate the getter and setter callbacks
+   * are called instead of getting and setting the property directly
+   * on the JavaScript object.
+   *
+   * \param name The name of the property for which an accessor is added.
+   * \param getter The callback to invoke when getting the property.
+   * \param setter The callback to invoke when setting the property.
+   * \param data A piece of data that will be passed to the getter and setter
+   *   callbacks whenever they are invoked.
+   * \param settings Access control settings for the accessor. This is a bit
+   *   field consisting of one of more of
+   *   DEFAULT = 0, ALL_CAN_READ = 1, or ALL_CAN_WRITE = 2.
+   *   The default is to not allow cross-context access.
+   *   ALL_CAN_READ means that all cross-context reads are allowed.
+   *   ALL_CAN_WRITE means that all cross-context writes are allowed.
+   *   The combination ALL_CAN_READ | ALL_CAN_WRITE can be used to allow all
+   *   cross-context access.
+   * \param attribute The attributes of the property for which an accessor
+   *   is added.
+   */
+  void SetAccessor(Handle<String> name,
+                   AccessorGetter getter,
+                   AccessorSetter setter = 0,
+                   Handle<Value> data = Handle<Value>(),
+                   AccessControl settings = DEFAULT,
+                   PropertyAttribute attribute = None);
+
+  /**
+   * Sets a named property handler on the object template.
+   *
+   * Whenever a named property is accessed on objects created from
+   * this object template, the provided callback is invoked instead of
+   * accessing the property directly on the JavaScript object.
+   *
+   * \param getter The callback to invoke when getting a property.
+   * \param setter The callback to invoke when setting a property.
+   * \param query The callback to invoke to check is an object has a property.
+   * \param deleter The callback to invoke when deleting a property.
+   * \param enumerator The callback to invoke to enumerate all the named
+   *   properties of an object.
+   * \param data A piece of data that will be passed to the callbacks
+   *   whenever they are invoked.
+   */
+  void SetNamedPropertyHandler(NamedPropertyGetter getter,
+                               NamedPropertySetter setter = 0,
+                               NamedPropertyQuery query = 0,
+                               NamedPropertyDeleter deleter = 0,
+                               NamedPropertyEnumerator enumerator = 0,
+                               Handle<Value> data = Handle<Value>());
+
+  /**
+   * Sets an indexed property handler on the object template.
+   *
+   * Whenever an indexed property is accessed on objects created from
+   * this object template, the provided callback is invoked instead of
+   * accessing the property directly on the JavaScript object.
+   *
+   * \param getter The callback to invoke when getting a property.
+   * \param setter The callback to invoke when setting a property.
+   * \param query The callback to invoke to check is an object has a property.
+   * \param deleter The callback to invoke when deleting a property.
+   * \param enumerator The callback to invoke to enumerate all the indexed
+   *   properties of an object.
+   * \param data A piece of data that will be passed to the callbacks
+   *   whenever they are invoked.
+   */
+  void SetIndexedPropertyHandler(IndexedPropertyGetter getter,
+                                 IndexedPropertySetter setter = 0,
+                                 IndexedPropertyQuery query = 0,
+                                 IndexedPropertyDeleter deleter = 0,
+                                 IndexedPropertyEnumerator enumerator = 0,
+                                 Handle<Value> data = Handle<Value>());
+  /**
+   * Sets the callback to be used when calling instances created from
+   * this template as a function.  If no callback is set, instances
+   * behave like normal JavaScript objects that cannot be called as a
+   * function.
+   */
+  void SetCallAsFunctionHandler(InvocationCallback callback,
+                                Handle<Value> data = Handle<Value>());
+
+  /**
+   * Mark object instances of the template as undetectable.
+   *
+   * In many ways, undetectable objects behave as though they are not
+   * there.  They behave like 'undefined' in conditionals and when
+   * printed.  However, properties can be accessed and called as on
+   * normal objects.
+   */
+  void MarkAsUndetectable();
+
+  /**
+   * Sets access check callbacks on the object template.
+   *
+   * When accessing properties on instances of this object template,
+   * the access check callback will be called to determine whether or
+   * not to allow cross-context access to the properties.
+   * The last parameter specifies whether access checks are turned
+   * on by default on instances. If access checks are off by default,
+   * they can be turned on on individual instances by calling
+   * Object::TurnOnAccessCheck().
+   */
+  void SetAccessCheckCallbacks(NamedSecurityCallback named_handler,
+                               IndexedSecurityCallback indexed_handler,
+                               Handle<Value> data = Handle<Value>(),
+                               bool turned_on_by_default = true);
+
+  /**
+   * Gets the number of internal fields for objects generated from
+   * this template.
+   */
+  int InternalFieldCount();
+
+  /**
+   * Sets the number of internal fields for objects generated from
+   * this template.
+   */
+  void SetInternalFieldCount(int value);
+
+ private:
+  ObjectTemplate();
+  static Local<ObjectTemplate> New(Handle<FunctionTemplate> constructor);
+  friend class FunctionTemplate;
+};
+
+
+/**
+ * A Signature specifies which receivers and arguments a function can
+ * legally be called with.
