558 lines
19 KiB
C++
558 lines
19 KiB
C++
/*
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* Copyright (C) 2004-2019 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#if ENABLE(NETSCAPE_PLUGIN_API)
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#include "NP_jsobject.h"
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#include "IdentifierRep.h"
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#include "JSDOMBinding.h"
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#include "c_instance.h"
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#include "c_utility.h"
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#include "npruntime_priv.h"
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#include "runtime_root.h"
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#include <JavaScriptCore/CatchScope.h>
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#include <JavaScriptCore/Completion.h>
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#include <JavaScriptCore/Error.h>
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#include <JavaScriptCore/JSGlobalObject.h>
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#include <JavaScriptCore/JSLock.h>
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#include <JavaScriptCore/PropertyNameArray.h>
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#include <JavaScriptCore/SourceCode.h>
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#include <wtf/NeverDestroyed.h>
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#include <wtf/text/WTFString.h>
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#pragma GCC visibility push(default)
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#include "npruntime_impl.h"
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#pragma GCC visibility pop
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namespace JSC {
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using namespace Bindings;
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using namespace WebCore;
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class ObjectMap {
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public:
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NPObject* get(RootObject* rootObject, JSObject* jsObject)
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{
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return m_map.get(rootObject).get(jsObject);
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}
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void add(RootObject* rootObject, JSObject* jsObject, NPObject* npObject)
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{
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HashMap<RootObject*, JSToNPObjectMap>::iterator iter = m_map.find(rootObject);
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if (iter == m_map.end()) {
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rootObject->addInvalidationCallback(&m_invalidationCallback);
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iter = m_map.add(rootObject, JSToNPObjectMap()).iterator;
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}
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ASSERT(iter->value.find(jsObject) == iter->value.end());
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iter->value.add(jsObject, npObject);
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}
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void remove(RootObject* rootObject)
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{
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ASSERT(m_map.contains(rootObject));
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m_map.remove(rootObject);
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}
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void remove(RootObject* rootObject, JSObject* jsObject)
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{
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HashMap<RootObject*, JSToNPObjectMap>::iterator iter = m_map.find(rootObject);
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ASSERT(iter != m_map.end());
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ASSERT(iter->value.find(jsObject) != iter->value.end());
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iter->value.remove(jsObject);
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}
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private:
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struct RootObjectInvalidationCallback : public RootObject::InvalidationCallback {
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void operator()(RootObject*) override;
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};
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RootObjectInvalidationCallback m_invalidationCallback;
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// JSObjects are protected by RootObject.
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typedef HashMap<JSObject*, NPObject*> JSToNPObjectMap;
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HashMap<RootObject*, JSToNPObjectMap> m_map;
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};
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static ObjectMap& objectMap()
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{
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static NeverDestroyed<ObjectMap> map;
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return map;
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}
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void ObjectMap::RootObjectInvalidationCallback::operator()(RootObject* rootObject)
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{
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objectMap().remove(rootObject);
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}
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static void getListFromVariantArgs(JSGlobalObject* lexicalGlobalObject, const NPVariant* args, unsigned argCount, RootObject* rootObject, MarkedArgumentBuffer& aList)
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{
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for (unsigned i = 0; i < argCount; ++i)
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aList.append(convertNPVariantToValue(lexicalGlobalObject, &args[i], rootObject));
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}
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static NPObject* jsAllocate(NPP, NPClass*)
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{
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return static_cast<NPObject*>(malloc(sizeof(JavaScriptObject)));
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}
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static void jsDeallocate(NPObject* npObj)
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{
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JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(npObj);
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if (obj->rootObject && obj->rootObject->isValid()) {
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objectMap().remove(obj->rootObject, obj->imp);
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obj->rootObject->gcUnprotect(obj->imp);
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}
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if (obj->rootObject)
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obj->rootObject->deref();
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free(obj);
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}
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static NPClass javascriptClass = { 1, jsAllocate, jsDeallocate, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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static NPClass noScriptClass = { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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extern "C" {
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NPClass* NPScriptObjectClass = &javascriptClass;
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static NPClass* NPNoScriptObjectClass = &noScriptClass;
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NPObject* _NPN_CreateScriptObject(NPP npp, JSObject* imp, RefPtr<RootObject>&& rootObject)
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{
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if (NPObject* object = objectMap().get(rootObject.get(), imp))
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return _NPN_RetainObject(object);
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JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(_NPN_CreateObject(npp, NPScriptObjectClass));
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obj->rootObject = rootObject.leakRef();
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if (obj->rootObject) {
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obj->rootObject->gcProtect(imp);
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objectMap().add(obj->rootObject, imp, reinterpret_cast<NPObject*>(obj));
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}
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obj->imp = imp;
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return reinterpret_cast<NPObject*>(obj);
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}
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NPObject* _NPN_CreateNoScriptObject(void)
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{
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return _NPN_CreateObject(0, NPNoScriptObjectClass);
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}
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bool _NPN_InvokeDefault(NPP, NPObject* o, const NPVariant* args, uint32_t argCount, NPVariant* result)
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{
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if (o->_class == NPScriptObjectClass) {
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JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(o);
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VOID_TO_NPVARIANT(*result);
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// Lookup the function object.
