function onRead( error, files ) {
		if ( error ) {
			debug( 'Encountered an error when reading file contents: %s', error.message );
			return clbk( error );
		}
		debug( 'Finished reading file contents.' );

		debug( 'Analyzing file ASTs...' );
		files = analyze( files );
		debug( 'Finished analysis.' );

		clbk( null, files );
	}
Callback invoked upon reading all file contents.

@private
@param {(Error|null)} error - error object
@param {ObjectArray} files - file contents
@returns {void}