sky/engine/bindings-dart/core/dart/DartJsInterop.cpp - Issue 918273002: Remove bindings-dart

Unified Diff: sky/engine/bindings-dart/core/dart/DartJsInterop.cpp

Issue 918273002: Remove bindings-dart (Closed) Base URL: git@github.com:domokit/mojo.git@master

Patch Set: Created 5 years, 10 months ago

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Index: sky/engine/bindings-dart/core/dart/DartJsInterop.cpp

diff --git a/sky/engine/bindings-dart/core/dart/DartJsInterop.cpp b/sky/engine/bindings-dart/core/dart/DartJsInterop.cpp

deleted file mode 100644

index 4b4e8f9900d55c8fc3cbf0ad5d1e42a4883949f1..0000000000000000000000000000000000000000

--- a/sky/engine/bindings-dart/core/dart/DartJsInterop.cpp

+++ /dev/null

@@ -1,1053 +0,0 @@

-/*

- *

- * Redistribution and use in source and binary forms, with or without

- * modification, are permitted provided that the following conditions are

- * met:

- *

- * * Redistributions of source code must retain the above copyright

- * notice, this list of conditions and the following disclaimer.

- * * Redistributions in binary form must reproduce the above

- * copyright notice, this list of conditions and the following disclaimer

- * in the documentation and/or other materials provided with the

- * distribution.

- * * Neither the name of Google Inc. nor the names of its

- * contributors may be used to endorse or promote products derived from

- * this software without specific prior written permission.

- *

- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

- */

-#include "config.h"

-#include "bindings/core/dart/DartJsInterop.h"

-#include "bindings/core/dart/DartDOMWrapper.h"

-#include "bindings/core/dart/DartHandleProxy.h"

-#include "bindings/core/dart/DartJsInteropData.h"

-#include "bindings/core/dart/DartPersistentValue.h"

-#include "bindings/core/dart/DartUtilities.h"

-#include "bindings/core/dart/V8Converter.h"

-#include "bindings/core/v8/V8Binding.h"

-#include "bindings/core/v8/V8RecursionScope.h"

-#include "bindings/core/v8/V8ScriptRunner.h"

-#include "wtf/StdLibExtras.h"

-#include <dart_api.h>

-#include <limits>

-namespace blink {

-const int JsObject::dartClassId = _JsObjectClassId;

-const int JsFunction::dartClassId = _JsFunctionClassId;

-const int JsArray::dartClassId = _JsArrayClassId;

-static v8::Local<v8::FunctionTemplate> dartFunctionTemplate();

-static v8::Local<v8::FunctionTemplate> dartObjectTemplate();

-template<typename CallbackInfo>

-void setJsReturnValue(DartDOMData* domData, CallbackInfo info, Dart_Handle result)

- if (Dart_IsError(result)) {

- v8::Isolate* v8Isolate = v8::Isolate::GetCurrent();

- V8ThrowException::throwException(v8::String::NewFromUtf8(v8Isolate, Dart_GetError(result)), v8Isolate);

- } else {

- Dart_Handle exception = 0;

- v8::Local<v8::Value> ret = JsInterop::fromDart(domData, result, exception);

- if (exception) {

- V8ThrowException::throwException(V8Converter::stringToV8(Dart_ToString(exception)), v8::Isolate::GetCurrent());

- return;

- }

- v8SetReturnValue(info, ret);

- }

-static void functionInvocationCallback(const v8::FunctionCallbackInfo<v8::Value>& args)

- DartScopes scopes(args.Holder());

- Dart_Handle handle = scopes.handle;

- DartDOMData* domData = DartDOMData::current();

- ASSERT(domData);

- ASSERT(DartUtilities::isFunction(domData, handle));

- Vector<Dart_Handle> dartFunctionArgs;

- ASSERT(args.Length() == 1 || args.Length() == 2);

- // If there is 1 argument, we assume it is a v8:Array or arguments, if

- // there are 2 arguments, the first argument is "this" and the second

- // argument is an array of arguments.

