Noissue - Remove v8 remains

jni/v8/v8.h

-// Copyright 2011 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 "v8stdint.h"
-
-#ifdef _WIN32
-
-// 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.
-#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)
-#elif USING_V8_SHARED
-#define V8EXPORT __declspec(dllimport)
-#else
-#define V8EXPORT
-#endif  // BUILDING_V8_SHARED
-
-#else  // _WIN32
-
-// 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")))
-#else  // defined(__GNUC__) && (__GNUC__ >= 4)
-#define V8EXPORT
-#endif  // defined(__GNUC__) && (__GNUC__ >= 4)
-
-#endif  // _WIN32
-
-/**
- * The v8 JavaScript engine.
- */
-namespace v8 {
-
-class Context;
-class String;
-class StringObject;
-class Value;
-class Utils;
-class Number;
-class NumberObject;
-class Object;
-class Array;
-class Int32;
-class Uint32;
-class External;
-class Primitive;
-class Boolean;
-class BooleanObject;
-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;
-class AccessorInfo;
-class StackTrace;
-class StackFrame;
-
-namespace internal {
-
-class Arguments;
-class Object;
-class Heap;
-class HeapObject;
-class Isolate;
-}
-
-
-// --- Weak Handles ---
-
-
-/**
- * A weak reference callback function.
- *
- * This callback should either explicitly invoke Dispose on |object| if
- * V8 wrapper is not needed anymore, or 'revive' it by invocation of MakeWeak.
- *
- * \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);
-
-
-// --- Handles ---
-
-#define TYPE_CHECK(T, S)                                       \
-  while (false) {                                              \
-    *(static_cast<T* volatile*>(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
- * a 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 Handle {
- public:
-  /**
-   * Creates an empty handle.
-   */
-  inline Handle() : val_(0) {}
-
-  /**
-   * Creates a new handle for the specified value.
-   */
-  inline 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 compile-time 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.
-   */
-  inline bool IsEmpty() const { return val_ == 0; }
-
-  /**
-   * Sets the handle to be empty. IsEmpty() will then return true.
-   */
-  inline void Clear() { val_ = 0; }
-
-  inline T* operator->() const { return val_; }
-
-  inline T* operator*() const { return val_; }
-
-  /**
-   * 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> inline 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> inline 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));
-  }
-
-  template <class S> inline Handle<S> As() {
-    return Handle<S>::Cast(*this);
-  }
-
- 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 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));
-  }
-
-  template <class S> inline Local<S> As() {
-    return Local<S>::Cast(*this);
-  }
-
-  /** 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 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 compile-time 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));
-  }
-
-  template <class S> inline Persistent<S> As() {
-    return Persistent<S>::Cast(*this);
-  }
-
-  /**
-   * 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 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();
-
-  /**
-   * Marks the reference to this object independent. Garbage collector
-   * is free to ignore any object groups containing this object.
-   * Weak callback for an independent handle should not
-   * assume that it will be preceded by a global GC prologue callback
-   * or followed by a global GC epilogue callback.
-   */
-  inline void MarkIndependent();
-
-  /**
-   *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;
-
-  /**
-   * Assigns a wrapper class ID to the handle. See RetainedObjectInfo
-   * interface description in v8-profiler.h for details.
-   */
-  inline void SetWrapperClassId(uint16_t class_id);
-
- 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);
-  // Faster version, uses HeapObject to obtain the current Isolate.
-  static internal::Object** CreateHandle(internal::HeapObject* 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 as HandleScopeData through a
-  // typedef in the ImplementationUtilities class.
-  class V8EXPORT Data {
-   public:
-    internal::Object** next;
-    internal::Object** limit;
-    int level;
-    inline void Initialize() {
-      next = limit = NULL;
-      level = 0;
-    }
-  };
-
-  void Leave();
-
-  internal::Isolate* isolate_;
-  internal::Object** prev_next_;
-  internal::Object** prev_limit_;
-
-  // 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;
-};
-
-
-// --- Special objects ---
-
-
-/**
- * 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() { }
-
-  /**
-   * Pre-compiles the specified script (context-independent).
-   *
-   * \param input Pointer to UTF-8 script source code.
-   * \param length Length of UTF-8 script source code.
-   */
-  static ScriptData* PreCompile(const char* input, int length);
-
-  /**
-   * Pre-compiles the specified script (context-independent).
-   *
-   * NOTE: Pre-compilation using this method cannot happen on another thread
-   * without using Lockers.
-   *
-   * \param source Script source code.
-   */
-  static ScriptData* PreCompile(Handle<String> source);
-
-  /**
-   * Load previous pre-compilation data.
-   *
-   * \param data Pointer to data returned by a call to Data() of a previous
-   *   ScriptData. Ownership is not transferred.
-   * \param length Length of data.
-   */
-  static ScriptData* New(const char* data, int length);
-
-  /**
-   * Returns the length of Data().
-   */
-  virtual int Length() = 0;
-
-  /**
-   * Returns a serialized representation of this ScriptData that can later be
-   * passed to New(). NOTE: Serialized data is platform-dependent.
-   */
-  virtual const char* Data() = 0;
-
-  /**
-   * Returns true if the source code could not be parsed.
-   */
-  virtual bool HasError() = 0;
-};
-
-
-/**
- * The origin, within a file, of a script.
- */
-class ScriptOrigin {
- public:
-  inline 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 (context-independent).
-   *
-   * \param source Script source code.
-   * \param origin Script origin, owned by caller, no references are kept
-   *   when New() returns
-   * \param pre_data Pre-parsing data, as obtained by ScriptData::PreCompile()
-   *   using pre_data speeds compilation if it's done multiple times.
-   *   Owned by caller, no references are kept when New() returns.
-   * \param script_data Arbitrary data associated with script. Using
-   *   this has same effect as calling SetData(), but allows data to be
-   *   available to compile event handlers.
-   * \return Compiled script object (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,
-                           Handle<String> script_data = Handle<String>());
-
-  /**
-   * Compiles the specified script using the specified file name
-   * object (typically a string) as the script's origin.
-   *
-   * \param source Script source code.
-   * \param file_name file name object (typically a string) to be used
-   *   as the script's origin.
-   * \return Compiled script object (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 (bound to current context).
-   *
-   * \param source Script source code.
-   * \param origin Script origin, owned by caller, no references are kept
-   *   when Compile() returns
-   * \param pre_data Pre-parsing data, as obtained by ScriptData::PreCompile()
-   *   using pre_data speeds compilation if it's done multiple times.
-   *   Owned by caller, no references are kept when Compile() returns.
-   * \param script_data Arbitrary data associated with script. Using
-   *   this has same effect as calling SetData(), but makes data available
-   *   earlier (i.e. to compile event handlers).
-   * \return Compiled script object, 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,
-                               Handle<String> script_data = Handle<String>());
-
-  /**
-   * Compiles the specified script using the specified file name
-   * object (typically a string) as the script's origin.
-   *
-   * \param source Script source code.
-   * \param file_name File name to use as script's origin
-   * \param script_data Arbitrary data associated with script. Using
-   *   this has same effect as calling SetData(), but makes data available
-   *   earlier (i.e. to compile event handlers).
-   * \return Compiled script object, 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,
-                               Handle<String> script_data = Handle<String>());
-
-  /**
-   * 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<String> 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;
-
-  /**
-   * Exception stack trace. By default stack traces are not captured for
-   * uncaught exceptions. SetCaptureStackTraceForUncaughtExceptions allows
-   * to change this option.
-   */
-  Handle<StackTrace> GetStackTrace() 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);
-
-  static const int kNoLineNumberInfo = 0;
-  static const int kNoColumnInfo = 0;
-};
-
-
-/**
- * Representation of a JavaScript stack trace. The information collected is a
- * snapshot of the execution stack and the information remains valid after
- * execution continues.
- */
-class V8EXPORT StackTrace {
- public:
-  /**
-   * Flags that determine what information is placed captured for each
-   * StackFrame when grabbing the current stack trace.
-   */
-  enum StackTraceOptions {
-    kLineNumber = 1,
-    kColumnOffset = 1 << 1 | kLineNumber,
-    kScriptName = 1 << 2,
-    kFunctionName = 1 << 3,
-    kIsEval = 1 << 4,
-    kIsConstructor = 1 << 5,
-    kScriptNameOrSourceURL = 1 << 6,
-    kOverview = kLineNumber | kColumnOffset | kScriptName | kFunctionName,
-    kDetailed = kOverview | kIsEval | kIsConstructor | kScriptNameOrSourceURL
-  };
-
-  /**
-   * Returns a StackFrame at a particular index.
-   */
-  Local<StackFrame> GetFrame(uint32_t index) const;
-
-  /**
-   * Returns the number of StackFrames.
-   */
-  int GetFrameCount() const;
-
-  /**
-   * Returns StackTrace as a v8::Array that contains StackFrame objects.
-   */
-  Local<Array> AsArray();
-
-  /**
-   * Grab a snapshot of the current JavaScript execution stack.
