public static MethodInfo GetMethod (Type type, MethodInfo method)
{
if (!IsValidGetMethodType (type))
throw new ArgumentException ("type is not TypeBuilder but " + type.GetType (), "type");
if (type is TypeBuilder && type.ContainsGenericParameters)
type = type.MakeGenericType (type.GetGenericArguments ());
if (!type.IsGenericType)
throw new ArgumentException ("type is not a generic type", "type");
if (!method.DeclaringType.IsGenericTypeDefinition)
throw new ArgumentException ("method declaring type is not a generic type definition", "method");
if (method.DeclaringType != type.GetGenericTypeDefinition ())
throw new ArgumentException ("method declaring type is not the generic type definition of type", "method");
if (method == null)
throw new NullReferenceException (); //MS raises this instead of an ArgumentNullException
MethodInfo res = type.GetMethod (method);
if (res == null)
throw new ArgumentException (String.Format ("method {0} not found in type {1}", method.Name, type));
return res;
}