补充某些必要的文件

cocos2d-x/external/ios/include/v8/libplatform/libplatform-export.h

@@ -0,0 +1,29 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_LIBPLATFORM_LIBPLATFORM_EXPORT_H_
+#define V8_LIBPLATFORM_LIBPLATFORM_EXPORT_H_
+
+#if defined(_WIN32)
+
+#ifdef BUILDING_V8_PLATFORM_SHARED
+#define V8_PLATFORM_EXPORT __declspec(dllexport)
+#elif USING_V8_PLATFORM_SHARED
+#define V8_PLATFORM_EXPORT __declspec(dllimport)
+#else
+#define V8_PLATFORM_EXPORT
+#endif  // BUILDING_V8_PLATFORM_SHARED
+
+#else  // defined(_WIN32)
+
+// Setup for Linux shared library export.
+#ifdef BUILDING_V8_PLATFORM_SHARED
+#define V8_PLATFORM_EXPORT __attribute__((visibility("default")))
+#else
+#define V8_PLATFORM_EXPORT
+#endif
+
+#endif  // defined(_WIN32)
+
+#endif  // V8_LIBPLATFORM_LIBPLATFORM_EXPORT_H_

cocos2d-x/external/ios/include/v8/libplatform/libplatform.h

@@ -0,0 +1,83 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_LIBPLATFORM_LIBPLATFORM_H_
+#define V8_LIBPLATFORM_LIBPLATFORM_H_
+
+#include <memory>
+
+#include "libplatform/libplatform-export.h"
+#include "libplatform/v8-tracing.h"
+#include "v8-platform.h"  // NOLINT(build/include)
+#include "v8config.h"     // NOLINT(build/include)
+
+namespace v8 {
+namespace platform {
+
+enum class IdleTaskSupport { kDisabled, kEnabled };
+enum class InProcessStackDumping { kDisabled, kEnabled };
+
+enum class MessageLoopBehavior : bool {
+  kDoNotWait = false,
+  kWaitForWork = true
+};
+
+/**
+ * Returns a new instance of the default v8::Platform implementation.
+ *
+ * The caller will take ownership of the returned pointer. |thread_pool_size|
+ * is the number of worker threads to allocate for background jobs. If a value
+ * of zero is passed, a suitable default based on the current number of
+ * processors online will be chosen.
+ * If |idle_task_support| is enabled then the platform will accept idle
+ * tasks (IdleTasksEnabled will return true) and will rely on the embedder
+ * calling v8::platform::RunIdleTasks to process the idle tasks.
+ * If |tracing_controller| is nullptr, the default platform will create a
+ * v8::platform::TracingController instance and use it.
+ */
+V8_PLATFORM_EXPORT std::unique_ptr<v8::Platform> NewDefaultPlatform(
+    int thread_pool_size = 0,
+    IdleTaskSupport idle_task_support = IdleTaskSupport::kDisabled,
+    InProcessStackDumping in_process_stack_dumping =
+        InProcessStackDumping::kDisabled,
+    std::unique_ptr<v8::TracingController> tracing_controller = {});
+
+/**
+ * Pumps the message loop for the given isolate.
+ *
+ * The caller has to make sure that this is called from the right thread.
+ * Returns true if a task was executed, and false otherwise. Unless requested
+ * through the |behavior| parameter, this call does not block if no task is
+ * pending. The |platform| has to be created using |NewDefaultPlatform|.
+ */
+V8_PLATFORM_EXPORT bool PumpMessageLoop(
+    v8::Platform* platform, v8::Isolate* isolate,
+    MessageLoopBehavior behavior = MessageLoopBehavior::kDoNotWait);
+
+/**
+ * Runs pending idle tasks for at most |idle_time_in_seconds| seconds.
+ *
+ * The caller has to make sure that this is called from the right thread.
+ * This call does not block if no task is pending. The |platform| has to be
+ * created using |NewDefaultPlatform|.
+ */
+V8_PLATFORM_EXPORT void RunIdleTasks(v8::Platform* platform,
+                                     v8::Isolate* isolate,
+                                     double idle_time_in_seconds);
+
+/**
+ * Attempts to set the tracing controller for the given platform.
+ *
+ * The |platform| has to be created using |NewDefaultPlatform|.
+ *
+ */
+V8_DEPRECATE_SOON("Access the DefaultPlatform directly")
+V8_PLATFORM_EXPORT void SetTracingController(
+    v8::Platform* platform,
+    v8::platform::tracing::TracingController* tracing_controller);
+
+}  // namespace platform
+}  // namespace v8
+
+#endif  // V8_LIBPLATFORM_LIBPLATFORM_H_

cocos2d-x/external/ios/include/v8/libplatform/v8-tracing.h

@@ -0,0 +1,318 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_LIBPLATFORM_V8_TRACING_H_
+#define V8_LIBPLATFORM_V8_TRACING_H_
+
+#include <atomic>
+#include <fstream>
+#include <memory>
+#include <unordered_set>
+#include <vector>
+
+#include "libplatform/libplatform-export.h"
+#include "v8-platform.h"  // NOLINT(build/include)
+
+namespace perfetto {
+class TracingSession;
+}
+
+namespace v8 {
+
+namespace base {
+class Mutex;
+}  // namespace base
+
+namespace platform {
+namespace tracing {
+
+class TraceEventListener;
+class JSONTraceEventListener;
+
+const int kTraceMaxNumArgs = 2;
+
+class V8_PLATFORM_EXPORT TraceObject {
+ public:
+  union ArgValue {
+    V8_DEPRECATED("use as_uint ? true : false") bool as_bool;
+    uint64_t as_uint;
+    int64_t as_int;
+    double as_double;
+    const void* as_pointer;
+    const char* as_string;
+  };
+
+  TraceObject() = default;
+  ~TraceObject();
+  void Initialize(
+      char phase, const uint8_t* category_enabled_flag, const char* name,
+      const char* scope, uint64_t id, uint64_t bind_id, int num_args,
+      const char** arg_names, const uint8_t* arg_types,
+      const uint64_t* arg_values,
+      std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
+      unsigned int flags, int64_t timestamp, int64_t cpu_timestamp);
+  void UpdateDuration(int64_t timestamp, int64_t cpu_timestamp);
+  void InitializeForTesting(
+      char phase, const uint8_t* category_enabled_flag, const char* name,
+      const char* scope, uint64_t id, uint64_t bind_id, int num_args,
+      const char** arg_names, const uint8_t* arg_types,
+      const uint64_t* arg_values,
+      std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
+      unsigned int flags, int pid, int tid, int64_t ts, int64_t tts,
+      uint64_t duration, uint64_t cpu_duration);
+
+  int pid() const { return pid_; }
+  int tid() const { return tid_; }
+  char phase() const { return phase_; }
+  const uint8_t* category_enabled_flag() const {
+    return category_enabled_flag_;
+  }
+  const char* name() const { return name_; }
+  const char* scope() const { return scope_; }
+  uint64_t id() const { return id_; }
+  uint64_t bind_id() const { return bind_id_; }
+  int num_args() const { return num_args_; }
+  const char** arg_names() { return arg_names_; }
+  uint8_t* arg_types() { return arg_types_; }
+  ArgValue* arg_values() { return arg_values_; }
+  std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables() {
+    return arg_convertables_;
+  }
+  unsigned int flags() const { return flags_; }
+  int64_t ts() { return ts_; }
+  int64_t tts() { return tts_; }
+  uint64_t duration() { return duration_; }
+  uint64_t cpu_duration() { return cpu_duration_; }
+
+ private:
+  int pid_;
+  int tid_;
+  char phase_;
+  const char* name_;
+  const char* scope_;
+  const uint8_t* category_enabled_flag_;
+  uint64_t id_;
+  uint64_t bind_id_;
+  int num_args_ = 0;
+  const char* arg_names_[kTraceMaxNumArgs];
+  uint8_t arg_types_[kTraceMaxNumArgs];
+  ArgValue arg_values_[kTraceMaxNumArgs];
+  std::unique_ptr<v8::ConvertableToTraceFormat>
+      arg_convertables_[kTraceMaxNumArgs];
+  char* parameter_copy_storage_ = nullptr;
+  unsigned int flags_;
+  int64_t ts_;
+  int64_t tts_;
+  uint64_t duration_;
+  uint64_t cpu_duration_;
+
+  // Disallow copy and assign
+  TraceObject(const TraceObject&) = delete;
+  void operator=(const TraceObject&) = delete;
+};
+
+class V8_PLATFORM_EXPORT TraceWriter {
+ public:
+  TraceWriter() = default;
+  virtual ~TraceWriter() = default;
+  virtual void AppendTraceEvent(TraceObject* trace_event) = 0;
+  virtual void Flush() = 0;
+
+  static TraceWriter* CreateJSONTraceWriter(std::ostream& stream);
+  static TraceWriter* CreateJSONTraceWriter(std::ostream& stream,
+                                            const std::string& tag);
+
+ private:
+  // Disallow copy and assign
+  TraceWriter(const TraceWriter&) = delete;
+  void operator=(const TraceWriter&) = delete;
+};
+
+class V8_PLATFORM_EXPORT TraceBufferChunk {
+ public:
+  explicit TraceBufferChunk(uint32_t seq);
+
+  void Reset(uint32_t new_seq);
+  bool IsFull() const { return next_free_ == kChunkSize; }
+  TraceObject* AddTraceEvent(size_t* event_index);
+  TraceObject* GetEventAt(size_t index) { return &chunk_[index]; }
+
+  uint32_t seq() const { return seq_; }
+  size_t size() const { return next_free_; }
+
+  static const size_t kChunkSize = 64;
+
+ private:
+  size_t next_free_ = 0;
+  TraceObject chunk_[kChunkSize];
+  uint32_t seq_;
+
+  // Disallow copy and assign
+  TraceBufferChunk(const TraceBufferChunk&) = delete;
+  void operator=(const TraceBufferChunk&) = delete;
+};
+
+class V8_PLATFORM_EXPORT TraceBuffer {
+ public:
+  TraceBuffer() = default;
+  virtual ~TraceBuffer() = default;
+
+  virtual TraceObject* AddTraceEvent(uint64_t* handle) = 0;
+  virtual TraceObject* GetEventByHandle(uint64_t handle) = 0;
+  virtual bool Flush() = 0;
+
+  static const size_t kRingBufferChunks = 1024;
+
+  static TraceBuffer* CreateTraceBufferRingBuffer(size_t max_chunks,
+                                                  TraceWriter* trace_writer);
+
+ private:
+  // Disallow copy and assign
+  TraceBuffer(const TraceBuffer&) = delete;
+  void operator=(const TraceBuffer&) = delete;
+};
+
+// Options determines how the trace buffer stores data.
+enum TraceRecordMode {
+  // Record until the trace buffer is full.
+  RECORD_UNTIL_FULL,
+
+  // Record until the user ends the trace. The trace buffer is a fixed size
+  // and we use it as a ring buffer during recording.
+  RECORD_CONTINUOUSLY,
+
+  // Record until the trace buffer is full, but with a huge buffer size.
+  RECORD_AS_MUCH_AS_POSSIBLE,
+
+  // Echo to console. Events are discarded.
+  ECHO_TO_CONSOLE,
+};
+
+class V8_PLATFORM_EXPORT TraceConfig {
+ public:
+  typedef std::vector<std::string> StringList;
+
+  static TraceConfig* CreateDefaultTraceConfig();
+
+  TraceConfig() : enable_systrace_(false), enable_argument_filter_(false) {}
+  TraceRecordMode GetTraceRecordMode() const { return record_mode_; }
+  bool IsSystraceEnabled() const { return enable_systrace_; }
+  bool IsArgumentFilterEnabled() const { return enable_argument_filter_; }
+
+  void SetTraceRecordMode(TraceRecordMode mode) { record_mode_ = mode; }
+  void EnableSystrace() { enable_systrace_ = true; }
+  void EnableArgumentFilter() { enable_argument_filter_ = true; }
+
+  void AddIncludedCategory(const char* included_category);
+
+  bool IsCategoryGroupEnabled(const char* category_group) const;
+
+ private:
+  TraceRecordMode record_mode_;
+  bool enable_systrace_ : 1;
+  bool enable_argument_filter_ : 1;
+  StringList included_categories_;
+
+  // Disallow copy and assign
+  TraceConfig(const TraceConfig&) = delete;
+  void operator=(const TraceConfig&) = delete;
+};
+
+#if defined(_MSC_VER)
+#define V8_PLATFORM_NON_EXPORTED_BASE(code) \
+  __pragma(warning(suppress : 4275)) code
+#else
+#define V8_PLATFORM_NON_EXPORTED_BASE(code) code
+#endif  // defined(_MSC_VER)
+
+class V8_PLATFORM_EXPORT TracingController
+    : public V8_PLATFORM_NON_EXPORTED_BASE(v8::TracingController) {
+ public:
+  // The pointer returned from GetCategoryGroupEnabled() points to a value with
+  // zero or more of the following bits. Used in this class only. The
+  // TRACE_EVENT macros should only use the value as a bool. These values must
+  // be in sync with macro values in TraceEvent.h in Blink.
+  enum CategoryGroupEnabledFlags {
+    // Category group enabled for the recording mode.
+    ENABLED_FOR_RECORDING = 1 << 0,
+    // Category group enabled by SetEventCallbackEnabled().
+    ENABLED_FOR_EVENT_CALLBACK = 1 << 2,
+    // Category group enabled to export events to ETW.
+    ENABLED_FOR_ETW_EXPORT = 1 << 3
+  };
+
+  TracingController();
+  ~TracingController() override;
+
+  // Takes ownership of |trace_buffer|.
+  void Initialize(TraceBuffer* trace_buffer);
+#ifdef V8_USE_PERFETTO
+  // Must be called before StartTracing() if V8_USE_PERFETTO is true. Provides
+  // the output stream for the JSON trace data.
+  void InitializeForPerfetto(std::ostream* output_stream);
+  // Provide an optional listener for testing that will receive trace events.
+  // Must be called before StartTracing().
+  void SetTraceEventListenerForTesting(TraceEventListener* listener);
+#endif
+
+  // v8::TracingController implementation.
+  const uint8_t* GetCategoryGroupEnabled(const char* category_group) override;
+  uint64_t AddTraceEvent(
+      char phase, const uint8_t* category_enabled_flag, const char* name,
+      const char* scope, uint64_t id, uint64_t bind_id, int32_t num_args,
+      const char** arg_names, const uint8_t* arg_types,
+      const uint64_t* arg_values,
+      std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
+      unsigned int flags) override;
+  uint64_t AddTraceEventWithTimestamp(
+      char phase, const uint8_t* category_enabled_flag, const char* name,
+      const char* scope, uint64_t id, uint64_t bind_id, int32_t num_args,
+      const char** arg_names, const uint8_t* arg_types,
+      const uint64_t* arg_values,
+      std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
+      unsigned int flags, int64_t timestamp) override;
+  void UpdateTraceEventDuration(const uint8_t* category_enabled_flag,
+                                const char* name, uint64_t handle) override;
+  void AddTraceStateObserver(
+      v8::TracingController::TraceStateObserver* observer) override;
+  void RemoveTraceStateObserver(
+      v8::TracingController::TraceStateObserver* observer) override;
+
+  void StartTracing(TraceConfig* trace_config);
+  void StopTracing();
+
+  static const char* GetCategoryGroupName(const uint8_t* category_enabled_flag);
+
+ protected:
+  virtual int64_t CurrentTimestampMicroseconds();
+  virtual int64_t CurrentCpuTimestampMicroseconds();
+
+ private:
+  void UpdateCategoryGroupEnabledFlag(size_t category_index);
+  void UpdateCategoryGroupEnabledFlags();
+
+  std::unique_ptr<TraceBuffer> trace_buffer_;
+  std::unique_ptr<TraceConfig> trace_config_;
+  std::unique_ptr<base::Mutex> mutex_;
+  std::unordered_set<v8::TracingController::TraceStateObserver*> observers_;
+  std::atomic_bool recording_{false};
+#ifdef V8_USE_PERFETTO
+  std::ostream* output_stream_ = nullptr;
+  std::unique_ptr<JSONTraceEventListener> json_listener_;
+  TraceEventListener* listener_for_testing_ = nullptr;
+  std::unique_ptr<perfetto::TracingSession> tracing_session_;
+#endif
+
+  // Disallow copy and assign
+  TracingController(const TracingController&) = delete;
+  void operator=(const TracingController&) = delete;
+};
+
+#undef V8_PLATFORM_NON_EXPORTED_BASE
+
+}  // namespace tracing
+}  // namespace platform
+}  // namespace v8
+
+#endif  // V8_LIBPLATFORM_V8_TRACING_H_