-   *
-   * \param frame_limit The maximum number of stack frames we want to capture.
-   * \param options Enumerates the set of things we will capture for each
-   *   StackFrame.
-   */
-  static Local<StackTrace> CurrentStackTrace(
-      int frame_limit,
-      StackTraceOptions options = kOverview);
-};
-
-
-/**
- * A single JavaScript stack frame.
- */
-class V8EXPORT StackFrame {
- public:
-  /**
-   * Returns the number, 1-based, of the line for the associate function call.
-   * This method will return Message::kNoLineNumberInfo if it is unable to
-   * retrieve the line number, or if kLineNumber was not passed as an option
-   * when capturing the StackTrace.
-   */
-  int GetLineNumber() const;
-
-  /**
-   * Returns the 1-based column offset on the line for the associated function
-   * call.
-   * This method will return Message::kNoColumnInfo if it is unable to retrieve
-   * the column number, or if kColumnOffset was not passed as an option when
-   * capturing the StackTrace.
-   */
-  int GetColumn() const;
-
-  /**
-   * Returns the name of the resource that contains the script for the
-   * function for this StackFrame.
-   */
-  Local<String> GetScriptName() const;
-
-  /**
-   * Returns the name of the resource that contains the script for the
-   * function for this StackFrame or sourceURL value if the script name
-   * is undefined and its source ends with //@ sourceURL=... string.
-   */
-  Local<String> GetScriptNameOrSourceURL() const;
-
-  /**
-   * Returns the name of the function associated with this stack frame.
-   */
-  Local<String> GetFunctionName() const;
-
-  /**
-   * Returns whether or not the associated function is compiled via a call to
-   * eval().
-   */
-  bool IsEval() const;
-
-  /**
-   * Returns whether or not the associated function is called as a
-   * constructor via "new".
-   */
-  bool IsConstructor() const;
-};
-
-
-// --- Value ---
-
-
-/**
- * The superclass of all JavaScript values and objects.
- */
-class Value : public Data {
- public:
-  /**
-   * Returns true if this value is the undefined value.  See ECMA-262
-   * 4.3.10.
-   */
-  V8EXPORT bool IsUndefined() const;
-
-  /**
-   * Returns true if this value is the null value.  See ECMA-262
-   * 4.3.11.
-   */
-  V8EXPORT bool IsNull() const;
-
-   /**
-   * Returns true if this value is true.
-   */
-  V8EXPORT bool IsTrue() const;
-
-  /**
-   * Returns true if this value is false.
-   */
-  V8EXPORT 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.
-   */
-  V8EXPORT bool IsFunction() const;
-
-  /**
-   * Returns true if this value is an array.
-   */
-  V8EXPORT bool IsArray() const;
-
-  /**
-   * Returns true if this value is an object.
-   */
-  V8EXPORT bool IsObject() const;
-
-  /**
-   * Returns true if this value is boolean.
-   */
-  V8EXPORT bool IsBoolean() const;
-
-  /**
-   * Returns true if this value is a number.
-   */
-  V8EXPORT bool IsNumber() const;
-
-  /**
-   * Returns true if this value is external.
-   */
-  V8EXPORT bool IsExternal() const;
-
-  /**
-   * Returns true if this value is a 32-bit signed integer.
-   */
-  V8EXPORT bool IsInt32() const;
-
-  /**
-   * Returns true if this value is a 32-bit unsigned integer.
-   */
-  V8EXPORT bool IsUint32() const;
-
-  /**
-   * Returns true if this value is a Date.
-   */
-  V8EXPORT bool IsDate() const;
-
-  /**
-   * Returns true if this value is a Boolean object.
-   */
-  V8EXPORT bool IsBooleanObject() const;
-
-  /**
-   * Returns true if this value is a Number object.
-   */
-  V8EXPORT bool IsNumberObject() const;
-
-  /**
-   * Returns true if this value is a String object.
-   */
-  V8EXPORT bool IsStringObject() const;
-
-  /**
-   * Returns true if this value is a NativeError.
-   */
-  V8EXPORT bool IsNativeError() const;
-
-  /**
-   * Returns true if this value is a RegExp.
-   */
-  V8EXPORT bool IsRegExp() const;
-
-  V8EXPORT Local<Boolean> ToBoolean() const;
-  V8EXPORT Local<Number> ToNumber() const;
-  V8EXPORT Local<String> ToString() const;
-  V8EXPORT Local<String> ToDetailString() const;
-  V8EXPORT Local<Object> ToObject() const;
-  V8EXPORT Local<Integer> ToInteger() const;
-  V8EXPORT Local<Uint32> ToUint32() const;
-  V8EXPORT Local<Int32> ToInt32() const;
-
-  /**
-   * Attempts to convert a string to an array index.
-   * Returns an empty handle if the conversion fails.
-   */
-  V8EXPORT Local<Uint32> ToArrayIndex() const;
-
-  V8EXPORT bool BooleanValue() const;
-  V8EXPORT double NumberValue() const;
-  V8EXPORT int64_t IntegerValue() const;
-  V8EXPORT uint32_t Uint32Value() const;
-  V8EXPORT int32_t Int32Value() const;
-
-  /** JS == */
-  V8EXPORT bool Equals(Handle<Value> that) const;
-  V8EXPORT bool StrictEquals(Handle<Value> that) const;
-
- private:
-  inline bool QuickIsString() const;
-  V8EXPORT bool FullIsString() const;
-};
-
-
-/**
- * The superclass of primitive values.  See ECMA-262 4.3.2.
- */
-class Primitive : public Value { };
-
-
-/**
- * A primitive boolean value (ECMA-262, 4.3.14).  Either the true
- * or false value.
- */
-class Boolean : public Primitive {
- public:
-  V8EXPORT bool Value() const;
-  static inline Handle<Boolean> New(bool value);
-};
-
-
-/**
- * A JavaScript string value (ECMA-262, 4.3.17).
- */
-class String : public Primitive {
- public:
-  /**
-   * Returns the number of characters in this string.
-   */
-  V8EXPORT int Length() const;
-
-  /**
-   * Returns the number of bytes in the UTF-8 encoded
-   * representation of this string.
-   */
-  V8EXPORT 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.
-   *
-   * WriteUtf8 will not write partial UTF-8 sequences, preferring to stop
-   * before the end of 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 characters to copy from the string.  For
-   *    WriteUtf8 the number of bytes in the buffer.
-   * \param nchars_ref The number of characters written, can be NULL.
-   * \param options Various options that might affect performance of this or
-   *    subsequent operations.
-   * \return The number of characters copied to the buffer excluding the null
-   *    terminator.  For WriteUtf8: The number of bytes copied to the buffer
-   *    including the null terminator (if written).
-   */
-  enum WriteOptions {
-    NO_OPTIONS = 0,
-    HINT_MANY_WRITES_EXPECTED = 1,
-    NO_NULL_TERMINATION = 2
-  };
-
-  // 16-bit character codes.
-  V8EXPORT int Write(uint16_t* buffer,
-                     int start = 0,
-                     int length = -1,
-                     int options = NO_OPTIONS) const;
-  // ASCII characters.
-  V8EXPORT int WriteAscii(char* buffer,
-                          int start = 0,
-                          int length = -1,
-                          int options = NO_OPTIONS) const;
-  // UTF-8 encoded characters.
-  V8EXPORT int WriteUtf8(char* buffer,
-                         int length = -1,
-                         int* nchars_ref = NULL,
-                         int options = NO_OPTIONS) const;
-
-  /**
-   * A zero length string.
-   */
-  V8EXPORT static v8::Local<v8::String> Empty();
-
-  /**
-   * Returns true if the string is external
-   */
-  V8EXPORT bool IsExternal() const;
-
-  /**
-   * Returns true if the string is both external and ASCII
-   */
-  V8EXPORT bool IsExternalAscii() const;
-
-  class V8EXPORT ExternalStringResourceBase {  // NOLINT
-   public:
-    virtual ~ExternalStringResourceBase() {}
-
-   protected:
-    ExternalStringResourceBase() {}
-
-    /**
-     * Internally V8 will call this Dispose method when the external string
-     * resource is no longer needed. The default implementation will use the
-     * delete operator. This method can be overridden in subclasses to
-     * control how allocated external string resources are disposed.
-     */
-    virtual void Dispose() { delete this; }
-
-   private:
-    // Disallow copying and assigning.
-    ExternalStringResourceBase(const ExternalStringResourceBase&);
-    void operator=(const ExternalStringResourceBase&);
-
-    friend class v8::internal::Heap;
-  };
-
-  /**
-   * 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
-      : public ExternalStringResourceBase {
-   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() {}
-  };
-
-  /**
-   * 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 Latin-1 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
-      : public ExternalStringResourceBase {
-   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() {}
-  };
-
-  /**
-   * 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.
-   */
-  V8EXPORT const 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.
