public static bool HasProtocolAttribute(IType type, out string name)
{
foreach (var attrs in type.GetDefinition().GetAttributes())
{
if (attrs.AttributeType.Name == "ProtocolAttribute" && MonoCSharpCompletionEngine.IsFoundationNamespace(attrs.AttributeType.Namespace))
{
foreach (var na in attrs.NamedArguments)
{
if (na.Key.Name != "Name")
{
continue;
}
name = na.Value.ConstantValue as string;
if (name != null)
{
return(true);
}
}
}
}
name = null;
return(false);
}
protected override IEnumerable <object> GetValidMembers()
{
var type = Options.EnclosingType;
if (type == null || Options.EnclosingMember != null)
{
yield break;
}
foreach (var t in type.DirectBaseTypes)
{
string name;
if (!HasProtocolAttribute(t, out name))
{
continue;
}
var protocolType = Options.Document.Compilation.FindType(new FullTypeName(new TopLevelTypeName(t.Namespace, name)));
if (protocolType == null)
{
break;
}
foreach (var member in protocolType.GetMethods(null, GetMemberOptions.IgnoreInheritedMembers))
{
if (member.ImplementedInterfaceMembers.Any())
{
continue;
}
if (!cg.IsValidMember(member))
{
continue;
}
if (IsImplemented(type, member))
{
continue;
}
if (member.Attributes.Any(a => a.AttributeType.Name == "ExportAttribute" && MonoCSharpCompletionEngine.IsFoundationNamespace(a.AttributeType.Namespace)))
{
yield return(member);
}
}
foreach (var member in protocolType.GetProperties(null, GetMemberOptions.IgnoreInheritedMembers))
{
if (member.ImplementedInterfaceMembers.Any())
{
continue;
}
if (!cg.IsValidMember(member))
{
continue;
}
if (IsImplemented(type, member))
{
continue;
}
if (member.CanGet && member.Getter.Attributes.Any(a => a.AttributeType.Name == "ExportAttribute" && MonoCSharpCompletionEngine.IsFoundationNamespace(a.AttributeType.Namespace)) ||
member.CanSet && member.Setter.Attributes.Any(a => a.AttributeType.Name == "ExportAttribute" && MonoCSharpCompletionEngine.IsFoundationNamespace(a.AttributeType.Namespace)))
{
yield return(member);
}
}
}
}
static string GetProtocol(IMember member)
{
var attr = member.Attributes.FirstOrDefault(a => a.AttributeType.Name == "ExportAttribute" && MonoCSharpCompletionEngine.IsFoundationNamespace(a.AttributeType.Namespace));
if (attr == null || attr.PositionalArguments.Count == 0)
{
return(null);
}
return(attr.PositionalArguments.First().ConstantValue.ToString());
}