X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=generator%2Fnanopb_generator.py;h=80fb93cabd7a4c7cee15949bdf76d5ccf381f112;hb=62b4a8ecaac45ce62cc93e09261d60e6ceade1a9;hp=7c60ebe9d0d57d71f4f7c008e2157a6918e243ac;hpb=542463dbaa3acae564e4a1eddf264e1fe226c38a;p=apps%2Fagl-service-can-low-level.git diff --git a/generator/nanopb_generator.py b/generator/nanopb_generator.py index 7c60ebe9..80fb93ca 100755 --- a/generator/nanopb_generator.py +++ b/generator/nanopb_generator.py @@ -1,7 +1,7 @@ #!/usr/bin/python '''Generate header file for nanopb from a ProtoBuf FileDescriptorSet.''' -nanopb_version = "nanopb-0.2.6-dev" +nanopb_version = "nanopb-0.3.0-dev" import sys @@ -246,7 +246,7 @@ class Field: self.ctype = self.struct_name + self.name + 't' self.enc_size = varint_max_size(self.max_size) + self.max_size elif self.allocation == 'POINTER': - self.ctype = 'pb_bytes_ptr_t' + self.ctype = 'pb_bytes_array_t' elif desc.type == FieldD.TYPE_MESSAGE: self.pbtype = 'MESSAGE' self.ctype = self.submsgname = names_from_type_name(desc.type_name) @@ -261,13 +261,13 @@ class Field: result = '' if self.allocation == 'POINTER': if self.rules == 'REPEATED': - result += ' size_t ' + self.name + '_count;\n' + result += ' pb_size_t ' + self.name + '_count;\n' if self.pbtype == 'MESSAGE': # Use struct definition, so recursive submessages are possible result += ' struct _%s *%s;' % (self.ctype, self.name) - elif self.rules == 'REPEATED' and self.pbtype == 'STRING': - # String arrays need to be defined as pointers to pointers + 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) else: result += ' %s *%s;' % (self.ctype, self.name) @@ -277,50 +277,75 @@ class Field: if self.rules == 'OPTIONAL' and self.allocation == 'STATIC': result += ' bool has_' + self.name + ';\n' elif self.rules == 'REPEATED' and self.allocation == 'STATIC': - result += ' size_t ' + self.name + '_count;\n' + result += ' pb_size_t ' + self.name + '_count;\n' result += ' %s %s%s;' % (self.ctype, self.name, self.array_decl) return result def types(self): '''Return definitions for any special types this field might need.''' if self.pbtype == 'BYTES' and self.allocation == 'STATIC': - result = 'typedef struct {\n' - result += ' size_t size;\n' - result += ' uint8_t bytes[%d];\n' % self.max_size - result += '} %s;\n' % self.ctype + result = 'typedef PB_BYTES_ARRAY_T(%d) %s;\n' % (self.max_size, self.ctype) else: result = None return result + def get_initializer(self, null_init): + '''Return literal expression for this field's default value.''' + + if self.pbtype == 'MESSAGE': + if null_init: + return '%s_init_zero' % self.ctype + else: + return '%s_init_default' % self.ctype + + if self.default is None or null_init: + if self.pbtype == 'STRING': + return '""' + elif self.pbtype == 'BYTES': + return '{0, {0}}' + elif self.pbtype == 'ENUM': + return '(%s)0' % self.ctype + else: + return '0' + + default = str(self.default) + + if self.pbtype == 'STRING': + default = default.encode('utf-8').encode('string_escape') + default = default.replace('"', '\\"') + default = '"' + default + '"' + elif self.pbtype == 'BYTES': + data = default.decode('string_escape') + data = ['0x%02x' % ord(c) for c in data] + if len(data) == 0: + default = '{0, {0}}' + else: + default = '{%d, {%s}}' % (len(data), ','.join(data)) + elif self.pbtype in ['FIXED32', 'UINT32']: + default += 'u' + elif self.pbtype in ['FIXED64', 'UINT64']: + default += 'ull' + elif self.pbtype in ['SFIXED64', 'INT64']: + default += 'll' + + return default + def default_decl(self, declaration_only = False): '''Return definition for this field's default value.''' if self.default is None: return None - ctype, default = self.ctype, self.default + ctype = self.ctype + default = self.get_initializer(False) array_decl = '' if self.pbtype == 'STRING': if self.allocation != 'STATIC': return None # Not implemented - array_decl = '[%d]' % self.max_size - default = str(self.default).encode('string_escape') - default = default.replace('"', '\\"') - default = '"' + default + '"' elif self.pbtype == 'BYTES': if self.allocation != 'STATIC': return None # Not implemented - - data = self.default.decode('string_escape') - data = ['0x%02x' % ord(c) for c in data] - default = '{%d, {%s}}' % (len(data), ','.join(data)) - elif self.pbtype in ['FIXED32', 'UINT32']: - default += 'u' - elif self.pbtype