mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-23 06:48:16 +00:00
63 lines
1.8 KiB
Python
63 lines
1.8 KiB
Python
# This file is part of the Trezor project.
|
|
#
|
|
# Copyright (C) 2012-2018 SatoshiLabs and contributors
|
|
#
|
|
# This library is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Lesser General Public License version 3
|
|
# as published by the Free Software Foundation.
|
|
#
|
|
# This library is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the License along with this library.
|
|
# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
|
|
|
|
from . import messages
|
|
|
|
map_type_to_class = {}
|
|
map_class_to_type = {}
|
|
|
|
|
|
def build_map():
|
|
for msg_name in dir(messages.MessageType):
|
|
if msg_name.startswith("__"):
|
|
continue
|
|
|
|
try:
|
|
msg_class = getattr(messages, msg_name)
|
|
except AttributeError:
|
|
raise ValueError(
|
|
"Implementation of protobuf message '%s' is missing" % msg_name
|
|
)
|
|
|
|
if msg_class.MESSAGE_WIRE_TYPE != getattr(messages.MessageType, msg_name):
|
|
raise ValueError(
|
|
"Inconsistent wire type and MessageType record for '%s'" % msg_class
|
|
)
|
|
|
|
register_message(msg_class)
|
|
|
|
|
|
def register_message(msg_class):
|
|
if msg_class.MESSAGE_WIRE_TYPE in map_type_to_class:
|
|
raise Exception(
|
|
"Message for wire type %s is already registered by %s"
|
|
% (msg_class.MESSAGE_WIRE_TYPE, get_class(msg_class.MESSAGE_WIRE_TYPE))
|
|
)
|
|
|
|
map_class_to_type[msg_class] = msg_class.MESSAGE_WIRE_TYPE
|
|
map_type_to_class[msg_class.MESSAGE_WIRE_TYPE] = msg_class
|
|
|
|
|
|
def get_type(msg):
|
|
return map_class_to_type[msg.__class__]
|
|
|
|
|
|
def get_class(t):
|
|
return map_type_to_class[t]
|
|
|
|
|
|
build_map()
|