-   */
-  V8EXPORT static Local<String> New(const char* data, int length = -1);
-
-  /** Allocates a new string from 16-bit character codes.*/
-  V8EXPORT static Local<String> New(const uint16_t* data, int length = -1);
-
-  /** Creates a symbol. Returns one if it exists already.*/
-  V8EXPORT static Local<String> NewSymbol(const char* data, int length = -1);
-
-  /**
-   * Creates a new string by concatenating the left and the right strings
-   * passed in as parameters.
-   */
-  V8EXPORT static Local<String> Concat(Handle<String> left,
-                                       Handle<String> right);
-
-  /**
-   * Creates a new external string using the data defined in the given
-   * resource. When the external string is no longer live on V8's heap the
-   * resource will be disposed by calling its Dispose method. The caller of
-   * this function should not otherwise delete or modify the resource. Neither
-   * should the underlying buffer be deallocated or modified except through the
-   * destructor of the external string resource.
-   */
-  V8EXPORT 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 need 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. See NewExternal for
-   * information on the lifetime of the resource.
-   */
-  V8EXPORT bool MakeExternal(ExternalStringResource* resource);
-
-  /**
-   * Creates a new external string using the ASCII data defined in the given
-   * resource. When the external string is no longer live on V8's heap the
-   * resource will be disposed by calling its Dispose method. The caller of
-   * this function should not otherwise delete or modify the resource. Neither
-   * should the underlying buffer be deallocated or modified except through the
-   * destructor of the external string resource.
-   */
-  V8EXPORT 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 need 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. See NewExternal for
-   * information on the lifetime of the resource.
-   */
-  V8EXPORT bool MakeExternal(ExternalAsciiStringResource* resource);
-
-  /**
-   * Returns true if this string can be made external.
-   */
-  V8EXPORT bool CanMakeExternal();
-
-  /** Creates an undetectable string from the supplied ASCII or UTF-8 data.*/
-  V8EXPORT static Local<String> NewUndetectable(const char* data,
-                                                int length = -1);
-
-  /** Creates an undetectable string from the supplied 16-bit character codes.*/
-  V8EXPORT static Local<String> NewUndetectable(const uint16_t* data,
-                                                int length = -1);
-
-  /**
-   * Converts an object to a UTF-8-encoded character array.  Useful if
-   * you want to print the object.  If conversion to a string fails
-   * (e.g. 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:
-  V8EXPORT void VerifyExternalStringResource(ExternalStringResource* val) const;
-  V8EXPORT static void CheckCast(v8::Value* obj);
-};
-
-
-/**
- * A JavaScript number value (ECMA-262, 4.3.20)
- */
-class Number : public Primitive {
- public:
-  V8EXPORT double Value() const;
-  V8EXPORT static Local<Number> New(double value);
-  static inline Number* Cast(v8::Value* obj);
- private:
-  V8EXPORT Number();
-  V8EXPORT static void CheckCast(v8::Value* obj);
-};
-
-
-/**
- * A JavaScript value representing a signed integer.
- */
-class Integer : public Number {
- public:
-  V8EXPORT static Local<Integer> New(int32_t value);
-  V8EXPORT static Local<Integer> NewFromUnsigned(uint32_t value);
-  V8EXPORT int64_t Value() const;
-  static inline Integer* Cast(v8::Value* obj);
- private:
-  V8EXPORT Integer();
-  V8EXPORT static void CheckCast(v8::Value* obj);
-};
-
-
-/**
- * A JavaScript value representing a 32-bit signed integer.
- */
-class Int32 : public Integer {
- public:
-  V8EXPORT int32_t Value() const;
- private:
-  V8EXPORT Int32();
-};
-
-
-/**
- * A JavaScript value representing a 32-bit unsigned integer.
- */
-class Uint32 : public Integer {
- public:
-  V8EXPORT uint32_t Value() const;
- private:
-  V8EXPORT Uint32();
-};
-
-
-enum PropertyAttribute {
-  None       = 0,
-  ReadOnly   = 1 << 0,
-  DontEnum   = 1 << 1,
-  DontDelete = 1 << 2
-};
-
-enum ExternalArrayType {
-  kExternalByteArray = 1,
-  kExternalUnsignedByteArray,
-  kExternalShortArray,
-  kExternalUnsignedShortArray,
-  kExternalIntArray,
-  kExternalUnsignedIntArray,
-  kExternalFloatArray,
-  kExternalDoubleArray,
-  kExternalPixelArray
-};
-
-/**
- * Accessor[Getter|Setter] are used as callback functions when
- * setting|getting a particular property. See Object and ObjectTemplate's
- * method SetAccessor.
- */
-typedef Handle<Value> (*AccessorGetter)(Local<String> property,
-                                        const AccessorInfo& info);
-
-
-typedef void (*AccessorSetter)(Local<String> property,
-                               Local<Value> value,
-                               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
-};
-
-
-/**
- * A JavaScript object (ECMA-262, 4.3.3)
- */
-class Object : public Value {
- public:
-  V8EXPORT bool Set(Handle<Value> key,
-                    Handle<Value> value,
-                    PropertyAttribute attribs = None);
-
-  V8EXPORT bool Set(uint32_t index,
-                    Handle<Value> value);
-
-  // 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.
-  V8EXPORT bool ForceSet(Handle<Value> key,
-                         Handle<Value> value,
-                         PropertyAttribute attribs = None);
-
-  V8EXPORT Local<Value> Get(Handle<Value> key);
-
-  V8EXPORT Local<Value> Get(uint32_t index);
-
-  /**
-   * Gets the property attributes of a property which can be None or
-   * any combination of ReadOnly, DontEnum and DontDelete. Returns
-   * None when the property doesn't exist.
-   */
-  V8EXPORT PropertyAttribute GetPropertyAttributes(Handle<Value> key);
-
-  // TODO(1245389): Replace the type-specific versions of these
-  // functions with generic ones that accept a Handle<Value> key.
-  V8EXPORT bool Has(Handle<String> key);
-
-  V8EXPORT bool Delete(Handle<String> key);
-
-  // Delete a property on this object bypassing interceptors and
-  // ignoring dont-delete attributes.
-  V8EXPORT bool ForceDelete(Handle<Value> key);
-
-  V8EXPORT bool Has(uint32_t index);
-
-  V8EXPORT bool Delete(uint32_t index);
-
-  V8EXPORT bool SetAccessor(Handle<String> name,
-                            AccessorGetter getter,
-                            AccessorSetter setter = 0,
-                            Handle<Value> data = Handle<Value>(),
-                            AccessControl settings = DEFAULT,
-                            PropertyAttribute attribute = None);
-
-  /**
-   * 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.
-   */
-  V8EXPORT Local<Array> GetPropertyNames();
-
-  /**
-   * This function has the same functionality as GetPropertyNames but
-   * the returned array doesn't contain the names of properties from
-   * prototype objects.
-   */
-  V8EXPORT Local<Array> GetOwnPropertyNames();
-
-  /**
-   * Get the prototype object.  This does not skip objects marked to
-   * be skipped by __proto__ and it does not consult the security
-   * handler.
-   */
-  V8EXPORT Local<Value> GetPrototype();
-
-  /**
-   * Set the prototype object.  This does not skip objects marked to
-   * be skipped by __proto__ and it does not consult the security
-   * handler.
-   */
-  V8EXPORT bool SetPrototype(Handle<Value> prototype);
-
-  /**
-   * Finds an instance of the given function template in the prototype
-   * chain.
-   */
-  V8EXPORT 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.
-   */
-  V8EXPORT Local<String> ObjectProtoToString();
-
-  /**
-   * Returns the name of the function invoked as a constructor for this object.
-   */
-  V8EXPORT Local<String> GetConstructorName();
-
-  /** Gets the number of internal fields for this Object. */
-  V8EXPORT int InternalFieldCount();
-  /** Gets the value in an internal field. */
-  inline Local<Value> GetInternalField(int index);
-  /** Sets the value in an internal field. */
-  V8EXPORT 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. */
-  V8EXPORT void SetPointerInInternalField(int index, void* value);
-
-  // Testers for local properties.
-  V8EXPORT bool HasOwnProperty(Handle<String> key);
-  V8EXPORT bool HasRealNamedProperty(Handle<String> key);
-  V8EXPORT bool HasRealIndexedProperty(uint32_t index);
-  V8EXPORT 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.
-   */
-  V8EXPORT 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.
-   */
-  V8EXPORT Local<Value> GetRealNamedProperty(Handle<String> key);
-
-  /** Tests for a named lookup interceptor.*/
-  V8EXPORT bool HasNamedLookupInterceptor();
-
-  /** Tests for an index lookup interceptor.*/
-  V8EXPORT 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.
-   */
-  V8EXPORT void TurnOnAccessCheck();
-
-  /**
-   * Returns the identity hash for this object. The current implementation
-   * 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.
-   */
-  V8EXPORT 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::".
-   */
-  V8EXPORT bool SetHiddenValue(Handle<String> key, Handle<Value> value);
-  V8EXPORT Local<Value> GetHiddenValue(Handle<String> key);
-  V8EXPORT 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.