- if (args.Length() > 1) {

- dartFunctionArgs.append(JsInterop::toDart(args[0]));

- }

- v8::Local<v8::Array> argsList = args[args.Length()-1].As<v8::Array>();

- uint32_t argsListLength = argsList->Length();

- for (uint32_t i = 0; i < argsListLength; i++) {

- dartFunctionArgs.append(JsInterop::toDart(argsList->Get(i)));

- }

- setJsReturnValue(domData, args, Dart_InvokeClosure(handle, dartFunctionArgs.size(), dartFunctionArgs.data()));

-static v8::Local<v8::ObjectTemplate> setupInstanceTemplate(v8::Local<v8::FunctionTemplate> proxyTemplate)

- v8::Local<v8::ObjectTemplate> instanceTemplate = proxyTemplate->InstanceTemplate();

- instanceTemplate->SetInternalFieldCount(1);

- return instanceTemplate;

-static v8::Local<v8::FunctionTemplate> dartFunctionTemplate()

- DEFINE_STATIC_LOCAL(v8::Persistent<v8::FunctionTemplate>, proxyTemplate, ());

- v8::Local<v8::FunctionTemplate> proxyTemplateLocal;

- v8::Isolate* v8Isolate = v8::Isolate::GetCurrent();

- if (proxyTemplate.IsEmpty()) {

- proxyTemplate.Reset(v8::Isolate::GetCurrent(), v8::FunctionTemplate::New(v8Isolate));

- proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate);

- v8::Local<v8::ObjectTemplate> instanceTemplate = setupInstanceTemplate(proxyTemplateLocal);

- instanceTemplate->SetCallAsFunctionHandler(&functionInvocationCallback);

- } else {

- proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate);

- }

- return proxyTemplateLocal;

-static v8::Local<v8::FunctionTemplate> dartObjectTemplate()

- DEFINE_STATIC_LOCAL(v8::Persistent<v8::FunctionTemplate>, proxyTemplate, ());

- v8::Local<v8::FunctionTemplate> proxyTemplateLocal;

- v8::Isolate* v8Isolate = v8::Isolate::GetCurrent();

- if (proxyTemplate.IsEmpty()) {

- proxyTemplate.Reset(v8Isolate, v8::FunctionTemplate::New(v8Isolate));

- proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate);

- proxyTemplateLocal->SetClassName(v8::String::NewFromUtf8(v8Isolate, "DartObject"));

- setupInstanceTemplate(proxyTemplateLocal);

- } else {

- proxyTemplateLocal = v8::Local<v8::FunctionTemplate>::New(v8Isolate, proxyTemplate);

- }

- return proxyTemplateLocal;

-/**

- * Helper class to manage scopes needed for JSInterop code.

- */

-class JsInteropScopes {

-public:

- Dart_NativeArguments args;

- v8::Context::Scope v8Scope;

- v8::TryCatch tryCatch;

- JsInteropScopes(Dart_NativeArguments args)

- : args(args)

- , v8Scope(DartUtilities::currentV8Context())

- {

- ASSERT(v8::Isolate::GetCurrent());

- }

- ~JsInteropScopes()

- {

- // The user is expected to call handleJsException before the scope is

- // closed so that V8 exceptions are properly sent back to Dart.

- ASSERT(!tryCatch.HasCaught());

- }

- bool handleJsException(Dart_Handle* exception)

- {

- if (!tryCatch.HasCaught())

- return false;

- // FIXME: terminate v8 if tryCatch.CanContinue() is false.

- ASSERT(tryCatch.CanContinue());

- ASSERT(exception);

- v8::Handle<v8::Value> ex(tryCatch.Exception()->ToString());

- if (ex.IsEmpty()) {

- *exception = Dart_NewStringFromCString("Empty JavaScript exception");

- } else {

- *exception = V8Converter::stringToDart(ex);

- }

- tryCatch.Reset();

- return true;

- }

- void setReturnValue(Dart_Handle ret)

- {

- ASSERT(!tryCatch.HasCaught());

- Dart_SetReturnValue(args, ret);

- }

- void setReturnValue(v8::Local<v8::Value> ret)

- {

- ASSERT(!tryCatch.HasCaught());

- Dart_SetReturnValue(args, JsInterop::toDart(ret));

- ASSERT(!tryCatch.HasCaught());

- }

- void setReturnValueInteger(int64_t ret)

- {

- ASSERT(!tryCatch.HasCaught());

- Dart_SetIntegerReturnValue(args, ret);

- }

-};

-PassRefPtr<JsObject> JsObject::create(v8::Local<v8::Object> v8Handle)

- return adoptRef(new JsObject(v8Handle));

-v8::Local<v8::Value> JsInterop::fromDart(DartDOMData* domData, Dart_Handle handle, Dart_Handle& exception)

