from __future__ import unicode_literals
'''Generate header file for nanopb from a ProtoBuf FileDescriptorSet.'''
-nanopb_version = "nanopb-0.3.6-dev"
+nanopb_version = "nanopb-0.3.8-dev"
import sys
import re
for i, x in enumerate(self.values):
result += '\n#define %s %s' % (self.value_longnames[i], x[0])
+ if self.options.enum_to_string:
+ result += '\nconst char *%s_name(%s v);\n' % (self.names, self.names)
+
+ return result
+
+ def enum_to_string_definition(self):
+ if not self.options.enum_to_string:
+ return ""
+
+ result = 'const char *%s_name(%s v) {\n' % (self.names, self.names)
+ result += ' switch (v) {\n'
+
+ for ((enumname, _), strname) in zip(self.values, self.value_longnames):
+ # Strip off the leading type name from the string value.
+ strval = str(strname)[len(str(self.names)) + 1:]
+ result += ' case %s: return "%s";\n' % (enumname, strval)
+
+ result += ' }\n'
+ result += ' return "unknown";\n'
+ result += '}\n'
+
return result
class FieldMaxSize:
self.worst = worst
self.worst_field = field_name
- self.checks = checks
+ self.checks = list(checks)
def extend(self, extend, field_name = None):
self.worst = max(self.worst, extend.worst)
self.enc_size = None
self.ctype = None
+ if field_options.type == nanopb_pb2.FT_INLINE:
+ # Before nanopb-0.3.8, fixed length bytes arrays were specified
+ # by setting type to FT_INLINE. But to handle pointer typed fields,
+ # it makes sense to have it as a separate option.
+ field_options.type = nanopb_pb2.FT_STATIC
+ field_options.fixed_length = True
+
# Parse field options
if field_options.HasField("max_size"):
self.max_size = field_options.max_size
+
+ if desc.type == FieldD.TYPE_STRING and field_options.HasField("max_length"):
+ # max_length overrides max_size for strings
+ self.max_size = field_options.max_length + 1
if field_options.HasField("max_count"):
self.max_count = field_options.max_count
# Check field rules, i.e. required/optional/repeated.
can_be_static = True
- if desc.label == FieldD.LABEL_REQUIRED:
- self.rules = 'REQUIRED'
- elif desc.label == FieldD.LABEL_OPTIONAL:
- self.rules = 'OPTIONAL'
- elif desc.label == FieldD.LABEL_REPEATED:
+ if desc.label == FieldD.LABEL_REPEATED:
self.rules = 'REPEATED'
if self.max_count is None:
can_be_static = False
else:
self.array_decl = '[%d]' % self.max_count
+ elif field_options.proto3:
+ self.rules = 'SINGULAR'
+ elif desc.label == FieldD.LABEL_REQUIRED:
+ self.rules = 'REQUIRED'
+ elif desc.label == FieldD.LABEL_OPTIONAL:
+ self.rules = 'OPTIONAL'
else:
raise NotImplementedError(desc.label)
self.array_decl += '[%d]' % self.max_size
self.enc_size = varint_max_size(self.max_size) + self.max_size
elif desc.type == FieldD.TYPE_BYTES:
- self.pbtype = 'BYTES'
- if self.allocation == 'STATIC':
- self.ctype = self.struct_name + self.name + 't'
+ if field_options.fixed_length:
+ self.pbtype = 'FIXED_LENGTH_BYTES'
self.enc_size = varint_max_size(self.max_size) + self.max_size
- elif self.allocation == 'POINTER':
+ self.ctype = 'pb_byte_t'
+ self.array_decl += '[%d]' % self.max_size
+ else:
+ self.pbtype = 'BYTES'
self.ctype = 'pb_bytes_array_t'
+ if self.allocation == 'STATIC':
+ self.ctype = self.struct_name + self.name + 't'