+ */
+class V8EXPORT Signature : public Data {
+ public:
+  static Local<Signature> New(Handle<FunctionTemplate> receiver =
+                                  Handle<FunctionTemplate>(),
+                              int argc = 0,
+                              Handle<FunctionTemplate> argv[] = 0);
+ private:
+  Signature();
+};
+
+
+/**
+ * A utility for determining the type of objects based on the template
+ * they were constructed from.
+ */
+class V8EXPORT TypeSwitch : public Data {
+ public:
+  static Local<TypeSwitch> New(Handle<FunctionTemplate> type);
+  static Local<TypeSwitch> New(int argc, Handle<FunctionTemplate> types[]);
+  int match(Handle<Value> value);
+ private:
+  TypeSwitch();
+};
+
+
+// --- E x t e n s i o n s ---
+
+
+/**
+ * Ignore
+ */
+class V8EXPORT Extension {  // NOLINT
+ public:
+  Extension(const char* name,
+            const char* source = 0,
+            int dep_count = 0,
+            const char** deps = 0);
+  virtual ~Extension() { }
+  virtual v8::Handle<v8::FunctionTemplate>
+      GetNativeFunction(v8::Handle<v8::String> name) {
+    return v8::Handle<v8::FunctionTemplate>();
+  }
+
+  const char* name() { return name_; }
+  const char* source() { return source_; }
+  int dependency_count() { return dep_count_; }
+  const char** dependencies() { return deps_; }
+  void set_auto_enable(bool value) { auto_enable_ = value; }
+  bool auto_enable() { return auto_enable_; }
+
+ private:
+  const char* name_;
+  const char* source_;
+  int dep_count_;
+  const char** deps_;
+  bool auto_enable_;
+
+  // Disallow copying and assigning.
+  Extension(const Extension&);
+  void operator=(const Extension&);
+};
+
+
+void V8EXPORT RegisterExtension(Extension* extension);
+
+
+/**
+ * Ignore
+ */
+class V8EXPORT DeclareExtension {
+ public:
+  inline DeclareExtension(Extension* extension) {
+    RegisterExtension(extension);
+  }
+};
+
+
+// --- S t a t i c s ---
+
+
+Handle<Primitive> V8EXPORT Undefined();
+Handle<Primitive> V8EXPORT Null();
+Handle<Boolean> V8EXPORT True();
+Handle<Boolean> V8EXPORT False();
+
+
+/**
+ * A set of constraints that specifies the limits of the runtime's memory use.
+ * You must set the heap size before initializing the VM - the size cannot be
+ * adjusted after the VM is initialized.
+ *
+ * If you are using threads then you should hold the V8::Locker lock while
+ * setting the stack limit and you must set a non-default stack limit separately
+ * for each thread.
+ */
+class V8EXPORT ResourceConstraints {
+ public:
+  ResourceConstraints();
+  int max_young_space_size() const { return max_young_space_size_; }
+  void set_max_young_space_size(int value) { max_young_space_size_ = value; }
+  int max_old_space_size() const { return max_old_space_size_; }
+  void set_max_old_space_size(int value) { max_old_space_size_ = value; }
+  uint32_t* stack_limit() const { return stack_limit_; }
+  // Sets an address beyond which the VM's stack may not grow.
+  void set_stack_limit(uint32_t* value) { stack_limit_ = value; }
+ private:
+  int max_young_space_size_;
+  int max_old_space_size_;
+  uint32_t* stack_limit_;
+};
+
+
+bool SetResourceConstraints(ResourceConstraints* constraints);
+
+
+// --- E x c e p t i o n s ---
+
+
+typedef void (*FatalErrorCallback)(const char* location, const char* message);
+
+
+typedef void (*MessageCallback)(Handle<Message> message, Handle<Value> data);
+
+
+/**
+ * Schedules an exception to be thrown when returning to JavaScript.  When an
+ * exception has been scheduled it is illegal to invoke any JavaScript
+ * operation; the caller must return immediately and only after the exception
+ * has been handled does it become legal to invoke JavaScript operations.
+ */
+Handle<Value> V8EXPORT ThrowException(Handle<Value> exception);
+
+/**
+ * Create new error objects by calling the corresponding error object
+ * constructor with the message.
+ */
+class V8EXPORT Exception {
+ public:
+  static Local<Value> RangeError(Handle<String> message);
+  static Local<Value> ReferenceError(Handle<String> message);
+  static Local<Value> SyntaxError(Handle<String> message);
+  static Local<Value> TypeError(Handle<String> message);
+  static Local<Value> Error(Handle<String> message);
+};
+
+
+// --- C o u n t e r s  C a l l b a c k s ---
+
+typedef int* (*CounterLookupCallback)(const char* name);
+
+typedef void* (*CreateHistogramCallback)(const char* name,
+                                         int min,
+                                         int max,
+                                         size_t buckets);
+
+typedef void (*AddHistogramSampleCallback)(void* histogram, int sample);
+
+// --- F a i l e d A c c e s s C h e c k C a l l b a c k ---
+typedef void (*FailedAccessCheckCallback)(Local<Object> target,
+                                          AccessType type,
+                                          Local<Value> data);
+
+// --- G a r b a g e C o l l e c t i o n  C a l l b a c k s
+
+/**
+ * Applications can register a callback function which is called
+ * before and after a major garbage collection.  Allocations are not
+ * allowed in the callback function, you therefore cannot manipulate
+ * objects (set or delete properties for example) since it is possible
+ * such operations will result in the allocation of objects.
