public static bool Add(out object answer, object left, object right)
{
if (left is int && right is int)
{
answer = (int)left + (int)right;
return(false);
}
answer = new TailCallInterpreter(CallFromPrimitive.Make((IApplicable)FixedObjectsVector.GenericAdd, left, right), null);
return(true);
}
public static bool IsLess(out object answer, object left, object right)
{
// Shortcut for fixnums
if (left is int && right is int)
{
answer = ((int)left < (int)right) ? Constant.sharpT : Constant.sharpF;
return(false);
}
else
{
answer = new TailCallInterpreter(CallFromPrimitive.Make((IApplicable)FixedObjectsVector.GenericLessP, left, right), null);
}
return(true);
}
public static bool Remainder(out object answer, object left, object right)
{
answer = new TailCallInterpreter(CallFromPrimitive.Make((IApplicable)FixedObjectsVector.GenericRemainder, left, right), null);
return(true);
}
public static bool IsPositive(out object answer, object arg)
{
answer = new TailCallInterpreter(CallFromPrimitive.Make((IApplicable)FixedObjectsVector.GenericPositiveP, arg), null);
return(true);
}
public override bool EvalStep(out object answer, ref Control expression, ref Environment environment)
{
#if DEBUG
Warm("-");
NoteCalls(this.rand0);
rand0TypeHistogram.Note(this.rand0Type);
NoteCalls(this.rand1);
rand1TypeHistogram.Note(this.rand1Type);
SCode.location = "PrimitiveLessThan";
#endif
// Eval argument1
object ev1;
Control unev = this.rand1;
Environment env = environment;
while (unev.EvalStep(out ev1, ref unev, ref env))
{
}
;
#if DEBUG
SCode.location = "PrimitiveLessThan";
#endif
if (ev1 == Interpreter.UnwindStack)
{
throw new NotImplementedException();
//((UnwinderState) env).AddFrame (new PrimitiveCombination2Frame0 (this, environment));
//answer = Interpreter.UnwindStack;
//environment = env;
//return false;
}
// Eval argument0
object ev0;
unev = this.rand0;
env = environment;
while (unev.EvalStep(out ev0, ref unev, ref env))
{
}
;
#if DEBUG
SCode.location = "PrimitiveLessThan";
#endif
if (ev0 == Interpreter.UnwindStack)
{
throw new NotImplementedException();
//((UnwinderState) env).AddFrame (new PrimitiveCombination2Frame0 (this, environment));
//answer = Interpreter.UnwindStack;
//environment = env;
//return false;
}
// less-than-fixnum?
// Shortcut for fixnums
if (ev0 is int && ev1 is int)
{
answer = ((int)ev0 < (int)ev1) ? Constant.sharpT : Constant.sharpF;
return(false);
}
else
{
answer = new TailCallInterpreter(CallFromPrimitive.Make((IApplicable)FixedObjectsVector.GenericLessP, ev0, ev1), null);
}
return(true);
}