-   */
-  V8EXPORT bool IsDirty();
-
-  /**
-   * Clone this object with a fast but shallow copy.  Values will point
-   * to the same values as the original object.
-   */
-  V8EXPORT Local<Object> Clone();
-
-  /**
-   * Returns the context in which the object was created.
-   */
-  V8EXPORT Local<Context> CreationContext();
-
-  /**
-   * 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.
-   */
-  V8EXPORT void SetIndexedPropertiesToPixelData(uint8_t* data, int length);
-  V8EXPORT bool HasIndexedPropertiesInPixelData();
-  V8EXPORT uint8_t* GetIndexedPropertiesPixelData();
-  V8EXPORT int GetIndexedPropertiesPixelDataLength();
-
-  /**
-   * 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 for the CanvasArray subtypes in the WebGL specification.
-   * Note: The embedding program still owns the data and needs to ensure that
-   *       the backing store is preserved while V8 has a reference.
-   */
-  V8EXPORT void SetIndexedPropertiesToExternalArrayData(
-      void* data,
-      ExternalArrayType array_type,
-      int number_of_elements);
-  V8EXPORT bool HasIndexedPropertiesInExternalArrayData();
-  V8EXPORT void* GetIndexedPropertiesExternalArrayData();
-  V8EXPORT ExternalArrayType GetIndexedPropertiesExternalArrayDataType();
-  V8EXPORT int GetIndexedPropertiesExternalArrayDataLength();
-
-  /**
-   * Checks whether a callback is set by the
-   * ObjectTemplate::SetCallAsFunctionHandler method.
-   * When an Object is callable this method returns true.
-   */
-  V8EXPORT bool IsCallable();
-
-  /**
-   * Call an Object as a function if a callback is set by the
-   * ObjectTemplate::SetCallAsFunctionHandler method.
-   */
-  V8EXPORT Local<Value> CallAsFunction(Handle<Object> recv,
-                                       int argc,
-                                       Handle<Value> argv[]);
-
-  /**
-   * Call an Object as a constructor if a callback is set by the
-   * ObjectTemplate::SetCallAsFunctionHandler method.
-   * Note: This method behaves like the Function::NewInstance method.
-   */
-  V8EXPORT Local<Value> CallAsConstructor(int argc,
-                                          Handle<Value> argv[]);
-
-  V8EXPORT static Local<Object> New();
-  static inline Object* Cast(Value* obj);
-
- private:
-  V8EXPORT Object();
-  V8EXPORT static void CheckCast(Value* obj);
-  V8EXPORT Local<Value> CheckedGetInternalField(int index);
-  V8EXPORT void* SlowGetPointerFromInternalField(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 Array : public Object {
- public:
-  V8EXPORT uint32_t Length() const;
-
-  /**
-   * Clones an element at index |index|.  Returns an empty
-   * handle if cloning fails (for any reason).
-   */
-  V8EXPORT Local<Object> CloneElementAt(uint32_t index);
-
-  /**
-   * Creates a JavaScript array with the given length. If the length
-   * is negative the returned array will have length 0.
-   */
-  V8EXPORT static Local<Array> New(int length = 0);
-
-  static inline Array* Cast(Value* obj);
- private:
-  V8EXPORT Array();
-  V8EXPORT static void CheckCast(Value* obj);
-};
-
-
-/**
- * A JavaScript function object (ECMA-262, 15.3).
- */
-class Function : public Object {
- public:
-  V8EXPORT Local<Object> NewInstance() const;
-  V8EXPORT Local<Object> NewInstance(int argc, Handle<Value> argv[]) const;
-  V8EXPORT Local<Value> Call(Handle<Object> recv,
-                             int argc,
-                             Handle<Value> argv[]);
-  V8EXPORT void SetName(Handle<String> name);
-  V8EXPORT Handle<Value> GetName() const;
-
-  /**
-   * Name inferred from variable or property assignment of this function.
-   * Used to facilitate debugging and profiling of JavaScript code written
-   * in an OO style, where many functions are anonymous but are assigned
-   * to object properties.
-   */
-  V8EXPORT Handle<Value> GetInferredName() const;
-
-  /**
-   * Returns zero based line number of function body and
-   * kLineOffsetNotFound if no information available.
-   */
-  V8EXPORT int GetScriptLineNumber() const;
-  /**
-   * Returns zero based column number of function body and
-   * kLineOffsetNotFound if no information available.
-   */
-  V8EXPORT int GetScriptColumnNumber() const;
-  V8EXPORT Handle<Value> GetScriptId() const;
-  V8EXPORT ScriptOrigin GetScriptOrigin() const;
-  static inline Function* Cast(Value* obj);
-  V8EXPORT static const int kLineOffsetNotFound;
-
- private:
-  V8EXPORT Function();
-  V8EXPORT static void CheckCast(Value* obj);
-};
-
-
-/**
- * An instance of the built-in Date constructor (ECMA-262, 15.9).
- */
-class Date : public Object {
- public:
-  V8EXPORT static Local<Value> New(double time);
-
-  /**
-   * A specialization of Value::NumberValue that is more efficient
-   * because we know the structure of this object.
-   */
-  V8EXPORT double NumberValue() const;
-
-  static inline Date* Cast(v8::Value* obj);
-
-  /**
-   * Notification that the embedder has changed the time zone,
-   * daylight savings time, or other date / time configuration
-   * parameters.  V8 keeps a cache of various values used for
-   * date / time computation.  This notification will reset
-   * those cached values for the current context so that date /
-   * time configuration changes would be reflected in the Date
-   * object.
-   *
-   * This API should not be called more than needed as it will
-   * negatively impact the performance of date operations.
-   */
-  V8EXPORT static void DateTimeConfigurationChangeNotification();
-
- private:
-  V8EXPORT static void CheckCast(v8::Value* obj);
-};
-
-
-/**
- * A Number object (ECMA-262, 4.3.21).
- */
-class NumberObject : public Object {
- public:
-  V8EXPORT static Local<Value> New(double value);
-
-  /**
-   * Returns the Number held by the object.
-   */
-  V8EXPORT double NumberValue() const;
-
-  static inline NumberObject* Cast(v8::Value* obj);
-
- private:
-  V8EXPORT static void CheckCast(v8::Value* obj);
-};
-
-
-/**
- * A Boolean object (ECMA-262, 4.3.15).
- */
-class BooleanObject : public Object {
- public:
-  V8EXPORT static Local<Value> New(bool value);
-
-  /**
-   * Returns the Boolean held by the object.
-   */
-  V8EXPORT bool BooleanValue() const;
-
-  static inline BooleanObject* Cast(v8::Value* obj);
-
- private:
-  V8EXPORT static void CheckCast(v8::Value* obj);
-};
-
-
-/**
- * A String object (ECMA-262, 4.3.18).
- */
-class StringObject : public Object {
- public:
-  V8EXPORT static Local<Value> New(Handle<String> value);
-
-  /**
-   * Returns the String held by the object.
-   */
-  V8EXPORT Local<String> StringValue() const;
-
-  static inline StringObject* Cast(v8::Value* obj);
-
- private:
-  V8EXPORT static void CheckCast(v8::Value* obj);
-};
-
-
-/**
- * An instance of the built-in RegExp constructor (ECMA-262, 15.10).
- */
-class RegExp : public Object {
- public:
-  /**
-   * Regular expression flag bits. They can be or'ed to enable a set
-   * of flags.
-   */
-  enum Flags {
-    kNone = 0,
-    kGlobal = 1,
-    kIgnoreCase = 2,
-    kMultiline = 4
-  };
-
-  /**
-   * Creates a regular expression from the given pattern string and
-   * the flags bit field. May throw a JavaScript exception as
-   * described in ECMA-262, 15.10.4.1.
-   *
-   * For example,
-   *   RegExp::New(v8::String::New("foo"),
-   *               static_cast<RegExp::Flags>(kGlobal | kMultiline))
-   * is equivalent to evaluating "/foo/gm".
-   */
-  V8EXPORT static Local<RegExp> New(Handle<String> pattern,
-                                    Flags flags);
-
-  /**
-   * Returns the value of the source property: a string representing
-   * the regular expression.
-   */
-  V8EXPORT Local<String> GetSource() const;
-
-  /**
-   * Returns the flags bit field.
