Things to unfork.

Source/WebCore/bindings/dart/DartUtilities.cpp

Index: Source/WebCore/bindings/dart/DartUtilities.cpp
diff --git a/Source/WebCore/bindings/dart/DartUtilities.cpp b/Source/WebCore/bindings/dart/DartUtilities.cpp
deleted file mode 100644
index f8f13329a9d6cc074554210895a07fcf7e33d5eb..0000000000000000000000000000000000000000
--- a/Source/WebCore/bindings/dart/DartUtilities.cpp
+++ /dev/null
@@ -1,474 +0,0 @@
-// Copyright 2011, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//    * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//    * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//    * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include "config.h"
-#include "DartUtilities.h"
-
-#include "DartEventListener.h"
-#include "DartIsolateState.h"
-#include "DartMessagePort.h"
-#include "DartNode.h"
-#include "DOMWindow.h"
-#include "Document.h"
-#include "Frame.h"
-#include "ScriptCallStack.h"
-#include "ScriptArguments.h"
-#include "SerializedScriptValue.h"
-#include "V8Converter.h"
-#include "V8Proxy.h"
-
-#include <wtf/text/AtomicString.h>
-#include <wtf/text/CString.h>
-
-namespace WebCore {
-
-const char* DartUtilities::domLibraryName = "dart:dom";
-
-PassRefPtr<StringImpl> DartUtilities::toStringImpl(Dart_Handle object, ConversionFlag flag, Dart_Handle& exception)
-{
-    if (flag == ConvertNullToEmptyString && Dart_IsNull(object))
-        return 0;
-
-    if (!Dart_IsString(object)) {
-        exception = Dart_NewString("String expected");
-        return 0;
-    }
-    if (!Dart_IsString16(object)) {
-        // FIXME: consider convertion to UTF16 in this case.
-        exception = Dart_NewString("32-bit string met, cannot be used in DOM API");
-        return 0;
-    }
-
-    if (Dart_IsExternalString(object)) {
-        void* peer = 0;
-        Dart_ExternalStringGetPeer(object, &peer);
-        ASSERT(peer);
-        StringImpl* stringImpl = reinterpret_cast<StringImpl*>(peer);
-        return stringImpl;
-    }
-
-    // Note: hopefully we should never overflow length as the string would be just too long to fit
-    // into memory.
-    intptr_t length = 0;
-    Dart_StringLength(object, &length);
-    UChar* buffer;
-    RefPtr<StringImpl> result = StringImpl::createUninitialized(length, buffer);
-    Dart_StringGet16(object, buffer, &length);
-    return result.release();
-}
-
-static void stringFinalizer(void* peer) {
-    StringImpl* stringImpl = reinterpret_cast<StringImpl*>(peer);
-    stringImpl->deref();
-}
-
-static Dart_Handle stringImplToDartString(StringImpl* stringImpl)
-{
-    if (!stringImpl)
-        return Dart_NewString8(0, 0);
-
-    stringImpl->ref();
-    // FIXME: maybe it makes sense only externalize strings longer than certain threshold, such as 5 symbols.
-    return Dart_NewExternalString16(stringImpl->characters(), stringImpl->length(),
-                                    stringImpl, stringFinalizer);
-}
-
-Dart_Handle DartUtilities::stringToDartString(const String& str)
-{
-    return stringImplToDartString(str.impl());
-}
-
-Dart_Handle DartUtilities::stringToDartString(const AtomicString& str)
-{
-    return stringImplToDartString(str.impl());
-}
-
-template <typename Trait>
-typename Trait::nativeType convert(Dart_Handle object, Dart_Handle& exception)
-{
-    typename Trait::nativeType value;
-    return !Dart_IsError(Trait::convert(object, &value)) ? value : typename Trait::nativeType();
-}
-
-struct IntegerTrait {
-    typedef int64_t nativeType;
-    static Dart_Handle convert(Dart_Handle object, int64_t* value)
-    {
-        return Dart_IntegerToInt64(object, value);
-        // FIXME: support bigints.
