Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 1 | :: # 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 | :: |
| 28 | :: # TODO coalesce format strings |
Rich Lane | 002e70c | 2013-05-09 17:08:16 -0700 | [diff] [blame] | 29 | :: from loxi_ir import * |
Rich Lane | da11f8b | 2013-06-19 15:53:25 -0700 | [diff] [blame] | 30 | :: from py_gen.oftype import gen_unpack_expr |
Rich Lane | 57026dc | 2013-05-01 10:13:16 -0700 | [diff] [blame] | 31 | if type(buf) == loxi.generic_util.OFReader: |
| 32 | reader = buf |
| 33 | else: |
| 34 | reader = loxi.generic_util.OFReader(buf) |
Rich Lane | 193317b | 2013-05-01 12:09:42 -0700 | [diff] [blame] | 35 | :: field_length_members = {} |
Rich Lane | 8ca3b77 | 2013-04-30 13:36:55 -0700 | [diff] [blame] | 36 | :: for m in ofclass.members: |
Rich Lane | 002e70c | 2013-05-09 17:08:16 -0700 | [diff] [blame] | 37 | :: if type(m) == OFPadMember: |
Rich Lane | 57026dc | 2013-05-01 10:13:16 -0700 | [diff] [blame] | 38 | reader.skip(${m.length}) |
Rich Lane | 002e70c | 2013-05-09 17:08:16 -0700 | [diff] [blame] | 39 | :: elif type(m) == OFLengthMember: |
Andreas Wundsam | 69ecfdc | 2013-09-17 13:50:12 -0700 | [diff] [blame] | 40 | _${m.name} = ${gen_unpack_expr(m.oftype, 'reader', version=version)} |
Rich Lane | 002e70c | 2013-05-09 17:08:16 -0700 | [diff] [blame] | 41 | :: elif type(m) == OFFieldLengthMember: |
Rich Lane | 193317b | 2013-05-01 12:09:42 -0700 | [diff] [blame] | 42 | :: field_length_members[m.field_name] = m |
Andreas Wundsam | 69ecfdc | 2013-09-17 13:50:12 -0700 | [diff] [blame] | 43 | _${m.name} = ${gen_unpack_expr(m.oftype, 'reader', version=version)} |
Rich Lane | 002e70c | 2013-05-09 17:08:16 -0700 | [diff] [blame] | 44 | :: elif type(m) == OFTypeMember: |
Andreas Wundsam | 69ecfdc | 2013-09-17 13:50:12 -0700 | [diff] [blame] | 45 | _${m.name} = ${gen_unpack_expr(m.oftype, 'reader', version=version)} |
Rich Lane | 57026dc | 2013-05-01 10:13:16 -0700 | [diff] [blame] | 46 | assert(_${m.name} == ${m.value}) |
Rich Lane | 002e70c | 2013-05-09 17:08:16 -0700 | [diff] [blame] | 47 | :: elif type(m) == OFDataMember: |
Rich Lane | 193317b | 2013-05-01 12:09:42 -0700 | [diff] [blame] | 48 | :: if m.name in field_length_members: |
| 49 | :: reader_expr = 'reader.slice(_%s)' % field_length_members[m.name].name |
| 50 | :: else: |
| 51 | :: reader_expr = 'reader' |
| 52 | :: #endif |
Andreas Wundsam | 69ecfdc | 2013-09-17 13:50:12 -0700 | [diff] [blame] | 53 | obj.${m.name} = ${gen_unpack_expr(m.oftype, reader_expr, version=version)} |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 54 | :: #endif |
| 55 | :: #endfor |
Rich Lane | a2de219 | 2013-11-29 17:58:32 -0800 | [diff] [blame] | 56 | :: if ofclass.params.get('length_includes_align') != None: |
Rich Lane | b564efc | 2013-07-23 14:19:29 -0700 | [diff] [blame] | 57 | reader.skip_align() |
Rich Lane | 2216080 | 2013-05-01 14:04:23 -0700 | [diff] [blame] | 58 | :: #endif |