-   */
-  V8EXPORT Flags GetFlags() const;
-
-  static inline RegExp* Cast(v8::Value* obj);
-
- private:
-  V8EXPORT static void CheckCast(v8::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 External : public Value {
- public:
-  V8EXPORT static Local<Value> Wrap(void* data);
-  static inline void* Unwrap(Handle<Value> obj);
-
-  V8EXPORT static Local<External> New(void* value);
-  static inline External* Cast(Value* obj);
-  V8EXPORT void* Value() const;
- private:
-  V8EXPORT External();
-  V8EXPORT static void CheckCast(v8::Value* obj);
-  static inline void* QuickUnwrap(Handle<v8::Value> obj);
-  V8EXPORT static void* FullUnwrap(Handle<v8::Value> obj);
-};
-
-
-// --- Templates ---
-
-
-/**
- * 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 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:
-  static const int kDataIndex = 0;
-  static const int kCalleeIndex = -1;
-  static const int kHolderIndex = -2;
-
-  friend class ImplementationUtilities;
-  inline Arguments(internal::Object** implicit_args,
-                   internal::Object** values,
-                   int length,
-                   bool is_construct_call);
-  internal::Object** implicit_args_;
-  internal::Object** values_;
-  int length_;
-  bool is_construct_call_;
-};
-
-
-/**
- * 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);
-
-/**
- * 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 an integer encoding property attributes (like v8::None,
- * v8::DontEnum, etc.)
- */
-typedef Handle<Integer> (*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 an integer encoding property attributes.
- */
-typedef Handle<Integer> (*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 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);
-
-  /**
-   * Sets the ReadOnly flag in the attributes of the 'prototype' property
-   * of functions created from this FunctionTemplate to true.
-   */
-  void ReadOnlyPrototype();
-
-  /**
-   * 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 if a property is present,
-   *   and if present, get its attributes.
-   * \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 if 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();
-};
-
-
-// --- Extensions ---
-
-class V8EXPORT ExternalAsciiStringResourceImpl
-    : public String::ExternalAsciiStringResource {
- public:
-  ExternalAsciiStringResourceImpl() : data_(0), length_(0) {}
-  ExternalAsciiStringResourceImpl(const char* data, size_t length)
-      : data_(data), length_(length) {}
-  const char* data() const { return data_; }
-  size_t length() const { return length_; }
-
- private:
-  const char* data_;
-  size_t length_;
-};
-
-/**
- * Ignore
- */
-class V8EXPORT Extension {  // NOLINT
- public:
-  // Note that the strings passed into this constructor must live as long
-  // as the Extension itself.
-  Extension(const char* name,
-            const char* source = 0,
-            int dep_count = 0,
-            const char** deps = 0,
-            int source_length = -1);
-  virtual ~Extension() { }
-  virtual v8::Handle<v8::FunctionTemplate>
-      GetNativeFunction(v8::Handle<v8::String> name) {
-    return v8::Handle<v8::FunctionTemplate>();
-  }
-
-  const char* name() const { return name_; }
-  size_t source_length() const { return source_length_; }
-  const String::ExternalAsciiStringResource* source() const {
-    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_;
-  size_t source_length_;  // expected to initialize before source_
-  ExternalAsciiStringResourceImpl 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);
-  }
-};
-
-
-// --- Statics ---
-
-
-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; }
-  int max_executable_size() { return max_executable_size_; }
-  void set_max_executable_size(int value) { max_executable_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_;
-  int max_executable_size_;
-  uint32_t* stack_limit_;
-};
-
-
-bool V8EXPORT SetResourceConstraints(ResourceConstraints* constraints);
-
-
-// --- Exceptions ---
-
-
-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);
-};
-
-
-// --- Counters Callbacks ---
-
-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);
-
-// --- Memory Allocation Callback ---
-  enum ObjectSpace {
-    kObjectSpaceNewSpace = 1 << 0,
-    kObjectSpaceOldPointerSpace = 1 << 1,
-    kObjectSpaceOldDataSpace = 1 << 2,
-    kObjectSpaceCodeSpace = 1 << 3,
-    kObjectSpaceMapSpace = 1 << 4,
-    kObjectSpaceLoSpace = 1 << 5,
-
-    kObjectSpaceAll = kObjectSpaceNewSpace | kObjectSpaceOldPointerSpace |
-      kObjectSpaceOldDataSpace | kObjectSpaceCodeSpace | kObjectSpaceMapSpace |
-      kObjectSpaceLoSpace
-  };
-
-  enum AllocationAction {
-    kAllocationActionAllocate = 1 << 0,
-    kAllocationActionFree = 1 << 1,
-    kAllocationActionAll = kAllocationActionAllocate | kAllocationActionFree
-  };
-
-typedef void (*MemoryAllocationCallback)(ObjectSpace space,
-                                         AllocationAction action,
-                                         int size);
-
-// --- Leave Script Callback ---
-typedef void (*CallCompletedCallback)();
-
-// --- Failed Access Check Callback ---
-typedef void (*FailedAccessCheckCallback)(Local<Object> target,
-                                          AccessType type,
-                                          Local<Value> data);
-
-// --- AllowCodeGenerationFromStrings callbacks ---
-
-/**
- * Callback to check if code generation from strings is allowed. See
- * Context::AllowCodeGenerationFromStrings.
- */
-typedef bool (*AllowCodeGenerationFromStringsCallback)(Local<Context> context);
-
-// --- Garbage Collection Callbacks ---
-
-/**
- * Applications can register callback functions which will be called
- * before and after a garbage collection.  Allocations are not
- * allowed in the callback functions, you therefore cannot manipulate
- * objects (set or delete properties for example) since it is possible
- * such operations will result in the allocation of objects.
- */
-enum GCType {
-  kGCTypeScavenge = 1 << 0,
-  kGCTypeMarkSweepCompact = 1 << 1,
-  kGCTypeAll = kGCTypeScavenge | kGCTypeMarkSweepCompact
-};
-
-enum GCCallbackFlags {
-  kNoGCCallbackFlags = 0,
-  kGCCallbackFlagCompacted = 1 << 0
-};
-
-typedef void (*GCPrologueCallback)(GCType type, GCCallbackFlags flags);
-typedef void (*GCEpilogueCallback)(GCType type, GCCallbackFlags flags);
-
-typedef void (*GCCallback)();
-
-
-/**
- * Collection of V8 heap information.
- *
- * Instances of this class can be passed to v8::V8::HeapStatistics to
- * get heap statistics from V8.
- */
-class V8EXPORT HeapStatistics {
- public:
-  HeapStatistics();
-  size_t total_heap_size() { return total_heap_size_; }
-  size_t total_heap_size_executable() { return total_heap_size_executable_; }
-  size_t used_heap_size() { return used_heap_size_; }
-  size_t heap_size_limit() { return heap_size_limit_; }
-
- private:
-  void set_total_heap_size(size_t size) { total_heap_size_ = size; }
-  void set_total_heap_size_executable(size_t size) {
-    total_heap_size_executable_ = size;
-  }
-  void set_used_heap_size(size_t size) { used_heap_size_ = size; }
-  void set_heap_size_limit(size_t size) { heap_size_limit_ = size; }
-
-  size_t total_heap_size_;
-  size_t total_heap_size_executable_;
-  size_t used_heap_size_;
-  size_t heap_size_limit_;
-
-  friend class V8;
-};
-
-
-class RetainedObjectInfo;
-
-/**
- * Isolate represents an isolated instance of the V8 engine.  V8
- * isolates have completely separate states.  Objects from one isolate
- * must not be used in other isolates.  When V8 is initialized a
- * default isolate is implicitly created and entered.  The embedder
- * can create additional isolates and use them in parallel in multiple
- * threads.  An isolate can be entered by at most one thread at any
- * given time.  The Locker/Unlocker API must be used to synchronize.
- */
-class V8EXPORT Isolate {
- public:
-  /**
-   * Stack-allocated class which sets the isolate for all operations
-   * executed within a local scope.
-   */
-  class V8EXPORT Scope {
-   public:
-    explicit Scope(Isolate* isolate) : isolate_(isolate) {
-      isolate->Enter();
-    }
-
-    ~Scope() { isolate_->Exit(); }
-
-   private:
-    Isolate* const isolate_;
-
-    // Prevent copying of Scope objects.
-    Scope(const Scope&);
-    Scope& operator=(const Scope&);
-  };
-
-  /**
-   * Creates a new isolate.  Does not change the currently entered
-   * isolate.
-   *
-   * When an isolate is no longer used its resources should be freed
-   * by calling Dispose().  Using the delete operator is not allowed.
-   */
-  static Isolate* New();
-
-  /**
-   * Returns the entered isolate for the current thread or NULL in
-   * case there is no current isolate.
-   */
-  static Isolate* GetCurrent();
-
-  /**
-   * Methods below this point require holding a lock (using Locker) in
-   * a multi-threaded environment.
-   */
-
-  /**
-   * Sets this isolate as the entered one for the current thread.
-   * Saves the previously entered one (if any), so that it can be
-   * restored when exiting.  Re-entering an isolate is allowed.
-   */
-  void Enter();
-
-  /**
-   * Exits this isolate by restoring the previously entered one in the
-   * current thread.  The isolate may still stay the same, if it was
-   * entered more than once.
-   *
-   * Requires: this == Isolate::GetCurrent().
-   */
-  void Exit();
-
-  /**
-   * Disposes the isolate.  The isolate must not be entered by any
-   * thread to be disposable.
-   */
-  void Dispose();
-
-  /**
-   * Associate embedder-specific data with the isolate
-   */
-  void SetData(void* data);
-
-  /**
-   * Retrive embedder-specific data from the isolate.