-    }
-};
-
-int64_t DartUtilities::toInteger(Dart_Handle object, Dart_Handle& exception)
-{
-    return convert<IntegerTrait>(object, exception);
-}
-
-int64_t DartUtilities::toInteger(Dart_Handle object)
-{
-    Dart_Handle exception = 0;
-    int64_t value = DartUtilities::toInteger(object, exception);
-    ASSERT(!exception);
-    return value;
-}
-
-struct DoubleTrait {
-    typedef double nativeType;
-    static Dart_Handle convert(Dart_Handle object, double* value)
-    {
-        if (!Dart_IsNumber(object))
-            return Dart_Error("the object !is Number");
-
-        object = Dart_InvokeDynamic(object, Dart_NewString("toDouble"), 0, 0);
-        if (Dart_IsError(object))
-            return object;
-
-        return Dart_DoubleValue(object, value);
-    }
-};
-
-double DartUtilities::toDouble(Dart_Handle object, Dart_Handle& exception)
-{
-    return convert<DoubleTrait>(object, exception);
-}
-
-double DartUtilities::toDouble(Dart_Handle object)
-{
-    Dart_Handle exception = 0;
-    double value = DartUtilities::toDouble(object, exception);
-    ASSERT(!exception);
-    return value;
-}
-
-struct BoolTrait {
-    typedef bool nativeType;
-    static Dart_Handle convert(Dart_Handle object, bool* value) { return Dart_BooleanValue(object, value); }
-};
-
-bool DartUtilities::toBool(Dart_Handle object, Dart_Handle& exception)
-{
-    return convert<BoolTrait>(object, exception);
-}
-
-bool DartUtilities::toBool(Dart_Handle object)
-{
-    Dart_Handle exception = 0;
-    bool value = DartUtilities::toBool(object, exception);
-    ASSERT(!exception);
-    return value;
-}
-
-PassRefPtr<EventListener> DartUtilities::toEventListener(Dart_Handle object, Dart_Handle& exception)
-{
-    if (Dart_IsNull(object)) {
-        exception = Dart_NewString("Null passed where Dart closure is expected");
-        return 0;
-    }
-
-    if (!Dart_IsClosure(object)) {
-        exception = Dart_NewString("Not a Dart closure passed");
-        return 0;
-    }
-
-    return DartEventListener::createOrFetch(object);
-}
-
-static v8::Local<v8::Context> currentV8Context()
-{
-    Frame* frame = DartUtilities::domWindowForCurrentIsolate()->frame();
-    v8::Local<v8::Context> context = V8Proxy::mainWorldContext(frame);
-    ASSERT(!context.IsEmpty());
-    return context;
-}
-
-PassRefPtr<SerializedScriptValue> DartUtilities::toSerializedScriptValue(Dart_Handle value, Dart_Handle& exception)
-{
-    v8::HandleScope handleScope;
-    v8::Context::Scope scope(currentV8Context());
-
-    v8::Handle<v8::Value> v8Value = V8Converter::toV8(value, exception);
-    if (exception)
-        return 0;
-    return SerializedScriptValue::create(v8Value);
-}
-
-Dart_Handle DartUtilities::fromSerializedScriptValue(SerializedScriptValue* value)
-{
-    v8::HandleScope handleScope;
-    v8::Context::Scope scope(currentV8Context());
-
-    // FIXME: better error handling.
-    Dart_Handle exception = 0;
-    return V8Converter::toDart(value->deserialize(), exception);
-}
-
-PassRefPtr<EventTarget> DartUtilities::toEventTarget(Dart_Handle object, Dart_Handle& exception)
-{
-    // FIXME: currently it's too risky to remove, but when Optional=CallWithDefaultValue is
-    // implemented, we should give it a try and unify with the rest of conversion.
-    if (Dart_IsNull(object))
-        return 0;
-
-    return DartNode::toNative(object, exception);
-}
-
-// FIXME: this function requires better testing. Currently blocking as new MessageChannel hasn't been implemented yet.