cocos2d-x/external/ios/include/v8/v8-inspector-protocol.h

@@ -0,0 +1,13 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_V8_INSPECTOR_PROTOCOL_H_
+#define V8_V8_INSPECTOR_PROTOCOL_H_
+
+#include "inspector/Debugger.h"  // NOLINT(build/include)
+#include "inspector/Runtime.h"   // NOLINT(build/include)
+#include "inspector/Schema.h"    // NOLINT(build/include)
+#include "v8-inspector.h"        // NOLINT(build/include)
+
+#endif  // V8_V8_INSPECTOR_PROTOCOL_H_

cocos2d-x/external/ios/include/v8/v8-inspector.h

@@ -0,0 +1,325 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_V8_INSPECTOR_H_
+#define V8_V8_INSPECTOR_H_
+
+#include <stdint.h>
+#include <cctype>
+
+#include <memory>
+#include <unordered_map>
+
+#include "v8.h"  // NOLINT(build/include)
+
+namespace v8_inspector {
+
+namespace protocol {
+namespace Debugger {
+namespace API {
+class SearchMatch;
+}
+}
+namespace Runtime {
+namespace API {
+class RemoteObject;
+class StackTrace;
+class StackTraceId;
+}
+}
+namespace Schema {
+namespace API {
+class Domain;
+}
+}
+}  // namespace protocol
+
+class V8_EXPORT StringView {
+ public:
+  StringView() : m_is8Bit(true), m_length(0), m_characters8(nullptr) {}
+
+  StringView(const uint8_t* characters, size_t length)
+      : m_is8Bit(true), m_length(length), m_characters8(characters) {}
+
+  StringView(const uint16_t* characters, size_t length)
+      : m_is8Bit(false), m_length(length), m_characters16(characters) {}
+
+  bool is8Bit() const { return m_is8Bit; }
+  size_t length() const { return m_length; }
+
+  // TODO(dgozman): add DCHECK(m_is8Bit) to accessors once platform can be used
+  // here.
+  const uint8_t* characters8() const { return m_characters8; }
+  const uint16_t* characters16() const { return m_characters16; }
+
+ private:
+  bool m_is8Bit;
+  size_t m_length;
+  union {
+    const uint8_t* m_characters8;
+    const uint16_t* m_characters16;
+  };
+};
+
+class V8_EXPORT StringBuffer {
+ public:
+  virtual ~StringBuffer() = default;
+  virtual const StringView& string() = 0;
+  // This method copies contents.
+  static std::unique_ptr<StringBuffer> create(const StringView&);
+};
+
+class V8_EXPORT V8ContextInfo {
+ public:
+  V8ContextInfo(v8::Local<v8::Context> context, int contextGroupId,
+                const StringView& humanReadableName)
+      : context(context),
+        contextGroupId(contextGroupId),
+        humanReadableName(humanReadableName),
+        hasMemoryOnConsole(false) {}
+
+  v8::Local<v8::Context> context;
+  // Each v8::Context is a part of a group. The group id must be non-zero.
+  int contextGroupId;
+  StringView humanReadableName;
+  StringView origin;
+  StringView auxData;
+  bool hasMemoryOnConsole;
+
+  static int executionContextId(v8::Local<v8::Context> context);
+
+  // Disallow copying and allocating this one.
+  enum NotNullTagEnum { NotNullLiteral };
+  void* operator new(size_t) = delete;
+  void* operator new(size_t, NotNullTagEnum, void*) = delete;
+  void* operator new(size_t, void*) = delete;
+  V8ContextInfo(const V8ContextInfo&) = delete;
+  V8ContextInfo& operator=(const V8ContextInfo&) = delete;
+};
+
+class V8_EXPORT V8StackTrace {
+ public:
+  virtual StringView firstNonEmptySourceURL() const = 0;
+  virtual bool isEmpty() const = 0;
+  virtual StringView topSourceURL() const = 0;
+  virtual int topLineNumber() const = 0;
+  virtual int topColumnNumber() const = 0;
+  virtual StringView topScriptId() const = 0;
+  virtual StringView topFunctionName() const = 0;
+
+  virtual ~V8StackTrace() = default;
+  virtual std::unique_ptr<protocol::Runtime::API::StackTrace>
+  buildInspectorObject() const = 0;
+  virtual std::unique_ptr<protocol::Runtime::API::StackTrace>
+  buildInspectorObject(int maxAsyncDepth) const = 0;
+  virtual std::unique_ptr<StringBuffer> toString() const = 0;
+
+  // Safe to pass between threads, drops async chain.
+  virtual std::unique_ptr<V8StackTrace> clone() = 0;
+};
+
+class V8_EXPORT V8InspectorSession {
+ public:
+  virtual ~V8InspectorSession() = default;
+
+  // Cross-context inspectable values (DOM nodes in different worlds, etc.).
+  class V8_EXPORT Inspectable {
+   public:
+    virtual v8::Local<v8::Value> get(v8::Local<v8::Context>) = 0;
+    virtual ~Inspectable() = default;
+  };
+  virtual void addInspectedObject(std::unique_ptr<Inspectable>) = 0;
+
+  // Dispatching protocol messages.
+  static bool canDispatchMethod(const StringView& method);
+  virtual void dispatchProtocolMessage(const StringView& message) = 0;
+  virtual std::vector<uint8_t> state() = 0;
+  virtual std::vector<std::unique_ptr<protocol::Schema::API::Domain>>
+  supportedDomains() = 0;
+
+  // Debugger actions.
+  virtual void schedulePauseOnNextStatement(const StringView& breakReason,
+                                            const StringView& breakDetails) = 0;
+  virtual void cancelPauseOnNextStatement() = 0;
+  virtual void breakProgram(const StringView& breakReason,
+                            const StringView& breakDetails) = 0;
+  virtual void setSkipAllPauses(bool) = 0;
+  virtual void resume() = 0;
+  virtual void stepOver() = 0;
+  virtual std::vector<std::unique_ptr<protocol::Debugger::API::SearchMatch>>
+  searchInTextByLines(const StringView& text, const StringView& query,
+                      bool caseSensitive, bool isRegex) = 0;
+
+  // Remote objects.
+  virtual std::unique_ptr<protocol::Runtime::API::RemoteObject> wrapObject(
+      v8::Local<v8::Context>, v8::Local<v8::Value>, const StringView& groupName,
+      bool generatePreview) = 0;
+
+  virtual bool unwrapObject(std::unique_ptr<StringBuffer>* error,
+                            const StringView& objectId, v8::Local<v8::Value>*,
+                            v8::Local<v8::Context>*,
+                            std::unique_ptr<StringBuffer>* objectGroup) = 0;
+  virtual void releaseObjectGroup(const StringView&) = 0;
+};
+
+class V8_EXPORT V8InspectorClient {
+ public:
+  virtual ~V8InspectorClient() = default;
+
+  virtual void runMessageLoopOnPause(int contextGroupId) {}
+  virtual void quitMessageLoopOnPause() {}
+  virtual void runIfWaitingForDebugger(int contextGroupId) {}
+
+  virtual void muteMetrics(int contextGroupId) {}
+  virtual void unmuteMetrics(int contextGroupId) {}
+
+  virtual void beginUserGesture() {}
+  virtual void endUserGesture() {}
+
+  virtual std::unique_ptr<StringBuffer> valueSubtype(v8::Local<v8::Value>) {
+    return nullptr;
+  }
+  virtual bool formatAccessorsAsProperties(v8::Local<v8::Value>) {
+    return false;
+  }
+  virtual bool isInspectableHeapObject(v8::Local<v8::Object>) { return true; }
+
+  virtual v8::Local<v8::Context> ensureDefaultContextInGroup(
+      int contextGroupId) {
+    return v8::Local<v8::Context>();
+  }
+  virtual void beginEnsureAllContextsInGroup(int contextGroupId) {}
+  virtual void endEnsureAllContextsInGroup(int contextGroupId) {}
+
+  virtual void installAdditionalCommandLineAPI(v8::Local<v8::Context>,
+                                               v8::Local<v8::Object>) {}
+  virtual void consoleAPIMessage(int contextGroupId,
+                                 v8::Isolate::MessageErrorLevel level,
+                                 const StringView& message,
+                                 const StringView& url, unsigned lineNumber,
+                                 unsigned columnNumber, V8StackTrace*) {}
+  virtual v8::MaybeLocal<v8::Value> memoryInfo(v8::Isolate*,
+                                               v8::Local<v8::Context>) {
+    return v8::MaybeLocal<v8::Value>();
+  }
+
+  virtual void consoleTime(const StringView& title) {}
+  virtual void consoleTimeEnd(const StringView& title) {}
+  virtual void consoleTimeStamp(const StringView& title) {}
+  virtual void consoleClear(int contextGroupId) {}
+  virtual double currentTimeMS() { return 0; }
+  typedef void (*TimerCallback)(void*);
+  virtual void startRepeatingTimer(double, TimerCallback, void* data) {}
+  virtual void cancelTimer(void* data) {}
+
+  // TODO(dgozman): this was added to support service worker shadow page. We
+  // should not connect at all.
+  virtual bool canExecuteScripts(int contextGroupId) { return true; }
+
+  virtual void maxAsyncCallStackDepthChanged(int depth) {}
+
+  virtual std::unique_ptr<StringBuffer> resourceNameToUrl(
+      const StringView& resourceName) {
+    return nullptr;
+  }
+};
+
+// These stack trace ids are intended to be passed between debuggers and be
+// resolved later. This allows to track cross-debugger calls and step between
+// them if a single client connects to multiple debuggers.
+struct V8_EXPORT V8StackTraceId {
+  uintptr_t id;
+  std::pair<int64_t, int64_t> debugger_id;
+  bool should_pause = false;
+
+  V8StackTraceId();
+  V8StackTraceId(const V8StackTraceId&) = default;
+  V8StackTraceId(uintptr_t id, const std::pair<int64_t, int64_t> debugger_id);
+  V8StackTraceId(uintptr_t id, const std::pair<int64_t, int64_t> debugger_id,
+                 bool should_pause);
+  explicit V8StackTraceId(const StringView&);
+  V8StackTraceId& operator=(const V8StackTraceId&) = default;
+  V8StackTraceId& operator=(V8StackTraceId&&) noexcept = default;
+  ~V8StackTraceId() = default;
+
+  bool IsInvalid() const;
+  std::unique_ptr<StringBuffer> ToString();
+};
+
+class V8_EXPORT V8Inspector {
+ public:
+  static std::unique_ptr<V8Inspector> create(v8::Isolate*, V8InspectorClient*);
+  virtual ~V8Inspector() = default;
+
+  // Contexts instrumentation.
+  virtual void contextCreated(const V8ContextInfo&) = 0;
+  virtual void contextDestroyed(v8::Local<v8::Context>) = 0;
+  virtual void resetContextGroup(int contextGroupId) = 0;
+  virtual v8::MaybeLocal<v8::Context> contextById(int contextId) = 0;
+
+  // Various instrumentation.
+  virtual void idleStarted() = 0;
+  virtual void idleFinished() = 0;
+
+  // Async stack traces instrumentation.
+  virtual void asyncTaskScheduled(const StringView& taskName, void* task,
+                                  bool recurring) = 0;
+  virtual void asyncTaskCanceled(void* task) = 0;
+  virtual void asyncTaskStarted(void* task) = 0;
+  virtual void asyncTaskFinished(void* task) = 0;
+  virtual void allAsyncTasksCanceled() = 0;
+
+  virtual V8StackTraceId storeCurrentStackTrace(
+      const StringView& description) = 0;
+  virtual void externalAsyncTaskStarted(const V8StackTraceId& parent) = 0;
+  virtual void externalAsyncTaskFinished(const V8StackTraceId& parent) = 0;
+
+  // Exceptions instrumentation.
+  virtual unsigned exceptionThrown(
+      v8::Local<v8::Context>, const StringView& message,
+      v8::Local<v8::Value> exception, const StringView& detailedMessage,
+      const StringView& url, unsigned lineNumber, unsigned columnNumber,
+      std::unique_ptr<V8StackTrace>, int scriptId) = 0;
+  virtual void exceptionRevoked(v8::Local<v8::Context>, unsigned exceptionId,
+                                const StringView& message) = 0;
+
+  // Connection.
+  class V8_EXPORT Channel {
+   public:
+    virtual ~Channel() = default;
+    virtual void sendResponse(int callId,
+                              std::unique_ptr<StringBuffer> message) = 0;
+    virtual void sendNotification(std::unique_ptr<StringBuffer> message) = 0;
+    virtual void flushProtocolNotifications() = 0;
+  };
+  virtual std::unique_ptr<V8InspectorSession> connect(
+      int contextGroupId, Channel*, const StringView& state) = 0;
+
+  // API methods.
+  virtual std::unique_ptr<V8StackTrace> createStackTrace(
+      v8::Local<v8::StackTrace>) = 0;
+  virtual std::unique_ptr<V8StackTrace> captureStackTrace(bool fullStack) = 0;
+
+  // Performance counters.
+  class V8_EXPORT Counters : public std::enable_shared_from_this<Counters> {
+   public:
+    explicit Counters(v8::Isolate* isolate);
+    ~Counters();
+    const std::unordered_map<std::string, int>& getCountersMap() const {
+      return m_countersMap;
+    }
+
+   private:
+    static int* getCounterPtr(const char* name);
+
+    v8::Isolate* m_isolate;
+    std::unordered_map<std::string, int> m_countersMap;
+  };
+
+  virtual std::shared_ptr<Counters> enableCounters() = 0;
+};
+
+}  // namespace v8_inspector
+
+#endif  // V8_V8_INSPECTOR_H_