-   * Returns NULL if SetData has never been called.
-   */
-  void* GetData();
-
- private:
-  Isolate();
-  Isolate(const Isolate&);
-  ~Isolate();
-  Isolate& operator=(const Isolate&);
-  void* operator new(size_t size);
-  void operator delete(void*, size_t);
-};
-
-
-class StartupData {
- public:
-  enum CompressionAlgorithm {
-    kUncompressed,
-    kBZip2
-  };
-
-  const char* data;
-  int compressed_size;
-  int raw_size;
-};
-
-
-/**
- * A helper class for driving V8 startup data decompression.  It is based on
- * "CompressedStartupData" API functions from the V8 class.  It isn't mandatory
- * for an embedder to use this class, instead, API functions can be used
- * directly.
- *
- * For an example of the class usage, see the "shell.cc" sample application.
- */
-class V8EXPORT StartupDataDecompressor {  // NOLINT
- public:
-  StartupDataDecompressor();
-  virtual ~StartupDataDecompressor();
-  int Decompress();
-
- protected:
-  virtual int DecompressData(char* raw_data,
-                             int* raw_data_size,
-                             const char* compressed_data,
-                             int compressed_data_size) = 0;
-
- private:
-  char** raw_data;
-};
-
-
-/**
- * EntropySource is used as a callback function when v8 needs a source
- * of entropy.
- */
-typedef bool (*EntropySource)(unsigned char* buffer, size_t length);
-
-
-/**
- * ReturnAddressLocationResolver is used as a callback function when v8 is
- * resolving the location of a return address on the stack. Profilers that
- * change the return address on the stack can use this to resolve the stack
- * location to whereever the profiler stashed the original return address.
- * When invoked, return_addr_location will point to a location on stack where
- * a machine return address resides, this function should return either the
- * same pointer, or a pointer to the profiler's copy of the original return
- * address.
- */
-typedef uintptr_t (*ReturnAddressLocationResolver)(
-    uintptr_t return_addr_location);
-
-
-/**
- * Interface for iterating though all external resources in the heap.
- */
-class V8EXPORT ExternalResourceVisitor {  // NOLINT
- public:
-  virtual ~ExternalResourceVisitor() {}
-  virtual void VisitExternalString(Handle<String> string) {}
-};
-
-
-/**
- * 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);
-
-  /**
-   * Set the callback to invoke to check if code generation from
-   * strings should be allowed.
-   */
-  static void SetAllowCodeGenerationFromStringsCallback(
-      AllowCodeGenerationFromStringsCallback 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 an
-   * 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();
-
-  /**
-   * The following 4 functions are to be used when V8 is built with
-   * the 'compress_startup_data' flag enabled. In this case, the
-   * embedder must decompress startup data prior to initializing V8.
-   *
-   * This is how interaction with V8 should look like:
-   *   int compressed_data_count = v8::V8::GetCompressedStartupDataCount();
-   *   v8::StartupData* compressed_data =
-   *     new v8::StartupData[compressed_data_count];
-   *   v8::V8::GetCompressedStartupData(compressed_data);
-   *   ... decompress data (compressed_data can be updated in-place) ...
-   *   v8::V8::SetDecompressedStartupData(compressed_data);
-   *   ... now V8 can be initialized
-   *   ... make sure the decompressed data stays valid until V8 shutdown
-   *
-   * A helper class StartupDataDecompressor is provided. It implements
-   * the protocol of the interaction described above, and can be used in
-   * most cases instead of calling these API functions directly.
-   */
-  static StartupData::CompressionAlgorithm GetCompressedStartupDataAlgorithm();
-  static int GetCompressedStartupDataCount();
-  static void GetCompressedStartupData(StartupData* compressed_data);
-  static void SetDecompressedStartupData(StartupData* decompressed_data);
-
-  /**
-   * Adds a message listener.
-   *
-   * The same message listener can be added more than once and in 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);
-
-  /**
-   * Tells V8 to capture current stack trace when uncaught exception occurs
-   * and report it to the message listeners. The option is off by default.
-   */
-  static void SetCaptureStackTraceForUncaughtExceptions(
-      bool capture,
-      int frame_limit = 10,
-      StackTrace::StackTraceOptions options = StackTrace::kOverview);
-
-  /**
-   * 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
-   * 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. It is possible
-   * to specify the GCType filter for your callback. But it is not possible to
-   * register the same callback function two times with different
-   * GCType filters.
-   */
-  static void AddGCPrologueCallback(
-      GCPrologueCallback callback, GCType gc_type_filter = kGCTypeAll);
-
-  /**
-   * This function removes callback which was installed by
-   * AddGCPrologueCallback function.
-   */
-  static void RemoveGCPrologueCallback(GCPrologueCallback callback);
-
-  /**
-   * The function is deprecated. Please use AddGCPrologueCallback instead.
-   * Enables the host application to receive a notification before a
-   * 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 SetGlobalGCPrologueCallback(GCCallback);
-
-  /**
-   * Enables the host application to receive a notification after a
-   * 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. It is possible
-   * to specify the GCType filter for your callback. But it is not possible to
-   * register the same callback function two times with different
-   * GCType filters.
-   */
-  static void AddGCEpilogueCallback(
-      GCEpilogueCallback callback, GCType gc_type_filter = kGCTypeAll);
-
-  /**
-   * This function removes callback which was installed by
-   * AddGCEpilogueCallback function.
-   */
-  static void RemoveGCEpilogueCallback(GCEpilogueCallback callback);
-
-  /**
-   * The function is deprecated. Please use AddGCEpilogueCallback instead.
-   * 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);
-
-  /**
-   * Enables the host application to provide a mechanism to be notified
-   * and perform custom logging when V8 Allocates Executable Memory.
-   */
-  static void AddMemoryAllocationCallback(MemoryAllocationCallback callback,
-                                          ObjectSpace space,
-                                          AllocationAction action);
-
-  /**
-   * Removes callback that was installed by AddMemoryAllocationCallback.
-   */
-  static void RemoveMemoryAllocationCallback(MemoryAllocationCallback callback);
-
-  /**
-   * Adds a callback to notify the host application when a script finished
-   * running.  If a script re-enters the runtime during executing, the
-   * CallCompletedCallback is only invoked when the outer-most script
-   * execution ends.  Executing scripts inside the callback do not trigger
-   * further callbacks.
-   */
-  static void AddCallCompletedCallback(CallCompletedCallback callback);
-
-  /**
-   * Removes callback that was installed by AddCallCompletedCallback.
-   */
-  static void RemoveCallCompletedCallback(CallCompletedCallback callback);
-
-  /**
-   * 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.
-   * See v8-profiler.h for RetainedObjectInfo interface description.
-   */
-  static void AddObjectGroup(Persistent<Value>* objects,
-                             size_t length,
-                             RetainedObjectInfo* info = NULL);
-
-  /**
-   * Allows the host application to declare implicit references between
-   * the objects: if |parent| is alive, all |children| are alive too.
-   * After each garbage collection, all implicit references
-   * are removed.  It is intended to be used in the before-garbage-collection
-   * callback function.
-   */
-  static void AddImplicitReferences(Persistent<Object> parent,
-                                    Persistent<Value>* children,
-                                    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();
-
-  /**
-   * Allows the host application to provide a callback which can be used
-   * as a source of entropy for random number generators.
-   */
-  static void SetEntropySource(EntropySource source);
-
-  /**
-   * Allows the host application to provide a callback that allows v8 to
-   * cooperate with a profiler that rewrites return addresses on stack.
-   */
-  static void SetReturnAddressLocationResolver(
-      ReturnAddressLocationResolver return_address_resolver);
-
-  /**
-   * 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();
-
-  /**
-   * 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
-   * handler.  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
-   * in the given isolate. If no isolate is provided, the default
-   * isolate is used.
-   *
-   * This method can be used by any thread even if that thread has not
-   * acquired the V8 lock with a Locker object.
-   *
-   * \param isolate The isolate in which to terminate the current JS execution.
-   */
-  static void TerminateExecution(Isolate* isolate = NULL);
-
-  /**
-   * Is V8 terminating JavaScript execution.
-   *
-   * Returns true if JavaScript execution is currently terminating
-   * because of a call to TerminateExecution.  In that case there are
-   * still JavaScript frames on the stack and the termination
-   * exception is still active.
-   *
-   * \param isolate The isolate in which to check.
-   */
-  static bool IsExecutionTerminating(Isolate* isolate = NULL);
-
-  /**
-   * 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();
-
-  /**
-   * Get statistics about the heap memory usage.
-   */
-  static void GetHeapStatistics(HeapStatistics* heap_statistics);
-
-  /**
-   * Iterates through all external resources referenced from current isolate
-   * heap. This method is not expected to be used except for debugging purposes
-   * and may be quite slow.
-   */
-  static void VisitExternalResources(ExternalResourceVisitor* visitor);
-
-  /**
-   * 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.
-   * 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.
