public override Expr reduce()
{
Expr x = gen();
Temp t = new Temp(Type);
CurrentGenerator.Temp(t);
CurrentGenerator.Set(t, x);
return(t);
}
public override Expr reduce()
{
foreach (var item in FunParams)
{
CurrentGenerator.Param(item);
}
Temp t = new Temp(Func.Params.ReturnType);
CurrentGenerator.Temp(t);
CurrentGenerator.Call(t, Func);
CurrentGenerator.CallEnd();
return(t);
}
public override Expr gen()
{
int f = CurrentGenerator.AllocLabel();
int a = CurrentGenerator.AllocLabel();
Temp t = new Temp(Type);
CurrentGenerator.Temp(t);
jumping(0, f);
CurrentGenerator.Set(t, Constant.True);
CurrentGenerator.Goto(a);
CurrentGenerator.Label(f);
CurrentGenerator.Set(t, Constant.False);
CurrentGenerator.Label(a);
return(t);
}
public override void gen(int begin, int after)
{
if (Parent.Params.ReturnType != ReserveType.Void)
{
if (!ReserveType.ConvertableT1T2(Parent.Params.ReturnType, ReturnVal.Type))
{
throw new TypeMisMatchException(this.lexline, ReturnVal.Type, Parent.Params.ReturnType.ToString());
}
Temp t = new Temp(Parent.Params.ReturnType);
CurrentGenerator.Temp(t);
new Set(t, ReturnVal).gen(begin, after);
CurrentGenerator.Return(t);
}
else
{
CurrentGenerator.Return(null);
}
//emitLabel(Parent.ExitLabel);
}
public override void gen(int begin, int after)
{
if (Caller.FunParams.Count() > 0)
{
foreach (var item in Caller.FunParams)
{
if (item.Param is FuncCall)
{
Temp t = new Temp(Caller.Func.Params.ReturnType);
CurrentGenerator.Temp(t);
emitfunSet(item.Param, t);
CurrentGenerator.Param(t);
}
else
{
CurrentGenerator.Param(item);
}
}
}
CurrentGenerator.Label(CurrentGenerator.AllocLabel());
CurrentGenerator.Call(Caller);
CurrentGenerator.CallEnd();
}
//public int newlabel()
//{
// return CurrentGenerator.AllocLabel();
//}
//public void emitLabel(int i)
//{
// CurrentGenerator.Label("L" + i.ToString());
//}
//public void emit(string s)
//{
// CurrentIO.EmitLine(s);
//}
//public void emitSrc(string s)
//{
// CurrentIO.EmitSource(s);
//}
public void emitfunSet(Expr exp, Expr toVar)
{
FuncCall c = exp as FuncCall;
if (c.FunParams?.Count() > 0)
{
foreach (PassParam item in c.FunParams)
{
if (item.Param is FuncCall)
{
Temp t = new Temp(toVar.Type);
CurrentGenerator.Temp(t);
emitfunSet(item.Param, t);
CurrentGenerator.Param(t);
}
else
{
CurrentGenerator.Param(item);
}
}
}
CurrentGenerator.Call(toVar, c.Func);
CurrentGenerator.CallEnd();
}