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RootObject* rootObject = obj->rootObject;
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if (!rootObject || !rootObject->isValid())
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return false;
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auto globalObject = rootObject->globalObject();
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VM& vm = globalObject->vm();
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JSLockHolder lock(vm);
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auto scope = DECLARE_CATCH_SCOPE(vm);
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JSGlobalObject* lexicalGlobalObject = globalObject;
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// Call the function object.
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JSValue function = obj->imp;
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auto callData = getCallData(vm, function);
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if (callData.type == CallData::Type::None)
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return false;
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MarkedArgumentBuffer argList;
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getListFromVariantArgs(lexicalGlobalObject, args, argCount, rootObject, argList);
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RELEASE_ASSERT(!argList.hasOverflowed());
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JSValue resultV = JSC::call(lexicalGlobalObject, function, callData, function, argList);
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// Convert and return the result of the function call.
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convertValueToNPVariant(lexicalGlobalObject, resultV, result);
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scope.clearException();
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return true;
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}
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if (o->_class->invokeDefault)
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return o->_class->invokeDefault(o, args, argCount, result);
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VOID_TO_NPVARIANT(*result);
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return true;
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}
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bool _NPN_Invoke(NPP npp, NPObject* o, NPIdentifier methodName, const NPVariant* args, uint32_t argCount, NPVariant* result)
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{
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if (o->_class == NPScriptObjectClass) {
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JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(o);
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IdentifierRep* i = static_cast<IdentifierRep*>(methodName);
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if (!i->isString())
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return false;
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// Special case the "eval" method.
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if (methodName == _NPN_GetStringIdentifier("eval")) {
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if (argCount != 1)
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return false;
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if (args[0].type != NPVariantType_String)
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return false;
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return _NPN_Evaluate(npp, o, const_cast<NPString*>(&args[0].value.stringValue), result);
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}
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// Look up the function object.
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RootObject* rootObject = obj->rootObject;
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if (!rootObject || !rootObject->isValid())
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return false;
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auto globalObject = rootObject->globalObject();
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VM& vm = globalObject->vm();
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JSLockHolder lock(vm);
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auto scope = DECLARE_CATCH_SCOPE(vm);
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JSGlobalObject* lexicalGlobalObject = globalObject;
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JSValue function = obj->imp->get(lexicalGlobalObject, identifierFromNPIdentifier(lexicalGlobalObject, i->string()));
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auto callData = getCallData(vm, function);
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if (callData.type == CallData::Type::None)
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return false;
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// Call the function object.
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MarkedArgumentBuffer argList;
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getListFromVariantArgs(lexicalGlobalObject, args, argCount, rootObject, argList);
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RELEASE_ASSERT(!argList.hasOverflowed());
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JSValue resultV = JSC::call(lexicalGlobalObject, function, callData, obj->imp, argList);
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// Convert and return the result of the function call.
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convertValueToNPVariant(lexicalGlobalObject, resultV, result);
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scope.clearException();
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return true;
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}
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if (o->_class->invoke)
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return o->_class->invoke(o, methodName, args, argCount, result);
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VOID_TO_NPVARIANT(*result);
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return true;
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}
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bool _NPN_Evaluate(NPP, NPObject* o, NPString* s, NPVariant* variant)
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{
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if (o->_class == NPScriptObjectClass) {
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JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(o);
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RootObject* rootObject = obj->rootObject;
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if (!rootObject || !rootObject->isValid())
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return false;
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auto globalObject = rootObject->globalObject();
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VM& vm = globalObject->vm();
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JSLockHolder lock(vm);
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auto scope = DECLARE_CATCH_SCOPE(vm);
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JSGlobalObject* lexicalGlobalObject = globalObject;
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String scriptString = convertNPStringToUTF16(s);
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JSValue returnValue = JSC::evaluate(lexicalGlobalObject, JSC::makeSource(scriptString, { }), JSC::JSValue());
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convertValueToNPVariant(lexicalGlobalObject, returnValue, variant);
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scope.clearException();
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return true;
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}
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VOID_TO_NPVARIANT(*variant);
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return false;
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}
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bool _NPN_GetProperty(NPP, NPObject* o, NPIdentifier propertyName, NPVariant* variant)
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{
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if (o->_class == NPScriptObjectClass) {
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JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(o);
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RootObject* rootObject = obj->rootObject;
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if (!rootObject || !rootObject->isValid())
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return false;
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auto globalObject = rootObject->globalObject();
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VM& vm = globalObject->vm();
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JSLockHolder lock(vm);
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auto scope = DECLARE_CATCH_SCOPE(vm);
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JSGlobalObject* lexicalGlobalObject = globalObject;
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IdentifierRep* i = static_cast<IdentifierRep*>(propertyName);
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JSValue result;
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if (i->isString())
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result = obj->imp->get(lexicalGlobalObject, identifierFromNPIdentifier(lexicalGlobalObject, i->string()));
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else
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result = obj->imp->get(lexicalGlobalObject, static_cast<uint32_t>(i->number()));
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convertValueToNPVariant(lexicalGlobalObject, result, variant);
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scope.clearException();
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return true;
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}
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if (o->_class->hasProperty && o->_class->getProperty) {