in ['FIXED64', 'UINT64']: - default += 'ull' - elif self.pbtype in ['SFIXED64', 'INT64']: - default += 'll' if declaration_only: return 'extern const %s %s_default%s;' % (ctype, self.struct_name + self.name, array_decl) @@ -351,6 +376,8 @@ class Field: result += '0)' elif self.pbtype in ['BYTES', 'STRING'] 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 else: result += '&%s_default)' % (self.struct_name + self.name) @@ -440,7 +467,7 @@ class ExtensionRange(Field): def tags(self): return '' - + def encoded_size(self, allmsgs): # We exclude extensions from the count, because they cannot be known # until runtime. Other option would be to return None here, but this @@ -551,6 +578,32 @@ class Message: result += types + '\n' return result + def get_initializer(self, null_init): + if not self.ordered_fields: + return '{0}' + + parts = [] + for field in self.ordered_fields: + if field.allocation == 'STATIC': + if field.rules == 'REPEATED': + parts.append('0') + parts.append('{' + + ', '.join([field.get_initializer(null_init)] * field.max_count) + + '}') + elif field.rules == 'OPTIONAL': + parts.append('false') + parts.append(field.get_initializer(null_init)) + else: + parts.append(field.get_initializer(null_init)) + elif field.allocation == 'POINTER': + parts.append('NULL') + elif field.allocation == 'CALLBACK': + if field.pbtype == 'EXTENSION': + parts.append('NULL') + else: + parts.append('{{NULL}, NULL}') + return '{' + ', '.join(parts) + '}' + def default_decl(self, declaration_only = False): result = "" for field in self.fields: @@ -637,13 +690,17 @@ def parse_file(fdesc, file_options): for names, message in iterate_messages(fdesc, base_name): message_options = get_nanopb_suboptions(message, file_options, names) + + if message_options.skip_message: + continue + messages.append(Message(names, message, message_options)) for enum in message.enum_type: enum_options = get_nanopb_suboptions(enum, message_options, names + enum.name) enums.append(Enum(names, enum, enum_options)) for names, extension in iterate_extensions(fdesc, base_name): - field_options = get_nanopb_suboptions(extension, file_options, names) + field_options = get_nanopb_suboptions(extension, file_options, names + extension.name) if field_options.type != nanopb_pb2.FT_IGNORE: extensions.append(ExtensionField(names, extension, field_options)) @@ -705,7 +762,10 @@ def generate_header(dependencies, headername, enums, messages, extensions, optio ''' yield '/* Automatically generated nanopb header */\n' - yield '/* Generated by %s at %s. */\n\n' % (nanopb_version, time.asctime()) + if options.notimestamp: + yield '/* Generated by %s */\n\n' % (nanopb_version) + else: + yield '/* Generated by %s at %s. */\n\n' % (nanopb_version, time.asctime()) symbol = make_identifier(headername) yield '#ifndef _PB_%s_\n' % symbol @@ -719,7 +779,7 @@ def generate_header(dependencies, headername, enums, messages, extensions, optio for dependency in dependencies: noext = os.path.splitext(dependency)[0] - yield options.genformat % (noext + '.' + options.extension + '.h') + yield options.genformat % (noext + options.extension + '.h') yield '\n' yield '#ifdef __cplusplus\n' @@ -746,6 +806,15 @@ def generate_header(dependencies, headername, enums, messages, extensions, optio yield msg.default_decl(True) yield '\n' + yield '/* Initializer values for message structs */\n' + for msg in messages: + identifier = '%s_init_default' % msg.name + yield '#define %-40s %s\n' % (identifier, msg.get_initializer(False)) + for msg in messages: + identifier = '%s_init_zero' % msg.name + yield '#define %-40s %s\n' % (identifier, msg.get_initializer(True)) + yield '\n' + yield '/* Field tags (for use in manual encoding/decoding) */\n' for msg in sort_dependencies(messages): for field in msg.fields: @@ -778,7 +847,10 @@ def generate_source(headername, enums, messages, extensions, options): '''Generate content for a source file.''' yield '/* Automatically generated nanopb constant definitions */\n' - yield '/* Generated by %s at %s. */\n\n' % (nanopb_version, time.asctime()) + if options.notimestamp: + yield '/* Generated by %s */\n\n' % (nanopb_version) + else: + yield '/* Generated by %s at %s. */\n\n' % (nanopb_version, time.asctime()) yield options.genformat % (headername) yield '\n' @@ -836,7 +908,7 @@ def generate_source(headername, enums, messages, extensions, options): yield ' * numbers or field sizes that are larger than what can fit in 8 or 16 bit\n' yield ' * field descriptors.