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This CL generated by |sed -i '/sky\/engine\/config.h/d'| and a manual sweep to catch some oddballs. TBR=eseidel@chromium.org Review URL: https://codereview.chromium.org/1206763002.
118 lines
4.4 KiB
C++
118 lines
4.4 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "sky/engine/tonic/dart_wrappable.h"
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#include "sky/engine/tonic/dart_class_library.h"
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#include "sky/engine/tonic/dart_error.h"
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#include "sky/engine/tonic/dart_exception_factory.h"
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#include "sky/engine/tonic/dart_state.h"
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#include "sky/engine/tonic/dart_wrapper_info.h"
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namespace blink {
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DartWrappable::~DartWrappable() {
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CHECK(!dart_wrapper_);
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}
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void DartWrappable::AcceptDartGCVisitor(DartGCVisitor& visitor) const {
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}
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Dart_Handle DartWrappable::CreateDartWrapper(DartState* dart_state) {
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DCHECK(!dart_wrapper_);
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const DartWrapperInfo& info = GetDartWrapperInfo();
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Dart_PersistentHandle type = dart_state->class_library().GetClass(info);
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DCHECK(!LogIfError(type));
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intptr_t native_fields[kNumberOfNativeFields];
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native_fields[kPeerIndex] = reinterpret_cast<intptr_t>(this);
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native_fields[kWrapperInfoIndex] = reinterpret_cast<intptr_t>(&info);
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Dart_Handle wrapper =
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Dart_AllocateWithNativeFields(type, kNumberOfNativeFields, native_fields);
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DCHECK(!LogIfError(wrapper));
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info.ref_object(this); // Balanced in FinalizeDartWrapper.
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dart_wrapper_ = Dart_NewPrologueWeakPersistentHandle(
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wrapper, this, info.size_in_bytes, &FinalizeDartWrapper);
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return wrapper;
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}
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void DartWrappable::AssociateWithDartWrapper(Dart_NativeArguments args) {
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DCHECK(!dart_wrapper_);
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Dart_Handle wrapper = Dart_GetNativeArgument(args, 0);
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CHECK(!LogIfError(wrapper));
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intptr_t native_fields[kNumberOfNativeFields];
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CHECK(!LogIfError(Dart_GetNativeFieldsOfArgument(
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args, 0, kNumberOfNativeFields, native_fields)));
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CHECK(!native_fields[kPeerIndex]);
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CHECK(!native_fields[kWrapperInfoIndex]);
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const DartWrapperInfo& info = GetDartWrapperInfo();
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CHECK(!LogIfError(Dart_SetNativeInstanceField(
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wrapper, kPeerIndex, reinterpret_cast<intptr_t>(this))));
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CHECK(!LogIfError(Dart_SetNativeInstanceField(
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wrapper, kWrapperInfoIndex, reinterpret_cast<intptr_t>(&info))));
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info.ref_object(this); // Balanced in FinalizeDartWrapper.
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dart_wrapper_ = Dart_NewPrologueWeakPersistentHandle(
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wrapper, this, info.size_in_bytes, &FinalizeDartWrapper);
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}
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void DartWrappable::FinalizeDartWrapper(void* isolate_callback_data,
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Dart_WeakPersistentHandle wrapper,
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void* peer) {
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DartWrappable* wrappable = reinterpret_cast<DartWrappable*>(peer);
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wrappable->dart_wrapper_ = nullptr;
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const DartWrapperInfo& info = wrappable->GetDartWrapperInfo();
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info.deref_object(wrappable); // Balanced in CreateDartWrapper.
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}
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DartWrappable* DartConverterWrappable::FromDart(Dart_Handle handle) {
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intptr_t peer = 0;
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Dart_Handle result =
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Dart_GetNativeInstanceField(handle, DartWrappable::kPeerIndex, &peer);
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if (Dart_IsError(result))
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return nullptr;
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return reinterpret_cast<DartWrappable*>(peer);
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}
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DartWrappable* DartConverterWrappable::FromArguments(Dart_NativeArguments args,
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int index,
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Dart_Handle& exception) {
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intptr_t native_fields[DartWrappable::kNumberOfNativeFields];
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Dart_Handle result = Dart_GetNativeFieldsOfArgument(
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args, index, DartWrappable::kNumberOfNativeFields, native_fields);
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if (Dart_IsError(result)) {
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exception = Dart_NewStringFromCString(DartError::kInvalidArgument);
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return nullptr;
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}
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return reinterpret_cast<DartWrappable*>(
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native_fields[DartWrappable::kPeerIndex]);
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}
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DartWrappable* DartConverterWrappable::FromArgumentsWithNullCheck(
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Dart_NativeArguments args, int index, Dart_Handle& exception) {
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Dart_Handle handle = Dart_GetNativeArgument(args, index);
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if (Dart_IsNull(handle)) {
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DartState* state = DartState::Current();
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exception = state->exception_factory().CreateNullArgumentException(index);
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return nullptr;
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}
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intptr_t native_fields[DartWrappable::kNumberOfNativeFields];
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Dart_Handle result = Dart_GetNativeFieldsOfArgument(
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args, index, DartWrappable::kNumberOfNativeFields, native_fields);
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if (Dart_IsError(result)) {
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exception = Dart_NewStringFromCString(DartError::kInvalidArgument);
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return nullptr;
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}
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return reinterpret_cast<DartWrappable*>(
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native_fields[DartWrappable::kPeerIndex]);
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}
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} // namespace blink
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