+ self.enc_size = varint_max_size(self.max_size) + self.max_size
elif desc.type == FieldD.TYPE_MESSAGE:
self.pbtype = 'MESSAGE'
self.ctype = self.submsgname = names_from_type_name(desc.type_name)
if self.pbtype == 'MESSAGE':
# Use struct definition, so recursive submessages are possible
result += ' struct _%s *%s;' % (self.ctype, self.name)
+ elif self.pbtype == 'FIXED_LENGTH_BYTES':
+ # Pointer to fixed size array
+ result += ' %s (*%s)%s;' % (self.ctype, self.name, self.array_decl)
elif self.rules == 'REPEATED' and self.pbtype in ['STRING', 'BYTES']:
# String/bytes arrays need to be defined as pointers to pointers
result += ' %s **%s;' % (self.ctype, self.name)
inner_init = '""'
elif self.pbtype == 'BYTES':
inner_init = '{0, {0}}'
+ elif self.pbtype == 'FIXED_LENGTH_BYTES':
+ inner_init = '{0}'
elif self.pbtype in ('ENUM', 'UENUM'):
inner_init = '(%s)0' % self.ctype
else:
inner_init = '{0, {0}}'
else:
inner_init = '{%d, {%s}}' % (len(data), ','.join(data))
+ elif self.pbtype == 'FIXED_LENGTH_BYTES':
+ data = ['0x%02x' % ord(c) for c in self.default]
+ if len(data) == 0:
+ inner_init = '{0}'
+ else:
+ inner_init = '{%s}' % ','.join(data)
elif self.pbtype in ['FIXED32', 'UINT32']:
inner_init = str(self.default) + 'u'
elif self.pbtype in ['FIXED64', 'UINT64']:
elif self.pbtype == 'BYTES':
if self.allocation != 'STATIC':
return None # Not implemented
+ elif self.pbtype == 'FIXED_LENGTH_BYTES':
+ if self.allocation != 'STATIC':
+ return None # Not implemented
+ array_decl = '[%d]' % self.max_size
if declaration_only:
return 'extern const %s %s_default%s;' % (ctype, self.struct_name + self.name, array_decl)
identifier = '%s_%s_tag' % (self.struct_name, self.name)
return '#define %-40s %d\n' % (identifier, self.tag)
- def pb_field_t(self, prev_field_name):
+ def pb_field_t(self, prev_field_name, union_index = None):
'''Return the pb_field_t initializer to use in the constant array.
- prev_field_name is the name of the previous field or None.
+ prev_field_name is the name of the previous field or None. For OneOf
+ unions, union_index is the index of this field inside the OneOf.
'''
if self.rules == 'ONEOF':
result += '%-8s, ' % self.pbtype
result += '%s, ' % self.rules
result += '%-8s, ' % self.allocation
- result += '%s, ' % ("FIRST" if not prev_field_name else "OTHER")
+
+ if union_index is not None and union_index > 0:
+ result += 'UNION, '
+ elif prev_field_name is None:
+ result += 'FIRST, '
+ else:
+ result += 'OTHER, '
+
result += '%s, ' % self.struct_name
result += '%s, ' % self.name
result += '%s, ' % (prev_field_name or self.name)
result += '&%s_fields)' % self.submsgname
elif self.default is None:
result += '0)'
- elif self.pbtype in ['BYTES', 'STRING'] and self.allocation != 'STATIC':
+ elif self.pbtype in ['BYTES', 'STRING', 'FIXED_LENGTH_BYTES'] and self.allocation != 'STATIC':
result += '0)' # Arbitrary size default values not implemented
elif self.rules == 'OPTEXT':
result += '0)' # Default value for extensions is not implemented
'''Determine if this field needs 16bit or 32bit pb_field_t structure to compile properly.
Returns numeric value or a C-expression for assert.'''
