public static AttributesBag Read (MemberInfo mi, MetadataImporter importer)
{
AttributesBag bag = null;
List<string> conditionals = null;
// It should not throw any loading exception
IList<CustomAttributeData> attrs = CustomAttributeData.GetCustomAttributes (mi);
foreach (var a in attrs) {
var dt = a.Constructor.DeclaringType;
string name = dt.Name;
if (name == "ObsoleteAttribute") {
if (dt.Namespace != "System")
continue;
if (bag == null)
bag = new AttributesBag ();
var args = a.ConstructorArguments;
if (args.Count == 1) {
bag.Obsolete = new ObsoleteAttribute ((string) args[0].Value);
} else if (args.Count == 2) {
bag.Obsolete = new ObsoleteAttribute ((string) args[0].Value, (bool) args[1].Value);
} else {
bag.Obsolete = new ObsoleteAttribute ();
}
continue;
}
if (name == "ConditionalAttribute") {
if (dt.Namespace != "System.Diagnostics")
continue;
if (bag == null)
bag = new AttributesBag ();
if (conditionals == null)
conditionals = new List<string> (2);
conditionals.Add ((string) a.ConstructorArguments[0].Value);
continue;
}
if (name == "CLSCompliantAttribute") {
if (dt.Namespace != "System")
continue;
if (bag == null)
bag = new AttributesBag ();
bag.CLSAttributeValue = (bool) a.ConstructorArguments[0].Value;
continue;
}
// Type only attributes
if (mi.MemberType == MemberTypes.TypeInfo || mi.MemberType == MemberTypes.NestedType) {
if (name == "DefaultMemberAttribute") {
if (dt.Namespace != "System.Reflection")
continue;
if (bag == null)
bag = new AttributesBag ();
bag.DefaultIndexerName = (string) a.ConstructorArguments[0].Value;
continue;
}
if (name == "AttributeUsageAttribute") {
if (dt.Namespace != "System")
continue;
if (bag == null)
bag = new AttributesBag ();
bag.AttributeUsage = new AttributeUsageAttribute ((AttributeTargets) a.ConstructorArguments[0].Value);
foreach (var named in a.NamedArguments) {
if (named.MemberInfo.Name == "AllowMultiple")
bag.AttributeUsage.AllowMultiple = (bool) named.TypedValue.Value;
else if (named.MemberInfo.Name == "Inherited")
bag.AttributeUsage.Inherited = (bool) named.TypedValue.Value;
}
continue;
}
// Interface only attribute
if (name == "CoClassAttribute") {
if (dt.Namespace != "System.Runtime.InteropServices")
continue;
if (bag == null)
bag = new AttributesBag ();
bag.CoClass = importer.ImportType ((MetaType) a.ConstructorArguments[0].Value);
continue;
}
}
}
if (bag == null)
return Default;
if (conditionals != null)
bag.Conditionals = conditionals.ToArray ();
return bag;
}
protected void ReadAttributes ()
{
cattrs = AttributesBag.Read (provider, importer);
}
protected virtual void ReadAttributes ()
{
cattrs = AttributesBag.Read (provider, null);
}