public void SetCont(IValue returnValue, ValueCont cont, SourceInfo info)
{
var winders = cont.Winders;
if (winders == Winders)
{
Insns = cont.Insns;
Stack = cont.Stack;
Env = cont.Env;
Push(returnValue);
}
else if (winders.ContainsList(Winders))
{
var newWinders = winders.GetPreviousList(Winders);
IValue before = newWinders.Head.Key;
Stack<IInsn> insnStack = new Stack<IInsn>();
insnStack.Push(new InsnPush(before));
insnStack.Push(new InsnCall(0, info));
insnStack.Push(InsnPop.Instance);
insnStack.Push(new InsnSetWinders(newWinders));
insnStack.Push(new InsnPush(cont));
insnStack.Push(new InsnPush(returnValue));
insnStack.Push(new InsnCall(1, info));
Insns = insnStack.ToSList();
Stack = SList.Nil<IValue>();
}
else
{
IValue after = Winders.Head.Value;
Winders = Winders.Tail;
Stack<IInsn> insnStack = new Stack<IInsn>();
insnStack.Push(new InsnPush(after));
insnStack.Push(new InsnCall(0, info));
insnStack.Push(InsnPop.Instance);
insnStack.Push(new InsnPush(cont));
insnStack.Push(new InsnPush(returnValue));
insnStack.Push(new InsnCall(1, info));
Insns = insnStack.ToSList();
Stack = SList.Nil<IValue>();
}
}
private IValue Run(ISList<IInsn> insns)
{
VM vm = new VM(
insns,
SList.Nil<IValue>(),
mEnv,
SList.Nil<KeyValuePair<IValue, IValue>>()
);
while (true)
{
try
{
return vm.Run();
}
catch (RheaException e)
{
Console.WriteLine("{0}: {1}", e.Info, e.Message);
ValueCont cont = new ValueCont(
SList.Nil<IInsn>(),
SList.Nil<IValue>(),
vm.Env,
SList.Nil<KeyValuePair<IValue, IValue>>()
);
vm.SetCont(null, cont, e.Info);
}
}
}