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if (o->_class->hasProperty(o, propertyName))
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return o->_class->getProperty(o, propertyName, variant);
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return false;
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}
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VOID_TO_NPVARIANT(*variant);
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return false;
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}
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bool _NPN_SetProperty(NPP, NPObject* o, NPIdentifier propertyName, const NPVariant* variant)
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{
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if (o->_class == NPScriptObjectClass) {
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JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(o);
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RootObject* rootObject = obj->rootObject;
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if (!rootObject || !rootObject->isValid())
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return false;
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auto globalObject = rootObject->globalObject();
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VM& vm = globalObject->vm();
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JSLockHolder lock(vm);
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auto scope = DECLARE_CATCH_SCOPE(vm);
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JSGlobalObject* lexicalGlobalObject = globalObject;
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IdentifierRep* i = static_cast<IdentifierRep*>(propertyName);
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if (i->isString()) {
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PutPropertySlot slot(obj->imp);
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obj->imp->methodTable(vm)->put(obj->imp, lexicalGlobalObject, identifierFromNPIdentifier(lexicalGlobalObject, i->string()), convertNPVariantToValue(lexicalGlobalObject, variant, rootObject), slot);
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} else
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obj->imp->methodTable(vm)->putByIndex(obj->imp, lexicalGlobalObject, i->number(), convertNPVariantToValue(lexicalGlobalObject, variant, rootObject), false);
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scope.clearException();
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return true;
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}
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if (o->_class->setProperty)
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return o->_class->setProperty(o, propertyName, variant);
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return false;
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}
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bool _NPN_RemoveProperty(NPP, NPObject* o, NPIdentifier propertyName)
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{
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if (o->_class == NPScriptObjectClass) {
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JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(o);
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RootObject* rootObject = obj->rootObject;
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if (!rootObject || !rootObject->isValid())
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return false;
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auto globalObject = rootObject->globalObject();
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VM& vm = globalObject->vm();
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JSLockHolder lock(vm);
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auto scope = DECLARE_CATCH_SCOPE(vm);
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JSGlobalObject* lexicalGlobalObject = globalObject;
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IdentifierRep* i = static_cast<IdentifierRep*>(propertyName);
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if (i->isString()) {
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if (!obj->imp->hasProperty(lexicalGlobalObject, identifierFromNPIdentifier(lexicalGlobalObject, i->string()))) {
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scope.clearException();
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return false;
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}
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} else {
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if (!obj->imp->hasProperty(lexicalGlobalObject, static_cast<uint32_t>(i->number()))) {
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scope.clearException();
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return false;
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}
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}
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if (i->isString())
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JSCell::deleteProperty(obj->imp, lexicalGlobalObject, identifierFromNPIdentifier(lexicalGlobalObject, i->string()));
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else
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obj->imp->methodTable(vm)->deletePropertyByIndex(obj->imp, lexicalGlobalObject, i->number());
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scope.clearException();
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return true;
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}
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return false;
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}
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bool _NPN_HasProperty(NPP, NPObject* o, NPIdentifier propertyName)
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{
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if (o->_class == NPScriptObjectClass) {
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JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(o);
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RootObject* rootObject = obj->rootObject;
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if (!rootObject || !rootObject->isValid())
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return false;
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auto globalObject = rootObject->globalObject();
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VM& vm = globalObject->vm();
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JSLockHolder lock(vm);
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auto scope = DECLARE_CATCH_SCOPE(vm);
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JSGlobalObject* lexicalGlobalObject = globalObject;
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IdentifierRep* i = static_cast<IdentifierRep*>(propertyName);
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if (i->isString()) {
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bool result = obj->imp->hasProperty(lexicalGlobalObject, identifierFromNPIdentifier(lexicalGlobalObject, i->string()));
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scope.clearException();
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return result;
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}
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bool result = obj->imp->hasProperty(lexicalGlobalObject, static_cast<uint32_t>(i->number()));
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scope.clearException();
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return result;
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}
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if (o->_class->hasProperty)
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return o->_class->hasProperty(o, propertyName);
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return false;
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}
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bool _NPN_HasMethod(NPP, NPObject* o, NPIdentifier methodName)
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{
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if (o->_class == NPScriptObjectClass) {
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JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(o);
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IdentifierRep* i = static_cast<IdentifierRep*>(methodName);
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if (!i->isString())
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return false;
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RootObject* rootObject = obj->rootObject;
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if (!rootObject || !rootObject->isValid())
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return false;
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auto globalObject = rootObject->globalObject();
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VM& vm = globalObject->vm();
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JSLockHolder lock(vm);
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auto scope = DECLARE_CATCH_SCOPE(vm);
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JSGlobalObject* lexicalGlobalObject = globalObject;
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JSValue func = obj->imp->get(lexicalGlobalObject, identifierFromNPIdentifier(lexicalGlobalObject, i->string()));
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scope.clearException();
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return !func.isUndefined();
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}
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if (o->_class->hasMethod)
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return o->_class->hasMethod(o, methodName);
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return false;
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}
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void _NPN_SetException(NPObject*, const NPUTF8* message)
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{
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// Ignoring the NPObject param is consistent with the Mozilla implementation.