- v8::Handle<v8::Value> value = V8Converter::toV8IfPrimitive(domData, handle, exception);

- if (!value.IsEmpty() || exception)

- return value;

- value = V8Converter::toV8IfBrowserNative(domData, handle, exception);

- if (!value.IsEmpty() || exception)

- return value;

- if (DartDOMWrapper::subtypeOf(handle, JsObject::dartClassId)) {

- JsObject* object = DartDOMWrapper::unwrapDartWrapper<JsObject>(domData, handle, exception);

- if (exception)

- return v8::Local<v8::Value>();

- return object->localV8Object();

- }

- if (DartUtilities::isFunction(domData, handle)) {

- v8::Local<v8::Object> functionProxy = dartFunctionTemplate()->InstanceTemplate()->NewInstance();

- DartHandleProxy::writePointerToProxy(functionProxy, handle);

- // The raw functionProxy doesn't behave enough like a true JS function

- // so we wrap it in a true JS function.

- return domData->jsInteropData()->wrapDartFunction()->Call(functionProxy, 0, 0);

- }

- v8::Local<v8::Object> proxy;

- ASSERT(Dart_IsInstance(handle));

- proxy = dartObjectTemplate()->InstanceTemplate()->NewInstance();

- DartHandleProxy::writePointerToProxy(proxy, handle);

- v8::Isolate* v8Isolate = v8::Isolate::GetCurrent();

- proxy->SetHiddenValue(v8::String::NewFromUtf8(v8Isolate, "dartProxy"), v8::Boolean::New(v8Isolate, true));

- return proxy;

-JsObject::JsObject(v8::Local<v8::Object> v8Handle)

- v8::Isolate* isolate = v8::Isolate::GetCurrent();

- v8::Persistent<v8::Object> persistentHandle;

- v8Object.Reset(isolate, v8Handle);

-v8::Local<v8::Object> JsObject::localV8Object()

- return v8::Local<v8::Object>::New(v8::Isolate::GetCurrent(), v8Object);

-Dart_Handle JsInterop::toDart(v8::Local<v8::Value> v8Handle)

- Dart_Handle handle = V8Converter::toDartIfPrimitive(v8Handle);

- if (handle)

- return handle;

- ASSERT(v8Handle->IsObject());

- v8::Handle<v8::Object> object = v8Handle.As<v8::Object>();

- Dart_Handle exception = 0;

- handle = V8Converter::toDartIfBrowserNative(object, object->CreationContext()->GetIsolate(), exception);

- ASSERT(!exception);

- if (handle)

- return handle;

- // Unwrap objects passed from Dart to JS that are being passed back to

- // Dart. FIXME: we do not yet handle unwrapping JS functions passed

- // from Dart to JS as we have to wrap them with true JS Function objects.

- // If this use case is important we can support it at the cost of hanging

- // an extra expando off the JS function wrapping the Dart function.

- if (DartHandleProxy::isDartProxy(v8Handle)) {

- DartPersistentValue* scriptValue = DartHandleProxy::readPointerFromProxy(v8Handle);

- ASSERT(scriptValue->isIsolateAlive());

- return scriptValue->value();

- }

- return JsObject::toDart(object);

-Dart_Handle JsObject::toDart(v8::Local<v8::Object> object)

- // FIXME: perform caching so that === can be used.

- if (object->IsFunction()) {

- RefPtr<JsFunction> jsFunction = JsFunction::create(object.As<v8::Function>());

- return JsFunction::toDart(jsFunction);

- }

- if (object->IsArray()) {

- RefPtr<JsArray> jsArray = JsArray::create(object.As<v8::Array>());

- return JsArray::toDart(jsArray);

- }

- RefPtr<JsObject> jsObject = JsObject::create(object);

- return JsObject::toDart(jsObject);

-Dart_Handle JsObject::toDart(PassRefPtr<JsObject> jsObject)

- return DartDOMWrapper::createWrapper<JsObject>(DartDOMData::current(), jsObject.get(), JsObject::dartClassId);

-JsObject::~JsObject()

- v8Object.Reset();

-Dart_Handle JsFunction::toDart(PassRefPtr<JsFunction> jsFunction)

- return DartDOMWrapper::createWrapper<JsFunction>(DartDOMData::current(), jsFunction.get(), JsFunction::dartClassId);

-JsFunction::JsFunction(v8::Local<v8::Function> v8Handle) : JsObject(v8Handle) { }

