public override DataType staticTypeCheck()
{
DataType leftType = LeftOperand.staticTypeCheck();
DataType rightType = RightOperand.staticTypeCheck();
if (leftType == DataType.StringType || rightType == DataType.StringType)
{
Log.Error(String.Format("Type mismatch - {0}->{1}", leftType.ToString(), rightType.ToString()), Filename, Line, Position);
}
if (leftType == DataType.FloatType || rightType == DataType.FloatType)
{
if (leftType == DataType.IntegerType)
{
Log.Warning("Implicit IntType->FloatType cast", Filename, Line, Position);
TypeCastNode castNode = new TypeCastNode(DataType.FloatType, LeftOperand, LeftOperand.Filename, LeftOperand.Line, LeftOperand.Position);
LeftOperand = castNode;
}
if (rightType == DataType.IntegerType)
{
Log.Warning("Implicit IntType->FloatType cast", Filename, Line, Position);
TypeCastNode castNode = new TypeCastNode(DataType.FloatType, RightOperand, RightOperand.Filename, RightOperand.Line, RightOperand.Position);
RightOperand = castNode;
}
return(DataType.FloatType);
}
return(DataType.IntegerType);
}
private bool castOperator()
{
int line = _line;
int position = _position;
if (!accept("<"))
{
return(false);
}
string type = oneOf(_dataTypes);
if (type == null)
{
Log.Error("Expected type", _filename, line, position);
}
expect(">");
DataType dataType = _dataTypeMapping[type];
TypeCastNode node = new TypeCastNode(dataType, null, _filename, line, position);
_stack.Push(node);
return(true);
}