/// <summary>
/// Get any constraints for the specified <see cref="TypeParameter"/> on this method, or on the base virtual method if this method is an override.
/// </summary>
public List <TypeParameterConstraint> GetTypeParameterConstraints(TypeParameter typeParameter)
{
// Override methods don't specify constraints - they inherit them from the base virtual method.
// In order to handle invalid code, just look in the first occurrence of constraints, searching
// any base method if the current one is an override.
if (_constraintClauses != null && _constraintClauses.Count > 0)
{
foreach (ConstraintClause constraintClause in _constraintClauses)
{
if (constraintClause.TypeParameter.Reference == typeParameter)
{
return(constraintClause.Constraints);
}
}
}
else
{
MethodRef baseMethodRef = FindBaseMethod();
if (baseMethodRef != null)
{
// If the constraints are from a base method, we have to translate the type parameter
int index = FindTypeParameterIndex(typeParameter);
TypeParameterRef typeParameterRef = baseMethodRef.GetTypeParameter(index);
return(baseMethodRef.GetTypeParameterConstraints(typeParameterRef));
}
}
return(null);
}