How To Have A Type In Closure Compiler Externs Without A Constructor

I am trying to make externs for the Google Closure Compiler for types that have no constructor. I have tried the following, but it gives me a Bad type annotation. Unknown type Wind

Solution 1:

The typical annotation for this pattern is:

/** @const */var WindowsMediaActiveX = {};

/**
 * Methods and properties for accessing a CD or DVD in its drive.
 * @constructor
 * @private
 */
WindowsMediaActiveX.Cdrom=function(){};

The @private annotation is the indication that the constructor is not meant to be directly called. However, the compiler will only report a warning on direct instantiations of the type when the accessControls warning group is enabled (on with VERBOSE warnings).

Edit: Answer updated to add the required @const annotation to the namespace. The access control annotations will be ignored otherwise.