IEnumerable<IParameterizedMember> GetUserDefinedOperatorCandidates(IType type, string operatorName)
{
if (operatorName == null)
return EmptyList<IMethod>.Instance;
TypeCode c = ReflectionHelper.GetTypeCode(type);
if (TypeCode.Boolean <= c && c <= TypeCode.Decimal || c == TypeCode.String) {
// The .NET framework contains some of C#'s built-in operators as user-defined operators.
// However, we must not use those as user-defined operators (we would skip numeric promotion).
return EmptyList<IMethod>.Instance;
}
// C# 4.0 spec: §7.3.5 Candidate user-defined operators
var operators = type.GetMethods(m => m.IsOperator && m.Name == operatorName).ToList();
LiftUserDefinedOperators(operators);
return operators;
}