private static IEnumerable <AutoStartupData> AutoStartupDataForAssembly(Assembly assembly)
{
foreach (var attributeData in assembly.GetCustomAttributesData())
{
if (attributeData.Constructor.DeclaringType == null)
{
continue;
}
var attributeTypeName = attributeData.Constructor.DeclaringType.Name;
if (attributeTypeName != "OwinAutoStartup" && attributeTypeName != "OwinAutoStartupAttribute")
{
continue;
}
var data = new AutoStartupData();
data = attributeData.Constructor.GetParameters().Zip(attributeData.ConstructorArguments, (a, b) => new { a, b }).Aggregate(data, (c, d) => AddValue(c, d.a.Name, d.b.ArgumentType, d.b.Value));
if (attributeData.NamedArguments != null)
{
data = attributeData.NamedArguments.Aggregate(data, (c, d) => AddValue(c, d.MemberInfo.Name, d.TypedValue.ArgumentType, d.TypedValue.Value));
}
if (data != null)
{
yield return(data);
}
}
}
private static AutoStartupData AddValue(AutoStartupData data, string name, Type type, object value)
{
if (data == null)
{
return null;
}
if (string.Equals(name, "Type", StringComparison.OrdinalIgnoreCase) &&
type == typeof(Type) &&
data.Type == null)
{
data.Type = (Type)value;
return data;
}
if (string.Equals(name, "MethodName", StringComparison.OrdinalIgnoreCase) &&
type == typeof(string) &&
data.MethodName == null)
{
data.MethodName = (String)value;
return data;
}
return null;
}
private static AutoStartupData AddValue(AutoStartupData data, string name, Type type, object value)
{
if (data == null)
{
return(null);
}
if (string.Equals(name, "Type", StringComparison.OrdinalIgnoreCase) &&
type == typeof(Type) &&
data.Type == null)
{
data.Type = (Type)value;
return(data);
}
if (string.Equals(name, "MethodName", StringComparison.OrdinalIgnoreCase) &&
type == typeof(string) &&
data.MethodName == null)
{
data.MethodName = (String)value;
return(data);
}
return(null);
}
private static IEnumerable<AutoStartupData> AutoStartupDataForAssembly(Assembly assembly)
{
foreach (var attributeData in assembly.GetCustomAttributesData())
{
if (attributeData.Constructor.DeclaringType == null)
{
continue;
}
var attributeTypeName = attributeData.Constructor.DeclaringType.Name;
if (attributeTypeName != "OwinAutoStartup" && attributeTypeName != "OwinAutoStartupAttribute")
{
continue;
}
var data = new AutoStartupData();
data = attributeData.Constructor.GetParameters().Zip(attributeData.ConstructorArguments, (a, b) => new { a, b }).Aggregate(data, (c, d) => AddValue(c, d.a.Name, d.b.ArgumentType, d.b.Value));
if (attributeData.NamedArguments != null)
{
data = attributeData.NamedArguments.Aggregate(data, (c, d) => AddValue(c, d.MemberInfo.Name, d.TypedValue.ArgumentType, d.TypedValue.Value));
}
if (data != null)
{
yield return data;
}
}
}