cocos2d-x/external/ios/include/v8/v8-internal.h

@@ -0,0 +1,390 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef INCLUDE_V8_INTERNAL_H_
+#define INCLUDE_V8_INTERNAL_H_
+
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+#include <type_traits>
+
+#include "v8-version.h"  // NOLINT(build/include)
+#include "v8config.h"    // NOLINT(build/include)
+
+namespace v8 {
+
+class Context;
+class Data;
+class Isolate;
+
+namespace internal {
+
+class Isolate;
+
+typedef uintptr_t Address;
+static const Address kNullAddress = 0;
+
+/**
+ * Configuration of tagging scheme.
+ */
+const int kApiSystemPointerSize = sizeof(void*);
+const int kApiDoubleSize = sizeof(double);
+const int kApiInt32Size = sizeof(int32_t);
+const int kApiInt64Size = sizeof(int64_t);
+
+// Tag information for HeapObject.
+const int kHeapObjectTag = 1;
+const int kWeakHeapObjectTag = 3;
+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 tagged_ptr_size>
+struct SmiTagging;
+
+constexpr intptr_t kIntptrAllBitsSet = intptr_t{-1};
+constexpr uintptr_t kUintptrAllBitsSet =
+    static_cast<uintptr_t>(kIntptrAllBitsSet);
+
+// Smi constants for systems where tagged pointer is a 32-bit value.
+template <>
+struct SmiTagging<4> {
+  enum { kSmiShiftSize = 0, kSmiValueSize = 31 };
+
+  static constexpr intptr_t kSmiMinValue =
+      static_cast<intptr_t>(kUintptrAllBitsSet << (kSmiValueSize - 1));
+  static constexpr intptr_t kSmiMaxValue = -(kSmiMinValue + 1);
+
+  V8_INLINE static int SmiToInt(const internal::Address value) {
+    int shift_bits = kSmiTagSize + kSmiShiftSize;
+    // Truncate and shift down (requires >> to be sign extending).
+    return static_cast<int32_t>(static_cast<uint32_t>(value)) >> shift_bits;
+  }
+  V8_INLINE static constexpr bool IsValidSmi(intptr_t value) {
+    // Is value in range [kSmiMinValue, kSmiMaxValue].
+    // Use unsigned operations in order to avoid undefined behaviour in case of
+    // signed integer overflow.
+    return (static_cast<uintptr_t>(value) -
+            static_cast<uintptr_t>(kSmiMinValue)) <=
+           (static_cast<uintptr_t>(kSmiMaxValue) -
+            static_cast<uintptr_t>(kSmiMinValue));
+  }
+};
+
+// Smi constants for systems where tagged pointer is a 64-bit value.
+template <>
+struct SmiTagging<8> {
+  enum { kSmiShiftSize = 31, kSmiValueSize = 32 };
+
+  static constexpr intptr_t kSmiMinValue =
+      static_cast<intptr_t>(kUintptrAllBitsSet << (kSmiValueSize - 1));
+  static constexpr intptr_t kSmiMaxValue = -(kSmiMinValue + 1);
+
+  V8_INLINE static int SmiToInt(const internal::Address value) {
+    int shift_bits = kSmiTagSize + kSmiShiftSize;
+    // Shift down and throw away top 32 bits.
+    return static_cast<int>(static_cast<intptr_t>(value) >> shift_bits);
+  }
+  V8_INLINE static constexpr bool IsValidSmi(intptr_t value) {
+    // To be representable as a long smi, the value must be a 32-bit integer.
+    return (value == static_cast<int32_t>(value));
+  }
+};
+
+#ifdef V8_COMPRESS_POINTERS
+static_assert(
+    kApiSystemPointerSize == kApiInt64Size,
+    "Pointer compression can be enabled only for 64-bit architectures");
+const int kApiTaggedSize = kApiInt32Size;
+#else
+const int kApiTaggedSize = kApiSystemPointerSize;
+#endif
+
+#ifdef V8_31BIT_SMIS_ON_64BIT_ARCH
+using PlatformSmiTagging = SmiTagging<kApiInt32Size>;
+#else
+using PlatformSmiTagging = SmiTagging<kApiTaggedSize>;
+#endif
+
+// TODO(ishell): Consinder adding kSmiShiftBits = kSmiShiftSize + kSmiTagSize
+// since it's used much more often than the inividual constants.
+const int kSmiShiftSize = PlatformSmiTagging::kSmiShiftSize;
+const int kSmiValueSize = PlatformSmiTagging::kSmiValueSize;
+const int kSmiMinValue = static_cast<int>(PlatformSmiTagging::kSmiMinValue);
+const int kSmiMaxValue = static_cast<int>(PlatformSmiTagging::kSmiMaxValue);
+constexpr bool SmiValuesAre31Bits() { return kSmiValueSize == 31; }
+constexpr bool SmiValuesAre32Bits() { return kSmiValueSize == 32; }
+
+V8_INLINE static constexpr internal::Address IntToSmi(int value) {
+  return (static_cast<Address>(value) << (kSmiTagSize + kSmiShiftSize)) |
+         kSmiTag;
+}
+
+/**
+ * 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 * kApiTaggedSize + kApiInt32Size;
+  static const int kStringResourceOffset =
+      1 * kApiTaggedSize + 2 * kApiInt32Size;
+
+  static const int kOddballKindOffset = 4 * kApiTaggedSize + kApiDoubleSize;
+  static const int kForeignAddressOffset = kApiTaggedSize;
+  static const int kJSObjectHeaderSize = 3 * kApiTaggedSize;
+  static const int kFixedArrayHeaderSize = 2 * kApiTaggedSize;
+  static const int kEmbedderDataArrayHeaderSize = 2 * kApiTaggedSize;
+  static const int kEmbedderDataSlotSize = kApiSystemPointerSize;
+  static const int kNativeContextEmbedderDataOffset = 6 * kApiTaggedSize;
+  static const int kFullStringRepresentationMask = 0x0f;
+  static const int kStringEncodingMask = 0x8;
+  static const int kExternalTwoByteRepresentationTag = 0x02;
+  static const int kExternalOneByteRepresentationTag = 0x0a;
+
+  static const uint32_t kNumIsolateDataSlots = 4;
+
+  // IsolateData layout guarantees.
+  static const int kIsolateEmbedderDataOffset = 0;
+  static const int kExternalMemoryOffset =
+      kNumIsolateDataSlots * kApiSystemPointerSize;
+  static const int kExternalMemoryLimitOffset =
+      kExternalMemoryOffset + kApiInt64Size;
+  static const int kExternalMemoryAtLastMarkCompactOffset =
+      kExternalMemoryLimitOffset + kApiInt64Size;
+  static const int kIsolateFastCCallCallerFpOffset =
+      kExternalMemoryAtLastMarkCompactOffset + kApiInt64Size;
+  static const int kIsolateFastCCallCallerPcOffset =
+      kIsolateFastCCallCallerFpOffset + kApiSystemPointerSize;
+  static const int kIsolateStackGuardOffset =
+      kIsolateFastCCallCallerPcOffset + kApiSystemPointerSize;
+  static const int kIsolateRootsOffset =
+      kIsolateStackGuardOffset + 7 * kApiSystemPointerSize;
+
+  static const int kUndefinedValueRootIndex = 4;
+  static const int kTheHoleValueRootIndex = 5;
+  static const int kNullValueRootIndex = 6;
+  static const int kTrueValueRootIndex = 7;
+  static const int kFalseValueRootIndex = 8;
+  static const int kEmptyStringRootIndex = 9;
+
+  static const int kNodeClassIdOffset = 1 * kApiSystemPointerSize;
+  static const int kNodeFlagsOffset = 1 * kApiSystemPointerSize + 3;
+  static const int kNodeStateMask = 0x7;
+  static const int kNodeStateIsWeakValue = 2;
+  static const int kNodeStateIsPendingValue = 3;
+
+  static const int kFirstNonstringType = 0x40;
+  static const int kOddballType = 0x43;
+  static const int kForeignType = 0x46;
+  static const int kJSSpecialApiObjectType = 0x410;
+  static const int kJSApiObjectType = 0x420;
+  static const int kJSObjectType = 0x421;
+
+  static const int kUndefinedOddballKind = 5;
+  static const int kNullOddballKind = 3;
+
+  // Constants used by PropertyCallbackInfo to check if we should throw when an
+  // error occurs.
+  static const int kThrowOnError = 0;
+  static const int kDontThrow = 1;
+  static const int kInferShouldThrowMode = 2;
+
+  // Soft limit for AdjustAmountofExternalAllocatedMemory. Trigger an
+  // incremental GC once the external memory reaches this limit.
+  static constexpr int kExternalAllocationSoftLimit = 64 * 1024 * 1024;
+
+  V8_EXPORT static void CheckInitializedImpl(v8::Isolate* isolate);
+  V8_INLINE static void CheckInitialized(v8::Isolate* isolate) {
+#ifdef V8_ENABLE_CHECKS
+    CheckInitializedImpl(isolate);
+#endif
+  }
+
+  V8_INLINE static bool HasHeapObjectTag(const internal::Address value) {
+    return (value & kHeapObjectTagMask) == static_cast<Address>(kHeapObjectTag);
+  }
+
+  V8_INLINE static int SmiValue(const internal::Address value) {
+    return PlatformSmiTagging::SmiToInt(value);
+  }
+
+  V8_INLINE static constexpr internal::Address IntToSmi(int value) {
+    return internal::IntToSmi(value);
+  }
+
+  V8_INLINE static constexpr bool IsValidSmi(intptr_t value) {
+    return PlatformSmiTagging::IsValidSmi(value);
+  }
+
+  V8_INLINE static int GetInstanceType(const internal::Address obj) {
+    typedef internal::Address A;
+    A map = ReadTaggedPointerField(obj, kHeapObjectMapOffset);
+    return ReadRawField<uint16_t>(map, kMapInstanceTypeOffset);
+  }
+
+  V8_INLINE static int GetOddballKind(const internal::Address obj) {
+    return SmiValue(ReadTaggedSignedField(obj, kOddballKindOffset));
+  }
+
+  V8_INLINE static bool IsExternalTwoByteString(int instance_type) {
+    int representation = (instance_type & kFullStringRepresentationMask);
+    return representation == kExternalTwoByteRepresentationTag;
+  }
+
+  V8_INLINE static uint8_t GetNodeFlag(internal::Address* obj, int shift) {
+    uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset;
+    return *addr & static_cast<uint8_t>(1U << shift);
+  }
+
+  V8_INLINE static void UpdateNodeFlag(internal::Address* obj, bool value,
+                                       int shift) {
+    uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset;
+    uint8_t mask = static_cast<uint8_t>(1U << shift);
+    *addr = static_cast<uint8_t>((*addr & ~mask) | (value << shift));
+  }
+
+  V8_INLINE static uint8_t GetNodeState(internal::Address* obj) {
+    uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset;
+    return *addr & kNodeStateMask;
+  }
+
+  V8_INLINE static void UpdateNodeState(internal::Address* obj, uint8_t value) {
+    uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset;
+    *addr = static_cast<uint8_t>((*addr & ~kNodeStateMask) | value);
+  }
+
+  V8_INLINE static void SetEmbedderData(v8::Isolate* isolate, uint32_t slot,
+                                        void* data) {
+    internal::Address addr = reinterpret_cast<internal::Address>(isolate) +
+                             kIsolateEmbedderDataOffset +
+                             slot * kApiSystemPointerSize;
+    *reinterpret_cast<void**>(addr) = data;
+  }
+
+  V8_INLINE static void* GetEmbedderData(const v8::Isolate* isolate,
+                                         uint32_t slot) {
+    internal::Address addr = reinterpret_cast<internal::Address>(isolate) +
+                             kIsolateEmbedderDataOffset +
+                             slot * kApiSystemPointerSize;
+    return *reinterpret_cast<void* const*>(addr);
+  }
+
+  V8_INLINE static internal::Address* GetRoot(v8::Isolate* isolate, int index) {
+    internal::Address addr = reinterpret_cast<internal::Address>(isolate) +
+                             kIsolateRootsOffset +
+                             index * kApiSystemPointerSize;
+    return reinterpret_cast<internal::Address*>(addr);
+  }
+
+  template <typename T>
+  V8_INLINE static T ReadRawField(internal::Address heap_object_ptr,
+                                  int offset) {
+    internal::Address addr = heap_object_ptr + offset - kHeapObjectTag;
+#ifdef V8_COMPRESS_POINTERS
+    if (sizeof(T) > kApiTaggedSize) {
+      // TODO(ishell, v8:8875): When pointer compression is enabled 8-byte size
+      // fields (external pointers, doubles and BigInt data) are only
+      // kTaggedSize aligned so we have to use unaligned pointer friendly way of
+      // accessing them in order to avoid undefined behavior in C++ code.
+      T r;
+      memcpy(&r, reinterpret_cast<void*>(addr), sizeof(T));
+      return r;
+    }
+#endif
+    return *reinterpret_cast<const T*>(addr);
+  }
+
+  V8_INLINE static internal::Address ReadTaggedPointerField(
+      internal::Address heap_object_ptr, int offset) {
+#ifdef V8_COMPRESS_POINTERS
+    int32_t value = ReadRawField<int32_t>(heap_object_ptr, offset);
+    internal::Address root = GetRootFromOnHeapAddress(heap_object_ptr);
+    return root + static_cast<internal::Address>(static_cast<intptr_t>(value));
+#else
+    return ReadRawField<internal::Address>(heap_object_ptr, offset);
+#endif
+  }
+
+  V8_INLINE static internal::Address ReadTaggedSignedField(
+      internal::Address heap_object_ptr, int offset) {
+#ifdef V8_COMPRESS_POINTERS
+    int32_t value = ReadRawField<int32_t>(heap_object_ptr, offset);
+    return static_cast<internal::Address>(static_cast<intptr_t>(value));
+#else
+    return ReadRawField<internal::Address>(heap_object_ptr, offset);
+#endif
+  }
+
+#ifdef V8_COMPRESS_POINTERS
+  // See v8:7703 or src/ptr-compr.* for details about pointer compression.
+  static constexpr size_t kPtrComprHeapReservationSize = size_t{1} << 32;
+  static constexpr size_t kPtrComprIsolateRootAlignment = size_t{1} << 32;
+
+  V8_INLINE static internal::Address GetRootFromOnHeapAddress(
+      internal::Address addr) {
+    return addr & -static_cast<intptr_t>(kPtrComprIsolateRootAlignment);
+  }
+
+  V8_INLINE static internal::Address DecompressTaggedAnyField(
+      internal::Address heap_object_ptr, int32_t value) {
+    internal::Address root_mask = static_cast<internal::Address>(
+        -static_cast<intptr_t>(value & kSmiTagMask));
+    internal::Address root_or_zero =
+        root_mask & GetRootFromOnHeapAddress(heap_object_ptr);
+    return root_or_zero +
+           static_cast<internal::Address>(static_cast<intptr_t>(value));
+  }
+#endif  // V8_COMPRESS_POINTERS
+};
+
+// Only perform cast check for types derived from v8::Data since
+// other types do not implement the Cast method.
+template <bool PerformCheck>
+struct CastCheck {
+  template <class T>
+  static void Perform(T* data);
+};
+
+template <>
+template <class T>
+void CastCheck<true>::Perform(T* data) {
+  T::Cast(data);
+}
+
+template <>
+template <class T>
+void CastCheck<false>::Perform(T* data) {}
+
+template <class T>
+V8_INLINE void PerformCastCheck(T* data) {
+  CastCheck<std::is_base_of<Data, T>::value>::Perform(data);
+}
+
+// {obj} must be the raw tagged pointer representation of a HeapObject
+// that's guaranteed to never be in ReadOnlySpace.
+V8_EXPORT internal::Isolate* IsolateFromNeverReadOnlySpaceObject(Address obj);
+
+// Returns if we need to throw when an error occurs. This infers the language
+// mode based on the current context and the closure. This returns true if the
+// language mode is strict.
+V8_EXPORT bool ShouldThrowOnError(v8::internal::Isolate* isolate);
+
+// A base class for backing stores, which is needed due to vagaries of
+// how static casts work with std::shared_ptr.
+class BackingStoreBase {};
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // INCLUDE_V8_INTERNAL_H_

