tonic::DartWrappable Class Reference

#include <dart_wrappable.h>

Inheritance diagram for tonic::DartWrappable:

Public Types
enum	DartNativeFields { kPeerIndex , kNumberOfNativeFields }

Public Member Functions
	DartWrappable ()
virtual const DartWrapperInfo &	GetDartWrapperInfo () const =0
virtual void	RetainDartWrappableReference () const =0
virtual void	ReleaseDartWrappableReference () const =0
Dart_Handle	CreateDartWrapper (DartState *dart_state)
void	AssociateWithDartWrapper (Dart_Handle wrappable)
void	ClearDartWrapper ()
Dart_WeakPersistentHandle	dart_wrapper () const

Protected Member Functions
virtual	~DartWrappable ()

Static Protected Member Functions
static Dart_PersistentHandle	GetTypeForWrapper (tonic::DartState *dart_state, const tonic::DartWrapperInfo &wrapper_info)

Detailed Description

Definition at line 22 of file dart_wrappable.h.

Member Enumeration Documentation

DartNativeFields

enum tonic::DartWrappable::DartNativeFields

Enumerator
kPeerIndex
kNumberOfNativeFields

Definition at line 24 of file dart_wrappable.h.

                        {
    kPeerIndex,  // Must be first to work with Dart_GetNativeReceiver.
    kNumberOfNativeFields,
  };

Constructor & Destructor Documentation

DartWrappable()

tonic::DartWrappable::DartWrappable ( )

inline

Definition at line 29 of file dart_wrappable.h.

: dart_wrapper_(DartWeakPersistentValue()) {}

~DartWrappable()

tonic::DartWrappable::~DartWrappable ( )

protectedvirtual

Definition at line 14 of file dart_wrappable.cc.

                              {
  // Calls the destructor of dart_wrapper_ to delete WeakPersistentHandle.
}

Member Function Documentation

AssociateWithDartWrapper()

void tonic::DartWrappable::AssociateWithDartWrapper

(

Dart_Handle

wrappable

)

Definition at line 47 of file dart_wrappable.cc.

                                                                {
  if (!dart_wrapper_.is_empty()) {
    // Any previously given out wrapper must have been GCed.
    TONIC_DCHECK(Dart_IsNull(dart_wrapper_.Get()));
    dart_wrapper_.Clear();
  }
 
  TONIC_CHECK(!CheckAndHandleError(wrapper));
 
  TONIC_CHECK(!CheckAndHandleError(Dart_SetNativeInstanceField(
      wrapper, kPeerIndex, reinterpret_cast<intptr_t>(this))));
 
  this->RetainDartWrappableReference();  // Balanced in FinalizeDartWrapper.
 
  DartState* dart_state = DartState::Current();
  dart_wrapper_.Set(dart_state, wrapper, this, sizeof(*this),
                    &FinalizeDartWrapper);
}

ClearDartWrapper()

void tonic::DartWrappable::ClearDartWrapper

(

)

Definition at line 66 of file dart_wrappable.cc.

                                     {
  TONIC_DCHECK(!dart_wrapper_.is_empty());
  Dart_Handle wrapper = dart_wrapper_.Get();
  TONIC_CHECK(!CheckAndHandleError(
      Dart_SetNativeInstanceField(wrapper, kPeerIndex, 0)));
  dart_wrapper_.Clear();
  this->ReleaseDartWrappableReference();
}

CreateDartWrapper()

Dart_Handle tonic::DartWrappable::CreateDartWrapper

(

DartState *

dart_state

)

Definition at line 19 of file dart_wrappable.cc.

                                                                  {
  if (!dart_wrapper_.is_empty()) {
    // Any previously given out wrapper must have been GCed.
    TONIC_DCHECK(Dart_IsNull(dart_wrapper_.Get()));
    dart_wrapper_.Clear();
  }
 
  const DartWrapperInfo& info = GetDartWrapperInfo();
 
  Dart_PersistentHandle type = dart_state->class_library().GetClass(info);
  TONIC_DCHECK(!CheckAndHandleError(type));
 
  Dart_Handle wrapper =
      Dart_New(type, dart_state->private_constructor_name(), 0, nullptr);
 
  TONIC_DCHECK(!CheckAndHandleError(wrapper));
 
  Dart_Handle res = Dart_SetNativeInstanceField(
      wrapper, kPeerIndex, reinterpret_cast<intptr_t>(this));
  TONIC_DCHECK(!CheckAndHandleError(res));
 
  this->RetainDartWrappableReference();  // Balanced in FinalizeDartWrapper.
  dart_wrapper_.Set(dart_state, wrapper, this, sizeof(*this),
                    &FinalizeDartWrapper);
 
  return wrapper;
}

dart_wrapper()

Dart_WeakPersistentHandle tonic::DartWrappable::dart_wrapper ( ) const

inline

Definition at line 47 of file dart_wrappable.h.

