repos/eliben-pycparser-129d32e/examples/serialize_ast.py

#-----------------------------------------------------------------
# pycparser: serialize_ast.py
#
# Simple example of serializing AST
#
# Hart Chu [https://github.com/CtheSky]
# Eli Bendersky [https://eli.thegreenplace.net/]
# License: BSD
#-----------------------------------------------------------------
import pickle
import sys

sys.path.extend(['.', '..'])
from pycparser import c_parser

text = r"""
void func(void)
{
  x = 1;
}
"""

if __name__ == '__main__':
    parser = c_parser.CParser()
    ast = parser.parse(text)
    dump_filename = 'ast.pickle'

    with open(dump_filename, 'wb') as f:
        pickle.dump(ast, f, protocol=pickle.HIGHEST_PROTOCOL)

    # Deserialize.
    with open(dump_filename, 'rb') as f:
        ast = pickle.load(f)
        ast.show()