Static Matcher Registration

[justindbaur]

Some matchers will require me to actually call the setup expression, for this I will need to generate a special version of the pretend interface that can be called and can return the captured arguments.

Right before I call the setup expression I need to setup a listener something like:

var capturer = SpecialClass();
MatcherListener.StartListening();
setupExpression(capturer);
var matcherCaptures = MatcherListener.EndListening();
var argumentCaptures = capturer.Retrieve();

// Do matching