blob: f8a7211187cb51711e486be2eb5c3282e278f846 [file] [log] [blame]
Rich Lanea06d0c32013-03-25 08:52:03 -07001# Copyright 2013, Big Switch Networks, Inc.
2#
3# LoxiGen is licensed under the Eclipse Public License, version 1.0 (EPL), with
4# the following special exception:
5#
6# LOXI Exception
7#
8# As a special exception to the terms of the EPL, you may distribute libraries
9# generated by LoxiGen (LoxiGen Libraries) under the terms of your choice, provided
10# that copyright and licensing notices generated by LoxiGen are not altered or removed
11# from the LoxiGen Libraries and the notice provided below is (i) included in
12# the LoxiGen Libraries, if distributed in source code form and (ii) included in any
13# documentation for the LoxiGen Libraries, if distributed in binary form.
14#
15# Notice: "Copyright 2013, Big Switch Networks, Inc. This library was generated by the LoxiGen Compiler."
16#
17# You may not use this file except in compliance with the EPL or LOXI Exception. You may obtain
18# a copy of the EPL at:
19#
20# http://www.eclipse.org/legal/epl-v10.html
21#
22# Unless required by applicable law or agreed to in writing, software
23# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
24# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
25# EPL for the specific language governing permissions and limitations
26# under the EPL.
27
Rich Lane9d98adf2013-11-29 18:37:24 -080028from collections import defaultdict
Rich Lane1cd97912014-09-26 15:51:38 -070029import os
Andreas Wundsam5630c422013-11-15 13:43:11 -080030import loxi_globals
Andreas Wundsam5420b952013-11-15 13:41:01 -080031import template_utils
Rich Lanea06d0c32013-03-25 08:52:03 -070032import loxi_utils.loxi_utils as utils
33import util
Rich Lane002e70c2013-05-09 17:08:16 -070034from loxi_ir import *
Rich Lanea06d0c32013-03-25 08:52:03 -070035
Rich Lane9d98adf2013-11-29 18:37:24 -080036# Map from inheritance root to module name
37roots = {
38 'of_header': 'message',
39 'of_action': 'action',
Rich Lane2c9938e2013-12-09 17:20:12 -080040 'of_action_id': 'action_id',
Rich Lane9d98adf2013-11-29 18:37:24 -080041 'of_oxm': 'oxm',
42 'of_instruction': 'instruction',
Rich Lane2c9938e2013-12-09 17:20:12 -080043 'of_instruction_id': 'instruction_id',
Rich Lane9d98adf2013-11-29 18:37:24 -080044 'of_meter_band': 'meter_band',
Rich Lanee6321992013-12-03 13:04:52 -080045 'of_bsn_tlv': 'bsn_tlv',
Rich Lane2dd8ed22014-10-03 16:17:09 -070046 'of_port_desc_prop': 'port_desc_prop',
47 'of_port_stats_prop': 'port_stats_prop',
48 'of_port_mod_prop': 'port_mod_prop',
49 'of_table_mod_prop': 'table_mod_prop',
50 'of_queue_desc_prop': 'queue_desc_prop',
51 'of_queue_stats_prop': 'queue_stats_prop',
Rich Lanebabfc332014-10-17 18:05:19 -070052 'of_async_config_prop': 'async_config_prop',
53 'of_bundle_prop': 'bundle_prop',
54 #'of_queue_prop': 'queue_prop',
55 'of_role_prop': 'role_prop',
56 #'of_table_feature_prop': 'table_feature_prop',
57 'of_table_mod_prop': 'table_mod_prop',
Rich Lane9d98adf2013-11-29 18:37:24 -080058}
59
60# Return the module and class names for the generated Python class
61def generate_pyname(ofclass):
62 for root, module_name in roots.items():
63 if ofclass.name == root:
64 return module_name, module_name
65 elif ofclass.is_instanceof(root):
66 if root == 'of_header':
67 # The input files don't prefix message names
68 return module_name, ofclass.name[3:]
69 else:
70 return module_name, ofclass.name[len(root)+1:]
71 return 'common', ofclass.name[3:]
Rich Lanea06d0c32013-03-25 08:52:03 -070072
Rich Lane002e70c2013-05-09 17:08:16 -070073# Create intermediate representation, extended from the LOXI IR
Rich Lanea06d0c32013-03-25 08:52:03 -070074def build_ofclasses(version):
Rich Lane9d98adf2013-11-29 18:37:24 -080075 modules = defaultdict(list)
Andreas Wundsam5630c422013-11-15 13:43:11 -080076 for ofclass in loxi_globals.ir[version].classes:
Rich Lane9d98adf2013-11-29 18:37:24 -080077 module_name, ofclass.pyname = generate_pyname(ofclass)
78 modules[module_name].append(ofclass)
79 return modules
Rich Lanea06d0c32013-03-25 08:52:03 -070080
Rich Lane1cd97912014-09-26 15:51:38 -070081def codegen(install_dir):
82 def render(name, template_name=None, **ctx):
83 if template_name is None:
84 template_name = os.path.basename(name)
85 with template_utils.open_output(install_dir, name) as out:
86 util.render_template(out, template_name, **ctx)
Rich Lanea06d0c32013-03-25 08:52:03 -070087
Rich Lane1cd97912014-09-26 15:51:38 -070088 render('__init__.py', template_name='toplevel_init.py')
89 render('pp.py')
90 render('generic_util.py')
Rich Lanea06d0c32013-03-25 08:52:03 -070091
Rich Lane6d753442014-10-08 13:56:12 -070092 for version in loxi_globals.OFVersions.all_supported:
93 subdir = 'of' + version.version.replace('.', '')
Rich Lane1cd97912014-09-26 15:51:38 -070094 modules = build_ofclasses(version)
Rich Lane2c9938e2013-12-09 17:20:12 -080095
Rich Lane1cd97912014-09-26 15:51:38 -070096 render(os.path.join(subdir, '__init__.py'), template_name='init.py',
97 version=version, modules=modules.keys())
Rich Laneea693752013-03-18 11:05:45 -070098
Rich Lane1cd97912014-09-26 15:51:38 -070099 render(os.path.join(subdir, 'util.py'), version=version)
Rich Lanea06d0c32013-03-25 08:52:03 -0700100
Rich Lane1cd97912014-09-26 15:51:38 -0700101 render(os.path.join(subdir, 'const.py'), version=version,
102 enums=loxi_globals.ir[version].enums)
Rich Lanea06d0c32013-03-25 08:52:03 -0700103
Rich Lane1cd97912014-09-26 15:51:38 -0700104 args_by_module = {
105 'common': { 'extra_template' : '_common_extra.py' },
106 'message': { 'extra_template' : '_message_extra.py' },
107 }
Rich Lanee02314c2013-05-02 16:42:04 -0700108
Rich Lane1cd97912014-09-26 15:51:38 -0700109 for name, ofclasses in modules.items():
110 args = args_by_module.get(name, {})
111 render(os.path.join(subdir, name + '.py'), template_name='module.py',
112 version=version, ofclasses=ofclasses, modules=modules.keys(),
113 **args)