public static IEnumerable <Attribute> Attrs(this ICustomAttributeProvider cap, Type t)
{
if (cap == null)
{
return(null);
}
return(cap.Attrs(t, true));
}
public static IEnumerable <Attribute> Attrs(this ICustomAttributeProvider cap)
{
if (cap == null)
{
return(null);
}
return(cap.Attrs(typeof(Attribute)));
}
public static Attribute AttrOrNull(this ICustomAttributeProvider cap, Type t, bool inherit)
{
if (cap == null)
{
return(null);
}
return(cap.Attrs(t, inherit).SingleOrDefault());
}
public static IEnumerable <T> Attrs <T>(this ICustomAttributeProvider cap, bool inherit)
where T : Attribute
{
if (cap == null)
{
return(null);
}
return(cap.Attrs(typeof(T), inherit).Cast <T>());
}
public static String GetCSharpAttributesClause(this ICustomAttributeProvider cap, ToCSharpOptions opt)
{
if (cap.Attrs().Count() == 0)
{
return(String.Empty);
}
else
{
var buffer = new StringBuilder();
buffer.Append("[");
var prefix = String.Empty;
if (cap is ParameterInfo)
{
/*IsRetVal ain't work */
var mb = ((ParameterInfo)cap).Member;
if (mb is MethodInfo && ((MethodInfo)(mb)).ReturnParameter == cap)
{
prefix = "return: ";
}
}
// todo. implement this using CustomAttributeData
// that will preserve info about ctor and setters
var attrs = cap.GetCustomAttributes(false);
attrs.ForEach((attr, i) =>
{
buffer.Append(prefix);
buffer.Append(attr.GetType().GetCSharpRef(opt));
if (i != attrs.Count() - 1)
{
buffer.Append(", ");
}
});
buffer.Append("]");
return(buffer.ToString());
}
}
public static T AttrOrNull <T>(this ICustomAttributeProvider cap, bool inherit)
where T : Attribute
{
return(cap.Attrs <T>().SingleOrDefault());
}
public static IEnumerable <T> Attrs <T>(this ICustomAttributeProvider cap)
where T : Attribute
{
return(cap.Attrs <T>(true));
}
public static Attribute Attr(this ICustomAttributeProvider cap, Type t, bool inherit)
{
(cap != null).AssertTrue();
return(cap.Attrs(t, inherit).Single());
}