-   *
-   * The hint argument specifies the amount of work to be done in the function
-   * on scale from 1 to 1000. There is no guarantee that the actual work will
-   * match the hint.
-   */
-  static bool IdleNotification(int hint = 1000);
-
-  /**
-   * Optional notification that the system is running low on memory.
-   * V8 uses these notifications to attempt to free memory.
-   */
-  static void LowMemoryNotification();
-
-  /**
-   * Optional notification that a context has been disposed. V8 uses
-   * these notifications to guide the GC heuristic. Returns the number
-   * of context disposals - including this one - since the last time
-   * V8 had a chance to clean up.
-   */
-  static int ContextDisposedNotification();
-
- 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 void MarkIndependent(internal::Object** global_handle);
-  static bool IsGlobalNearDeath(internal::Object** global_handle);
-  static bool IsGlobalWeak(internal::Object** global_handle);
-  static void SetWrapperClassId(internal::Object** global_handle,
-                                uint16_t class_id);
-
-  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;
-
-  /**
-   * Throws the exception caught by this TryCatch in a way that avoids
-   * it being caught again by this same TryCatch.  As with ThrowException
-   * it is illegal to execute any JavaScript operations after calling
-   * ReThrow; the caller must return immediately to where the exception
-   * is caught.
-   */
-  Handle<Value> ReThrow();
-
-  /**
-   * 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);
-
- private:
-  v8::internal::Isolate* isolate_;
-  void* next_;
-  void* exception_;
-  void* message_;
-  bool is_verbose_ : 1;
-  bool can_continue_ : 1;
-  bool capture_message_ : 1;
-  bool rethrow_ : 1;
-
-  friend class v8::internal::Isolate;
-};
-
-
-// --- Context ---
-
-
-/**
- * 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 proxy object or global object itself for
-   * detached contexts.
-   *
-   * Global proxy object is a thin wrapper whose prototype points to
-   * actual context's global object with the properties like Object, etc.
-   * This is done that way for security reasons (for more details see
-   * https://wiki.mozilla.org/Gecko:SplitWindow).
-   *
-   * Please note that changes to global proxy object prototype most probably
-   * would break VM---v8 expects only global object as a prototype of
-   * global proxy object.
-   *
-   * If DetachGlobal() has been invoked, Global() would return actual global
-   * object until global is reattached with ReattachGlobal().
-   */
-  Local<Object> Global();
-
-  /**
-   * Detaches the global object from its context before
-   * the global object can be reused to create a new context.
-   */
-  void DetachGlobal();
-
-  /**
-   * Reattaches a global object to a context.  This can be used to
-   * restore the connection between a global object and a context
-   * after DetachGlobal has been called.
-   *
-   * \param global_object The global object to reattach to the
-   *   context.  For this to work, the global object must be the global
-   *   object that was associated with this context before a call to
-   *   DetachGlobal.
-   */
-  void ReattachGlobal(Handle<Object> global_object);
-
-  /** Creates a new context.
-   *
-   * Returns a persistent handle to the newly allocated context. This
-   * persistent handle has to be disposed when the context is no
-   * longer used so the context can be garbage collected.
-   *
-   * \param extensions An optional extension configuration containing
-   * the extensions to be installed in the newly created context.
-   *
-   * \param global_template An optional object template from which the
-   * global object for the newly created context will be created.
-   *
-   * \param global_object An optional global object to be reused for
-   * the newly created context. This global object must have been
-   * created by a previous call to Context::New with the same global
-   * template. The state of the global object will be completely reset
-   * and only object identify will remain.
-   */
-  static Persistent<Context> New(
-      ExtensionConfiguration* extensions = NULL,
-      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<String> data);
-  Local<Value> GetData();
-
-  /**
-   * Control whether code generation from strings is allowed. Calling
-   * this method with false will disable 'eval' and the 'Function'
-   * constructor for code running in this context. If 'eval' or the
-   * 'Function' constructor are used an exception will be thrown.
-   *
-   * If code generation from strings is not allowed the
-   * V8::AllowCodeGenerationFromStrings callback will be invoked if
-   * set before blocking the call to 'eval' or the 'Function'
-   * constructor. If that callback returns true, the call will be
-   * allowed, otherwise an exception will be thrown. If no callback is
-   * set an exception will be thrown.
-   */
-  void AllowCodeGenerationFromStrings(bool allow);
-
-  /**
-   * Returns true if code generation from strings is allowed for the context.
-   * For more details see AllowCodeGenerationFromStrings(bool) documentation.
-   */
-  bool IsCodeGenerationFromStringsAllowed();
-
-  /**
-   * Stack-allocated class which sets the execution context for all
-   * operations executed within a local scope.
-   */
-  class Scope {
-   public:
-    explicit 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 any given V8 isolate. See Isolate class
- * comments. The definition of 'using V8 isolate' includes
- * accessing handles or holding onto object pointers obtained
- * from V8 handles while in the particular V8 isolate.  It is up
- * to the user of V8 to ensure (perhaps with locking) that this
- * constraint is not violated.  In addition to any other synchronization
- * mechanism that may be used, the v8::Locker and v8::Unlocker classes
- * must be used to signal thead switches to V8.
- *
- * v8::Locker is a scoped lock object. While it's
- * active (i.e. between its construction and destruction) the current thread is
- * allowed to use the locked isolate. V8 guarantees that an isolate can be
- * locked by at most one thread at any time. In other words, the scope of a
- * v8::Locker is a critical section.
- *
- * Sample usage:
-* \code
- * ...
- * {
- *   v8::Locker locker(isolate);
- *   v8::Isolate::Scope isolate_scope(isolate);
- *   ...
- *   // Code using V8 and isolate goes here.
- *   ...
- * } // Destructor called here
- * \endcode
- *
- * If you wish to stop using V8 in a thread A you can do this either
- * by destroying the v8::Locker object as above or by constructing a
- * v8::Unlocker object:
- *
- * \code
- * {
- *   isolate->Exit();
- *   v8::Unlocker unlocker(isolate);
- *   ...
- *   // Code not using V8 goes here while V8 can run in another thread.
- *   ...
- * } // Destructor called here.
- * isolate->Enter();
- * \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(isolate);
- *   Isolate::Scope isolate_scope(isolate);
- *   // V8 locked.
- *   {
- *     v8::Locker another_locker(isolate);
- *     // V8 still locked (2 levels).
- *     {
- *       isolate->Exit();
- *       v8::Unlocker unlocker(isolate);
- *       // V8 not locked.
- *     }
- *     isolate->Enter();
- *     // V8 locked again (2 levels).
- *   }
- *   // V8 still locked (1 level).
- * }
- * // V8 Now no longer locked.
- * \endcode
- *
- *
- */
-class V8EXPORT Unlocker {
- public:
-  /**
-   * Initialize Unlocker for a given Isolate. NULL means default isolate.
-   */
-  explicit Unlocker(Isolate* isolate = NULL);
-  ~Unlocker();
- private:
-  internal::Isolate* isolate_;
-};
-
-
-class V8EXPORT Locker {
- public:
-  /**
-   * Initialize Locker for a given Isolate. NULL means default isolate.
-   */
-  explicit Locker(Isolate* isolate = NULL);
-  ~Locker();
-
-  /**
-   * Start preemption.
-   *
-   * When preemption is started, a timer is fired every n milliseconds
-   * 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 for a given isolate, or default isolate
-   * if NULL is given, is locked by the current thread.
-   */
-  static bool IsLocked(Isolate* isolate = NULL);
-
-  /**
-   * Returns whether v8::Locker is being used by this V8 instance.
-   */
-  static bool IsActive();
-
- private:
-  bool has_lock_;
-  bool top_level_;
-  internal::Isolate* isolate_;
-
-  static bool active_;
-
-  // Disallow copying and assigning.
-  Locker(const Locker&);
-  void operator=(const Locker&);
-};
-
-
-/**
- * An interface for exporting data from V8, using "push" model.
- */
-class V8EXPORT OutputStream {  // NOLINT
- public:
-  enum OutputEncoding {
-    kAscii = 0  // 7-bit ASCII.
-  };
-  enum WriteResult {
-    kContinue = 0,
-    kAbort = 1
-  };
-  virtual ~OutputStream() {}
-  /** Notify about the end of stream. */
-  virtual void EndOfStream() = 0;
-  /** Get preferred output chunk size. Called only once. */
-  virtual int GetChunkSize() { return 1024; }
-  /** Get preferred output encoding. Called only once. */
-  virtual OutputEncoding GetOutputEncoding() { return kAscii; }
-  /**
-   * Writes the next chunk of snapshot data into the stream. Writing
-   * can be stopped by returning kAbort as function result. EndOfStream
-   * will not be called in case writing was aborted.
-   */
-  virtual WriteResult WriteAsciiChunk(char* data, int size) = 0;
-};
-
-
-/**
- * An interface for reporting progress and controlling long-running
- * activities.
