Remove unused V8 integration code in Sky

sky/engine/bindings/core/v8/V8PerContextData.cpp

-/*
- * Copyright (C) 2012 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 "sky/engine/config.h"
-#include "sky/engine/bindings/core/v8/V8PerContextData.h"
-
-#include "sky/engine/bindings/core/v8/ScriptState.h"
-#include "sky/engine/bindings/core/v8/V8Binding.h"
-#include "sky/engine/bindings/core/v8/V8ObjectConstructor.h"
-#include "sky/engine/wtf/StringExtras.h"
-
-#include <stdlib.h>
-
-namespace blink {
-
-V8PerContextData::V8PerContextData(v8::Handle<v8::Context> context)
-    : m_isolate(context->GetIsolate())
-    , m_wrapperBoilerplates(m_isolate)
-    , m_constructorMap(m_isolate)
-    , m_contextHolder(adoptPtr(new gin::ContextHolder(m_isolate)))
-    , m_context(m_isolate, context)
-    , m_customElementBindings(adoptPtr(new CustomElementBindingMap()))
-{
-    m_contextHolder->SetContext(context);
-
-    v8::Context::Scope contextScope(context);
-    ASSERT(m_errorPrototype.isEmpty());
-    v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(context->Global()->Get(v8AtomicString(m_isolate, "Error")));
-    ASSERT(!object.IsEmpty());
-    v8::Handle<v8::Value> prototypeValue = object->Get(v8AtomicString(m_isolate, "prototype"));
-    ASSERT(!prototypeValue.IsEmpty());
-    m_errorPrototype.set(m_isolate, prototypeValue);
-}
-
-V8PerContextData::~V8PerContextData()
-{
-}
-
-PassOwnPtr<V8PerContextData> V8PerContextData::create(v8::Handle<v8::Context> context)
-{
-    return adoptPtr(new V8PerContextData(context));
-}
-
-V8PerContextData* V8PerContextData::from(v8::Handle<v8::Context> context)
-{
-    return ScriptState::from(context)->perContextData();
-}
-
-v8::Local<v8::Object> V8PerContextData::createWrapperFromCacheSlowCase(const WrapperTypeInfo* type)
-{
-    ASSERT(!m_errorPrototype.isEmpty());
-
-    v8::Context::Scope scope(context());
-    v8::Local<v8::Function> function = constructorForType(type);
-    v8::Local<v8::Object> instanceTemplate = V8ObjectConstructor::newInstance(m_isolate, function);
-    if (!instanceTemplate.IsEmpty()) {
-        m_wrapperBoilerplates.Set(type, instanceTemplate);
-        return instanceTemplate->Clone();
-    }
-    return v8::Local<v8::Object>();
-}
-
-v8::Local<v8::Function> V8PerContextData::constructorForTypeSlowCase(const WrapperTypeInfo* type)
-{
-    ASSERT(!m_errorPrototype.isEmpty());
-
-    v8::Context::Scope scope(context());
-    v8::Handle<v8::FunctionTemplate> functionTemplate = type->domTemplate(m_isolate);
-    // Getting the function might fail if we're running out of stack or memory.
