public bool Resolve(MethodStateMachine methodSM)
{
//Pop away finished method
_callStack.Pop();
//Take its return value if needed
if (methodSM.Context.ReturnsValue && _callStack.Count != 0)
{
_callStack.Peek().TakeMethodReturnValue(methodSM.Context.EvalStack);
}
if (methodSM.MethodDesc.IsEntryPoint && methodSM.MethodDesc.ReturnType != null)
{
EntryPointRet(methodSM.Context.EvalStack.Peek(), methodSM.MethodDesc.ReturnType);
}
//Find finally block. If exists, jump to its offset and continue execution. if not, break
if (methodSM.FinalliesBeforeReturn())
{
methodSM.State.ExecutionInterruption = ExecutionInterruption.None;
return(true);
}
else
{
return(false);
}
}
public ReturnFromSubroutineCommand(int address, int operationCode, ICallStack callStack)
: base(address, operationCode)
{
if (operationCode != 0x00EE)
throw new ArgumentOutOfRangeException("operationCode");
if (callStack == null)
throw new ArgumentNullException("callStack");
_callStack = callStack;
_initialTopOfStack = callStack.Peek();
}
private void ProcessCallStack()
{
while (_callStack.Count != 0)
{
MethodStateMachine methodSM = _callStack.Peek();
while (true)
{
methodSM.ExecInstructions();
if (_interruptionResolvers[methodSM.State.ExecutionInterruption].Resolve(methodSM))
{
continue;
}
else
{
break;
}
}
}
}