check = []
- if self.pbtype == 'MESSAGE':
- if self.rules == 'REPEATED' and self.allocation == 'STATIC':
+ if self.pbtype == 'MESSAGE' and self.allocation == 'STATIC':
+ if self.rules == 'REPEATED':
check.append('pb_membersize(%s, %s[0])' % (self.struct_name, self.name))
elif self.rules == 'ONEOF':
if self.anonymous:
check.append('pb_membersize(%s, %s.%s)' % (self.struct_name, self.union_name, self.name))
else:
check.append('pb_membersize(%s, %s)' % (self.struct_name, self.name))
+ elif self.pbtype == 'BYTES' and self.allocation == 'STATIC':
+ if self.max_size > 251:
+ check.append('pb_membersize(%s, %s)' % (self.struct_name, self.name))
return FieldMaxSize([self.tag, self.max_size, self.max_count],
check,
return ''.join([f.tags() for f in self.fields])
def pb_field_t(self, prev_field_name):
- result = ',\n'.join([f.pb_field_t(prev_field_name) for f in self.fields])
- return result
+ parts = []
+ for union_index, field in enumerate(self.fields):
+ parts.append(field.pb_field_t(prev_field_name, union_index))
+ return ',\n'.join(parts)
def get_last_field_name(self):
if self.anonymous:
else:
yield '/* Generated by %s at %s. */\n\n' % (nanopb_version, time.asctime())
- symbol = make_identifier(headername)
+ if self.fdesc.package:
+ symbol = make_identifier(self.fdesc.package + '_' + headername)
+ else:
+ symbol = make_identifier(headername)
yield '#ifndef PB_%s_INCLUDED\n' % symbol
yield '#define PB_%s_INCLUDED\n' % symbol
try:
noext = os.path.splitext(incfile)[0]
yield options.genformat % (noext + options.extension + '.h')
yield '\n'
-
+
yield '/* @@protoc_insertion_point(includes) */\n'
yield '#if PB_PROTO_HEADER_VERSION != 30\n'
yield '/* Maximum encoded size of messages (where known) */\n'
for msg in self.messages:
msize = msg.encoded_size(self.dependencies)
+ identifier = '%s_size' % msg.name
if msize is not None:
- identifier = '%s_size' % msg.name
yield '#define %-40s %s\n' % (identifier, msize)
+ else:
+ yield '/* %s depends on runtime parameters */\n' % identifier
yield '\n'
yield '/* Message IDs (where set with "msgid" option) */\n'
for ext in self.extensions:
yield ext.extension_def() + '\n'
+ for enum in self.enums:
+ yield enum.enum_to_string_definition() + '\n'
+
# Add checks for numeric limits
if self.messages:
largest_msg = max(self.messages, key = lambda m: m.count_required_fields())
new_options = nanopb_pb2.NanoPBOptions()
new_options.CopyFrom(options)
+ if hasattr(subdesc, 'syntax') and subdesc.syntax == "proto3":
+ new_options.proto3 = True
+
# Handle options defined in a separate file
dotname = '.'.join(name.parts)
for namemask, options in Globals.separate_options:
optparser.add_option("-I", "--options-path", dest="options_path", metavar="DIR",
action="append", default = [],
help="Search for .options files additionally in this path")
+optparser.add_option("-D", "--output-dir", dest="output_dir",
+ metavar="OUTPUTDIR", default=None,
+ help="Output directory of .pb.h and .pb.c files")
optparser.add_option("-Q", "--generated-include-format", dest="genformat",
metavar="FORMAT", default='#include "%s"\n',
help="Set format string to use for including other .pb.h files. [default: %default]")
if options.quiet:
options.verbose = False
- Globals.verbose_options = options.verbose
+ if options.output_dir and not os.path.exists(options.output_dir):
+ optparser.print_help()
+ sys.stderr.write("\noutput_dir does not exist: %s\n" % options.output_dir)
+ sys.exit(1)
+
+ Globals.verbose_options = options.verbose
for filename in filenames:
results = process_file(filename, None, options)
+ base_dir = options.output_dir or ''
+ to_write = [
+ (os.path.join(base_dir, results['headername']), results['headerdata']),
+ (os.path.join(base_dir, results['sourcename']), results['sourcedata']),
+ ]
+
if not options.quiet:
- sys.stderr.write("Writing to " + results['headername'] + " and "
- + results['sourcename'] + "\n")
+ paths = " and ".join([x[0] for x in to_write])
+ sys.stderr.write("Writing to %s\n" % paths)
- open(results['headername'], 'w').write(results['headerdata'])
- open(results['sourcename'], 'w').write(results['sourcedata'])
+ for path, data in to_write:
+ with open(path, 'w') as f:
+ f.write(data)
def main_plugin():
'''Main function when invoked as a protoc plugin.'''
main_plugin()
else:
main_cli()
-
Code Review / apps / agl-service-can-low-level.git / blobdiff