cocos2d-x/external/ios/include/v8/v8-platform.h

@@ -0,0 +1,448 @@
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_V8_PLATFORM_H_
+#define V8_V8_PLATFORM_H_
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>  // For abort.
+#include <memory>
+#include <string>
+
+#include "v8config.h"  // NOLINT(build/include)
+
+namespace v8 {
+
+class Isolate;
+
+/**
+ * A Task represents a unit of work.
+ */
+class Task {
+ public:
+  virtual ~Task() = default;
+
+  virtual void Run() = 0;
+};
+
+/**
+ * An IdleTask represents a unit of work to be performed in idle time.
+ * The Run method is invoked with an argument that specifies the deadline in
+ * seconds returned by MonotonicallyIncreasingTime().
+ * The idle task is expected to complete by this deadline.
+ */
+class IdleTask {
+ public:
+  virtual ~IdleTask() = default;
+  virtual void Run(double deadline_in_seconds) = 0;
+};
+
+/**
+ * A TaskRunner allows scheduling of tasks. The TaskRunner may still be used to
+ * post tasks after the isolate gets destructed, but these tasks may not get
+ * executed anymore. All tasks posted to a given TaskRunner will be invoked in
+ * sequence. Tasks can be posted from any thread.
+ */
+class TaskRunner {
+ public:
+  /**
+   * Schedules a task to be invoked by this TaskRunner. The TaskRunner
+   * implementation takes ownership of |task|.
+   */
+  virtual void PostTask(std::unique_ptr<Task> task) = 0;
+
+  /**
+   * Schedules a task to be invoked by this TaskRunner. The TaskRunner
+   * implementation takes ownership of |task|. The |task| cannot be nested
+   * within other task executions.
+   *
+   * Requires that |TaskRunner::NonNestableTasksEnabled()| is true.
+   */
+  virtual void PostNonNestableTask(std::unique_ptr<Task> task) {}
+
+  /**
+   * Schedules a task to be invoked by this TaskRunner. The task is scheduled
+   * after the given number of seconds |delay_in_seconds|. The TaskRunner
+   * implementation takes ownership of |task|.
+   */
+  virtual void PostDelayedTask(std::unique_ptr<Task> task,
+                               double delay_in_seconds) = 0;
+
+  /**
+   * Schedules a task to be invoked by this TaskRunner. The task is scheduled
+   * after the given number of seconds |delay_in_seconds|. The TaskRunner
+   * implementation takes ownership of |task|. The |task| cannot be nested
+   * within other task executions.
+   *
+   * Requires that |TaskRunner::NonNestableDelayedTasksEnabled()| is true.
+   */
+  virtual void PostNonNestableDelayedTask(std::unique_ptr<Task> task,
+                                          double delay_in_seconds) {}
+
+  /**
+   * Schedules an idle task to be invoked by this TaskRunner. The task is
+   * scheduled when the embedder is idle. Requires that
+   * |TaskRunner::IdleTasksEnabled()| is true. Idle tasks may be reordered
+   * relative to other task types and may be starved for an arbitrarily long
+   * time if no idle time is available. The TaskRunner implementation takes
+   * ownership of |task|.
+   */
+  virtual void PostIdleTask(std::unique_ptr<IdleTask> task) = 0;
+
+  /**
+   * Returns true if idle tasks are enabled for this TaskRunner.
+   */
+  virtual bool IdleTasksEnabled() = 0;
+
+  /**
+   * Returns true if non-nestable tasks are enabled for this TaskRunner.
+   */
+  virtual bool NonNestableTasksEnabled() const { return false; }
+
+  /**
+   * Returns true if non-nestable delayed tasks are enabled for this TaskRunner.
+   */
+  virtual bool NonNestableDelayedTasksEnabled() const { return false; }
+
+  TaskRunner() = default;
+  virtual ~TaskRunner() = default;
+
+  TaskRunner(const TaskRunner&) = delete;
+  TaskRunner& operator=(const TaskRunner&) = delete;
+};
+
+/**
+ * The interface represents complex arguments to trace events.
+ */
+class ConvertableToTraceFormat {
+ public:
+  virtual ~ConvertableToTraceFormat() = default;
+
+  /**
+   * Append the class info to the provided |out| string. The appended
+   * data must be a valid JSON object. Strings must be properly quoted, and
+   * escaped. There is no processing applied to the content after it is
+   * appended.
+   */
+  virtual void AppendAsTraceFormat(std::string* out) const = 0;
+};
+
+/**
+ * V8 Tracing controller.
+ *
+ * Can be implemented by an embedder to record trace events from V8.
+ */
+class TracingController {
+ public:
+  virtual ~TracingController() = default;
+
+  /**
+   * Called by TRACE_EVENT* macros, don't call this directly.
+   * The name parameter is a category group for example:
+   * TRACE_EVENT0("v8,parse", "V8.Parse")
+   * The pointer returned points to a value with zero or more of the bits
+   * defined in CategoryGroupEnabledFlags.
+   **/
+  virtual const uint8_t* GetCategoryGroupEnabled(const char* name) {
+    static uint8_t no = 0;
+    return &no;
+  }
+
+  /**
+   * Adds a trace event to the platform tracing system. These function calls are
+   * usually the result of a TRACE_* macro from trace_event_common.h when
+   * tracing and the category of the particular trace are enabled. It is not
+   * advisable to call these functions on their own; they are really only meant
+   * to be used by the trace macros. The returned handle can be used by
+   * UpdateTraceEventDuration to update the duration of COMPLETE events.
+   */
+  virtual uint64_t AddTraceEvent(
+      char phase, const uint8_t* category_enabled_flag, const char* name,
+      const char* scope, uint64_t id, uint64_t bind_id, int32_t num_args,
+      const char** arg_names, const uint8_t* arg_types,
+      const uint64_t* arg_values,
+      std::unique_ptr<ConvertableToTraceFormat>* arg_convertables,
+      unsigned int flags) {
+    return 0;
+  }
+  virtual uint64_t AddTraceEventWithTimestamp(
+      char phase, const uint8_t* category_enabled_flag, const char* name,
+      const char* scope, uint64_t id, uint64_t bind_id, int32_t num_args,
+      const char** arg_names, const uint8_t* arg_types,
+      const uint64_t* arg_values,
+      std::unique_ptr<ConvertableToTraceFormat>* arg_convertables,
+      unsigned int flags, int64_t timestamp) {
+    return 0;
+  }
+
+  /**
+   * Sets the duration field of a COMPLETE trace event. It must be called with
+   * the handle returned from AddTraceEvent().
+   **/
+  virtual void UpdateTraceEventDuration(const uint8_t* category_enabled_flag,
+                                        const char* name, uint64_t handle) {}
+
+  class TraceStateObserver {
+   public:
+    virtual ~TraceStateObserver() = default;
+    virtual void OnTraceEnabled() = 0;
+    virtual void OnTraceDisabled() = 0;
+  };
+
+  /** Adds tracing state change observer. */
+  virtual void AddTraceStateObserver(TraceStateObserver*) {}
+
+  /** Removes tracing state change observer. */
+  virtual void RemoveTraceStateObserver(TraceStateObserver*) {}
+};
+
+/**
+ * A V8 memory page allocator.
+ *
+ * Can be implemented by an embedder to manage large host OS allocations.
+ */
+class PageAllocator {
+ public:
+  virtual ~PageAllocator() = default;
+
+  /**
+   * Gets the page granularity for AllocatePages and FreePages. Addresses and
+   * lengths for those calls should be multiples of AllocatePageSize().
+   */
+  virtual size_t AllocatePageSize() = 0;
+
+  /**
+   * Gets the page granularity for SetPermissions and ReleasePages. Addresses
+   * and lengths for those calls should be multiples of CommitPageSize().
+   */
+  virtual size_t CommitPageSize() = 0;
+
+  /**
+   * Sets the random seed so that GetRandomMmapAddr() will generate repeatable
+   * sequences of random mmap addresses.
+   */
+  virtual void SetRandomMmapSeed(int64_t seed) = 0;
+
+  /**
+   * Returns a randomized address, suitable for memory allocation under ASLR.
+   * The address will be aligned to AllocatePageSize.
+   */
+  virtual void* GetRandomMmapAddr() = 0;
+
+  /**
+   * Memory permissions.
+   */
+  enum Permission {
+    kNoAccess,
+    kRead,
+    kReadWrite,
+    // TODO(hpayer): Remove this flag. Memory should never be rwx.
+    kReadWriteExecute,
+    kReadExecute
+  };
+
+  /**
+   * Allocates memory in range with the given alignment and permission.
+   */
+  virtual void* AllocatePages(void* address, size_t length, size_t alignment,
+                              Permission permissions) = 0;
+
+  /**
+   * Frees memory in a range that was allocated by a call to AllocatePages.
+   */
+  virtual bool FreePages(void* address, size_t length) = 0;
+
+  /**
+   * Releases memory in a range that was allocated by a call to AllocatePages.
+   */
+  virtual bool ReleasePages(void* address, size_t length,
+                            size_t new_length) = 0;
+
+  /**
+   * Sets permissions on pages in an allocated range.
+   */
+  virtual bool SetPermissions(void* address, size_t length,
+                              Permission permissions) = 0;
+
+  /**
+   * Frees memory in the given [address, address + size) range. address and size
+   * should be operating system page-aligned. The next write to this
+   * memory area brings the memory transparently back.
+   */
+  virtual bool DiscardSystemPages(void* address, size_t size) { return true; }
+};
+
+/**
+ * V8 Platform abstraction layer.
+ *
+ * The embedder has to provide an implementation of this interface before
+ * initializing the rest of V8.
+ */
+class Platform {
+ public:
+  virtual ~Platform() = default;
+
+  /**
+   * Allows the embedder to manage memory page allocations.
+   */
+  virtual PageAllocator* GetPageAllocator() {
+    // TODO(bbudge) Make this abstract after all embedders implement this.
+    return nullptr;
+  }
+
+  /**
+   * Enables the embedder to respond in cases where V8 can't allocate large
+   * blocks of memory. V8 retries the failed allocation once after calling this
+   * method. On success, execution continues; otherwise V8 exits with a fatal
+   * error.
+   * Embedder overrides of this function must NOT call back into V8.
+   */
+  virtual void OnCriticalMemoryPressure() {
+    // TODO(bbudge) Remove this when embedders override the following method.
+    // See crbug.com/634547.
+  }
+
+  /**
+   * Enables the embedder to respond in cases where V8 can't allocate large
+   * memory regions. The |length| parameter is the amount of memory needed.
+   * Returns true if memory is now available. Returns false if no memory could
+   * be made available. V8 will retry allocations until this method returns
+   * false.
+   *
+   * Embedder overrides of this function must NOT call back into V8.
+   */
+  virtual bool OnCriticalMemoryPressure(size_t length) { return false; }
+
+  /**
+   * Gets the number of worker threads used by
+   * Call(BlockingTask)OnWorkerThread(). This can be used to estimate the number
+   * of tasks a work package should be split into. A return value of 0 means
+   * that there are no worker threads available. Note that a value of 0 won't
+   * prohibit V8 from posting tasks using |CallOnWorkerThread|.
+   */
+  virtual int NumberOfWorkerThreads() = 0;
+
+  /**
+   * Returns a TaskRunner which can be used to post a task on the foreground.
+   * This function should only be called from a foreground thread.
+   */
+  virtual std::shared_ptr<v8::TaskRunner> GetForegroundTaskRunner(
+      Isolate* isolate) = 0;
+
+  /**
+   * Schedules a task to be invoked on a worker thread.
+   */
+  virtual void CallOnWorkerThread(std::unique_ptr<Task> task) = 0;
+
+  /**
+   * Schedules a task that blocks the main thread to be invoked with
+   * high-priority on a worker thread.
+   */
+  virtual void CallBlockingTaskOnWorkerThread(std::unique_ptr<Task> task) {
+    // Embedders may optionally override this to process these tasks in a high
+    // priority pool.
+    CallOnWorkerThread(std::move(task));
+  }
+
+  /**
+   * Schedules a task to be invoked with low-priority on a worker thread.
+   */
+  virtual void CallLowPriorityTaskOnWorkerThread(std::unique_ptr<Task> task) {
+    // Embedders may optionally override this to process these tasks in a low
+    // priority pool.
+    CallOnWorkerThread(std::move(task));
+  }
+
+  /**
+   * Schedules a task to be invoked on a worker thread after |delay_in_seconds|
+   * expires.
+   */
+  virtual void CallDelayedOnWorkerThread(std::unique_ptr<Task> task,
+                                         double delay_in_seconds) = 0;
+
+  /**
+   * Schedules a task to be invoked on a foreground thread wrt a specific
+   * |isolate|. Tasks posted for the same isolate should be execute in order of
+   * scheduling. The definition of "foreground" is opaque to V8.
+   */
+  V8_DEPRECATED("Use a taskrunner acquired by GetForegroundTaskRunner instead.")
+  virtual void CallOnForegroundThread(Isolate* isolate, Task* task) { abort(); }
+
+  /**
+   * Schedules a task to be invoked on a foreground thread wrt a specific
+   * |isolate| after the given number of seconds |delay_in_seconds|.
+   * Tasks posted for the same isolate should be execute in order of
+   * scheduling. The definition of "foreground" is opaque to V8.
+   */
+  V8_DEPRECATED("Use a taskrunner acquired by GetForegroundTaskRunner instead.")
+  virtual void CallDelayedOnForegroundThread(Isolate* isolate, Task* task,
+                                             double delay_in_seconds) {
+    abort();
+  }
+
+  /**
+   * Schedules a task to be invoked on a foreground thread wrt a specific
+   * |isolate| when the embedder is idle.
+   * Requires that SupportsIdleTasks(isolate) is true.
+   * Idle tasks may be reordered relative to other task types and may be
+   * starved for an arbitrarily long time if no idle time is available.
+   * The definition of "foreground" is opaque to V8.
+   */
+  V8_DEPRECATED("Use a taskrunner acquired by GetForegroundTaskRunner instead.")
+  virtual void CallIdleOnForegroundThread(Isolate* isolate, IdleTask* task) {
+    abort();
+  }
+
+  /**
+   * Returns true if idle tasks are enabled for the given |isolate|.
+   */
+  virtual bool IdleTasksEnabled(Isolate* isolate) { return false; }
+
+  /**
+   * Monotonically increasing time in seconds from an arbitrary fixed point in
+   * the past. This function is expected to return at least
+   * millisecond-precision values. For this reason,
+   * it is recommended that the fixed point be no further in the past than
+   * the epoch.
+   **/
+  virtual double MonotonicallyIncreasingTime() = 0;
+
+  /**
+   * Current wall-clock time in milliseconds since epoch.
+   * This function is expected to return at least millisecond-precision values.
+   */
+  virtual double CurrentClockTimeMillis() = 0;
+
+  typedef void (*StackTracePrinter)();
+
+  /**
+   * Returns a function pointer that print a stack trace of the current stack
+   * on invocation. Disables printing of the stack trace if nullptr.
+   */
+  virtual StackTracePrinter GetStackTracePrinter() { return nullptr; }
+
+  /**
+   * Returns an instance of a v8::TracingController. This must be non-nullptr.
+   */
+  virtual TracingController* GetTracingController() = 0;
+
+  /**
+   * Tells the embedder to generate and upload a crashdump during an unexpected
+   * but non-critical scenario.
+   */
+  virtual void DumpWithoutCrashing() {}
+
+ protected:
+  /**
+   * Default implementation of current wall-clock time in milliseconds
+   * since epoch. Useful for implementing |CurrentClockTimeMillis| if
+   * nothing special needed.
+   */
+  V8_EXPORT static double SystemClockTimeMillis();
+};
+
+}  // namespace v8
+
+#endif  // V8_V8_PLATFORM_H_

