o í@Ëa¤ã@sÀdZddlZddlZddlZdd„ZGdd„deƒZGdd„deƒZGd d „d eej ƒZ Gd d „d e ƒZ Gd d„de ƒZ Gdd„de ƒZ Gdd„de ƒZGdd„deejƒZGdd„deƒZdS)ao This module provides classes and functions for pass management. There are two kinds of passes: transformations and analysis. * ModuleAnalysis, FunctionAnalysis and NodeAnalysis are to be subclassed by any pass that collects information about the AST. * gather is used to gather (!) the result of an analyses on an AST node. * Backend is to be sub-classed by any pass that dumps the AST content. * dump is used to dump (!) the AST using the given backend. * Transformation is to be sub-classed by any pass that updates the AST. * apply is used to apply (sic) a transformation on an AST node. éNcCs t dd|¡}t dd|¡ ¡S)zs @