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26 #ifndef JSMainThreadExecState_h
27 #define JSMainThreadExecState_h
29 #include "JSDOMBinding.h"
30 #include <runtime/Completion.h>
32 #include <wtf/MainThread.h>
37 class JSMainThreadExecState {
38 WTF_MAKE_NONCOPYABLE(JSMainThreadExecState);
40 static JSC::ExecState* currentState()
42 ASSERT(isMainThread());
43 return s_mainThreadState;
46 static JSC::JSValue call(JSC::ExecState* exec, JSC::JSValue functionObject, JSC::CallType callType, const JSC::CallData& callData, JSC::JSValue thisValue, const JSC::ArgList& args)
48 JSMainThreadExecState currentState(exec);
49 // Ensure DOM global object is unwrapped to the shell.
50 if (thisValue.isObject())
51 thisValue = thisValue.toThisObject(exec);
52 return JSC::call(exec, functionObject, callType, callData, thisValue, args);
55 static JSC::JSValue evaluate(JSC::ExecState* exec, JSC::ScopeChainNode* chain, const JSC::SourceCode& source, JSC::JSValue thisValue, JSC::JSValue* exception)
57 JSMainThreadExecState currentState(exec);
58 return JSC::evaluate(exec, chain, source, thisValue, exception);
62 explicit JSMainThreadExecState(JSC::ExecState* exec)
63 : m_previousState(s_mainThreadState)
65 ASSERT(isMainThread());
66 s_mainThreadState = exec;
69 ~JSMainThreadExecState()
71 ASSERT(isMainThread());
72 s_mainThreadState = m_previousState;
76 static JSC::ExecState* s_mainThreadState;
77 JSC::ExecState* m_previousState;
80 // Null state prevents origin security checks.
81 class JSMainThreadNullState : private JSMainThreadExecState {
83 explicit JSMainThreadNullState() : JSMainThreadExecState(0) {};
86 } // namespace WebCore
88 #endif // JSMainThreadExecState_h