matches

Returns true if @error matches @domain and @code, false otherwise. In particular, when @error is null, false will be returned.

If @domain contains a FAILED (or otherwise generic) error code, you should generally not check for it explicitly, but should instead treat any not-explicitly-recognized error code as being equivalent to the FAILED code. This way, if the domain is extended in the future to provide a more specific error code for a certain case, your code will still work.

Parameters