+ */
+typedef void (*GCCallback)();
+
+
+// --- C o n t e x t  G e n e r a t o r ---
+
+/**
+ * Applications must provide a callback function which is called to generate
+ * a context if a context was not deserialized from the snapshot.
+ */
+typedef Persistent<Context> (*ContextGenerator)();
+
+
+/**
+ * Profiler modules.
+ *
+ * In V8, profiler consists of several modules: CPU profiler, and different
+ * kinds of heap profiling. Each can be turned on / off independently.
+ * When PROFILER_MODULE_HEAP_SNAPSHOT flag is passed to ResumeProfilerEx,
+ * modules are enabled only temporarily for making a snapshot of the heap.
+ */
+enum ProfilerModules {
+  PROFILER_MODULE_NONE            = 0,
+  PROFILER_MODULE_CPU             = 1,
+  PROFILER_MODULE_HEAP_STATS      = 1 << 1,
+  PROFILER_MODULE_JS_CONSTRUCTORS = 1 << 2,
+  PROFILER_MODULE_HEAP_SNAPSHOT   = 1 << 16
+};
+
+
+/**
+ * Container class for static utility functions.
+ */
+class V8EXPORT V8 {
+ public:
+  /** Set the callback to invoke in case of fatal errors. */
+  static void SetFatalErrorHandler(FatalErrorCallback that);
+
+  /**
+   * Ignore out-of-memory exceptions.
+   *
+   * V8 running out of memory is treated as a fatal error by default.
+   * This means that the fatal error handler is called and that V8 is
+   * terminated.
+   *
+   * IgnoreOutOfMemoryException can be used to not treat a
+   * out-of-memory situation as a fatal error.  This way, the contexts
+   * that did not cause the out of memory problem might be able to
+   * continue execution.
+   */
+  static void IgnoreOutOfMemoryException();
+
+  /**
+   * Check if V8 is dead and therefore unusable.  This is the case after
+   * fatal errors such as out-of-memory situations.
+   */
+  static bool IsDead();
+
+  /**
+   * Adds a message listener.
+   *
+   * The same message listener can be added more than once and it that
+   * case it will be called more than once for each message.
+   */
+  static bool AddMessageListener(MessageCallback that,
+                                 Handle<Value> data = Handle<Value>());
+
+  /**
+   * Remove all message listeners from the specified callback function.
+   */
+  static void RemoveMessageListeners(MessageCallback that);
+
+  /**
+   * Sets V8 flags from a string.
+   */
+  static void SetFlagsFromString(const char* str, int length);
+
+  /**
+   * Sets V8 flags from the command line.
+   */
+  static void SetFlagsFromCommandLine(int* argc,
+                                      char** argv,
+                                      bool remove_flags);
+
+  /** Get the version string. */
+  static const char* GetVersion();
+
+  /**
+   * Enables the host application to provide a mechanism for recording
+   * statistics counters.
+   */
+  static void SetCounterFunction(CounterLookupCallback);
+
+  /**
+   * Enables the host application to provide a mechanism for recording
+   * histograms. The CreateHistogram function returns a
+   * histogram which will later be passed to the AddHistogramSample
+   * function.
+   */
+  static void SetCreateHistogramFunction(CreateHistogramCallback);
+  static void SetAddHistogramSampleFunction(AddHistogramSampleCallback);
+
+  /**
+   * Enables the computation of a sliding window of states. The sliding
+   * window information is recorded in statistics counters.
+   */
+  static void EnableSlidingStateWindow();
+
+  /** Callback function for reporting failed access checks.*/
+  static void SetFailedAccessCheckCallbackFunction(FailedAccessCheckCallback);
+
+  /**
+   * Enables the host application to receive a notification before a
+   * major garbage colletion.  Allocations are not allowed in the
+   * callback function, you therefore cannot manipulate objects (set
+   * or delete properties for example) since it is possible such
+   * operations will result in the allocation of objects.
+   */
+  static void SetGlobalGCPrologueCallback(GCCallback);
+
+  /**
+   * Enables the host application to receive a notification after a
+   * major garbage collection.  Allocations are not allowed in the
+   * callback function, you therefore cannot manipulate objects (set
+   * or delete properties for example) since it is possible such
+   * operations will result in the allocation of objects.
+   */
+  static void SetGlobalGCEpilogueCallback(GCCallback);
+
+  /**
+   * Allows the host application to group objects together. If one
+   * object in the group is alive, all objects in the group are alive.
+   * After each garbage collection, object groups are removed. It is
+   * intended to be used in the before-garbage-collection callback
+   * function, for instance to simulate DOM tree connections among JS
+   * wrapper objects.
+   */
+  static void AddObjectGroup(Persistent<Value>* objects, size_t length);
+
+  /**
+   * Initializes from snapshot if possible. Otherwise, attempts to
+   * initialize from scratch.  This function is called implicitly if
+   * you use the API without calling it first.
+   */
+  static bool Initialize();
+
+  /**
+   * Adjusts the amount of registered external memory.  Used to give
+   * V8 an indication of the amount of externally allocated memory
+   * that is kept alive by JavaScript objects.  V8 uses this to decide
+   * when to perform global garbage collections.  Registering
+   * externally allocated memory will trigger global garbage
+   * collections more often than otherwise in an attempt to garbage
+   * collect the JavaScript objects keeping the externally allocated
+   * memory alive.
