//Helper for getting a native custom marshaler
private static bool HasNativeCustomMarshaler(Type type, out INativeCustomMarshaler marshaler)
{
marshaler = null;
if (type == null)
{
return(false);
}
lock (s_customMarshalers)
{
if (!s_customMarshalers.TryGetValue(type, out marshaler))
{
Object[] customAttributes = type.GetCustomAttributes(typeof(NativeCustomMarshalerAttribute), false);
if (customAttributes.Length != 0)
{
marshaler = (customAttributes[0] as NativeCustomMarshalerAttribute).Marshaler;
}
s_customMarshalers.Add(type, marshaler);
}
}
return(marshaler != null);
}
/// <summary>
/// Constructs a new instance of the <see cref="NativeCustomMarshalerAttribute"/> class.
/// </summary>
/// <param name="type">Type that implements <see cref="INativeCustomMarshaler"/></param>
/// <exception cref="System.NullReferenceException">Thrown if the type is null.</exception>
/// <exception cref="System.ArgumentException">Thrown if the type does not implement <see cref="INativeCustomMarshaler"/>.</exception>
public NativeCustomMarshalerAttribute(Type type)
{
if (type == null)
throw new NullReferenceException("type");
if (!typeof(INativeCustomMarshaler).IsAssignableFrom(type))
throw new ArgumentException(String.Format("{0} does not implement INativeCustomMarshaler.", type.FullName));
m_marshaler = Activator.CreateInstance(type) as INativeCustomMarshaler;
}
/// <summary>
/// Constructs a new instance of the <see cref="NativeCustomMarshalerAttribute"/> class.
/// </summary>
/// <param name="type">Type that implements <see cref="INativeCustomMarshaler"/></param>
/// <exception cref="System.NullReferenceException">Thrown if the type is null.</exception>
/// <exception cref="System.ArgumentException">Thrown if the type does not implement <see cref="INativeCustomMarshaler"/>.</exception>
public NativeCustomMarshalerAttribute(Type type)
{
if (type == null)
{
throw new NullReferenceException("type");
}
if (!typeof(INativeCustomMarshaler).IsAssignableFrom(type))
{
throw new ArgumentException(String.Format("{0} does not implement INativeCustomMarshaler.", type.FullName));
}
m_marshaler = Activator.CreateInstance(type) as INativeCustomMarshaler;
}
