1"""Generate the org.chromium.mojo.bindings.Callbacks interface"""
2
3import argparse
4import sys
5
6CALLBACK_TEMPLATE = ("""
7    /**
8      * A generic %d-argument callback.
9      *
10      * %s
11      */
12    interface Callback%d<%s> {
13        /**
14          * Call the callback.
15          */
16        public void call(%s);
17    }
18""")
19
20INTERFACE_TEMPLATE = (
21"""// Copyright 2014 The Chromium Authors. All rights reserved.
22// Use of this source code is governed by a BSD-style license that can be
23// found in the LICENSE file.
24
25// This file was generated using
26//     mojo/tools/generate_java_callback_interfaces.py
27
28package org.chromium.mojo.bindings;
29
30/**
31 * Contains a generic interface for callbacks.
32 */
33public interface Callbacks {
34%s
35}""")
36
37def GenerateCallback(nb_args):
38  params = '\n      * '.join(
39      ['@param <T%d> the type of argument %d.' % (i+1, i+1)
40       for i in xrange(nb_args)])
41  template_parameters = ', '.join(['T%d' % (i+1) for i in xrange(nb_args)])
42  callback_parameters = ', '.join(['T%d arg%d' % ((i+1), (i+1))
43                                   for i in xrange(nb_args)])
44  return CALLBACK_TEMPLATE % (nb_args, params, nb_args, template_parameters,
45                              callback_parameters)
46
47def main():
48  parser = argparse.ArgumentParser(
49      description="Generate org.chromium.mojo.bindings.Callbacks")
50  parser.add_argument("max_args", nargs=1, type=int,
51      help="maximal number of arguments to generate callbacks for")
52  args = parser.parse_args()
53  max_args = args.max_args[0]
54  print INTERFACE_TEMPLATE % ''.join([GenerateCallback(i+1)
55                                      for i in xrange(max_args)])
56  return 0
57
58if __name__ == "__main__":
59  sys.exit(main())
60