// creates specific operation like index, initlist, objectconst ets.
public AleOperation(string name, AleOperationType type)
{
string s = name.Trim();
int n = s.Length;
for (int i = 0; i < n; i++)
{
if (Char.IsWhiteSpace(s, i))
{
throw new System.ArgumentException("Invalid operation name");
}
}
AleOperationType[] validTypes = { AleOperationType.Index, AleOperationType.InitList, AleOperationType.ObjectConst, AleOperationType.KeyValue, AleOperationType.PropertyValue };
if (Array.IndexOf(validTypes, type) < 0)
{
throw new System.ArgumentException("Invalid operation type");
}
_Name = s;
_Hash = _Name.GetHashCode();
_Associativity = 0;
_Precedence = 0;
_InstanceTypeCode = TypeCode.Empty;
_OperationType = type;
_Flags = AleString.HasAlphaNumChar(name);
Parameters = null;
Evaluator = null;
}
// creates operator
public AleOperation(string name, int precedence, uint associativity, AleOperationType type = AleOperationType.Evaluation)
{
string s = name.Trim();
if (!CheckOperatorName(s))
{
throw new System.ArgumentException("Invalid operator name");
}
if ((associativity == 0) ||
((associativity & OPERATOR_PREFIX) == OPERATOR_PREFIX) ||
((associativity & OPERATOR_POSTFIX) == OPERATOR_POSTFIX) ||
((associativity & OPERATOR_INFIX) == OPERATOR_INFIX))
{
throw new System.ArgumentException("Invalid operator associativity");
}
AleOperationType[] validTypes = { AleOperationType.Evaluation, AleOperationType.Assignment, AleOperationType.CompoundAssignment, AleOperationType.Increment, AleOperationType.MemberAccess, AleOperationType.ElementAccess };
if (Array.IndexOf(validTypes, type) < 0)
{
throw new System.ArgumentException("Invalid operation type");
}
_Name = s;
_Hash = _Name.GetHashCode();
_Associativity = associativity;
_Precedence = precedence;
_InstanceTypeCode = TypeCode.Empty;
_OperationType = type;
_Flags = AleString.HasAlphaNumChar(name) | (name.IndexOf(' ') >= 0 ? OPERATOR_OPTION_HASWHITESPACE : 0);
Parameters = null;
Evaluator = null;
}
// creates function or method
public AleOperation(string name)
{
string s = name.Trim();
if (!CheckFunctionName(s))
{
throw new System.ArgumentException("Invalid function name");
}
_Name = s;
_Hash = _Name.GetHashCode();
_Associativity = 0;
_Precedence = 0;
_InstanceTypeCode = TypeCode.Empty;
_OperationType = AleOperationType.Evaluation;
_Flags = AleString.HasAlphaNumChar(name);
Parameters = null;
Evaluator = null;
}
private bool CheckFunctionName(string name)
{
if (String.IsNullOrEmpty(name) || !AleString.IsCharAlpha(name, 0))
{
return(false);
}
int[] textUnits = StringInfo.ParseCombiningCharacters(name);
int n = textUnits.Length;
for (int i = 1; i < n; i++)
{
if (!AleString.IsCharAlphaNum(name, textUnits[i]))
{
return(false);
}
}
return(true);
}