-    v8::TryCatch tryCatch;
-    v8::Local<v8::Function> function = functionTemplate->GetFunction();
-    if (function.IsEmpty())
-        return v8::Local<v8::Function>();
-
-    if (type->parentClass) {
-        v8::Local<v8::Object> prototypeTemplate = constructorForType(type->parentClass);
-        if (prototypeTemplate.IsEmpty())
-            return v8::Local<v8::Function>();
-        function->SetPrototype(prototypeTemplate);
-    }
-
-    v8::Local<v8::Value> prototypeValue = function->Get(v8AtomicString(m_isolate, "prototype"));
-    if (!prototypeValue.IsEmpty() && prototypeValue->IsObject()) {
-        v8::Local<v8::Object> prototypeObject = v8::Local<v8::Object>::Cast(prototypeValue);
-        if (prototypeObject->InternalFieldCount() == v8PrototypeInternalFieldcount
-            && type->wrapperTypePrototype == WrapperTypeInfo::WrapperTypeObjectPrototype)
-            prototypeObject->SetAlignedPointerInInternalField(v8PrototypeTypeIndex, const_cast<WrapperTypeInfo*>(type));
-        type->installConditionallyEnabledMethods(prototypeObject, m_isolate);
-        if (type->wrapperTypePrototype == WrapperTypeInfo::WrapperTypeExceptionPrototype)
-            prototypeObject->SetPrototype(m_errorPrototype.newLocal(m_isolate));
-    }
-
-    m_constructorMap.Set(type, function);
-
-    return function;
-}
-
-v8::Local<v8::Object> V8PerContextData::prototypeForType(const WrapperTypeInfo* type)
-{
-    v8::Local<v8::Object> constructor = constructorForType(type);
-    if (constructor.IsEmpty())
-        return v8::Local<v8::Object>();
-    return constructor->Get(v8String(m_isolate, "prototype")).As<v8::Object>();
-}
-
-void V8PerContextData::addCustomElementBinding(CustomElementDefinition* definition, PassOwnPtr<CustomElementBinding> binding)
-{
-    ASSERT(!m_customElementBindings->contains(definition));
-    m_customElementBindings->add(definition, binding);
-}
-
-void V8PerContextData::clearCustomElementBinding(CustomElementDefinition* definition)
-{
-    CustomElementBindingMap::iterator it = m_customElementBindings->find(definition);
-    ASSERT_WITH_SECURITY_IMPLICATION(it != m_customElementBindings->end());
-    m_customElementBindings->remove(it);
-}
-
-CustomElementBinding* V8PerContextData::customElementBinding(CustomElementDefinition* definition)
-{
-    CustomElementBindingMap::const_iterator it = m_customElementBindings->find(definition);
-    ASSERT_WITH_SECURITY_IMPLICATION(it != m_customElementBindings->end());
-    return it->value.get();
-}
-
-
-static v8::Handle<v8::Value> createDebugData(const char* worldName, int debugId, v8::Isolate* isolate)
-{
-    char buffer[32];
-    unsigned wanted;
-    if (debugId == -1)
-        wanted = snprintf(buffer, sizeof(buffer), "%s", worldName);
-    else
-        wanted = snprintf(buffer, sizeof(buffer), "%s,%d", worldName, debugId);
-
-    if (wanted < sizeof(buffer))
-        return v8AtomicString(isolate, buffer);
-
-    return v8::Undefined(isolate);
-}
-
-static v8::Handle<v8::Value> debugData(v8::Handle<v8::Context> context)
-{
-    v8::Context::Scope contextScope(context);
-    return context->GetEmbedderData(v8ContextDebugIdIndex);
-}
-
-static void setDebugData(v8::Handle<v8::Context> context, v8::Handle<v8::Value> value)
-{
-    v8::Context::Scope contextScope(context);
-    context->SetEmbedderData(v8ContextDebugIdIndex, value);
-}
-
-bool V8PerContextDebugData::setContextDebugData(v8::Handle<v8::Context> context, const char* worldName, int debugId)
-{
-    if (!debugData(context)->IsUndefined())
-        return false;
-    v8::HandleScope scope(context->GetIsolate());
-    v8::Handle<v8::Value> debugData = createDebugData(worldName, debugId, context->GetIsolate());
-    setDebugData(context, debugData);
-    return true;
-}
-
-int V8PerContextDebugData::contextDebugId(v8::Handle<v8::Context> context)
-{
-    v8::HandleScope scope(context->GetIsolate());
-    v8::Handle<v8::Value> data = debugData(context);
-
-    if (!data->IsString())
-        return -1;
-    v8::String::Utf8Value utf8(data);
-    char* comma = strnstr(*utf8, ",", utf8.length());
-    if (!comma)
-        return -1;
-    return atoi(comma + 1);
-}
-
-} // namespace blink