public void CheckBitArithmetical(ExpState state)
{
if (state.ResultType.IsEnum)
{
return;
}
CheckArithmetical(state);
}
public void CheckArithmetical(ExpState state)
{
if (state == null)
{
if ((List.Str == "-" || List.Str == "+") && List.Prev().Str == List.Str)
{
List.ThrowException("Sorry, " + List.Str + List.Str + " is not implemented.");
}
List.ThrowException("Missing operand here.");
}
if (state.ResultType == typeof(char) && (StartType == typeof(int) || StartType == typeof(long)))
{
return;
}
if (state.ResultType == typeof(bool) && ((Sizes & OperandSizes.Bool) == OperandSizes.Bool))
{
return;
}
if ((state.ResultType == typeof(int) || state.ResultType == typeof(long)) && ((Sizes & OperandSizes.Integer) == OperandSizes.Integer))
{
return;
}
if ((state.ResultType == typeof(float) || state.ResultType == typeof(double)) && ((Sizes & OperandSizes.Real) == OperandSizes.Real))
{
return;
}
string s = "";
if (((Sizes & OperandSizes.Bool) == OperandSizes.Bool))
{
s += "bool ";
}
if (((Sizes & OperandSizes.Integer) == OperandSizes.Integer))
{
if (s != "")
{
s += "or ";
}
s += "integer ";
}
if (((Sizes & OperandSizes.Real) == OperandSizes.Real))
{
if (s != "")
{
s += "or ";
}
s += "real ";
}
List.ThrowException("Expected an operand of type '" + s + "'.");
}
public ExpState NextBitArithmetical(ExpState state)
{
if (state.ResultType.IsEnum)
{
if (state.ResultType == StartType)
{
return(state);
}
List.ThrowException("Enum types not the same");
return(null);
}
else
{
return(Next(state));
}
}
public ExpState NextComparison(ExpState state)
{
if (state.IsNull && StartType == null)
{
return(state);
}
if (state.IsNull && !StartType.IsValueType)
{
return(new ExpState(StartType));
}
if (state.ResultType == StartType)
{
return(state);
}
if (StartType == null && !state.ResultType.IsValueType)
{
return(state);
}
return(Next(state));
}
public OperandSize(LexList list, ExpState state, OperandSizes sizes, Emit e)
{
StartType = state.ResultType; Sizes = sizes; List = list; E = e;
}
public ExpState Next(ExpState state)
{
CheckArithmetical(state);
Type firstType = StartType;
Type secondType = state.ResultType;
if (firstType == secondType)
{
return(state);
}
if (firstType == typeof(bool) || secondType == typeof(bool))
{
List.ThrowException("Mixture of bool and non bool operands.");
}
switch (GetTypePair(firstType, secondType))
{
case Char_Char:
case Char_Int:
case Int_Char:
case Int_Int:
case Long_Long:
case Float_Float:
case Double_Double:
break;
case Char_Long:
case Int_Long:
ConvertNonTopToLong();
break;
case Long_Int:
case Long_Char:
ConvertTopToLong();
state = new ExpState(typeof(long));
break;
case Char_Double:
case Int_Double:
case Long_Double:
case Float_Double:
ConvertNonTopToDouble();
break;
case Double_Int:
case Double_Char:
case Double_Long:
case Double_Float:
ConvertTopToDouble();
state = new ExpState(typeof(double));
break;
case Char_Float:
case Int_Float:
case Long_Float:
case Float_Int:
case Float_Char:
case Float_Long:
ConvertTopToDouble();
ConvertNonTopToDouble();
state = new ExpState(typeof(double));
break;
}
return(state);
}
