//
// Returns true when DynamicAttribute exists
//
public bool HasDynamicAttribute (MetadataImporter importer)
{
if (provider != null)
ReadAttribute (importer);
return flags != null;
}
//
// Returns true when object at local position has dynamic attribute flag
//
public bool IsDynamicObject (MetadataImporter importer)
{
if (provider != null)
ReadAttribute (importer);
return flags != null && Position < flags.Length && flags[Position];
}
void ReadAttribute (MetadataImporter importer)
{
IList<CustomAttributeData> cad;
if (provider is MemberInfo) {
cad = CustomAttributeData.GetCustomAttributes ((MemberInfo) provider);
} else if (provider is ParameterInfo) {
cad = CustomAttributeData.GetCustomAttributes ((ParameterInfo) provider);
} else {
provider = null;
return;
}
if (cad.Count > 0) {
foreach (var ca in cad) {
var dt = ca.Constructor.DeclaringType;
if (dt.Name != "DynamicAttribute" || dt.Namespace != CompilerServicesNamespace)
continue;
if (ca.ConstructorArguments.Count == 0) {
flags = single_attribute;
break;
}
var arg_type = ca.ConstructorArguments[0].ArgumentType;
if (arg_type.IsArray && MetaType.GetTypeCode (arg_type.GetElementType ()) == TypeCode.Boolean) {
var carg = (IList<CustomAttributeTypedArgument>) ca.ConstructorArguments[0].Value;
flags = new bool[carg.Count];
for (int i = 0; i < flags.Length; ++i) {
if (MetaType.GetTypeCode (carg[i].ArgumentType) == TypeCode.Boolean)
flags[i] = (bool) carg[i].Value;
}
break;
}
}
}
provider = null;
}
public ImportedTypeParameterDefinition (MetaType type, MetadataImporter importer)
: base (type, importer)
{
}
public ImportedGenericMethodDefinition (MethodInfo provider, TypeSpec type, AParametersCollection parameters, TypeParameterSpec[] tparams, MetadataImporter importer)
: base (provider, type, parameters, importer)
{
this.tparams = tparams;
}
public ImportedParameterMemberDefinition (PropertyInfo provider, TypeSpec type, AParametersCollection parameters, MetadataImporter importer)
: base (provider, type, importer)
{
this.parameters = parameters;
}
public ImportedMemberDefinition (MemberInfo member, TypeSpec type, MetadataImporter importer)
: base (member, importer)
{
this.type = type;
}
public ImportedDefinition (MemberInfo provider, MetadataImporter importer)
{
this.provider = provider;
this.importer = importer;
}
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;
}
