723     def optimize_node(self, e, macros=None):  argument
724         if macros is None:
725             macros = {}
730             if name in macros:
731                 if macros[name] == kCppUndefinedMacro:
735                         value = int(macros[name])
738                         return ("defined", macros[name])
747             if name in macros:
749                     value = int(macros[name])
752                     expanded = ("ident", macros[name])
753                 return self.optimize_node(expanded, macros)
758             v = self.optimize_node(v, macros)
768             l = self.optimize_node(l, macros)
769             r = self.optimize_node(r, macros)
786             l = self.optimize_node(l, macros)
787             r = self.optimize_node(r, macros)
805     def optimize(self, macros=None):  argument
806         if macros is None:
807             macros = {}
808         self.expr = self.optimize_node(self.expr, macros)
843     def get_expr_optimize(self, expr, macros=None):  argument
844         if macros is None:
845             macros = {}
847         e.optimize(macros)
1197     def optimizeMacros(self, macros):  argument
1201                 b.expr.optimize(macros)
1299     def optimizeAll(self, macros):  argument
1300         self.optimizeMacros(macros)
1350         macros = set()
1358                         macros.add(macro_name)
1360                         macros.add(macro_name[0:paren_index])
1404                           block.tokens[i-1].id in macros):
1840     def parse(self, text, macros=None):  argument
1843         blocks.optimizeAll(macros)
1994         macros = {"__KERNEL__": kCppUndefinedMacro}
1995         self.assertEqual(self.parse(text, macros), expected)
2008         macros = {"__KERNEL__": kCppUndefinedMacro}
2009         self.assertEqual(self.parse(text, macros), expected)