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String exception(message);
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CInstance::setGlobalException(exception);
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}
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bool _NPN_Enumerate(NPP, NPObject* o, NPIdentifier** identifier, uint32_t* count)
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{
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if (o->_class == NPScriptObjectClass) {
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JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(o);
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RootObject* rootObject = obj->rootObject;
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if (!rootObject || !rootObject->isValid())
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return false;
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auto globalObject = rootObject->globalObject();
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VM& vm = globalObject->vm();
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JSLockHolder lock(vm);
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auto scope = DECLARE_CATCH_SCOPE(vm);
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JSGlobalObject* lexicalGlobalObject = globalObject;
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PropertyNameArray propertyNames(vm, PropertyNameMode::Strings, PrivateSymbolMode::Exclude);
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obj->imp->getPropertyNames(lexicalGlobalObject, propertyNames, DontEnumPropertiesMode::Exclude);
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unsigned size = static_cast<unsigned>(propertyNames.size());
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// FIXME: This should really call NPN_MemAlloc but that's in WebKit
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NPIdentifier* identifiers = static_cast<NPIdentifier*>(malloc(sizeof(NPIdentifier) * size));
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for (unsigned i = 0; i < size; ++i)
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identifiers[i] = _NPN_GetStringIdentifier(propertyNames[i].string().utf8().data());
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*identifier = identifiers;
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*count = size;
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scope.clearException();
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return true;
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}
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if (NP_CLASS_STRUCT_VERSION_HAS_ENUM(o->_class) && o->_class->enumerate)
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return o->_class->enumerate(o, identifier, count);
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return false;
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}
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bool _NPN_Construct(NPP, NPObject* o, const NPVariant* args, uint32_t argCount, NPVariant* result)
|
|
{
|
|
if (o->_class == NPScriptObjectClass) {
|
|
JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(o);
|
|
|
|
VOID_TO_NPVARIANT(*result);
|
|
|
|
// Lookup the constructor object.
|
|
RootObject* rootObject = obj->rootObject;
|
|
if (!rootObject || !rootObject->isValid())
|
|
return false;
|
|
|
|
auto globalObject = rootObject->globalObject();
|
|
VM& vm = globalObject->vm();
|
|
JSLockHolder lock(vm);
|
|
auto scope = DECLARE_CATCH_SCOPE(vm);
|
|
|
|
JSGlobalObject* lexicalGlobalObject = globalObject;
|
|
|
|
// Call the constructor object.
|
|
JSValue constructor = obj->imp;
|
|
auto constructData = getConstructData(vm, constructor);
|
|
if (constructData.type == CallData::Type::None)
|
|
return false;
|
|
|
|
MarkedArgumentBuffer argList;
|
|
getListFromVariantArgs(lexicalGlobalObject, args, argCount, rootObject, argList);
|
|
RELEASE_ASSERT(!argList.hasOverflowed());
|
|
JSValue resultV = JSC::construct(lexicalGlobalObject, constructor, constructData, argList);
|
|
|
|
// Convert and return the result.
|
|
convertValueToNPVariant(lexicalGlobalObject, resultV, result);
|
|
scope.clearException();
|
|
return true;
|
|
}
|
|
|
|
if (NP_CLASS_STRUCT_VERSION_HAS_CTOR(o->_class) && o->_class->construct)
|
|
return o->_class->construct(o, args, argCount, result);
|
|
|
|
return false;
|
|
}
|
|
|
|
} // extern "C"
|
|
|
|
} // namespace JSC
|
|
|
|
#endif // ENABLE(NETSCAPE_PLUGIN_API)
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