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trezor-firmware/firmware/nem_mosaics.py
2017-10-09 18:06:02 +01:00

101 lines
3.0 KiB
Python
Executable File

#!/usr/bin/env python2
import json, os, sys
import collections, numbers
from google.protobuf import json_format
from itertools import chain
sys.path.insert(0, os.path.join(os.path.dirname(__file__), "protob"))
import types_pb2 as types
HEADER_TEMPLATE = """
// This file is automatically generated by nem_mosaics.py -- DO NOT EDIT!
#ifndef __NEM_MOSAICS_H__
#define __NEM_MOSAICS_H__
#include "types.pb.h"
#define NEM_MOSAIC_DEFINITIONS_COUNT ({count})
extern const NEMMosaicDefinition NEM_MOSAIC_DEFINITIONS[NEM_MOSAIC_DEFINITIONS_COUNT];
extern const NEMMosaicDefinition *NEM_MOSAIC_DEFINITION_XEM;
#endif
""".lstrip()
CODE_TEMPLATE = """
// This file is automatically generated by nem_mosaics.py -- DO NOT EDIT!
#include "nem_mosaics.h"
const NEMMosaicDefinition NEM_MOSAIC_DEFINITIONS[NEM_MOSAIC_DEFINITIONS_COUNT] = {code};
const NEMMosaicDefinition *NEM_MOSAIC_DEFINITION_XEM = NEM_MOSAIC_DEFINITIONS;
""".lstrip()
def format_primitive(value):
if isinstance(value, bool):
return ("false", "true")[value]
elif isinstance(value, numbers.Number):
return str(value)
elif isinstance(value, basestring):
return json.dumps(value)
elif isinstance(value, collections.Sequence):
return "{ " + ", ".join(
format_primitive(item) for item in value
) + " }"
else:
raise TypeError
def format_struct(struct):
return "{\n" + "\n".join(
"\t.{0} = {1},".format(member, value) for member, value in struct.items()
) + "\n}"
def format_field(field, value):
if field.message_type is not None:
raise TypeError
elif field.enum_type:
return "{0}_{1}".format(field.enum_type.name, field.enum_type.values_by_number[value].name)
elif hasattr(value, "_values"):
return format_primitive(value._values)
else:
return format_primitive(value)
def field_to_meta(field, value):
if field.label == field.LABEL_REPEATED:
return ("{}_count".format(field.name), format_primitive(len(value)))
else:
return ("has_{}".format(field.name), format_primitive(True))
def message_to_struct(_message, proto):
message = json_format.ParseDict(_message, proto())
return collections.OrderedDict(chain.from_iterable(
(
field_to_meta(field, value),
(field.name, format_field(field, value)),
) for field, value in message.ListFields()
))
def format_message(message, proto):
return format_struct(message_to_struct(message, proto))
def format_messages(messages, proto):
return "{" + ",\n".join(
format_message(message, proto) for message in messages
) + "}"
if __name__ == "__main__":
os.chdir(os.path.abspath(os.path.dirname(__file__)))
messages = json.load(open("nem_mosaics.json"))
with open("nem_mosaics.h", "w+") as f:
f.write(HEADER_TEMPLATE.format(count=format_primitive(len(messages))))
with open("nem_mosaics.c", "w+") as f:
f.write(CODE_TEMPLATE.format(code=format_messages(messages, types.NEMMosaicDefinition)))