+   *
+   * \param change_in_bytes the change in externally allocated memory
+   *   that is kept alive by JavaScript objects.
+   * \returns the adjusted value.
+   */
+  static int AdjustAmountOfExternalAllocatedMemory(int change_in_bytes);
+
+  /**
+   * Suspends recording of tick samples in the profiler.
+   * When the V8 profiling mode is enabled (usually via command line
+   * switches) this function suspends recording of tick samples.
+   * Profiling ticks are discarded until ResumeProfiler() is called.
+   *
+   * See also the --prof and --prof_auto command line switches to
+   * enable V8 profiling.
+   */
+  static void PauseProfiler();
+
+  /**
+   * Resumes recording of tick samples in the profiler.
+   * See also PauseProfiler().
+   */
+  static void ResumeProfiler();
+
+  /**
+   * Return whether profiler is currently paused.
+   */
+  static bool IsProfilerPaused();
+
+  /**
+   * Resumes specified profiler modules.
+   * "ResumeProfiler" is equivalent to "ResumeProfilerEx(PROFILER_MODULE_CPU)".
+   * See ProfilerModules enum.
+   *
+   * \param flags Flags specifying profiler modules.
+   */
+  static void ResumeProfilerEx(int flags);
+
+  /**
+   * Pauses specified profiler modules.
+   * "PauseProfiler" is equivalent to "PauseProfilerEx(PROFILER_MODULE_CPU)".
+   * See ProfilerModules enum.
+   *
+   * \param flags Flags specifying profiler modules.
+   */
+  static void PauseProfilerEx(int flags);
+
+  /**
+   * Returns active (resumed) profiler modules.
+   * See ProfilerModules enum.
+   *
+   * \returns active profiler modules.
+   */
+  static int GetActiveProfilerModules();
+
+  /**
+   * If logging is performed into a memory buffer (via --logfile=*), allows to
+   * retrieve previously written messages. This can be used for retrieving
+   * profiler log data in the application. This function is thread-safe.
+   *
+   * Caller provides a destination buffer that must exist during GetLogLines
+   * call. Only whole log lines are copied into the buffer.
+   *
+   * \param from_pos specified a point in a buffer to read from, 0 is the
+   *   beginning of a buffer. It is assumed that caller updates its current
+   *   position using returned size value from the previous call.
+   * \param dest_buf destination buffer for log data.
+   * \param max_size size of the destination buffer.
+   * \returns actual size of log data copied into buffer.
+   */
+  static int GetLogLines(int from_pos, char* dest_buf, int max_size);
+
+  /**
+   * Retrieve the V8 thread id of the calling thread.
+   *
+   * The thread id for a thread should only be retrieved after the V8
+   * lock has been acquired with a Locker object with that thread.
+   */
+  static int GetCurrentThreadId();
+
+  /**
+   * Forcefully terminate execution of a JavaScript thread.  This can
+   * be used to terminate long-running scripts.
+   *
+   * TerminateExecution should only be called when then V8 lock has
+   * been acquired with a Locker object.  Therefore, in order to be
+   * able to terminate long-running threads, preemption must be
+   * enabled to allow the user of TerminateExecution to acquire the
+   * lock.
+   *
+   * The termination is achieved by throwing an exception that is
+   * uncatchable by JavaScript exception handlers.  Termination
+   * exceptions act as if they were caught by a C++ TryCatch exception
+   * handlers.  If forceful termination is used, any C++ TryCatch
+   * exception handler that catches an exception should check if that
+   * exception is a termination exception and immediately return if
+   * that is the case.  Returning immediately in that case will
+   * continue the propagation of the termination exception if needed.
+   *
+   * The thread id passed to TerminateExecution must have been
+   * obtained by calling GetCurrentThreadId on the thread in question.
+   *
+   * \param thread_id The thread id of the thread to terminate.
+   */
+  static void TerminateExecution(int thread_id);
+
+  /**
+   * Forcefully terminate the current thread of JavaScript execution.
+   *
+   * This method can be used by any thread even if that thread has not
+   * acquired the V8 lock with a Locker object.
+   */
+  static void TerminateExecution();
+
+  /**
+   * Releases any resources used by v8 and stops any utility threads
+   * that may be running.  Note that disposing v8 is permanent, it
+   * cannot be reinitialized.
+   *
+   * It should generally not be necessary to dispose v8 before exiting
+   * a process, this should happen automatically.  It is only necessary
+   * to use if the process needs the resources taken up by v8.
+   */
+  static bool Dispose();
+
+
+  /**
+   * Optional notification that the embedder is idle.
+   * V8 uses the notification to reduce memory footprint.
+   * This call can be used repeatedly if the embedder remains idle.
+   * \param is_high_priority tells whether the embedder is high priority.
+   * Returns true if the embedder should stop calling IdleNotification
+   * until real work has been done.  This indicates that V8 has done
+   * as much cleanup as it will be able to do.
+   */
+  static bool IdleNotification(bool is_high_priority);
+
+  /**
+   * Optional notification that the system is running low on memory.
+   * V8 uses these notifications to attempt to free memory.
