Tools/compiler/demo.py

   1 #! /usr/bin/env python
   2
   3 """Print names of all methods defined in module
   4
   5 This script demonstrates use of the visitor interface of the compiler
   6 package.
   7 """
   8
   9 import compiler
  10
  11 class MethodFinder:
  12     """Print the names of all the methods
  13
  14     Each visit method takes two arguments, the node and its current
  15     scope.  The scope is the name of the current class or None.
  16     """
  17
  18     def visitClass(self, node, scope=None):
  19         self.visit(node.code, node.name)
  20
  21     def visitFunction(self, node, scope=None):
  22         if scope is not None:
  23             print "%s.%s" % (scope, node.name)
  24         self.visit(node.code, None)
  25
  26 def main(files):
  27     mf = MethodFinder()
  28     for file in files:
  29         f = open(file)
  30         buf = f.read()
  31         f.close()
  32         ast = compiler.parse(buf)
  33         compiler.walk(ast, mf)
  34
  35 if __name__ == "__main__":
  36     import sys
  37
  38     main(sys.argv[1:])