-PassRefPtr<JsFunction> JsFunction::create(v8::Local<v8::Function> v8Handle)

- return adoptRef(new JsFunction(v8Handle));

-v8::Local<v8::Function> JsFunction::localV8Function()

- return localV8Object().As<v8::Function>();

-Dart_Handle JsArray::toDart(PassRefPtr<JsArray> jsArray)

- return DartDOMWrapper::createWrapper<JsArray>(DartDOMData::current(), jsArray.get(), JsArray::dartClassId);

-JsArray::JsArray(v8::Local<v8::Array> v8Handle) : JsObject(v8Handle) { }

-PassRefPtr<JsArray> JsArray::create(v8::Local<v8::Array> v8Handle)

- return adoptRef(new JsArray(v8Handle));

-v8::Local<v8::Array> JsArray::localV8Array()

- return localV8Object().As<v8::Array>();

-namespace JsInteropInternal {

-typedef HashMap<Dart_Handle, v8::Handle<v8::Value> > DartHandleToV8Map;

-v8::Handle<v8::Value> jsifyHelper(DartDOMData*, Dart_Handle value, DartHandleToV8Map&, Dart_Handle& exception);

-void argsListToV8(DartDOMData* domData, Dart_Handle args, Vector<v8::Local<v8::Value> >* v8Args, Dart_Handle& exception)

- if (Dart_IsNull(args))

- return;

- if (!Dart_IsList(args)) {

- exception = Dart_NewStringFromCString("args not type list");

- return;

- }

- intptr_t argsLength = 0;

- Dart_ListLength(args, &argsLength);

- for (intptr_t i = 0; i < argsLength; i++) {

- v8Args->append(JsInterop::fromDart(domData, Dart_ListGetAt(args, i), exception));

- if (exception)

- return;

- }

-void argsListToV8DebuggerOnly(DartDOMData* domData, Dart_Handle args, Vector<v8::Local<v8::Value> >* v8Args, Dart_Handle& exception)

- if (Dart_IsNull(args))

- return;

- if (!Dart_IsList(args)) {

- exception = Dart_NewStringFromCString("args not type list");

- return;

- }

- intptr_t argsLength = 0;

- Dart_ListLength(args, &argsLength);

- for (intptr_t i = 0; i < argsLength; i++) {

- v8Args->append(DartHandleProxy::create(Dart_ListGetAt(args, i)));

- }

-static void jsObjectConstructorCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));

- v8::Local<v8::Value> constructorArg = JsInterop::fromDart(domData, Dart_GetNativeArgument(args, 0), exception);

- if (exception)

- goto fail;

- if (!constructorArg->IsFunction()) {

- exception = Dart_NewStringFromCString("constructor not a function");

- goto fail;

- }

- Vector<v8::Local<v8::Value> > v8Args;

- argsListToV8(domData, Dart_GetNativeArgument(args, 1), &v8Args, exception);

- v8::Local<v8::Value> ret = constructorArg.As<v8::Function>()->CallAsConstructor(v8Args.size(), v8Args.data());

- crashIfV8IsDead();

- if (scopes.handleJsException(&exception))

- goto fail;

- // Intentionally skip auto-conversion in this case as the user expects

- // a JSObject. FIXME: evaluate if this is the right solution.

- // Alternately, we could throw an exception.

- if (ret->IsObject()) {

- scopes.setReturnValue(JsObject::toDart(ret.As<v8::Object>()));

- } else {

- // This will throw an exception in Dart checked mode.

- scopes.setReturnValue(ret);

- }

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void identityEqualityCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));

- v8::Local<v8::Value> a = JsInterop::fromDart(domData, Dart_GetNativeArgument(args, 0), exception);

- if (exception)

- goto fail;

- v8::Local<v8::Value> b = JsInterop::fromDart(domData, Dart_GetNativeArgument(args, 1), exception);

- if (exception)

- goto fail;

- bool strictEquals = a->StrictEquals(b);

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValue(DartUtilities::boolToDart(strictEquals));

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void getterCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args);

- v8::Local<v8::Object> v8Receiver = receiver->localV8Object();

- Dart_Handle index = Dart_GetNativeArgument(args, 1);

- uint64_t intIndex = 0;

- v8::Local<v8::Value> ret;

- if (Dart_IsInteger(index)) {

- bool isUint64 = false;