+   */
+  static void LowMemoryNotification();
+
+ private:
+  V8();
+
+  static internal::Object** GlobalizeReference(internal::Object** handle);
+  static void DisposeGlobal(internal::Object** global_handle);
+  static void MakeWeak(internal::Object** global_handle,
+                       void* data,
+                       WeakReferenceCallback);
+  static void ClearWeak(internal::Object** global_handle);
+  static bool IsGlobalNearDeath(internal::Object** global_handle);
+  static bool IsGlobalWeak(internal::Object** global_handle);
+
+  template <class T> friend class Handle;
+  template <class T> friend class Local;
+  template <class T> friend class Persistent;
+  friend class Context;
+};
+
+
+/**
+ * An external exception handler.
+ */
+class V8EXPORT TryCatch {
+ public:
+
+  /**
+   * Creates a new try/catch block and registers it with v8.
+   */
+  TryCatch();
+
+  /**
+   * Unregisters and deletes this try/catch block.
+   */
+  ~TryCatch();
+
+  /**
+   * Returns true if an exception has been caught by this try/catch block.
+   */
+  bool HasCaught() const;
+
+  /**
+   * For certain types of exceptions, it makes no sense to continue
+   * execution.
+   *
+   * Currently, the only type of exception that can be caught by a
+   * TryCatch handler and for which it does not make sense to continue
+   * is termination exception.  Such exceptions are thrown when the
+   * TerminateExecution methods are called to terminate a long-running
+   * script.
+   *
+   * If CanContinue returns false, the correct action is to perform
+   * any C++ cleanup needed and then return.
+   */
+  bool CanContinue() const;
+
+  /**
+   * Returns the exception caught by this try/catch block.  If no exception has
+   * been caught an empty handle is returned.
+   *
+   * The returned handle is valid until this TryCatch block has been destroyed.
+   */
+  Local<Value> Exception() const;
+
+  /**
+   * Returns the .stack property of the thrown object.  If no .stack
+   * property is present an empty handle is returned.
+   */
+  Local<Value> StackTrace() const;
+
+  /**
+   * Returns the message associated with this exception.  If there is
+   * no message associated an empty handle is returned.
+   *
+   * The returned handle is valid until this TryCatch block has been
+   * destroyed.
+   */
+  Local<v8::Message> Message() const;
+
+  /**
+   * Clears any exceptions that may have been caught by this try/catch block.
+   * After this method has been called, HasCaught() will return false.
+   *
+   * It is not necessary to clear a try/catch block before using it again; if
+   * another exception is thrown the previously caught exception will just be
+   * overwritten.  However, it is often a good idea since it makes it easier
+   * to determine which operation threw a given exception.
+   */
+  void Reset();
+
+  /**
+   * Set verbosity of the external exception handler.
+   *
+   * By default, exceptions that are caught by an external exception
+   * handler are not reported.  Call SetVerbose with true on an
+   * external exception handler to have exceptions caught by the
+   * handler reported as if they were not caught.
+   */
+  void SetVerbose(bool value);
+
+  /**
+   * Set whether or not this TryCatch should capture a Message object
+   * which holds source information about where the exception
+   * occurred.  True by default.
+   */
+  void SetCaptureMessage(bool value);
+
+ public:
+  TryCatch* next_;
+  void* exception_;
+  void* message_;
+  bool is_verbose_;
+  bool can_continue_;
+  bool capture_message_;
+  void* js_handler_;
+};
+
+
+// --- C o n t e x t ---
+
+
+/**
+ * Ignore
+ */
+class V8EXPORT ExtensionConfiguration {
+ public:
+  ExtensionConfiguration(int name_count, const char* names[])
+      : name_count_(name_count), names_(names) { }
+ private:
+  friend class ImplementationUtilities;
+  int name_count_;
+  const char** names_;
+};
+
+
+/**
+ * A sandboxed execution context with its own set of built-in objects
+ * and functions.
+ */
+class V8EXPORT Context {
+ public:
+  /** Returns the global object of the context. */
+  Local<Object> Global();
+
+  /**
+   * Detaches the global object from its context before
+   * the global object can be reused to create a new context.
+   */
+  void DetachGlobal();
+
+  /** Creates a new context. */
+  static Persistent<Context> New(
+      ExtensionConfiguration* extensions = 0,
+      Handle<ObjectTemplate> global_template = Handle<ObjectTemplate>(),
+      Handle<Value> global_object = Handle<Value>());
+
+  /** Returns the last entered context. */
+  static Local<Context> GetEntered();
+
+  /** Returns the context that is on the top of the stack. */
+  static Local<Context> GetCurrent();
+
+  /**
+   * Returns the context of the calling JavaScript code.  That is the
+   * context of the top-most JavaScript frame.  If there are no
+   * JavaScript frames an empty handle is returned.
+   */
+  static Local<Context> GetCalling();
+
+  /**
+   * Sets the security token for the context.  To access an object in
+   * another context, the security tokens must match.
+   */
+  void SetSecurityToken(Handle<Value> token);
+
+  /** Restores the security token to the default value. */
+  void UseDefaultSecurityToken();
+
+  /** Returns the security token of this context.*/
+  Handle<Value> GetSecurityToken();
+
+  /**
+   * Enter this context.  After entering a context, all code compiled
+   * and run is compiled and run in this context.  If another context
+   * is already entered, this old context is saved so it can be
+   * restored when the new context is exited.
+   */
+  void Enter();
+
+  /**
+   * Exit this context.  Exiting the current context restores the
+   * context that was in place when entering the current context.
