public Type Visit(NegativeStatement negativeStatement, FunctionGeneratorEnvironment arg)
{
negativeStatement.s1.Accept(this, arg);
Program.Emit(T42Instruction.NEG);
return(new IntType());
}
public IValue Visit(NegativeStatement negativeStatement)
{
var result = negativeStatement.s1.Accept(this);
var x = ((NumberValue)result).Number;
if (result.Type != ValueType.Number)
{
var err = new ErrorMessage();
throw new EvaluationError(err.ErrorOutput(ErrorMessage.ErrorCode.UOP_1, negativeStatement));
}
return(new NumberValue(0 - x));
}
public Type Visit(NegativeStatement negativeStatement)
{
var type = negativeStatement.s1.Accept(this);
var type_text = type.GetType().Name;
if (IsVoidType(type_text))
{
var err = new TypeErrorMessage();
throw new TypeException(err.ErrorOutput(TypeErrorMessage.ErrorCode.ASN_2, negativeStatement));
}
if (type_text != "IntType")
{
var err = new TypeErrorMessage();
throw new TypeException(err.ErrorOutput(TypeErrorMessage.ErrorCode.UOP_2, negativeStatement));
}
return(type);
}
public Statement Visit(NegativeStatement negativeStatement)
{
negativeStatement.s1.Accept(this);
return(null);
}
public Void Visit(NegativeStatement negativeStatement, SortedSet <string> free)
{
negativeStatement.s1.Accept(this, free);
return(null);
}
