C++ (Cpp) ExecState::scope Exemples

Exemple #1

Fichier : JITOperations.cpp Projet : webOS-ports/webkit

static void* handleHostCall(ExecState* execCallee, JSValue callee, CodeSpecializationKind kind)
{
    ExecState* exec = execCallee->callerFrame();
    VM* vm = &exec->vm();

    execCallee->setScope(exec->scope());
    execCallee->setCodeBlock(0);

    if (kind == CodeForCall) {
        CallData callData;
        CallType callType = getCallData(callee, callData);
    
        ASSERT(callType != CallTypeJS);
    
        if (callType == CallTypeHost) {
            NativeCallFrameTracer tracer(vm, execCallee);
            execCallee->setCallee(asObject(callee));
            vm->hostCallReturnValue = JSValue::decode(callData.native.function(execCallee));
            if (vm->exception())
                return vm->getCTIStub(throwExceptionFromCallSlowPathGenerator).code().executableAddress();

            return reinterpret_cast<void*>(getHostCallReturnValue);
        }
    
        ASSERT(callType == CallTypeNone);
        exec->vm().throwException(exec, createNotAFunctionError(exec, callee));
        return vm->getCTIStub(throwExceptionFromCallSlowPathGenerator).code().executableAddress();
    }

    ASSERT(kind == CodeForConstruct);
    
    ConstructData constructData;
    ConstructType constructType = getConstructData(callee, constructData);
    
    ASSERT(constructType != ConstructTypeJS);
    
    if (constructType == ConstructTypeHost) {
        NativeCallFrameTracer tracer(vm, execCallee);
        execCallee->setCallee(asObject(callee));
        vm->hostCallReturnValue = JSValue::decode(constructData.native.function(execCallee));
        if (vm->exception())
            return vm->getCTIStub(throwExceptionFromCallSlowPathGenerator).code().executableAddress();

        return reinterpret_cast<void*>(getHostCallReturnValue);
    }
    
    ASSERT(constructType == ConstructTypeNone);
    exec->vm().throwException(exec, createNotAConstructorError(exec, callee));
    return vm->getCTIStub(throwExceptionFromCallSlowPathGenerator).code().executableAddress();
}