+   */
+  void Exit();
+
+  /** Returns true if the context has experienced an out of memory situation. */
+  bool HasOutOfMemoryException();
+
+  /** Returns true if V8 has a current context. */
+  static bool InContext();
+
+  /**
+   * Associate an additional data object with the context. This is mainly used
+   * with the debugger to provide additional information on the context through
+   * the debugger API.
+   */
+  void SetData(Handle<Value> data);
+  Local<Value> GetData();
+
+  /**
+   * Stack-allocated class which sets the execution context for all
+   * operations executed within a local scope.
+   */
+  class V8EXPORT Scope {
+   public:
+    inline Scope(Handle<Context> context) : context_(context) {
+      context_->Enter();
+    }
+    inline ~Scope() { context_->Exit(); }
+   private:
+    Handle<Context> context_;
+  };
+
+ private:
+  friend class Value;
+  friend class Script;
+  friend class Object;
+  friend class Function;
+};
+
+
+/**
+ * Multiple threads in V8 are allowed, but only one thread at a time
+ * is allowed to use V8.  The definition of 'using V8' includes
+ * accessing handles or holding onto object pointers obtained from V8
+ * handles.  It is up to the user of V8 to ensure (perhaps with
+ * locking) that this constraint is not violated.
+ *
+ * If you wish to start using V8 in a thread you can do this by constructing
+ * a v8::Locker object.  After the code using V8 has completed for the
+ * current thread you can call the destructor.  This can be combined
+ * with C++ scope-based construction as follows:
+ *
+ * \code
+ * ...
+ * {
+ *   v8::Locker locker;
+ *   ...
+ *   // Code using V8 goes here.
+ *   ...
+ * } // Destructor called here
+ * \endcode
+ *
+ * If you wish to stop using V8 in a thread A you can do this by either
+ * by destroying the v8::Locker object as above or by constructing a
+ * v8::Unlocker object:
+ *
+ * \code
+ * {
+ *   v8::Unlocker unlocker;
+ *   ...
+ *   // Code not using V8 goes here while V8 can run in another thread.
+ *   ...
+ * } // Destructor called here.
+ * \endcode
+ *
+ * The Unlocker object is intended for use in a long-running callback
+ * from V8, where you want to release the V8 lock for other threads to
+ * use.
+ *
+ * The v8::Locker is a recursive lock.  That is, you can lock more than
+ * once in a given thread.  This can be useful if you have code that can
+ * be called either from code that holds the lock or from code that does
+ * not.  The Unlocker is not recursive so you can not have several
+ * Unlockers on the stack at once, and you can not use an Unlocker in a
+ * thread that is not inside a Locker's scope.
+ *
+ * An unlocker will unlock several lockers if it has to and reinstate
+ * the correct depth of locking on its destruction. eg.:
+ *
+ * \code
+ * // V8 not locked.
+ * {
+ *   v8::Locker locker;
+ *   // V8 locked.
+ *   {
+ *     v8::Locker another_locker;
+ *     // V8 still locked (2 levels).
+ *     {
+ *       v8::Unlocker unlocker;
+ *       // V8 not locked.
+ *     }
+ *     // V8 locked again (2 levels).
+ *   }
+ *   // V8 still locked (1 level).
+ * }
+ * // V8 Now no longer locked.
+ * \endcode
+ */
+class V8EXPORT Unlocker {
+ public:
+  Unlocker();
+  ~Unlocker();
+};
+
+
+class V8EXPORT Locker {
+ public:
+  Locker();
+  ~Locker();
+
+  /**
+   * Start preemption.
+   *
+   * When preemption is started, a timer is fired every n milli seconds
+   * that will switch between multiple threads that are in contention
+   * for the V8 lock.
+   */
+  static void StartPreemption(int every_n_ms);
+
+  /**
+   * Stop preemption.
+   */
+  static void StopPreemption();
+
+  /**
+   * Returns whether or not the locker is locked by the current thread.
+   */
+  static bool IsLocked();
+
+  /**
+   * Returns whether v8::Locker is being used by this V8 instance.
+   */
+  static bool IsActive() { return active_; }
+
+ private:
+  bool has_lock_;
+  bool top_level_;
+
+  static bool active_;
+
+  // Disallow copying and assigning.
+  Locker(const Locker&);
+  void operator=(const Locker&);
+};
+
+
+
+// --- I m p l e m e n t a t i o n ---
+
+
+namespace internal {
+
+
+// Tag information for HeapObject.
+const int kHeapObjectTag = 1;
+const int kHeapObjectTagSize = 2;
+const intptr_t kHeapObjectTagMask = (1 << kHeapObjectTagSize) - 1;
+
+
+// Tag information for Smi.
+const int kSmiTag = 0;
+const int kSmiTagSize = 1;
+const intptr_t kSmiTagMask = (1 << kSmiTagSize) - 1;
+
+
+/**
+ * This class exports constants and functionality from within v8 that
+ * is necessary to implement inline functions in the v8 api.  Don't
+ * depend on functions and constants defined here.
+ */
+class Internals {
+ public:
+
+  // These values match non-compiler-dependent values defined within
+  // the implementation of v8.