-void DartUtilities::toMessagePortArray(Dart_Handle value, MessagePortArray& portArray, Dart_Handle& exception)
-{
-    Dart_Handle dom = Dart_LookupLibrary(Dart_NewString(DartUtilities::domLibraryName));
-    ASSERT(!Dart_IsError(dom));
-
-    Dart_Handle asList = Dart_InvokeStatic(dom, Dart_NewString("Utils"), Dart_NewString("convertToList"), 1, &value);
-    if (Dart_IsError(asList)) {
-        DartUtilities::reportProblem(DartUtilities::scriptExecutionContext(), asList);
-        exception = DartDOMWrapper::exceptionCodeToDartException(INVALID_STATE_ERR);
-        return;
-    }
-    ASSERT(Dart_IsList(asList));
-
-    intptr_t length = 0;
-    Dart_ListLength(asList, &length);
-    portArray.resize(length);
-    for (int i = 0; i < length; i++) {
-        Dart_Handle element = Dart_ListGetAt(asList, i);
-        if (Dart_IsError(element)) {
-            exception = DartDOMWrapper::exceptionCodeToDartException(INVALID_STATE_ERR);
-            return;
-        }
-
-        MessagePort* messagePort = DartMessagePort::toNative(element, exception).get();
-        if (exception) {
-            exception = DartDOMWrapper::exceptionCodeToDartException(INVALID_STATE_ERR);
-            return;
-        }
-
-        ASSERT(messagePort);
-        portArray[i] = messagePort;
-    }
-}
-
-class DartDOMData {
-public:
-    DartDOMData()
-        : m_scriptExecutionContext(0)
-        , m_domWindow(0)
-        , m_recursion(0)
-    {
-    }
-
-    DartDOMData(ScriptExecutionContext* context)
-        : m_scriptExecutionContext(context)
-        , m_recursion(0)
-    {
-        ASSERT(context);
-        ASSERT(context->isDocument()); // WorkerContext is not supported yet.
-        Document* document = static_cast<Document*>(context);
-        m_domWindow = document->domWindow();
-    }
-
-    ScriptExecutionContext* scriptExecutionContext() { return m_scriptExecutionContext; }
-    DOMWindow* domWindow() { return m_domWindow; }
-    DartDOMMap* domMap() { return &m_domMap; }
-    int* recursion() { return &m_recursion; }
-
-private:
-    ScriptExecutionContext* m_scriptExecutionContext;
-    DOMWindow* m_domWindow;
-    DartDOMMap m_domMap;
-    int m_recursion;
-};
-
-typedef HashMap<Dart_Isolate, DartDOMData*> IsolateToDartDOMDataMap;
-
-static IsolateToDartDOMDataMap& isolateToDartDOMDataMap()
-{
-    DEFINE_STATIC_LOCAL(IsolateToDartDOMDataMap, map, ());
-    return map;
-}
-
-static DartDOMData* domDataForIsolate(Dart_Isolate isolate)
-{
-    IsolateToDartDOMDataMap::iterator it = isolateToDartDOMDataMap().find(isolate);
-    ASSERT(it != isolateToDartDOMDataMap().end());
-    return it->second;
-}
-
-static DartDOMData* currentDOMData()
-{
-    return domDataForIsolate(DartIsolateState::current());
-}
-
-void DartUtilities::registerIsolateContext(Dart_Isolate isolate, ScriptExecutionContext* context)
-{
-    ASSERT(!isolateToDartDOMDataMap().contains(isolate));
-    isolateToDartDOMDataMap().set(isolate, new DartDOMData(context));
-}
-
-ScriptExecutionContext* DartUtilities::isolateContext(Dart_Isolate isolate)
-{
-    return domDataForIsolate(isolate)->scriptExecutionContext();
-}
-
-void DartUtilities::unregisterIsolateContext(Dart_Isolate isolate)
-{
-    IsolateToDartDOMDataMap::iterator it = isolateToDartDOMDataMap().find(isolate);
-    ASSERT(it != isolateToDartDOMDataMap().end());
-    delete it->second;
-    isolateToDartDOMDataMap().remove(it);
-}
-
-bool DartUtilities::isFullDomIsolate(Dart_Isolate isolate)
-{
-    return isolateToDartDOMDataMap().contains(isolate);
-}
-
-DOMWindow* DartUtilities::domWindowForIsolate(Dart_Isolate isolate)
-{
-    return domDataForIsolate(isolate)->domWindow();
-}
-
-DOMWindow* DartUtilities::domWindowForCurrentIsolate()
-{
-    return currentDOMData()->domWindow();
-}
-
-Dart_Handle DartUtilities::domLibraryForCurrentIsolate()
-{
-    // FIXME: Cache this on the isolate.