cocos2d-x/external/ios/include/v8/v8-testing.h

@@ -0,0 +1,50 @@
+// Copyright 2010 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_V8_TEST_H_
+#define V8_V8_TEST_H_
+
+#include "v8.h"  // NOLINT(build/include)
+
+/**
+ * Testing support for the V8 JavaScript engine.
+ */
+namespace v8 {
+class V8_EXPORT Testing {
+ public:
+  enum V8_DEPRECATED("Don't use this (d8-specific testing logic).") StressType {
+    kStressTypeOpt,
+    kStressTypeDeopt
+  };
+
+  /**
+   * Set the type of stressing to do. The default if not set is kStressTypeOpt.
+   */
+  V8_DEPRECATED("Don't use this (d8-specific testing logic).")
+  static void SetStressRunType(StressType type);
+
+  /**
+   * Get the number of runs of a given test that is required to get the full
+   * stress coverage.
+   */
+  V8_DEPRECATED("Don't use this (d8-specific testing logic).")
+  static int GetStressRuns();
+
+  /**
+   * Indicate the number of the run which is about to start. The value of run
+   * should be between 0 and one less than the result from GetStressRuns()
+   */
+  V8_DEPRECATED("Don't use this (d8-specific testing logic).")
+  static void PrepareStressRun(int run);
+
+  /**
+   * Force deoptimization of all functions.
+   */
+  V8_DEPRECATED("Don't use this (d8-specific testing logic).")
+  static void DeoptimizeAll(Isolate* isolate);
+};
+
+}  // namespace v8
+
+#endif  // V8_V8_TEST_H_