+  static const int kHeapObjectMapOffset = 0;
+  static const int kMapInstanceTypeOffset = sizeof(void*) + sizeof(int);
+  static const int kStringResourceOffset = 2 * sizeof(void*);
+  static const int kProxyProxyOffset = sizeof(void*);
+  static const int kJSObjectHeaderSize = 3 * sizeof(void*);
+  static const int kFullStringRepresentationMask = 0x07;
+  static const int kExternalTwoByteRepresentationTag = 0x03;
+  static const int kAlignedPointerShift = 2;
+
+  // These constants are compiler dependent so their values must be
+  // defined within the implementation.
+  V8EXPORT static int kJSObjectType;
+  V8EXPORT static int kFirstNonstringType;
+  V8EXPORT static int kProxyType;
+
+  static inline bool HasHeapObjectTag(internal::Object* value) {
+    return ((reinterpret_cast<intptr_t>(value) & kHeapObjectTagMask) ==
+            kHeapObjectTag);
+  }
+
+  static inline bool HasSmiTag(internal::Object* value) {
+    return ((reinterpret_cast<intptr_t>(value) & kSmiTagMask) == kSmiTag);
+  }
+
+  static inline int SmiValue(internal::Object* value) {
+    return static_cast<int>(reinterpret_cast<intptr_t>(value)) >> kSmiTagSize;
+  }
+
+  static inline bool IsExternalTwoByteString(int instance_type) {
+    int representation = (instance_type & kFullStringRepresentationMask);
+    return representation == kExternalTwoByteRepresentationTag;
+  }
+
+  template <typename T>
+  static inline T ReadField(Object* ptr, int offset) {
+    uint8_t* addr = reinterpret_cast<uint8_t*>(ptr) + offset - kHeapObjectTag;
+    return *reinterpret_cast<T*>(addr);
+  }
+
+};
+
+}
+
+
+template <class T>
+Handle<T>::Handle() : val_(0) { }
+
+
+template <class T>
+Local<T>::Local() : Handle<T>() { }
+
+
+template <class T>
+Local<T> Local<T>::New(Handle<T> that) {
+  if (that.IsEmpty()) return Local<T>();
+  internal::Object** p = reinterpret_cast<internal::Object**>(*that);
+  return Local<T>(reinterpret_cast<T*>(HandleScope::CreateHandle(*p)));
+}
+
+
+template <class T>
+Persistent<T> Persistent<T>::New(Handle<T> that) {
+  if (that.IsEmpty()) return Persistent<T>();
+  internal::Object** p = reinterpret_cast<internal::Object**>(*that);
+  return Persistent<T>(reinterpret_cast<T*>(V8::GlobalizeReference(p)));
+}
+
+
+template <class T>
+bool Persistent<T>::IsNearDeath() const {
+  if (this->IsEmpty()) return false;
+  return V8::IsGlobalNearDeath(reinterpret_cast<internal::Object**>(**this));
+}
+
+
+template <class T>
+bool Persistent<T>::IsWeak() const {
+  if (this->IsEmpty()) return false;
+  return V8::IsGlobalWeak(reinterpret_cast<internal::Object**>(**this));
+}
+
+
+template <class T>
+void Persistent<T>::Dispose() {
+  if (this->IsEmpty()) return;
+  V8::DisposeGlobal(reinterpret_cast<internal::Object**>(**this));
+}
+
+
+template <class T>
+Persistent<T>::Persistent() : Handle<T>() { }
+
+template <class T>
+void Persistent<T>::MakeWeak(void* parameters, WeakReferenceCallback callback) {
+  V8::MakeWeak(reinterpret_cast<internal::Object**>(**this),
+               parameters,
+               callback);
+}
+
+template <class T>
+void Persistent<T>::ClearWeak() {
+  V8::ClearWeak(reinterpret_cast<internal::Object**>(**this));
+}
+
+Local<Value> Arguments::operator[](int i) const {
+  if (i < 0 || length_ <= i) return Local<Value>(*Undefined());
+  return Local<Value>(reinterpret_cast<Value*>(values_ - i));
+}
+
+
+Local<Function> Arguments::Callee() const {
+  return callee_;
+}
+
+
+Local<Object> Arguments::This() const {
+  return Local<Object>(reinterpret_cast<Object*>(values_ + 1));
+}
+
+
+Local<Object> Arguments::Holder() const {
+  return holder_;
+}
+
+
+Local<Value> Arguments::Data() const {
+  return data_;
+}
+
+
+bool Arguments::IsConstructCall() const {
+  return is_construct_call_;
+}
+
+
+int Arguments::Length() const {
+  return length_;
+}
+
+
+template <class T>
+Local<T> HandleScope::Close(Handle<T> value) {
+  internal::Object** before = reinterpret_cast<internal::Object**>(*value);
+  internal::Object** after = RawClose(before);
+  return Local<T>(reinterpret_cast<T*>(after));
+}
+
+Handle<Value> ScriptOrigin::ResourceName() const {
+  return resource_name_;
+}
+
+
+Handle<Integer> ScriptOrigin::ResourceLineOffset() const {
+  return resource_line_offset_;
+}
+
+
+Handle<Integer> ScriptOrigin::ResourceColumnOffset() const {
+  return resource_column_offset_;
+}
+
+
+Handle<Boolean> Boolean::New(bool value) {
+  return value ? True() : False();
+}
+
+
+void Template::Set(const char* name, v8::Handle<Data> value) {
+  Set(v8::String::New(name), value);
+}
+
+
+Local<Value> Object::GetInternalField(int index) {
+#ifndef V8_ENABLE_CHECKS
+  Local<Value> quick_result = UncheckedGetInternalField(index);
+  if (!quick_result.IsEmpty()) return quick_result;
+#endif
+  return CheckedGetInternalField(index);
+}
+
+
+Local<Value> Object::UncheckedGetInternalField(int index) {
+  typedef internal::Object O;
+  typedef internal::Internals I;
+  O* obj = *reinterpret_cast<O**>(this);
+  O* map = I::ReadField<O*>(obj, I::kHeapObjectMapOffset);
+  int instance_type = I::ReadField<uint8_t>(map, I::kMapInstanceTypeOffset);
+  if (instance_type == I::kJSObjectType) {
+    // If the object is a plain JSObject, which is the common case,
+    // we know where to find the internal fields and can return the
+    // value directly.