- Dart_IntegerFitsIntoUint64(index, &isUint64);

- if (isUint64) {

- Dart_Handle ALLOW_UNUSED result = Dart_IntegerToUint64(index, &intIndex);

- if (intIndex <= std::numeric_limits<uint32_t>::max()) {

- ASSERT(!Dart_IsError(result));

- ret = v8Receiver->Get((uint32_t)intIndex);

- } else {

- ret = v8Receiver->Get(V8Converter::numberToV8(index));

- }

- } else {

- ret = v8Receiver->Get(V8Converter::numberToV8(index));

- }

- } else if (Dart_IsString(index)) {

- ret = v8Receiver->Get(V8Converter::stringToV8(index));

- } else if (Dart_IsNumber(index)) {

- ret = v8Receiver->Get(V8Converter::numberToV8(index));

- } else {

- ret = v8Receiver->Get(V8Converter::stringToV8(Dart_ToString(index)));

- }

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValue(ret);

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void hasPropertyCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args);

- v8::Local<v8::Object> v8Receiver = receiver->localV8Object();

- Dart_Handle property = Dart_GetNativeArgument(args, 1);

- if (!Dart_IsString(property))

- property = Dart_ToString(property);

- bool hasProperty = v8Receiver->Has(V8Converter::stringToV8(property));

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValue(DartUtilities::boolToDart(hasProperty));

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void deletePropertyCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args);

- v8::Local<v8::Object> v8Receiver = receiver->localV8Object();

- Dart_Handle property = Dart_GetNativeArgument(args, 1);

- if (!Dart_IsString(property))

- property = Dart_ToString(property);

- v8Receiver->Delete(V8Converter::stringToV8(property));

- if (scopes.handleJsException(&exception))

- goto fail;

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void instanceofCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));

- JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args);

- v8::Local<v8::Object> v8Receiver = receiver->localV8Object();

- v8::Local<v8::Value> type = JsInterop::fromDart(domData, Dart_GetNativeArgument(args, 1), exception);

- // FIXME: we could optimize the following lines slightly as the return

- // type is bool.

- v8::Local<v8::Value> ret = domData->jsInteropData()->instanceofFunction()->Call(v8Receiver, 1, &type);

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValue(ret);

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void setterCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));

- JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args);

- v8::Local<v8::Object> v8Receiver = receiver->localV8Object();

- Dart_Handle index = Dart_GetNativeArgument(args, 1);

- v8::Local<v8::Value> value = JsInterop::fromDart(domData, Dart_GetNativeArgument(args, 2), exception);

- if (exception)

- goto fail;

- uint64_t intIndex = 0;

- bool ret = false;

- if (Dart_IsInteger(index)) {

- bool isUint64 = false;

- Dart_IntegerFitsIntoUint64(index, &isUint64);

- if (isUint64) {

- Dart_Handle ALLOW_UNUSED result = Dart_IntegerToUint64(index, &intIndex);

- if (intIndex <= std::numeric_limits<uint32_t>::max()) {

- ASSERT(!Dart_IsError(result));

- ret = v8Receiver->Set((uint32_t)intIndex, value);

- } else {

- ret = v8Receiver->Set(V8Converter::numberToV8(index), value);

- }

- } else {

- ret = v8Receiver->Set(V8Converter::numberToV8(index), value);

- }

- } else if (Dart_IsString(index)) {

- ret = v8Receiver->Set(V8Converter::stringToV8(index), value);

- } else if (Dart_IsNumber(index)) {

- ret = v8Receiver->Set(V8Converter::numberToV8(index), value);

- } else {

- ret = v8Receiver->Set(V8Converter::stringToV8(Dart_ToString(index)), value);

- }

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValue(DartUtilities::boolToDart(ret));

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void hashCodeCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args);

- int hashCode = receiver->localV8Object()->GetIdentityHash();

- // FIXME: salt the v8 hashcode so we don't leak information about v8

- // memory allocation.

