/// <summary>
/// Gets all the extension methods which can match a given name and extending a given Type
/// </summary>
/// <param name="name">The name.</param>
/// <param name="extendedType">The extended type.</param>
public static List <IOverloadableMemberDescriptor> GetExtensionMethodsByNameAndType(string name,
Type extendedType)
{
List <UnresolvedGenericMethod> unresolvedGenerics;
lock (s_Lock)
{
unresolvedGenerics = s_UnresolvedGenericsRegistry.Find(name).ToList();
}
foreach (var ugm in unresolvedGenerics)
{
var args = ugm.Method.GetParameters();
if (args.Length == 0)
{
continue;
}
var extensionType = args[0].ParameterType;
var genericType = GetGenericMatch(extensionType, extendedType);
if (ugm.AlreadyAddedTypes.Add(genericType))
{
if (genericType != null)
{
var mi = InstantiateMethodInfo(ugm.Method, extensionType, genericType, extendedType);
if (mi != null)
{
if (!MethodMemberDescriptor.CheckMethodIsCompatible(mi, false))
{
continue;
}
var desc = new MethodMemberDescriptor(mi, ugm.AccessMode);
s_Registry.Add(ugm.Method.Name, desc);
++s_ExtensionMethodChangeVersion;
}
}
}
}
return(s_Registry.Find(name)
.Where(d => d.ExtensionMethodType != null &&
Framework.Do.IsAssignableFrom(d.ExtensionMethodType, extendedType))
.ToList());
}
/// <summary>
/// Registers an extension Type (that is a type containing extension methods)
/// </summary>
/// <param name="type">The type.</param>
/// <param name="mode">The InteropAccessMode.</param>
public static void RegisterExtensionType(Type type, InteropAccessMode mode = InteropAccessMode.Default)
{
lock (s_Lock)
{
bool changesDone = false;
foreach (MethodInfo mi in type.GetMethods().Where(_mi => _mi.IsStatic))
{
if (mi.GetCustomAttributes(typeof(ExtensionAttribute), false).Length == 0)
{
continue;
}
if (mi.ContainsGenericParameters)
{
s_UnresolvedGenericsRegistry.Add(mi.Name, new UnresolvedGenericMethod(mi, mode));
changesDone = true;
continue;
}
if (!MethodMemberDescriptor.CheckMethodIsCompatible(mi, false))
{
continue;
}
var desc = new MethodMemberDescriptor(mi, mode);
s_Registry.Add(mi.Name, desc);
changesDone = true;
}
if (changesDone)
{
++s_ExtensionMethodChangeVersion;
}
}
}