\n' yield ' */\n' - yield 'STATIC_ASSERT((%s), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_%s)\n'%(assertion,msgs) + yield 'PB_STATIC_ASSERT((%s), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_%s)\n'%(assertion,msgs) yield '#endif\n\n' if worst < 65536: @@ -853,7 +925,7 @@ def generate_source(headername, enums, messages, extensions, options): yield ' * numbers or field sizes that are larger than what can fit in the default\n' yield ' * 8 bit descriptors.\n' yield ' */\n' - yield 'STATIC_ASSERT((%s), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_%s)\n'%(assertion,msgs) + yield 'PB_STATIC_ASSERT((%s), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_%s)\n'%(assertion,msgs) yield '#endif\n\n' # Add check for sizeof(double) @@ -869,7 +941,7 @@ def generate_source(headername, enums, messages, extensions, options): yield ' * These are not directly supported by nanopb, but see example_avr_double.\n' yield ' * To get rid of this error, remove any double fields from your .proto.\n' yield ' */\n' - yield 'STATIC_ASSERT(sizeof(double) == 8, DOUBLE_MUST_BE_8_BYTES)\n' + yield 'PB_STATIC_ASSERT(sizeof(double) == 8, DOUBLE_MUST_BE_8_BYTES)\n' yield '\n' @@ -951,8 +1023,8 @@ optparser = OptionParser( "Output will be written to file.pb.h and file.pb.c.") optparser.add_option("-x", dest="exclude", metavar="FILE", action="append", default=[], help="Exclude file from generated #include list.") -optparser.add_option("-e", "--extension", dest="extension", metavar="EXTENSION", default="pb", - help="Set extension to use instead of 'pb' for generated files. [default: %default]") +optparser.add_option("-e", "--extension", dest="extension", metavar="EXTENSION", default=".pb", + help="Set extension to use instead of '.pb' for generated files. [default: %default]") optparser.add_option("-f", "--options-file", dest="options_file", metavar="FILE", default="%s.options", help="Set name of a separate generator options file.") optparser.add_option("-Q", "--generated-include-format", dest="genformat", @@ -961,6 +1033,8 @@ optparser.add_option("-Q", "--generated-include-format", dest="genformat", optparser.add_option("-L", "--library-include-format", dest="libformat", metavar="FORMAT", default='#include <%s>\n', help="Set format string to use for including the nanopb pb.h header. [default: %default]") +optparser.add_option("-T", "--no-timestamp", dest="notimestamp", action="store_true", default=False, + help="Don't add timestamp to .pb.h and .pb.c preambles") optparser.add_option("-q", "--quiet", dest="quiet", action="store_true", default=False, help="Don't print anything except errors.") optparser.add_option("-v", "--verbose", dest="verbose", action="store_true", default=False, @@ -990,29 +1064,38 @@ def process_file(filename, fdesc, options): fdesc = descriptor.FileDescriptorSet.FromString(data).file[0] # Check if there is a separate .options file + had_abspath = False try: optfilename = options.options_file % os.path.splitext(filename)[0] except TypeError: # No %s specified, use the filename as-is optfilename = options.options_file - + had_abspath = True + if os.path.isfile(optfilename): if options.verbose: sys.stderr.write('Reading options from ' + optfilename + '\n') Globals.separate_options = read_options_file(open(optfilename, "rU")) else: + # If we are given a full filename and it does not exist, give an error. + # However, don't give error when we automatically look for .options file + # with the same name as .proto. + if options.verbose or had_abspath: + sys.stderr.write('Options file not found: ' + optfilename) + Globals.separate_options = [] + Globals.matched_namemasks = set() # Parse the file file_options = get_nanopb_suboptions(fdesc, toplevel_options, Names([filename])) enums, messages, extensions = parse_file(fdesc, file_options) - + # Decide the file names noext = os.path.splitext(filename)[0] - headername = noext + '.' + options.extension + '.h' - sourcename = noext + '.' + options.extension + '.c' + headername = noext + options.extension + '.h' + sourcename = noext + options.extension + '.c' headerbasename = os.path.basename(headername) # List of .proto files that should not be included in the C header file