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#pragma once
#include "JSDOMBinding.h"
#include "JSDOMOperation.h"
namespace WebCore {
// Wrapper type for JSEventEmitter's castedThis because JSDOMWindow and JSWorkerGlobalScope do not inherit JSEventEmitter.
class JSEventEmitterWrapper {
WTF_MAKE_FAST_ALLOCATED;
public:
JSEventEmitterWrapper(EventEmitter& wrapped, JSC::JSObject* wrapper)
: m_wrapped(wrapped)
, m_wrapper(wrapper)
{
}
EventEmitter& wrapped() { return m_wrapped; }
operator JSC::JSObject&() { return *m_wrapper; }
private:
EventEmitter& m_wrapped;
JSC::JSObject* m_wrapper;
};
std::unique_ptr<JSEventEmitterWrapper> jsEventEmitterCast(JSC::VM&, JSC::JSGlobalObject*, JSC::JSValue thisValue);
JSEventEmitter* jsEventEmitterCastFast(VM& vm, JSC::JSGlobalObject* lexicalGlobalObject, JSValue thisValue);
template<>
class IDLOperation<JSEventEmitter> {
public:
using ClassParameter = JSEventEmitter*;
using Operation = JSC::EncodedJSValue(JSC::JSGlobalObject*, JSC::CallFrame*, ClassParameter);
template<Operation operation, CastedThisErrorBehavior = CastedThisErrorBehavior::Throw>
static JSC::EncodedJSValue call(JSC::JSGlobalObject& lexicalGlobalObject, JSC::CallFrame& callFrame, const char* operationName)
{
auto& vm = JSC::getVM(&lexicalGlobalObject);
auto throwScope = DECLARE_THROW_SCOPE(vm);
auto thisValue = callFrame.thisValue().toThis(&lexicalGlobalObject, JSC::ECMAMode::strict());
auto* thisObject = jsEventEmitterCastFast(vm, &lexicalGlobalObject, thisValue);
if (UNLIKELY(!thisObject))
return throwThisTypeError(lexicalGlobalObject, throwScope, "EventEmitter", operationName);
RELEASE_AND_RETURN(throwScope, (operation(&lexicalGlobalObject, &callFrame, thisObject)));
}
};
} // namespace WebCore
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