private ConstructorInfo FindConstructorInfo(Type type)
{
List <ConstructorInfo> ctors = type.GetConstructors(Flags).ToList();
switch (ctors.Count)
{
case 0:
throw new ConstructorNotFoundException("There are no public constructors.");
case 1:
return(ctors[0]); // Assume we use the only ctor
}
if (ParameterTypes == null)
{
throw new ConstructorNotFoundException("Multiple constructors defined and no search criteria given.");
}
ctors = ctors.Where(c => MatchUtilities.MatchesParameterTypes(c, ParameterTypes)).ToList();
switch (ctors.Count)
{
case 0:
throw new ConstructorNotFoundException("No constructors match the search criteria.");
case 1:
return(ctors[0]);
default:
var ctor = ctors.Find(c => c.GetParameters().Length == 0);
return(ctor ?? throw new ConstructorNotFoundException("Multiple constructors match the search criteria."));
}
}
private MethodInfo FindMethodInfo()
{
IEnumerable <MethodInfo> methods = ClassType.GetMethods(GetBindingFlags())
.Where(m => m.Name == MemberName);
if (GenericArguments != null)
{
methods = methods.Where(c => MatchUtilities.MatchesGenericArgumentCount(c, GenericArguments));
}
if (ParameterTypes != null)
{
methods = methods.Where(c => MatchUtilities.MatchesParameterCount(c, ParameterTypes));
}
var methodsList = methods.ToList();
if (methodsList.Count == 0)
{
throw new MethodNotFoundException(MemberName);
}
MethodInfo method = methodsList.Single();
if (method.IsGenericMethodDefinition)
{
if (GenericArguments == null)
{
GenericArguments = InferGenericArguments(method);
}
method = method.MakeGenericMethod(GenericArguments);
}
return(method);
}