| # Copyright 2014 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| # |
| # Naclize *.S files. |
| |
| import sys |
| |
| |
| class RewriterBase(object): |
| """Converts a .S file to a NaCl compatible one.""" |
| |
| def __init__(self, file_name): |
| self.__file_name = file_name |
| self._result = ['// Generated by %s from' % sys.argv[0], |
| '// %s. Do not edit.' % file_name] |
| |
| def _rewriter(self, line): |
| """Tries to rewrite the line. |
| |
| Returns True if the line is actually rewritten. A derived class must |
| override the method.""" |
| raise NotImplementedError('Please implement this in a derived class.') |
| |
| def rewrite(self): |
| with open(self.__file_name) as f: |
| for line in f.readlines(): |
| if self._rewriter(line): |
| continue |
| # If neither of them consumes the line, just add it to _result. |
| self._result.append(line.rstrip('\n')) |
| |
| def print_result(self): |
| """Prints the _result to stdout.""" |
| print('\n'.join(self._result)) |
