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#-----------------------------------------------------------------
# pycparser: func_defs.py
#
# Using pycparser for printing out all the functions defined in a
# C file.
#
# This is a simple example of traversing the AST generated by
# pycparser.
#
# Copyright (C) 2008-2015, Eli Bendersky
# License: BSD
#-----------------------------------------------------------------
from __future__ import print_function
import sys
from pycparser import c_parser, c_ast, parse_file
# A simple visitor for FuncDef nodes that prints the names and
# locations of function definitions.
class FuncDefVisitor(c_ast.NodeVisitor):
def visit_FuncDef(self, node):
print('%s at %s' % (node.decl.name, node.decl.coord))
def show_func_defs(filename):
# Note that cpp is used. Provide a path to your own cpp or
# make sure one exists in PATH.
ast = parse_file(filename, use_cpp=True)
v = FuncDefVisitor()
v.visit(ast)
if __name__ == "__main__":
if len(sys.argv) > 1:
filename = sys.argv[1]
else:
filename = 'examples/c_files/memmgr.c'
show_func_defs(filename)