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValueInteger(hashCode);

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void callMethodCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));

- JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args);

- v8::Local<v8::Object> v8Receiver = receiver->localV8Object();

- Dart_Handle name = Dart_GetNativeArgument(args, 1);

- Vector<v8::Local<v8::Value> > v8Args;

- argsListToV8(domData, Dart_GetNativeArgument(args, 2), &v8Args, exception);

- if (exception)

- goto fail;

- if (!Dart_IsString(name))

- name = Dart_ToString(name);

- v8::Local<v8::Value> value = v8Receiver->Get(V8Converter::stringToV8(name));

- v8::Local<v8::Value> ret;

- if (value->IsFunction()) {

- ret = V8ScriptRunner::callFunction(value.As<v8::Function>(), DartUtilities::scriptExecutionContext(), receiver->localV8Object(), v8Args.size(), v8Args.data(), v8::Isolate::GetCurrent());

- } else if (value->IsObject()) {

- ret = V8ScriptRunner::callAsFunction(v8::Isolate::GetCurrent(), value.As<v8::Object>(), receiver->localV8Object(), v8Args.size(), v8Args.data());

- } else {

- // FIXME: we currently convert this exception to a NoSuchMethod

- // exception in the Dart code that wraps this native method.

- // Consider throwing a NoSuchMethod exception directly instead.

- exception = Dart_NewStringFromCString("property is not a function");

- goto fail;

- }

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValue(ret);

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void newJsArrayCallback(Dart_NativeArguments args)

- JsInteropScopes scopes(args);

- scopes.setReturnValue(JsObject::toDart(v8::Array::New(v8::Isolate::GetCurrent())));

- return;

-static void newJsArrayFromSafeListCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));

- Dart_Handle list = Dart_GetNativeArgument(args, 0);

- // Code on the Dart side insures this arg is a native Dart list.

- ASSERT(Dart_IsList(list));

- intptr_t length = 0;

- Dart_Handle result = Dart_ListLength(list, &length);

- ASSERT(!Dart_IsError(result));

- v8::Local<v8::Array> array = v8::Array::New(v8::Isolate::GetCurrent(), length);

- for (intptr_t i = 0; i < length; ++i) {

- result = Dart_ListGetAt(list, i);

- ASSERT(!Dart_IsError(result));

- v8::Handle<v8::Value> v8value = JsInterop::fromDart(domData, result, exception);

- if (exception)

- goto fail;

- array->Set(i, v8value);

- }

- scopes.setReturnValue(array);

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void jsArrayLengthCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- JsArray* receiver = DartDOMWrapper::receiver<JsArray>(args);

- uint32_t length = receiver->localV8Array()->Length();

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValueInteger(length);

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void fromBrowserObjectCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));

- v8::Local<v8::Value> ret = V8Converter::toV8IfBrowserNative(domData, Dart_GetNativeArgument(args, 0), exception);

- if (ret.IsEmpty()) {

- exception = Dart_NewStringFromCString("object must be an Node, ArrayBuffer, Blob, ImageData, or IDBKeyRange");

- goto fail;

- }

- if (exception)

- goto fail;

- ASSERT(ret->IsObject());

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValue(JsObject::toDart(ret.As<v8::Object>()));

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void applyCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));

- JsFunction* receiver = DartDOMWrapper::receiver<JsFunction>(args);

- Vector<v8::Local<v8::Value> > v8Args;

- argsListToV8(domData, Dart_GetNativeArgument(args, 1), &v8Args, exception);

- if (exception)

- goto fail;

- v8::Local<v8::Value> thisArg;

- Dart_Handle thisArgDart = Dart_GetNativeArgument(args, 2);

- if (Dart_IsNull(thisArgDart)) {

- // Use the global v8 object if no Dart thisArg was passed in.

- thisArg = DartUtilities::currentV8Context()->Global();

- } else {

- thisArg = JsInterop::fromDart(domData, thisArgDart, exception);

- if (exception)

- goto fail;

- if (!thisArg->IsObject()) {

- exception = Dart_NewStringFromCString("thisArg is not an object");

- goto fail;

- }

- v8::Local<v8::Value> ret = V8ScriptRunner::callFunction(receiver->localV8Function(), DartUtilities::scriptExecutionContext(), thisArg.As<v8::Object>(), v8Args.size(), v8Args.data(), v8::Isolate::GetCurrent());

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValue(ret);

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void applyDebuggerOnlyCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));

- JsFunction* receiver = DartDOMWrapper::receiver<JsFunction>(args);

- Vector<v8::Local<v8::Value> > v8Args;

- argsListToV8DebuggerOnly(domData, Dart_GetNativeArgument(args, 1), &v8Args, exception);

- if (exception)

- goto fail;

- v8::Local<v8::Value> thisArg;

- Dart_Handle thisArgDart = Dart_GetNativeArgument(args, 2);

- if (Dart_IsNull(thisArgDart)) {

- // Use the global v8 object if no Dart thisArg was passed in.

