+ # Add check for sizeof(double)
+ has_double = False
+ for msg in messages:
+ for field in msg.fields:
+ if field.ctype == 'double':
+ has_double = True
+
+ if has_double:
+ yield '\n'
+ yield '/* On some platforms (such as AVR), double is really float.\n'
+ 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 '\n'
+
+
+# ---------------------------------------------------------------------------
+# Command line interface
+# ---------------------------------------------------------------------------
+
+import sys
+import os.path
+from optparse import OptionParser
+import google.protobuf.text_format as text_format
+
+optparser = OptionParser(
+ usage = "Usage: nanopb_generator.py [options] file.pb ...",
+ epilog = "Compile file.pb from file.proto by: 'protoc -ofile.pb file.proto'. " +
+ "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("-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]")
+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("-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,
+ help="Print more information.")
+optparser.add_option("-s", dest="settings", metavar="OPTION:VALUE", action="append", default=[],
+ help="Set generator option (max_size, max_count etc.).")
+
+def get_nanopb_suboptions(subdesc, options):
+ '''Get copy of options, and merge information from subdesc.'''
+ new_options = nanopb_pb2.NanoPBOptions()
+ new_options.CopyFrom(options)
+
+ if isinstance(subdesc.options, descriptor.FieldOptions):
+ ext_type = nanopb_pb2.nanopb
+ elif isinstance(subdesc.options, descriptor.FileOptions):
+ ext_type = nanopb_pb2.nanopb_fileopt
+ elif isinstance(subdesc.options, descriptor.MessageOptions):
+ ext_type = nanopb_pb2.nanopb_msgopt
+ elif isinstance(subdesc.options, descriptor.EnumOptions):
+ ext_type = nanopb_pb2.nanopb_enumopt
+ else:
+ raise Exception("Unknown options type")
+
+ if subdesc.options.HasExtension(ext_type):
+ ext = subdesc.options.Extensions[ext_type]
+ new_options.MergeFrom(ext)
+
+ return new_options
+
+def process(filenames, options):
+ '''Process the files given on the command line.'''