// Order so that the UseWhen==null case comes last.
public int CompareTo(object obj)
{
ConstructionAttribute ca = obj as ConstructionAttribute;
if (ca == null)
{
return(-1);
}
if ((UseWhen == null) && (ca.UseWhen != null))
{
return(1);
}
if ((UseWhen != null) && (ca.UseWhen == null))
{
return(-1);
}
return(0);
}
public static List <ConstructionAttribute> GetConstructionAttribute(Type type)
{
lock (cache)
{
if (!cache.ContainsKey(type))
{
var cas = new List <ConstructionAttribute>();
// Look for constructors
foreach (ConstructorInfo ci in type.GetConstructors())
{
if (!ci.IsDefined(typeof(ConstructionAttribute), true))
{
continue;
}
ConstructionAttribute ca = ci.GetCustomAttributes(typeof(ConstructionAttribute), true)[0] as ConstructionAttribute;
ca.TargetMember = ci;
cas.Add(ca);
}
// Look for factory methods
foreach (MethodInfo mi in type.GetMethods(BindingFlags.Static | BindingFlags.Public | BindingFlags.FlattenHierarchy))
{
if (!mi.IsDefined(typeof(ConstructionAttribute), true))
{
continue;
}
if (mi.ReturnType != type)
{
continue;
}
ConstructionAttribute ca = mi.GetCustomAttributes(typeof(ConstructionAttribute), true)[0] as ConstructionAttribute;
ca.TargetMember = mi;
cas.Add(ca);
}
// Order so that the UseWhen==null case comes last.
// Any other priorities could be included in here at some point if needed.
cas.Sort();
cache[type] = cas;
}
return(cache[type]);
}
}