- thisArg = DartUtilities::currentV8Context()->Global();

- } else {

- thisArg = JsInterop::fromDart(domData, thisArgDart, exception);

- if (exception)

- goto fail;

- if (!thisArg->IsObject()) {

- exception = Dart_NewStringFromCString("thisArg is not an object");

- goto fail;

- }

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValue(ret);

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void toStringCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- JsObject* receiver = DartDOMWrapper::receiver<JsObject>(args);

- v8::Local<v8::Object> v8Object = receiver->localV8Object();

- if (scopes.handleJsException(&exception))

- goto fail;

- if (v8Object.IsEmpty()) {

- exception = Dart_NewStringFromCString("Invalid v8 handle");

- goto fail;

- }

- v8::Local<v8::String> v8String = v8Object->ToString();

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValue(v8String);

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void contextCallback(Dart_NativeArguments args)

- v8::Local<v8::Context> v8Context = DartUtilities::currentV8Context();

- v8::Context::Scope scope(v8Context);

- Dart_SetReturnValue(args, JsObject::toDart(v8Context->Global()));

-v8::Handle<v8::Value> mapToV8(DartDOMData* domData, Dart_Handle value, DartHandleToV8Map& map, Dart_Handle& exception)

- Dart_Handle asList = DartUtilities::invokeUtilsMethod("convertMapToList", 1, &value);

- if (!DartUtilities::checkResult(asList, exception))

- return v8::Handle<v8::Value>();

- ASSERT(Dart_IsList(asList));

- // Now we have a list [key, value, key, value, ....], create a v8 object and set necesary

- // properties on it.

- v8::Handle<v8::Object> object = v8::Object::New(v8::Isolate::GetCurrent());

- map.set(value, object);

- // We converted to internal Dart list, methods shouldn't throw exceptions now.

- intptr_t length = 0;

- Dart_Handle ALLOW_UNUSED result = Dart_ListLength(asList, &length);

- ASSERT(!Dart_IsError(result));

- ASSERT(!(length % 2));

- for (intptr_t i = 0; i < length; i += 2) {

- v8::Handle<v8::Value> key = jsifyHelper(domData, Dart_ListGetAt(asList, i), map, exception);

- if (exception)

- return v8::Handle<v8::Value>();

- v8::Handle<v8::Value> value = jsifyHelper(domData, Dart_ListGetAt(asList, i + 1), map, exception);

- if (exception)

- return v8::Handle<v8::Value>();

- object->Set(key, value);

- }

- return object;

-v8::Handle<v8::Value> listToV8(DartDOMData* domData, Dart_Handle value, DartHandleToV8Map& map, Dart_Handle& exception)

- ASSERT(Dart_IsList(value));

- intptr_t length = 0;

- Dart_Handle result = Dart_ListLength(value, &length);

- if (!DartUtilities::checkResult(result, exception))

- return v8::Handle<v8::Value>();

- v8::Local<v8::Array> array = v8::Array::New(v8::Isolate::GetCurrent(), length);

- map.set(value, array);

- for (intptr_t i = 0; i < length; ++i) {

- result = Dart_ListGetAt(value, i);

- if (!DartUtilities::checkResult(result, exception))

- return v8::Handle<v8::Value>();

- v8::Handle<v8::Value> v8value = jsifyHelper(domData, result, map, exception);

- if (exception)

- return v8::Handle<v8::Value>();

- array->Set(i, v8value);

- }

- return array;

-v8::Handle<v8::Value> jsifyHelper(DartDOMData* domData, Dart_Handle value, DartHandleToV8Map& map, Dart_Handle& exception)

- DartHandleToV8Map::iterator iter = map.find(value);

- if (iter != map.end())

- return iter->value;

- if (Dart_IsList(value))

- return listToV8(domData, value, map, exception);

- bool isMap = DartUtilities::dartToBool(DartUtilities::invokeUtilsMethod("isMap", 1, &value), exception);

- ASSERT(!exception);

- if (isMap)

- return mapToV8(domData, value, map, exception);

- Dart_Handle maybeList = DartUtilities::invokeUtilsMethod("toListIfIterable", 1, &value);

- if (Dart_IsList(maybeList))

- return listToV8(domData, maybeList, map, exception);

- v8::Handle<v8::Value> ret = JsInterop::fromDart(domData, value, exception);

- map.set(value, ret);

- return ret;

-static void jsifyCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- Dart_Handle value = Dart_GetNativeArgument(args, 0);

- DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));

- DartHandleToV8Map map;

- v8::Local<v8::Value> ret = jsifyHelper(domData, value, map, exception);

- if (exception)

- goto fail;

- if (scopes.handleJsException(&exception))

- goto fail;

- // Intentionally skip auto-conversion in this case as the user expects

- // a JSObject. FIXME: evaluate if this is the right solution.