cocos2d-x/external/ios/include/v8/v8-util.h

@@ -0,0 +1,652 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_UTIL_H_
+#define V8_UTIL_H_
+
+#include "v8.h"  // NOLINT(build/include)
+#include <assert.h>
+#include <map>
+#include <vector>
+
+/**
+ * Support for Persistent containers.
+ *
+ * C++11 embedders can use STL containers with Global values,
+ * but pre-C++11 does not support the required move semantic and hence
+ * may want these container classes.
+ */
+namespace v8 {
+
+typedef uintptr_t PersistentContainerValue;
+static const uintptr_t kPersistentContainerNotFound = 0;
+enum PersistentContainerCallbackType {
+  kNotWeak,
+  // These correspond to v8::WeakCallbackType
+  kWeakWithParameter,
+  kWeakWithInternalFields
+};
+
+/**
+ * A default trait implementation for PersistentValueMap which uses std::map
+ * as a backing map.
+ *
+ * Users will have to implement their own weak callbacks & dispose traits.
+ */
+template<typename K, typename V>
+class StdMapTraits {
+ public:
+  // STL map & related:
+  typedef std::map<K, PersistentContainerValue> Impl;
+  typedef typename Impl::iterator Iterator;
+
+  static bool Empty(Impl* impl) { return impl->empty(); }
+  static size_t Size(Impl* impl) { return impl->size(); }
+  static void Swap(Impl& a, Impl& b) { std::swap(a, b); }  // NOLINT
+  static Iterator Begin(Impl* impl) { return impl->begin(); }
+  static Iterator End(Impl* impl) { return impl->end(); }
+  static K Key(Iterator it) { return it->first; }
+  static PersistentContainerValue Value(Iterator it) { return it->second; }
+  static PersistentContainerValue Set(Impl* impl, K key,
+      PersistentContainerValue value) {
+    std::pair<Iterator, bool> res = impl->insert(std::make_pair(key, value));
+    PersistentContainerValue old_value = kPersistentContainerNotFound;
+    if (!res.second) {
+      old_value = res.first->second;
+      res.first->second = value;
+    }
+    return old_value;
+  }
+  static PersistentContainerValue Get(Impl* impl, K key) {
+    Iterator it = impl->find(key);
+    if (it == impl->end()) return kPersistentContainerNotFound;
+    return it->second;
+  }
+  static PersistentContainerValue Remove(Impl* impl, K key) {
+    Iterator it = impl->find(key);
+    if (it == impl->end()) return kPersistentContainerNotFound;
+    PersistentContainerValue value = it->second;
+    impl->erase(it);
+    return value;
+  }
+};
+
+
+/**
+ * A default trait implementation for PersistentValueMap, which inherits
+ * a std:map backing map from StdMapTraits and holds non-weak persistent
+ * objects and has no special Dispose handling.
+ *
+ * You should not derive from this class, since MapType depends on the
+ * surrounding class, and hence a subclass cannot simply inherit the methods.
+ */
+template<typename K, typename V>
+class DefaultPersistentValueMapTraits : public StdMapTraits<K, V> {
+ public:
+  // Weak callback & friends:
+  static const PersistentContainerCallbackType kCallbackType = kNotWeak;
+  typedef PersistentValueMap<K, V, DefaultPersistentValueMapTraits<K, V> >
+      MapType;
+  typedef void WeakCallbackDataType;
+
+  static WeakCallbackDataType* WeakCallbackParameter(
+      MapType* map, const K& key, Local<V> value) {
+    return nullptr;
+  }
+  static MapType* MapFromWeakCallbackInfo(
+      const WeakCallbackInfo<WeakCallbackDataType>& data) {
+    return nullptr;
+  }
+  static K KeyFromWeakCallbackInfo(
+      const WeakCallbackInfo<WeakCallbackDataType>& data) {
+    return K();
+  }
+  static void DisposeCallbackData(WeakCallbackDataType* data) { }
+  static void Dispose(Isolate* isolate, Global<V> value, K key) {}
+};
+
+
+template <typename K, typename V>
+class DefaultGlobalMapTraits : public StdMapTraits<K, V> {
+ private:
+  template <typename T>
+  struct RemovePointer;
+
+ public:
+  // Weak callback & friends:
+  static const PersistentContainerCallbackType kCallbackType = kNotWeak;
+  typedef GlobalValueMap<K, V, DefaultGlobalMapTraits<K, V> > MapType;
+  typedef void WeakCallbackDataType;
+
+  static WeakCallbackDataType* WeakCallbackParameter(MapType* map, const K& key,
+                                                     Local<V> value) {
+    return nullptr;
+  }
+  static MapType* MapFromWeakCallbackInfo(
+      const WeakCallbackInfo<WeakCallbackDataType>& data) {
+    return nullptr;
+  }
+  static K KeyFromWeakCallbackInfo(
+      const WeakCallbackInfo<WeakCallbackDataType>& data) {
+    return K();
+  }
+  static void DisposeCallbackData(WeakCallbackDataType* data) {}
+  static void OnWeakCallback(
+      const WeakCallbackInfo<WeakCallbackDataType>& data) {}
+  static void Dispose(Isolate* isolate, Global<V> value, K key) {}
+  // This is a second pass callback, so SetSecondPassCallback cannot be called.
+  static void DisposeWeak(const WeakCallbackInfo<WeakCallbackDataType>& data) {}
+
+ private:
+  template <typename T>
+  struct RemovePointer<T*> {
+    typedef T Type;
+  };
+};
+
+
+/**
+ * A map wrapper that allows using Global as a mapped value.
+ * C++11 embedders don't need this class, as they can use Global
+ * directly in std containers.
+ *
+ * The map relies on a backing map, whose type and accessors are described
+ * by the Traits class. The backing map will handle values of type
+ * PersistentContainerValue, with all conversion into and out of V8
+ * handles being transparently handled by this class.
+ */
+template <typename K, typename V, typename Traits>
+class PersistentValueMapBase {
+ public:
+  Isolate* GetIsolate() { return isolate_; }
+
+  /**
+   * Return size of the map.
+   */
+  size_t Size() { return Traits::Size(&impl_); }
+
+  /**
+   * Return whether the map holds weak persistents.
+   */
+  bool IsWeak() { return Traits::kCallbackType != kNotWeak; }
+
+  /**
+   * Get value stored in map.
+   */
+  Local<V> Get(const K& key) {
+    return Local<V>::New(isolate_, FromVal(Traits::Get(&impl_, key)));
+  }
+
+  /**
+   * Check whether a value is contained in the map.
+   */
+  bool Contains(const K& key) {
+    return Traits::Get(&impl_, key) != kPersistentContainerNotFound;
+  }
+
+  /**
+   * Get value stored in map and set it in returnValue.
+   * Return true if a value was found.
+   */
+  bool SetReturnValue(const K& key,
+      ReturnValue<Value> returnValue) {
+    return SetReturnValueFromVal(&returnValue, Traits::Get(&impl_, key));
+  }
+
+  /**
+   * Return value for key and remove it from the map.
+   */
+  Global<V> Remove(const K& key) {
+    return Release(Traits::Remove(&impl_, key)).Pass();
+  }
+
+  /**
+  * Traverses the map repeatedly,
+  * in case side effects of disposal cause insertions.
+  **/
+  void Clear() {
+    typedef typename Traits::Iterator It;
+    HandleScope handle_scope(isolate_);
+    // TODO(dcarney): figure out if this swap and loop is necessary.
+    while (!Traits::Empty(&impl_)) {
+      typename Traits::Impl impl;
+      Traits::Swap(impl_, impl);
+      for (It i = Traits::Begin(&impl); i != Traits::End(&impl); ++i) {
+        Traits::Dispose(isolate_, Release(Traits::Value(i)).Pass(),
+                        Traits::Key(i));
+      }
+    }
+  }
+
+  /**
+   * Helper class for GetReference/SetWithReference. Do not use outside
+   * that context.
+   */
+  class PersistentValueReference {
+   public:
+    PersistentValueReference() : value_(kPersistentContainerNotFound) { }
+    PersistentValueReference(const PersistentValueReference& other)
+        : value_(other.value_) { }
+
+    Local<V> NewLocal(Isolate* isolate) const {
+      return Local<V>::New(isolate, FromVal(value_));
+    }
+    bool IsEmpty() const {
+      return value_ == kPersistentContainerNotFound;
+    }
+    template<typename T>
+    bool SetReturnValue(ReturnValue<T> returnValue) {
+      return SetReturnValueFromVal(&returnValue, value_);
+    }
+    void Reset() {
+      value_ = kPersistentContainerNotFound;
+    }
+    void operator=(const PersistentValueReference& other) {
+      value_ = other.value_;
+    }
+
+   private:
+    friend class PersistentValueMapBase;
+    friend class PersistentValueMap<K, V, Traits>;
+    friend class GlobalValueMap<K, V, Traits>;
+
+    explicit PersistentValueReference(PersistentContainerValue value)
+        : value_(value) { }
+
+    void operator=(PersistentContainerValue value) {
+      value_ = value;
+    }
+
+    PersistentContainerValue value_;
+  };
+
+  /**
+   * Get a reference to a map value. This enables fast, repeated access
+   * to a value stored in the map while the map remains unchanged.
+   *
+   * Careful: This is potentially unsafe, so please use with care.
+   * The value will become invalid if the value for this key changes
+   * in the underlying map, as a result of Set or Remove for the same
+   * key; as a result of the weak callback for the same key; or as a
+   * result of calling Clear() or destruction of the map.
+   */
+  PersistentValueReference GetReference(const K& key) {
+    return PersistentValueReference(Traits::Get(&impl_, key));
+  }
+
+ protected:
+  explicit PersistentValueMapBase(Isolate* isolate)
+      : isolate_(isolate), label_(nullptr) {}
+  PersistentValueMapBase(Isolate* isolate, const char* label)
+      : isolate_(isolate), label_(label) {}
+
+  ~PersistentValueMapBase() { Clear(); }
+
+  Isolate* isolate() { return isolate_; }
+  typename Traits::Impl* impl() { return &impl_; }
+
+  static V* FromVal(PersistentContainerValue v) {
+    return reinterpret_cast<V*>(v);
+  }
+
+  static PersistentContainerValue ClearAndLeak(Global<V>* persistent) {
+    V* v = persistent->val_;
+    persistent->val_ = nullptr;
+    return reinterpret_cast<PersistentContainerValue>(v);
+  }
+
+  static PersistentContainerValue Leak(Global<V>* persistent) {
+    return reinterpret_cast<PersistentContainerValue>(persistent->val_);
+  }
+
+  /**
+   * Return a container value as Global and make sure the weak
+   * callback is properly disposed of. All remove functionality should go
+   * through this.
+   */
+  static Global<V> Release(PersistentContainerValue v) {
+    Global<V> p;
+    p.val_ = FromVal(v);
+    if (Traits::kCallbackType != kNotWeak && p.IsWeak()) {
+      Traits::DisposeCallbackData(
+          p.template ClearWeak<typename Traits::WeakCallbackDataType>());
+    }
+    return p.Pass();
+  }
+
+  void RemoveWeak(const K& key) {
+    Global<V> p;
+    p.val_ = FromVal(Traits::Remove(&impl_, key));
+    p.Reset();
+  }
+
+  void AnnotateStrongRetainer(Global<V>* persistent) {
+    persistent->AnnotateStrongRetainer(label_);
+  }
+
+ private:
+  PersistentValueMapBase(PersistentValueMapBase&);
+  void operator=(PersistentValueMapBase&);
+
+  static bool SetReturnValueFromVal(ReturnValue<Value>* returnValue,
+                                    PersistentContainerValue value) {
+    bool hasValue = value != kPersistentContainerNotFound;
+    if (hasValue) {
+      returnValue->SetInternal(
+          *reinterpret_cast<internal::Address*>(FromVal(value)));
+    }
+    return hasValue;
+  }
+
+  Isolate* isolate_;
+  typename Traits::Impl impl_;
+  const char* label_;
+};
+
+template <typename K, typename V, typename Traits>
+class PersistentValueMap : public PersistentValueMapBase<K, V, Traits> {
+ public:
+  explicit PersistentValueMap(Isolate* isolate)
+      : PersistentValueMapBase<K, V, Traits>(isolate) {}
+  PersistentValueMap(Isolate* isolate, const char* label)
+      : PersistentValueMapBase<K, V, Traits>(isolate, label) {}
+
+  typedef
+      typename PersistentValueMapBase<K, V, Traits>::PersistentValueReference
+          PersistentValueReference;
+
+  /**
+   * Put value into map. Depending on Traits::kIsWeak, the value will be held
+   * by the map strongly or weakly.
+   * Returns old value as Global.
+   */
+  Global<V> Set(const K& key, Local<V> value) {
+    Global<V> persistent(this->isolate(), value);
+    return SetUnique(key, &persistent);
+  }
+
+  /**
+   * Put value into map, like Set(const K&, Local<V>).
+   */
+  Global<V> Set(const K& key, Global<V> value) {
+    return SetUnique(key, &value);
+  }
+
+  /**
+   * Put the value into the map, and set the 'weak' callback when demanded
+   * by the Traits class.
+   */
+  Global<V> SetUnique(const K& key, Global<V>* persistent) {
+    if (Traits::kCallbackType == kNotWeak) {
+      this->AnnotateStrongRetainer(persistent);
+    } else {
+      WeakCallbackType callback_type =
+          Traits::kCallbackType == kWeakWithInternalFields
+              ? WeakCallbackType::kInternalFields
+              : WeakCallbackType::kParameter;
+      Local<V> value(Local<V>::New(this->isolate(), *persistent));
+      persistent->template SetWeak<typename Traits::WeakCallbackDataType>(
+          Traits::WeakCallbackParameter(this, key, value), WeakCallback,
+          callback_type);
+    }
+    PersistentContainerValue old_value =
+        Traits::Set(this->impl(), key, this->ClearAndLeak(persistent));
+    return this->Release(old_value).Pass();
+  }
+
+  /**
+   * Put a value into the map and update the reference.
+   * Restrictions of GetReference apply here as well.
+   */
+  Global<V> Set(const K& key, Global<V> value,
+                PersistentValueReference* reference) {
+    *reference = this->Leak(&value);
+    return SetUnique(key, &value);
+  }
+
+ private:
+  static void WeakCallback(
+      const WeakCallbackInfo<typename Traits::WeakCallbackDataType>& data) {
+    if (Traits::kCallbackType != kNotWeak) {
+      PersistentValueMap<K, V, Traits>* persistentValueMap =
+          Traits::MapFromWeakCallbackInfo(data);
+      K key = Traits::KeyFromWeakCallbackInfo(data);
+      Traits::Dispose(data.GetIsolate(),
+                      persistentValueMap->Remove(key).Pass(), key);
+      Traits::DisposeCallbackData(data.GetParameter());
+    }
+  }
+};
+
+
+template <typename K, typename V, typename Traits>
+class GlobalValueMap : public PersistentValueMapBase<K, V, Traits> {
+ public:
+  explicit GlobalValueMap(Isolate* isolate)
+      : PersistentValueMapBase<K, V, Traits>(isolate) {}
+  GlobalValueMap(Isolate* isolate, const char* label)
+      : PersistentValueMapBase<K, V, Traits>(isolate, label) {}
+
+  typedef
+      typename PersistentValueMapBase<K, V, Traits>::PersistentValueReference
+          PersistentValueReference;
+
+  /**
+   * Put value into map. Depending on Traits::kIsWeak, the value will be held
+   * by the map strongly or weakly.
+   * Returns old value as Global.
+   */
+  Global<V> Set(const K& key, Local<V> value) {
+    Global<V> persistent(this->isolate(), value);
+    return SetUnique(key, &persistent);
+  }
+
+  /**
+   * Put value into map, like Set(const K&, Local<V>).
+   */
+  Global<V> Set(const K& key, Global<V> value) {
+    return SetUnique(key, &value);
+  }
+
+  /**
+   * Put the value into the map, and set the 'weak' callback when demanded
+   * by the Traits class.
+   */
+  Global<V> SetUnique(const K& key, Global<V>* persistent) {
+    if (Traits::kCallbackType == kNotWeak) {
+      this->AnnotateStrongRetainer(persistent);
+    } else {
+      WeakCallbackType callback_type =
+          Traits::kCallbackType == kWeakWithInternalFields
+              ? WeakCallbackType::kInternalFields
+              : WeakCallbackType::kParameter;
+      Local<V> value(Local<V>::New(this->isolate(), *persistent));
+      persistent->template SetWeak<typename Traits::WeakCallbackDataType>(
+          Traits::WeakCallbackParameter(this, key, value), OnWeakCallback,
+          callback_type);
+    }
+    PersistentContainerValue old_value =
+        Traits::Set(this->impl(), key, this->ClearAndLeak(persistent));
+    return this->Release(old_value).Pass();
+  }
+
+  /**
+   * Put a value into the map and update the reference.
+   * Restrictions of GetReference apply here as well.
+   */
+  Global<V> Set(const K& key, Global<V> value,
+                PersistentValueReference* reference) {
+    *reference = this->Leak(&value);
+    return SetUnique(key, &value);
+  }
+
+ private:
+  static void OnWeakCallback(
+      const WeakCallbackInfo<typename Traits::WeakCallbackDataType>& data) {
+    if (Traits::kCallbackType != kNotWeak) {
+      auto map = Traits::MapFromWeakCallbackInfo(data);
+      K key = Traits::KeyFromWeakCallbackInfo(data);
+      map->RemoveWeak(key);
+      Traits::OnWeakCallback(data);
+      data.SetSecondPassCallback(SecondWeakCallback);
+    }
+  }
+
+  static void SecondWeakCallback(
+      const WeakCallbackInfo<typename Traits::WeakCallbackDataType>& data) {
+    Traits::DisposeWeak(data);
+  }
+};
+
+
+/**
+ * A map that uses Global as value and std::map as the backing
+ * implementation. Persistents are held non-weak.
+ *
+ * C++11 embedders don't need this class, as they can use
+ * Global directly in std containers.
+ */
+template<typename K, typename V,
+    typename Traits = DefaultPersistentValueMapTraits<K, V> >
+class StdPersistentValueMap : public PersistentValueMap<K, V, Traits> {
+ public:
+  explicit StdPersistentValueMap(Isolate* isolate)
+      : PersistentValueMap<K, V, Traits>(isolate) {}
+};
+
+
+/**
+ * A map that uses Global as value and std::map as the backing
+ * implementation. Globals are held non-weak.
+ *
+ * C++11 embedders don't need this class, as they can use
+ * Global directly in std containers.
+ */
+template <typename K, typename V,
+          typename Traits = DefaultGlobalMapTraits<K, V> >
+class StdGlobalValueMap : public GlobalValueMap<K, V, Traits> {
+ public:
+  explicit StdGlobalValueMap(Isolate* isolate)
+      : GlobalValueMap<K, V, Traits>(isolate) {}
+};
+
+
+class DefaultPersistentValueVectorTraits {
+ public:
+  typedef std::vector<PersistentContainerValue> Impl;
+
+  static void Append(Impl* impl, PersistentContainerValue value) {
+    impl->push_back(value);
+  }
+  static bool IsEmpty(const Impl* impl) {
+    return impl->empty();
+  }
+  static size_t Size(const Impl* impl) {
+    return impl->size();
+  }
+  static PersistentContainerValue Get(const Impl* impl, size_t i) {
+    return (i < impl->size()) ? impl->at(i) : kPersistentContainerNotFound;
+  }
+  static void ReserveCapacity(Impl* impl, size_t capacity) {
+    impl->reserve(capacity);
+  }
+  static void Clear(Impl* impl) {
+    impl->clear();
+  }
+};
+
+
+/**
+ * A vector wrapper that safely stores Global values.
+ * C++11 embedders don't need this class, as they can use Global
+ * directly in std containers.
+ *
+ * This class relies on a backing vector implementation, whose type and methods
+ * are described by the Traits class. The backing map will handle values of type
+ * PersistentContainerValue, with all conversion into and out of V8
+ * handles being transparently handled by this class.
+ */
+template<typename V, typename Traits = DefaultPersistentValueVectorTraits>
+class PersistentValueVector {
+ public:
+  explicit PersistentValueVector(Isolate* isolate) : isolate_(isolate) { }
+
+  ~PersistentValueVector() {
+    Clear();
+  }
+
+  /**
+   * Append a value to the vector.
+   */
+  void Append(Local<V> value) {
+    Global<V> persistent(isolate_, value);
+    Traits::Append(&impl_, ClearAndLeak(&persistent));
+  }
+
+  /**
+   * Append a persistent's value to the vector.
+   */
+  void Append(Global<V> persistent) {
+    Traits::Append(&impl_, ClearAndLeak(&persistent));
+  }
+
+  /**
+   * Are there any values in the vector?
+   */
+  bool IsEmpty() const {
+    return Traits::IsEmpty(&impl_);
+  }
+
+  /**
+   * How many elements are in the vector?
+   */
+  size_t Size() const {
+    return Traits::Size(&impl_);
+  }
+
+  /**
+   * Retrieve the i-th value in the vector.
+   */
+  Local<V> Get(size_t index) const {
+    return Local<V>::New(isolate_, FromVal(Traits::Get(&impl_, index)));
+  }
+
+  /**
+   * Remove all elements from the vector.
+   */
+  void Clear() {
+    size_t length = Traits::Size(&impl_);
+    for (size_t i = 0; i < length; i++) {
+      Global<V> p;
+      p.val_ = FromVal(Traits::Get(&impl_, i));
+    }
+    Traits::Clear(&impl_);
+  }
+
+  /**
+   * Reserve capacity in the vector.
+   * (Efficiency gains depend on the backing implementation.)
+   */
+  void ReserveCapacity(size_t capacity) {
+    Traits::ReserveCapacity(&impl_, capacity);
+  }
+
+ private:
+  static PersistentContainerValue ClearAndLeak(Global<V>* persistent) {
+    V* v = persistent->val_;
+    persistent->val_ = nullptr;
+    return reinterpret_cast<PersistentContainerValue>(v);
+  }
+
+  static V* FromVal(PersistentContainerValue v) {
+    return reinterpret_cast<V*>(v);
+  }
+
+  Isolate* isolate_;
+  typename Traits::Impl impl_;
+};
+
+}  // namespace v8
+
+#endif  // V8_UTIL_H