+    int offset = I::kJSObjectHeaderSize + (sizeof(void*) * index);
+    O* value = I::ReadField<O*>(obj, offset);
+    O** result = HandleScope::CreateHandle(value);
+    return Local<Value>(reinterpret_cast<Value*>(result));
+  } else {
+    return Local<Value>();
+  }
+}
+
+
+void* External::Unwrap(Handle<v8::Value> obj) {
+#ifdef V8_ENABLE_CHECKS
+  return FullUnwrap(obj);
+#else
+  return QuickUnwrap(obj);
+#endif
+}
+
+
+void* External::QuickUnwrap(Handle<v8::Value> wrapper) {
+  typedef internal::Object O;
+  typedef internal::Internals I;
+  O* obj = *reinterpret_cast<O**>(const_cast<v8::Value*>(*wrapper));
+  if (I::HasSmiTag(obj)) {
+    int value = I::SmiValue(obj) << I::kAlignedPointerShift;
+    return reinterpret_cast<void*>(value);
+  } else {
+    O* map = I::ReadField<O*>(obj, I::kHeapObjectMapOffset);
+    int instance_type = I::ReadField<uint8_t>(map, I::kMapInstanceTypeOffset);
+    if (instance_type == I::kProxyType) {
+      return I::ReadField<void*>(obj, I::kProxyProxyOffset);
+    } else {
+      return NULL;
+    }
+  }
+}
+
+
+void* Object::GetPointerFromInternalField(int index) {
+  return External::Unwrap(GetInternalField(index));
+}
+
+
+String* String::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<String*>(value);
+}
+
+
+String::ExternalStringResource* String::GetExternalStringResource() const {
+  typedef internal::Object O;
+  typedef internal::Internals I;
+  O* obj = *reinterpret_cast<O**>(const_cast<String*>(this));
+  O* map = I::ReadField<O*>(obj, I::kHeapObjectMapOffset);
+  int instance_type = I::ReadField<uint8_t>(map, I::kMapInstanceTypeOffset);
+  String::ExternalStringResource* result;
+  if (I::IsExternalTwoByteString(instance_type)) {
+    void* value = I::ReadField<void*>(obj, I::kStringResourceOffset);
+    result = reinterpret_cast<String::ExternalStringResource*>(value);
+  } else {
+    result = NULL;
+  }
+#ifdef V8_ENABLE_CHECKS
+  VerifyExternalStringResource(result);
+#endif
+  return result;
+}
+
+
+bool Value::IsString() const {
+#ifdef V8_ENABLE_CHECKS
+  return FullIsString();
+#else
+  return QuickIsString();
+#endif
+}
+
+bool Value::QuickIsString() const {
+  typedef internal::Object O;
+  typedef internal::Internals I;
+  O* obj = *reinterpret_cast<O**>(const_cast<Value*>(this));
+  if (!I::HasHeapObjectTag(obj)) return false;
+  O* map = I::ReadField<O*>(obj, I::kHeapObjectMapOffset);
+  int instance_type = I::ReadField<uint8_t>(map, I::kMapInstanceTypeOffset);
+  return (instance_type < I::kFirstNonstringType);
+}
+
+
+Number* Number::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<Number*>(value);
+}
+
+
+Integer* Integer::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<Integer*>(value);
+}
+
+
+Date* Date::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<Date*>(value);
+}
+
+
+Object* Object::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<Object*>(value);
+}
+
+
+Array* Array::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<Array*>(value);
+}
+
+
+Function* Function::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<Function*>(value);
+}
+
+
+External* External::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<External*>(value);
+}
+
+
+Local<Value> AccessorInfo::Data() const {
+  return Local<Value>(reinterpret_cast<Value*>(&args_[-3]));
+}
+
+
+Local<Object> AccessorInfo::This() const {
+  return Local<Object>(reinterpret_cast<Object*>(&args_[0]));
+}
+
+
+Local<Object> AccessorInfo::Holder() const {
+  return Local<Object>(reinterpret_cast<Object*>(&args_[-1]));
+}
+
+
+/**
+ * \example shell.cc
+ * A simple shell that takes a list of expressions on the
+ * command-line and executes them.
+ */
+
+
+/**
+ * \example process.cc
+ */
+
+
+}  // namespace v8
+
+
+#undef V8EXPORT
+#undef V8EXPORT_INLINE
+#undef TYPE_CHECK
+
+
+#endif  // V8_H_