                                                 {
    return dart_wrapper_.value();
  }

GetDartWrapperInfo()

virtual const DartWrapperInfo & tonic::DartWrappable::GetDartWrapperInfo ( ) const

pure virtual

GetTypeForWrapper()

Dart_PersistentHandle tonic::DartWrappable::GetTypeForWrapper ( tonic::DartState *  dart_state, const tonic::DartWrapperInfo &  wrapper_info  )

staticprotected

Definition at line 81 of file dart_wrappable.cc.

                                              {
  return dart_state->class_library().GetClass(wrapper_info);
}

ReleaseDartWrappableReference()

virtual void tonic::DartWrappable::ReleaseDartWrappableReference ( ) const

pure virtual

Implemented in flutter::RefCountedDartWrappable< T >, flutter::RefCountedDartWrappable< Canvas >, flutter::RefCountedDartWrappable< CanvasImage >, flutter::RefCountedDartWrappable< CanvasPath >, flutter::RefCountedDartWrappable< CanvasPathMeasure >, flutter::RefCountedDartWrappable< Codec >, flutter::RefCountedDartWrappable< ColorFilter >, flutter::RefCountedDartWrappable< CommandBuffer >, flutter::RefCountedDartWrappable< Context >, flutter::RefCountedDartWrappable< DeviceBuffer >, flutter::RefCountedDartWrappable< EngineLayer >, flutter::RefCountedDartWrappable< FlutterGpuTestClass >, flutter::RefCountedDartWrappable< FragmentProgram >, flutter::RefCountedDartWrappable< HostBuffer >, flutter::RefCountedDartWrappable< ImageDescriptor >, flutter::RefCountedDartWrappable< ImageFilter >, flutter::RefCountedDartWrappable< ImmutableBuffer >, flutter::RefCountedDartWrappable< MyNativeClass >, flutter::RefCountedDartWrappable< NativeStringAttribute >, flutter::RefCountedDartWrappable< Paragraph >, flutter::RefCountedDartWrappable< ParagraphBuilder >, flutter::RefCountedDartWrappable< Picture >, flutter::RefCountedDartWrappable< PictureRecorder >, flutter::RefCountedDartWrappable< RenderPass >, flutter::RefCountedDartWrappable< RenderPipeline >, flutter::RefCountedDartWrappable< Scene >, flutter::RefCountedDartWrappable< SceneBuilder >, flutter::RefCountedDartWrappable< SceneNode >, flutter::RefCountedDartWrappable< SemanticsUpdate >, flutter::RefCountedDartWrappable< SemanticsUpdateBuilder >, flutter::RefCountedDartWrappable< Shader >, flutter::RefCountedDartWrappable< ShaderLibrary >, flutter::RefCountedDartWrappable< Texture >, flutter::RefCountedDartWrappable< Vertices >, zircon::dart::Handle, zircon::dart::HandleDisposition, and zircon::dart::HandleWaiter.

RetainDartWrappableReference()

virtual void tonic::DartWrappable::RetainDartWrappableReference ( ) const

pure virtual

Implemented in flutter::RefCountedDartWrappable< T >, flutter::RefCountedDartWrappable< Canvas >, flutter::RefCountedDartWrappable< CanvasImage >, flutter::RefCountedDartWrappable< CanvasPath >, flutter::RefCountedDartWrappable< CanvasPathMeasure >, flutter::RefCountedDartWrappable< Codec >, flutter::RefCountedDartWrappable< ColorFilter >, flutter::RefCountedDartWrappable< CommandBuffer >, flutter::RefCountedDartWrappable< Context >, flutter::RefCountedDartWrappable< DeviceBuffer >, flutter::RefCountedDartWrappable< EngineLayer >, flutter::RefCountedDartWrappable< FlutterGpuTestClass >, flutter::RefCountedDartWrappable< FragmentProgram >, flutter::RefCountedDartWrappable< HostBuffer >, flutter::RefCountedDartWrappable< ImageDescriptor >, flutter::RefCountedDartWrappable< ImageFilter >, flutter::RefCountedDartWrappable< ImmutableBuffer >, flutter::RefCountedDartWrappable< MyNativeClass >, flutter::RefCountedDartWrappable< NativeStringAttribute >, flutter::RefCountedDartWrappable< Paragraph >, flutter::RefCountedDartWrappable< ParagraphBuilder >, flutter::RefCountedDartWrappable< Picture >, flutter::RefCountedDartWrappable< PictureRecorder >, flutter::RefCountedDartWrappable< RenderPass >, flutter::RefCountedDartWrappable< RenderPipeline >, flutter::RefCountedDartWrappable< Scene >, flutter::RefCountedDartWrappable< SceneBuilder >, flutter::RefCountedDartWrappable< SceneNode >, flutter::RefCountedDartWrappable< SemanticsUpdate >, flutter::RefCountedDartWrappable< SemanticsUpdateBuilder >, flutter::RefCountedDartWrappable< Shader >, flutter::RefCountedDartWrappable< ShaderLibrary >, flutter::RefCountedDartWrappable< Texture >, flutter::RefCountedDartWrappable< Vertices >, zircon::dart::Handle, zircon::dart::HandleDisposition, and zircon::dart::HandleWaiter.

---

The documentation for this class was generated from the following files:

• third_party/tonic/dart_wrappable.h
• third_party/tonic/dart_wrappable.cc