- // Alternately, we could throw an exception.

- if (ret->IsObject()) {

- scopes.setReturnValue(JsObject::toDart(ret.As<v8::Object>()));

- } else {

- // This will throw an exception in Dart checked mode.

- scopes.setReturnValue(ret);

- }

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static void withThisCallback(Dart_NativeArguments args)

- Dart_Handle exception = 0;

- {

- JsInteropScopes scopes(args);

- Dart_Handle function = Dart_GetNativeArgument(args, 0);

- DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));

- ASSERT(DartUtilities::isFunction(domData, function));

- v8::Local<v8::Object> proxy = dartFunctionTemplate()->InstanceTemplate()->NewInstance();

- DartHandleProxy::writePointerToProxy(proxy, function);

- v8::Local<v8::Function> ret = v8::Local<v8::Function>::Cast(domData->jsInteropData()->captureThisFunction()->Call(proxy, 0, 0));

- if (scopes.handleJsException(&exception))

- goto fail;

- scopes.setReturnValue(ret);

- return;

- }

-fail:

- Dart_ThrowException(exception);

- ASSERT_NOT_REACHED();

-static DartNativeEntry nativeEntries[] = {

- { JsInteropInternal::jsObjectConstructorCallback, 2, "JsObject_constructorCallback" },

- { JsInteropInternal::contextCallback, 0, "Js_context_Callback" },

- { JsInteropInternal::jsifyCallback, 1, "JsObject_jsify" },

- { JsInteropInternal::withThisCallback, 1, "JsFunction_withThis" },

- { JsInteropInternal::getterCallback, 2, "JsObject_[]" },

- { JsInteropInternal::setterCallback, 3, "JsObject_[]=" },

- { JsInteropInternal::hashCodeCallback, 1, "JsObject_hashCode" },

- { JsInteropInternal::callMethodCallback, 3, "JsObject_callMethod" },

- { JsInteropInternal::toStringCallback, 1, "JsObject_toString" },

- { JsInteropInternal::identityEqualityCallback, 2, "JsObject_identityEquality" },

- { JsInteropInternal::hasPropertyCallback, 2, "JsObject_hasProperty" },

- { JsInteropInternal::deletePropertyCallback, 2, "JsObject_deleteProperty" },

- { JsInteropInternal::instanceofCallback, 2, "JsObject_instanceof" },

- { JsInteropInternal::applyCallback, 3, "JsFunction_apply" },

- { JsInteropInternal::applyDebuggerOnlyCallback, 3, "JsFunction_applyDebuggerOnly" },

- { JsInteropInternal::newJsArrayCallback, 0, "JsArray_newJsArray" },

- { JsInteropInternal::newJsArrayFromSafeListCallback, 1, "JsArray_newJsArrayFromSafeList" },

- { JsInteropInternal::jsArrayLengthCallback, 1, "JsArray_length" },

- { JsInteropInternal::fromBrowserObjectCallback, 1, "JsObject_fromBrowserObject" },

- { 0, 0, 0 },

-};

-Dart_NativeFunction JsInterop::resolver(Dart_Handle nameHandle, int argumentCount, bool* autoSetupScope)

- ASSERT(autoSetupScope);

- *autoSetupScope = true;

- String name = DartUtilities::toString(nameHandle);

- for (intptr_t i = 0; nativeEntries[i].nativeFunction != 0; i++) {

- if (argumentCount == nativeEntries[i].argumentCount && name == nativeEntries[i].name) {

- return nativeEntries[i].nativeFunction;

- }

- return 0;

-const uint8_t* JsInterop::symbolizer(Dart_NativeFunction nf)

- for (intptr_t i = 0; nativeEntries[i].nativeFunction != 0; i++) {

- if (nf == nativeEntries[i].nativeFunction) {

- return reinterpret_cast<const uint8_t*>(nativeEntries[i].name);

- }

- return 0;

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