Ejemplo n.º 1
0
        public ExtensionMethodGroupExpression LookupExtensionMethod(Type extensionType, string name, SourceSpan location)
        {
            var openExtendedType = TypeManager.DropGenericTypeArguments(extensionType);

            var extendingTypes = _languageContext.DefaultBinderState.Binder.GetExtensionTypes(openExtendedType);

            var members =
                (
                    from extendingType in extendingTypes
                    where IsTypeVisible(extendingType)
                    let memberCache = TypeHandle.GetMemberCache(extendingType)
                                      from MemberInfo method in memberCache.FindExtensionMethods(
                        thisAssembly: extensionType.Assembly,
                        extensionType: openExtendedType,
                        name: name,
                        publicOnly: true)
                                      select method
                ).ToArray();


            if (members.Length == 0)
            {
                return(null);
            }

            return(new ExtensionMethodGroupExpression(
                       members,
                       extensionType,
                       location));
        }
Ejemplo n.º 2
0
        ///
        /// Looks for extension method in this namespace
        ///
        public ArrayList LookupExtensionMethod(Type extensionType, ClassOrStruct currentClass, string name)
        {
            ArrayList found = null;

            if (declspaces != null)
            {
                IEnumerator e = declspaces.Values.GetEnumerator();
                e.Reset();
                while (e.MoveNext())
                {
                    Class c = e.Current as Class;
                    if (c == null)
                    {
                        continue;
                    }

                    if (!c.IsStaticClass)
                    {
                        continue;
                    }

                    ArrayList res = c.MemberCache.FindExtensionMethods(extensionType, name, c != currentClass);
                    if (res == null)
                    {
                        continue;
                    }

                    if (found == null)
                    {
                        found = res;
                    }
                    else
                    {
                        found.AddRange(res);
                    }
                }
            }

            if (external_exmethod_classes == null)
            {
                return(found);
            }

            foreach (Type t in external_exmethod_classes)
            {
                MemberCache m   = TypeHandle.GetMemberCache(t);
                ArrayList   res = m.FindExtensionMethods(extensionType, name, true);
                if (res == null)
                {
                    continue;
                }

                if (found == null)
                {
                    found = res;
                }
                else
                {
                    found.AddRange(res);
                }
            }

            return(found);
        }