cocos2d-x/external/ios/include/v8/v8-value-serializer-version.h

@@ -0,0 +1,24 @@
+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * Compile-time constants.
+ *
+ * This header provides access to information about the value serializer at
+ * compile time, without declaring or defining any symbols that require linking
+ * to V8.
+ */
+
+#ifndef INCLUDE_V8_VALUE_SERIALIZER_VERSION_H_
+#define INCLUDE_V8_VALUE_SERIALIZER_VERSION_H_
+
+#include <stdint.h>
+
+namespace v8 {
+
+constexpr uint32_t CurrentValueSerializerFormatVersion() { return 13; }
+
+}  // namespace v8
+
+#endif  // INCLUDE_V8_VALUE_SERIALIZER_VERSION_H_

cocos2d-x/external/ios/include/v8/v8-version-string.h

@@ -0,0 +1,38 @@
+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_VERSION_STRING_H_
+#define V8_VERSION_STRING_H_
+
+#include "v8-version.h"  // NOLINT(build/include)
+
+// This is here rather than v8-version.h to keep that file simple and
+// machine-processable.
+
+#if V8_IS_CANDIDATE_VERSION
+#define V8_CANDIDATE_STRING " (candidate)"
+#else
+#define V8_CANDIDATE_STRING ""
+#endif
+
+#ifndef V8_EMBEDDER_STRING
+#define V8_EMBEDDER_STRING ""
+#endif
+
+#define V8_SX(x) #x
+#define V8_S(x) V8_SX(x)
+
+#if V8_PATCH_LEVEL > 0
+#define V8_VERSION_STRING                                        \
+  V8_S(V8_MAJOR_VERSION)                                         \
+  "." V8_S(V8_MINOR_VERSION) "." V8_S(V8_BUILD_NUMBER) "." V8_S( \
+      V8_PATCH_LEVEL) V8_EMBEDDER_STRING V8_CANDIDATE_STRING
+#else
+#define V8_VERSION_STRING                              \
+  V8_S(V8_MAJOR_VERSION)                               \
+  "." V8_S(V8_MINOR_VERSION) "." V8_S(V8_BUILD_NUMBER) \
+      V8_EMBEDDER_STRING V8_CANDIDATE_STRING
+#endif
+
+#endif  // V8_VERSION_STRING_H_

cocos2d-x/external/ios/include/v8/v8-version.h

@@ -0,0 +1,20 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_INCLUDE_VERSION_H_  // V8_VERSION_H_ conflicts with src/version.h
+#define V8_INCLUDE_VERSION_H_
+
+// These macros define the version number for the current version.
+// NOTE these macros are used by some of the tool scripts and the build
+// system so their names cannot be changed without changing the scripts.
+#define V8_MAJOR_VERSION 8
+#define V8_MINOR_VERSION 0
+#define V8_BUILD_NUMBER 426
+#define V8_PATCH_LEVEL 16
+
+// Use 1 for candidates and 0 otherwise.
+// (Boolean macro values are not supported by all preprocessors.)
+#define V8_IS_CANDIDATE_VERSION 0
+
+#endif  // V8_INCLUDE_VERSION_H_

cocos2d-x/external/ios/include/v8/v8-wasm-trap-handler-posix.h

@@ -0,0 +1,31 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_WASM_TRAP_HANDLER_POSIX_H_
+#define V8_WASM_TRAP_HANDLER_POSIX_H_
+
+#include <signal.h>
+
+#include "v8config.h"  // NOLINT(build/include)
+
+namespace v8 {
+/**
+ * This function determines whether a memory access violation has been an
+ * out-of-bounds memory access in WebAssembly. If so, it will modify the context
+ * parameter and add a return address where the execution can continue after the
+ * signal handling, and return true. Otherwise, false will be returned.
+ *
+ * The parameters to this function correspond to those passed to a Posix signal
+ * handler. Use this function only on Linux and Mac.
+ *
+ * \param sig_code The signal code, e.g. SIGSEGV.
+ * \param info A pointer to the siginfo_t struct provided to the signal handler.
+ * \param context A pointer to a ucontext_t struct provided to the signal
+ * handler.
+ */
+V8_EXPORT bool TryHandleWebAssemblyTrapPosix(int sig_code, siginfo_t* info,
+                                             void* context);
+
+}  // namespace v8
+#endif  // V8_WASM_TRAP_HANDLER_POSIX_H_

cocos2d-x/external/ios/include/v8/v8-wasm-trap-handler-win.h

@@ -0,0 +1,28 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_WASM_TRAP_HANDLER_WIN_H_
+#define V8_WASM_TRAP_HANDLER_WIN_H_
+
+#include <windows.h>
+
+#include "v8config.h"  // NOLINT(build/include)
+
+namespace v8 {
+/**
+ * This function determines whether a memory access violation has been an
+ * out-of-bounds memory access in WebAssembly. If so, it will modify the
+ * exception parameter and add a return address where the execution can continue
+ * after the exception handling, and return true. Otherwise the return value
+ * will be false.
+ *
+ * The parameter to this function corresponds to the one passed to a Windows
+ * vectored exception handler. Use this function only on Windows.
+ *
+ * \param exception An EXCEPTION_POINTERS* as provided to the exception handler.
+ */
+V8_EXPORT bool TryHandleWebAssemblyTrapWindows(EXCEPTION_POINTERS* exception);
+
+}  // namespace v8
+#endif  // V8_WASM_TRAP_HANDLER_WIN_H_