-    Dart_Handle library = Dart_LookupLibrary(Dart_NewString(domLibraryName));
-    ASSERT(!Dart_IsError(library));
-    return library;
-}
-
-DartDOMMap* DartUtilities::domMapForIsolate(Dart_Isolate isolate)
-{
-    return domDataForIsolate(isolate)->domMap();
-}
-
-DartDOMMap* DartUtilities::domMapForCurrentIsolate()
-{
-    return currentDOMData()->domMap();
-}
-
-int* DartUtilities::recursionForIsolate(Dart_Isolate isolate)
-{
-    return domDataForIsolate(isolate)->recursion();
-}
-
-int* DartUtilities::recursionForCurrentIsolate()
-{
-    return currentDOMData()->recursion();
-}
-
-ScriptExecutionContext* DartUtilities::scriptExecutionContext()
-{
-    return currentDOMData()->scriptExecutionContext();
-}
-
-bool DartUtilities::processingUserGesture()
-{
-    // FIXME: implement this.
-    return false;
-}
-
-PassRefPtr<ScriptArguments> DartUtilities::createScriptArguments(Dart_Handle argument, Dart_Handle& exception)
-{
-    v8::Handle<v8::Value> v8Argument = V8Converter::toV8(argument, exception);
-    if (v8Argument->IsUndefined())
-        return 0;
-    Vector<ScriptValue> arguments;
-    arguments.append(v8Argument);
-    ScriptState* scriptState = ScriptState::forContext(currentV8Context());
-    return ScriptArguments::create(scriptState, arguments);
-}
-
-PassRefPtr<ScriptCallStack> DartUtilities::createScriptCallStack()
-{
-    // FIXME: wrap current dart call stack as ScriptCallStack.
-    Vector<ScriptCallFrame> wrappedCallFrames;
-    wrappedCallFrames.append(ScriptCallFrame("undefined", "undefined", 0));
-    return ScriptCallStack::create(wrappedCallFrames);
-}
-
-const uint8_t* DartUtilities::fullSnapshot()
-{
-    static const uint8_t snapshotBuffer[] = {
-// DartSnapshot.bytes is generated by build system.
-#include "DartSnapshot.bytes"
-    };
-    return snapshotBuffer;
-}
-
-void DartUtilities::reportProblem(ScriptExecutionContext* context, Dart_Handle result)
-{
-    ASSERT(Dart_IsError(result));
-
-    const String internalErrorPrefix("Internal error: ");
-
-    String errorMessage;
-    // FIXME: source file info.
-    String sourceFile = "FIXME";
-    // FIXME: line number info.
-    int lineNumber = 0;
-    // FIXME: call stack info.
-    RefPtr<ScriptCallStack> callStack;
-
-    if (!Dart_ErrorHasException(result))
-        errorMessage = internalErrorPrefix + Dart_GetError(result);
-    else {
-        // Print the exception.
-        Dart_Handle exception = Dart_ErrorGetException(result);
-        ASSERT(!Dart_IsError(exception));
-
-        exception = Dart_ToString(exception);
-        if (Dart_IsError(exception))
-            errorMessage = String("Error converting exception to a string: ") + Dart_GetError(exception);
-        else
-            errorMessage = String("Exception: ") + DartUtilities::dartStringToString(exception);
-
-        // FIXME: Fill in the callStack, sourceFile, and lineNumber
-        // and remove the below once the Dart APIs to iterate over the
-        // trace are available.
-
-        // Print the stack trace.
-        Dart_Handle stacktrace = Dart_ErrorGetStacktrace(result);
-        ASSERT(!Dart_IsError(stacktrace));
-
-        stacktrace = Dart_ToString(stacktrace);
-        if (Dart_IsError(stacktrace))
-            errorMessage += String("\nError converting stack trace to a string: ") + Dart_GetError(stacktrace);
-        else
-            errorMessage += String("\nStack Trace: ") + DartUtilities::dartStringToString(stacktrace);
-    }
-
-    if (context && context->isDocument())
-        static_cast<Document*>(context)->reportException(errorMessage, lineNumber, sourceFile, callStack);
-}
-
-}