public static ParamLessInstruction GetAssignInstructionForDatSymbolType(DatSymbolType type)
{
ParamLessInstruction instruction = new ParamLessInstruction();
switch (type)
{
case (DatSymbolType.Int):
{
instruction = new Assign();
break;
}
case (DatSymbolType.String):
{
instruction = new AssignString(); //TODO when to use AssignStringRef?
break;
}
case (DatSymbolType.Func):
{
instruction = new AssignFunc();
break;
}
case (DatSymbolType.Float):
{
instruction = new AssignFloat();
break;
}
case (DatSymbolType.Instance): // TODO check if it happens
case (DatSymbolType.Class):
{
instruction = new AssignInstance();
break;
}
}
return(instruction);
}
public static ParamLessInstruction GetInstructionForOperator(
string operatorVal,
bool twoArg = true,
DatSymbolType leftSideType = DatSymbolType.Void)
{
ParamLessInstruction instruction = new ParamLessInstruction();
switch (operatorVal)
{
case "=":
instruction = GetAssignInstructionForDatSymbolType(leftSideType);
break;
case "+=":
instruction = new AssignAdd();
break;
case "-=":
instruction = new AssignSubtract();
break;
case "*=":
instruction = new AssignMultiply();
break;
case "/=":
instruction = new AssignDivide();
break;
case "+":
if (twoArg)
{
instruction = new Add();
}
else
{
instruction = new Plus();
}
break;
case "-":
if (twoArg)
{
instruction = new Subtract();
}
else
{
instruction = new Minus();
}
break;
case "<<":
instruction = new ShiftLeft();
break;
case ">>":
instruction = new ShiftRight();
break;
case ">":
instruction = new Greater();
break;
case ">=":
instruction = new GreaterOrEqual();
break;
case "<":
instruction = new Less();
break;
case "<=":
instruction = new LessOrEqual();
break;
case "==":
instruction = new Equal();
break;
case "!=":
instruction = new NotEqual();
break;
case "!":
instruction = new Not();
break;
case "~":
instruction = new Negate();
break;
case "*":
instruction = new Multiply();
break;
case "/":
instruction = new Divide();
break;
case "%":
instruction = new Modulo();
break;
case "&":
instruction = new BitAnd();
break;
case "|":
instruction = new BitOr();
break;
case "&&":
instruction = new LogAnd();
break;
case "||":
instruction = new LogOr();
break;
}
if (instruction == null)
{
throw new Exception($"'{operatorVal}' does't have insctruction");
}
return(instruction);
}
