public override bool Rewrite(CodeDescriptor decompilee, MethodBase callee, StackElement[] args, IDecompiler stack, IFunctionBuilder builder)
{
var stateLookup = stack.QueryAttribute <IStateLookup>();
if (stateLookup == null)
{
var pd = decompilee as ProcessDescriptor;
if (pd == null)
{
var md = decompilee as MethodDescriptor;
if (md == null)
{
throw new InvalidOperationException("Unsupported code descriptor: " + decompilee);
}
pd = md.CallingProcess;
}
var pred = pd.Instance.Predicate;
var predElem = stack.GetCallExpression(
pred.Method, new StackElement(LiteralReference.CreateConstant(pred.Target), pred.Target, EVariability.Constant));
var fspec = new FunctionSpec(typeof(void))
{
CILRep = callee,
IntrinsicRep = IntrinsicFunctions.Wait(WaitParams.EWaitKind.WaitUntil)
};
builder.Call(fspec, new Expression[] { predElem.Expr });
}
else
{
builder.Store(
stateLookup.NextStateSignal,
stateLookup.GetStateExpression(stack.CurrentILIndex));
builder.Return();
}
return(true);
}