cocos2d-x/external/ios/include/v8/v8config.h

@@ -0,0 +1,466 @@
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8CONFIG_H_
+#define V8CONFIG_H_
+
+// clang-format off
+
+// Platform headers for feature detection below.
+#if defined(__ANDROID__)
+# include <sys/cdefs.h>
+#elif defined(__APPLE__)
+# include <TargetConditionals.h>
+#elif defined(__linux__)
+# include <features.h>
+#endif
+
+
+// This macro allows to test for the version of the GNU C library (or
+// a compatible C library that masquerades as glibc). It evaluates to
+// 0 if libc is not GNU libc or compatible.
+// Use like:
+//  #if V8_GLIBC_PREREQ(2, 3)
+//   ...
+//  #endif
+#if defined(__GLIBC__) && defined(__GLIBC_MINOR__)
+# define V8_GLIBC_PREREQ(major, minor)                                    \
+    ((__GLIBC__ * 100 + __GLIBC_MINOR__) >= ((major) * 100 + (minor)))
+#else
+# define V8_GLIBC_PREREQ(major, minor) 0
+#endif
+
+
+// This macro allows to test for the version of the GNU C++ compiler.
+// Note that this also applies to compilers that masquerade as GCC,
+// for example clang and the Intel C++ compiler for Linux.
+// Use like:
+//  #if V8_GNUC_PREREQ(4, 3, 1)
+//   ...
+//  #endif
+#if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
+# define V8_GNUC_PREREQ(major, minor, patchlevel)                         \
+    ((__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) >=   \
+     ((major) * 10000 + (minor) * 100 + (patchlevel)))
+#elif defined(__GNUC__) && defined(__GNUC_MINOR__)
+# define V8_GNUC_PREREQ(major, minor, patchlevel)      \
+    ((__GNUC__ * 10000 + __GNUC_MINOR__ * 100) >=      \
+     ((major) * 10000 + (minor) * 100 + (patchlevel)))
+#else
+# define V8_GNUC_PREREQ(major, minor, patchlevel) 0
+#endif
+
+
+
+// -----------------------------------------------------------------------------
+// Operating system detection (host)
+//
+//  V8_OS_ANDROID       - Android
+//  V8_OS_BSD           - BSDish (Mac OS X, Net/Free/Open/DragonFlyBSD)
+//  V8_OS_CYGWIN        - Cygwin
+//  V8_OS_DRAGONFLYBSD  - DragonFlyBSD
+//  V8_OS_FREEBSD       - FreeBSD
+//  V8_OS_FUCHSIA       - Fuchsia
+//  V8_OS_LINUX         - Linux
+//  V8_OS_MACOSX        - Mac OS X
+//  V8_OS_IOS           - iOS
+//  V8_OS_NETBSD        - NetBSD
+//  V8_OS_OPENBSD       - OpenBSD
+//  V8_OS_POSIX         - POSIX compatible (mostly everything except Windows)
+//  V8_OS_QNX           - QNX Neutrino
+//  V8_OS_SOLARIS       - Sun Solaris and OpenSolaris
+//  V8_OS_AIX           - AIX
+//  V8_OS_WIN           - Microsoft Windows
+
+#if defined(__ANDROID__)
+# define V8_OS_ANDROID 1
+# define V8_OS_LINUX 1
+# define V8_OS_POSIX 1
+#elif defined(__APPLE__)
+# define V8_OS_BSD 1
+# define V8_OS_MACOSX 1
+# define V8_OS_POSIX 1
+# if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+#  define V8_OS_IOS 1
+# endif  // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+#elif defined(__CYGWIN__)
+# define V8_OS_CYGWIN 1
+# define V8_OS_POSIX 1
+#elif defined(__linux__)
+# define V8_OS_LINUX 1
+# define V8_OS_POSIX 1
+#elif defined(__sun)
+# define V8_OS_POSIX 1
+# define V8_OS_SOLARIS 1
+#elif defined(_AIX)
+#define V8_OS_POSIX 1
+#define V8_OS_AIX 1
+#elif defined(__FreeBSD__)
+# define V8_OS_BSD 1
+# define V8_OS_FREEBSD 1
+# define V8_OS_POSIX 1
+#elif defined(__Fuchsia__)
+# define V8_OS_FUCHSIA 1
+# define V8_OS_POSIX 1
+#elif defined(__DragonFly__)
+# define V8_OS_BSD 1
+# define V8_OS_DRAGONFLYBSD 1
+# define V8_OS_POSIX 1
+#elif defined(__NetBSD__)
+# define V8_OS_BSD 1
+# define V8_OS_NETBSD 1
+# define V8_OS_POSIX 1
+#elif defined(__OpenBSD__)
+# define V8_OS_BSD 1
+# define V8_OS_OPENBSD 1
+# define V8_OS_POSIX 1
+#elif defined(__QNXNTO__)
+# define V8_OS_POSIX 1
+# define V8_OS_QNX 1
+#elif defined(_WIN32)
+# define V8_OS_WIN 1
+#endif
+
+// -----------------------------------------------------------------------------
+// Operating system detection (target)
+//
+//  V8_TARGET_OS_ANDROID
+//  V8_TARGET_OS_FUCHSIA
+//  V8_TARGET_OS_IOS
+//  V8_TARGET_OS_LINUX
+//  V8_TARGET_OS_MACOSX
+//  V8_TARGET_OS_WIN
+//
+// If not set explicitly, these fall back to corresponding V8_OS_ values.
+
+#ifdef V8_HAVE_TARGET_OS
+
+// The target OS is provided, just check that at least one known value is set.
+# if !defined(V8_TARGET_OS_ANDROID) \
+  && !defined(V8_TARGET_OS_FUCHSIA) \
+  && !defined(V8_TARGET_OS_IOS) \
+  && !defined(V8_TARGET_OS_LINUX) \
+  && !defined(V8_TARGET_OS_MACOSX) \
+  && !defined(V8_TARGET_OS_WIN)
+#  error No known target OS defined.
+# endif
+
+#else  // V8_HAVE_TARGET_OS
+
+# if defined(V8_TARGET_OS_ANDROID) \
+  || defined(V8_TARGET_OS_FUCHSIA) \
+  || defined(V8_TARGET_OS_IOS) \
+  || defined(V8_TARGET_OS_LINUX) \
+  || defined(V8_TARGET_OS_MACOSX) \
+  || defined(V8_TARGET_OS_WIN)
+#  error A target OS is defined but V8_HAVE_TARGET_OS is unset.
+# endif
+
+// Fall back to the detected host OS.
+#ifdef V8_OS_ANDROID
+# define V8_TARGET_OS_ANDROID
+#endif
+
+#ifdef V8_OS_FUCHSIA
+# define V8_TARGET_OS_FUCHSIA
+#endif
+
+#ifdef V8_OS_IOS
+# define V8_TARGET_OS_IOS
+#endif
+
+#ifdef V8_OS_LINUX
+# define V8_TARGET_OS_LINUX
+#endif
+
+#ifdef V8_OS_MACOSX
+# define V8_TARGET_OS_MACOSX
+#endif
+
+#ifdef V8_OS_WIN
+# define V8_TARGET_OS_WIN
+#endif
+
+#endif  // V8_HAVE_TARGET_OS
+
+// -----------------------------------------------------------------------------
+// C library detection
+//
+//  V8_LIBC_MSVCRT  - MSVC libc
+//  V8_LIBC_BIONIC  - Bionic libc
+//  V8_LIBC_BSD     - BSD libc derivate
+//  V8_LIBC_GLIBC   - GNU C library
+//  V8_LIBC_UCLIBC  - uClibc
+//
+// Note that testing for libc must be done using #if not #ifdef. For example,
+// to test for the GNU C library, use:
+//  #if V8_LIBC_GLIBC
+//   ...
+//  #endif
+
+#if defined (_MSC_VER)
+# define V8_LIBC_MSVCRT 1
+#elif defined(__BIONIC__)
+# define V8_LIBC_BIONIC 1
+# define V8_LIBC_BSD 1
+#elif defined(__UCLIBC__)
+// Must test for UCLIBC before GLIBC, as UCLIBC pretends to be GLIBC.
+# define V8_LIBC_UCLIBC 1
+#elif defined(__GLIBC__) || defined(__GNU_LIBRARY__)
+# define V8_LIBC_GLIBC 1
+#else
+# define V8_LIBC_BSD V8_OS_BSD
+#endif
+
+
+// -----------------------------------------------------------------------------
+// Compiler detection
+//
+//  V8_CC_GNU     - GCC, or clang in gcc mode
+//  V8_CC_INTEL   - Intel C++
+//  V8_CC_MINGW   - Minimalist GNU for Windows
+//  V8_CC_MINGW32 - Minimalist GNU for Windows (mingw32)
+//  V8_CC_MINGW64 - Minimalist GNU for Windows (mingw-w64)
+//  V8_CC_MSVC    - Microsoft Visual C/C++, or clang in cl.exe mode
+//
+// C++11 feature detection
+//
+// Compiler-specific feature detection
+//
+//  V8_HAS_ATTRIBUTE_ALWAYS_INLINE      - __attribute__((always_inline))
+//                                        supported
+//  V8_HAS_ATTRIBUTE_NONNULL            - __attribute__((nonnull)) supported
+//  V8_HAS_ATTRIBUTE_NOINLINE           - __attribute__((noinline)) supported
+//  V8_HAS_ATTRIBUTE_UNUSED             - __attribute__((unused)) supported
+//  V8_HAS_ATTRIBUTE_VISIBILITY         - __attribute__((visibility)) supported
+//  V8_HAS_ATTRIBUTE_WARN_UNUSED_RESULT - __attribute__((warn_unused_result))
+//                                        supported
+//  V8_HAS_BUILTIN_BSWAP16              - __builtin_bswap16() supported
+//  V8_HAS_BUILTIN_BSWAP32              - __builtin_bswap32() supported
+//  V8_HAS_BUILTIN_BSWAP64              - __builtin_bswap64() supported
+//  V8_HAS_BUILTIN_CLZ                  - __builtin_clz() supported
+//  V8_HAS_BUILTIN_CTZ                  - __builtin_ctz() supported
+//  V8_HAS_BUILTIN_EXPECT               - __builtin_expect() supported
+//  V8_HAS_BUILTIN_FRAME_ADDRESS        - __builtin_frame_address() supported
+//  V8_HAS_BUILTIN_POPCOUNT             - __builtin_popcount() supported
+//  V8_HAS_BUILTIN_SADD_OVERFLOW        - __builtin_sadd_overflow() supported
+//  V8_HAS_BUILTIN_SSUB_OVERFLOW        - __builtin_ssub_overflow() supported
+//  V8_HAS_BUILTIN_UADD_OVERFLOW        - __builtin_uadd_overflow() supported
+//  V8_HAS_COMPUTED_GOTO                - computed goto/labels as values
+//                                        supported
+//  V8_HAS_DECLSPEC_NOINLINE            - __declspec(noinline) supported
+//  V8_HAS_DECLSPEC_SELECTANY           - __declspec(selectany) supported
+//  V8_HAS___FORCEINLINE                - __forceinline supported
+//
+// Note that testing for compilers and/or features must be done using #if
+// not #ifdef. For example, to test for Intel C++ Compiler, use:
+//  #if V8_CC_INTEL
+//   ...
+//  #endif
+
+#if defined(__clang__)
+
+#if defined(__GNUC__)  // Clang in gcc mode.
+# define V8_CC_GNU 1
+#endif
+
+# define V8_HAS_ATTRIBUTE_ALWAYS_INLINE (__has_attribute(always_inline))
+# define V8_HAS_ATTRIBUTE_NONNULL (__has_attribute(nonnull))
+# define V8_HAS_ATTRIBUTE_NOINLINE (__has_attribute(noinline))
+# define V8_HAS_ATTRIBUTE_UNUSED (__has_attribute(unused))
+# define V8_HAS_ATTRIBUTE_VISIBILITY (__has_attribute(visibility))
+# define V8_HAS_ATTRIBUTE_WARN_UNUSED_RESULT \
+    (__has_attribute(warn_unused_result))
+
+# define V8_HAS_BUILTIN_ASSUME_ALIGNED (__has_builtin(__builtin_assume_aligned))
+# define V8_HAS_BUILTIN_BSWAP16 (__has_builtin(__builtin_bswap16))
+# define V8_HAS_BUILTIN_BSWAP32 (__has_builtin(__builtin_bswap32))
+# define V8_HAS_BUILTIN_BSWAP64 (__has_builtin(__builtin_bswap64))
+# define V8_HAS_BUILTIN_CLZ (__has_builtin(__builtin_clz))
+# define V8_HAS_BUILTIN_CTZ (__has_builtin(__builtin_ctz))
+# define V8_HAS_BUILTIN_EXPECT (__has_builtin(__builtin_expect))
+# define V8_HAS_BUILTIN_FRAME_ADDRESS (__has_builtin(__builtin_frame_address))
+# define V8_HAS_BUILTIN_POPCOUNT (__has_builtin(__builtin_popcount))
+# define V8_HAS_BUILTIN_SADD_OVERFLOW (__has_builtin(__builtin_sadd_overflow))
+# define V8_HAS_BUILTIN_SSUB_OVERFLOW (__has_builtin(__builtin_ssub_overflow))
+# define V8_HAS_BUILTIN_UADD_OVERFLOW (__has_builtin(__builtin_uadd_overflow))
+
+// Clang has no __has_feature for computed gotos.
+// GCC doc: https://gcc.gnu.org/onlinedocs/gcc/Labels-as-Values.html
+# define V8_HAS_COMPUTED_GOTO 1
+
+// Whether constexpr has full C++14 semantics, in particular that non-constexpr
+// code is allowed as long as it's not executed for any constexpr instantiation.
+# define V8_HAS_CXX14_CONSTEXPR 1
+
+#elif defined(__GNUC__)
+
+# define V8_CC_GNU 1
+# if defined(__INTEL_COMPILER)  // Intel C++ also masquerades as GCC 3.2.0
+#  define V8_CC_INTEL 1
+# endif
+# if defined(__MINGW32__)
+#  define V8_CC_MINGW32 1
+# endif
+# if defined(__MINGW64__)
+#  define V8_CC_MINGW64 1
+# endif
+# define V8_CC_MINGW (V8_CC_MINGW32 || V8_CC_MINGW64)
+
+// always_inline is available in gcc 4.0 but not very reliable until 4.4.
+// Works around "sorry, unimplemented: inlining failed" build errors with
+// older compilers.
+# define V8_HAS_ATTRIBUTE_ALWAYS_INLINE 1
+# define V8_HAS_ATTRIBUTE_NOINLINE 1
+# define V8_HAS_ATTRIBUTE_UNUSED 1
+# define V8_HAS_ATTRIBUTE_VISIBILITY 1
+# define V8_HAS_ATTRIBUTE_WARN_UNUSED_RESULT (!V8_CC_INTEL)
+
+# define V8_HAS_BUILTIN_ASSUME_ALIGNED 1
+# define V8_HAS_BUILTIN_CLZ 1
+# define V8_HAS_BUILTIN_CTZ 1
+# define V8_HAS_BUILTIN_EXPECT 1
+# define V8_HAS_BUILTIN_FRAME_ADDRESS 1
+# define V8_HAS_BUILTIN_POPCOUNT 1
+
+// GCC doc: https://gcc.gnu.org/onlinedocs/gcc/Labels-as-Values.html
+#define V8_HAS_COMPUTED_GOTO 1
+
+// Whether constexpr has full C++14 semantics, in particular that non-constexpr
+// code is allowed as long as it's not executed for any constexpr instantiation.
+// GCC only supports this since version 6.
+# define V8_HAS_CXX14_CONSTEXPR (V8_GNUC_PREREQ(6, 0, 0))
+
+#endif
+
+#if defined(_MSC_VER)
+# define V8_CC_MSVC 1
+
+# define V8_HAS_DECLSPEC_NOINLINE 1
+# define V8_HAS_DECLSPEC_SELECTANY 1
+
+# define V8_HAS___FORCEINLINE 1
+
+#endif
+
+
+// -----------------------------------------------------------------------------
+// Helper macros
+
+// A macro used to make better inlining. Don't bother for debug builds.
+// Use like:
+//   V8_INLINE int GetZero() { return 0; }
+#if !defined(DEBUG) && V8_HAS_ATTRIBUTE_ALWAYS_INLINE
+# define V8_INLINE inline __attribute__((always_inline))
+#elif !defined(DEBUG) && V8_HAS___FORCEINLINE
+# define V8_INLINE __forceinline
+#else
+# define V8_INLINE inline
+#endif
+
+#if V8_HAS_BUILTIN_ASSUME_ALIGNED
+# define V8_ASSUME_ALIGNED(ptr, alignment) \
+  __builtin_assume_aligned((ptr), (alignment))
+#else
+# define V8_ASSUME_ALIGNED(ptr, alignment) (ptr)
+#endif
+
+
+// A macro to mark specific arguments as non-null.
+// Use like:
+//   int add(int* x, int y, int* z) V8_NONNULL(1, 3) { return *x + y + *z; }
+#if V8_HAS_ATTRIBUTE_NONNULL
+# define V8_NONNULL(...) __attribute__((nonnull(__VA_ARGS__)))
+#else
+# define V8_NONNULL(...) /* NOT SUPPORTED */
+#endif
+
+
+// A macro used to tell the compiler to never inline a particular function.
+// Don't bother for debug builds.
+// Use like:
+//   V8_NOINLINE int GetMinusOne() { return -1; }
+#if !defined(DEBUG) && V8_HAS_ATTRIBUTE_NOINLINE
+# define V8_NOINLINE __attribute__((noinline))
+#elif !defined(DEBUG) && V8_HAS_DECLSPEC_NOINLINE
+# define V8_NOINLINE __declspec(noinline)
+#else
+# define V8_NOINLINE /* NOT SUPPORTED */
+#endif
+
+
+// A macro (V8_DEPRECATED) to mark classes or functions as deprecated.
+#if defined(V8_DEPRECATION_WARNINGS)
+# define V8_DEPRECATED(message) [[deprecated(message)]]
+#else
+# define V8_DEPRECATED(message)
+#endif
+
+
+// A macro (V8_DEPRECATE_SOON) to make it easier to see what will be deprecated.
+#if defined(V8_IMMINENT_DEPRECATION_WARNINGS)
+# define V8_DEPRECATE_SOON(message) [[deprecated(message)]]
+#else
+# define V8_DEPRECATE_SOON(message)
+#endif
+
+
+// A macro to provide the compiler with branch prediction information.
+#if V8_HAS_BUILTIN_EXPECT
+# define V8_UNLIKELY(condition) (__builtin_expect(!!(condition), 0))
+# define V8_LIKELY(condition) (__builtin_expect(!!(condition), 1))
+#else
+# define V8_UNLIKELY(condition) (condition)
+# define V8_LIKELY(condition) (condition)
+#endif
+
+
+// Annotate a function indicating the caller must examine the return value.
+// Use like:
+//   int foo() V8_WARN_UNUSED_RESULT;
+#if V8_HAS_ATTRIBUTE_WARN_UNUSED_RESULT
+#define V8_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
+#else
+#define V8_WARN_UNUSED_RESULT /* NOT SUPPORTED */
+#endif
+
+#if defined(BUILDING_V8_SHARED) && defined(USING_V8_SHARED)
+#error Inconsistent build configuration: To build the V8 shared library \
+set BUILDING_V8_SHARED, to include its headers for linking against the \
+V8 shared library set USING_V8_SHARED.
+#endif
+
+#ifdef V8_OS_WIN
+
+// 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.
+#ifdef BUILDING_V8_SHARED
+# define V8_EXPORT __declspec(dllexport)
+#elif USING_V8_SHARED
+# define V8_EXPORT __declspec(dllimport)
+#else
+# define V8_EXPORT
+#endif  // BUILDING_V8_SHARED
+
+#else  // V8_OS_WIN
+
+// Setup for Linux shared library export.
+#if V8_HAS_ATTRIBUTE_VISIBILITY
+# ifdef BUILDING_V8_SHARED
+#  define V8_EXPORT __attribute__ ((visibility("default")))
+# else
+#  define V8_EXPORT
+# endif
+#else
+# define V8_EXPORT
+#endif
+
+#endif  // V8_OS_WIN
+
+// clang-format on
+
+#endif  // V8CONFIG_H_