- */
-class V8EXPORT ActivityControl {  // NOLINT
- public:
-  enum ControlOption {
-    kContinue = 0,
-    kAbort = 1
-  };
-  virtual ~ActivityControl() {}
-  /**
-   * Notify about current progress. The activity can be stopped by
-   * returning kAbort as the callback result.
-   */
-  virtual ControlOption ReportProgressValue(int done, int total) = 0;
-};
-
-
-// --- Implementation ---
-
-
-namespace internal {
-
-const int kApiPointerSize = sizeof(void*);  // NOLINT
-const int kApiIntSize = sizeof(int);  // NOLINT
-
-// 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;
-
-template <size_t ptr_size> struct SmiTagging;
-
-// Smi constants for 32-bit systems.
-template <> struct SmiTagging<4> {
-  static const int kSmiShiftSize = 0;
-  static const int kSmiValueSize = 31;
-  static inline int SmiToInt(internal::Object* value) {
-    int shift_bits = kSmiTagSize + kSmiShiftSize;
-    // Throw away top 32 bits and shift down (requires >> to be sign extending).
-    return static_cast<int>(reinterpret_cast<intptr_t>(value)) >> shift_bits;
-  }
-
-  // For 32-bit systems any 2 bytes aligned pointer can be encoded as smi
-  // with a plain reinterpret_cast.
-  static const uintptr_t kEncodablePointerMask = 0x1;
-  static const int kPointerToSmiShift = 0;
-};
-
-// Smi constants for 64-bit systems.
-template <> struct SmiTagging<8> {
-  static const int kSmiShiftSize = 31;
-  static const int kSmiValueSize = 32;
-  static inline int SmiToInt(internal::Object* value) {
-    int shift_bits = kSmiTagSize + kSmiShiftSize;
-    // Shift down and throw away top 32 bits.
-    return static_cast<int>(reinterpret_cast<intptr_t>(value) >> shift_bits);
-  }
-
-  // To maximize the range of pointers that can be encoded
-  // in the available 32 bits, we require them to be 8 bytes aligned.
-  // This gives 2 ^ (32 + 3) = 32G address space covered.
-  // It might be not enough to cover stack allocated objects on some platforms.
-  static const int kPointerAlignment = 3;
-
-  static const uintptr_t kEncodablePointerMask =
-      ~(uintptr_t(0xffffffff) << kPointerAlignment);
-
-  static const int kPointerToSmiShift =
-      kSmiTagSize + kSmiShiftSize - kPointerAlignment;
-};
-
-typedef SmiTagging<kApiPointerSize> PlatformSmiTagging;
-const int kSmiShiftSize = PlatformSmiTagging::kSmiShiftSize;
-const int kSmiValueSize = PlatformSmiTagging::kSmiValueSize;
-const uintptr_t kEncodablePointerMask =
-    PlatformSmiTagging::kEncodablePointerMask;
-const int kPointerToSmiShift = PlatformSmiTagging::kPointerToSmiShift;
-
-template <size_t ptr_size> struct InternalConstants;
-
-// Internal constants for 32-bit systems.
-template <> struct InternalConstants<4> {
-  static const int kStringResourceOffset = 3 * kApiPointerSize;
-};
-
-// Internal constants for 64-bit systems.
-template <> struct InternalConstants<8> {
-  static const int kStringResourceOffset = 3 * kApiPointerSize;
-};
-
-/**
- * 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 = 1 * kApiPointerSize + kApiIntSize;
-  static const int kStringResourceOffset =
-      InternalConstants<kApiPointerSize>::kStringResourceOffset;
-
-  static const int kForeignAddressOffset = kApiPointerSize;
-  static const int kJSObjectHeaderSize = 3 * kApiPointerSize;
-  static const int kFullStringRepresentationMask = 0x07;
-  static const int kExternalTwoByteRepresentationTag = 0x02;
-
-  static const int kJSObjectType = 0xaa;
-  static const int kFirstNonstringType = 0x80;
-  static const int kForeignType = 0x85;
-
-  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 PlatformSmiTagging::SmiToInt(value);
-  }
-
-  static inline int GetInstanceType(internal::Object* obj) {
-    typedef internal::Object O;
-    O* map = ReadField<O*>(obj, kHeapObjectMapOffset);
-    return ReadField<uint8_t>(map, kMapInstanceTypeOffset);
-  }
-
-  static inline void* GetExternalPointerFromSmi(internal::Object* value) {
-    const uintptr_t address = reinterpret_cast<uintptr_t>(value);
-    return reinterpret_cast<void*>(address >> kPointerToSmiShift);
-  }
-
-  static inline void* GetExternalPointer(internal::Object* obj) {
-    if (HasSmiTag(obj)) {
-      return GetExternalPointerFromSmi(obj);
-    } else if (GetInstanceType(obj) == kForeignType) {
-      return ReadField<void*>(obj, kForeignAddressOffset);
-    } else {
-      return NULL;
-    }
-  }
-
-  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);
-  }
-
-  static inline bool CanCastToHeapObject(void* o) { return false; }
-  static inline bool CanCastToHeapObject(Context* o) { return true; }
-  static inline bool CanCastToHeapObject(String* o) { return true; }
-  static inline bool CanCastToHeapObject(Object* o) { return true; }
-  static inline bool CanCastToHeapObject(Message* o) { return true; }
-  static inline bool CanCastToHeapObject(StackTrace* o) { return true; }
-  static inline bool CanCastToHeapObject(StackFrame* o) { return true; }
-};
-
-}  // namespace internal
-
-
-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>();
-  T* that_ptr = *that;
-  internal::Object** p = reinterpret_cast<internal::Object**>(that_ptr);
-  if (internal::Internals::CanCastToHeapObject(that_ptr)) {
-    return Local<T>(reinterpret_cast<T*>(HandleScope::CreateHandle(
-        reinterpret_cast<internal::HeapObject*>(*p))));
-  }
-  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));
-}
-
-template <class T>
-void Persistent<T>::MarkIndependent() {
-  V8::MarkIndependent(reinterpret_cast<internal::Object**>(**this));
-}
-
-template <class T>
-void Persistent<T>::SetWrapperClassId(uint16_t class_id) {
-  V8::SetWrapperClassId(reinterpret_cast<internal::Object**>(**this), class_id);
-}
-
-Arguments::Arguments(internal::Object** implicit_args,
-                     internal::Object** values, int length,
-                     bool is_construct_call)
-    : implicit_args_(implicit_args),
-      values_(values),
-      length_(length),
-      is_construct_call_(is_construct_call) { }
-
-
-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 Local<Function>(reinterpret_cast<Function*>(
-      &implicit_args_[kCalleeIndex]));
-}
-
-
-Local<Object> Arguments::This() const {
-  return Local<Object>(reinterpret_cast<Object*>(values_ + 1));
-}
-
-
-Local<Object> Arguments::Holder() const {
-  return Local<Object>(reinterpret_cast<Object*>(
-      &implicit_args_[kHolderIndex]));
-}
-
-
-Local<Value> Arguments::Data() const {
-  return Local<Value>(reinterpret_cast<Value*>(&implicit_args_[kDataIndex]));
-}
-
-
-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);
-  if (I::GetInstanceType(obj) == 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 + (internal::kApiPointerSize * 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;
-  O* obj = *reinterpret_cast<O**>(const_cast<v8::Value*>(*wrapper));
-  return internal::Internals::GetExternalPointer(obj);
-}
-
-
-void* Object::GetPointerFromInternalField(int index) {
-  typedef internal::Object O;
-  typedef internal::Internals I;
-
-  O* obj = *reinterpret_cast<O**>(this);
-
-  if (I::GetInstanceType(obj) == 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 + (internal::kApiPointerSize * index);
-    O* value = I::ReadField<O*>(obj, offset);
-    return I::GetExternalPointer(value);
-  }
-
-  return SlowGetPointerFromInternalField(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));
-  String::ExternalStringResource* result;
-  if (I::IsExternalTwoByteString(I::GetInstanceType(obj))) {
-    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;
-  return (I::GetInstanceType(obj) < 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);
-}
-
-
-StringObject* StringObject::Cast(v8::Value* value) {
-#ifdef V8_ENABLE_CHECKS
-  CheckCast(value);
-#endif
-  return static_cast<StringObject*>(value);
-}
-
-
-NumberObject* NumberObject::Cast(v8::Value* value) {
-#ifdef V8_ENABLE_CHECKS
-  CheckCast(value);
-#endif
-  return static_cast<NumberObject*>(value);
-}
-
-
-BooleanObject* BooleanObject::Cast(v8::Value* value) {
-#ifdef V8_ENABLE_CHECKS
-  CheckCast(value);
-#endif
-  return static_cast<BooleanObject*>(value);
-}
-
-
-RegExp* RegExp::Cast(v8::Value* value) {
-#ifdef V8_ENABLE_CHECKS
-  CheckCast(value);
-#endif
-  return static_cast<RegExp*>(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_[-2]));
-}
-
-
-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 TYPE_CHECK
-
-
-#endif  // V8_H_