Add nanopb version number to generated files.

[apps/agl-service-can-low-level.git] / generator / nanopb_generator.py

diff --git a/generator/nanopb_generator.py b/generator/nanopb_generator.py
index 860f374..dadad64 100644 (file)
--- a/generator/nanopb_generator.py
+++ b/generator/nanopb_generator.py
@@ -1,4 +1,5 @@
 '''Generate header file for nanopb from a ProtoBuf FileDescriptorSet.'''
+nanopb_version = "nanopb-0.1.7-dev"
 
 try:
     import google.protobuf.descriptor_pb2 as descriptor
@@ -31,7 +32,7 @@ except:
 #                     Generation of single fields
 # ---------------------------------------------------------------------------
 
-
+import time
 import os.path
 
 # Values are tuple (c type, pb ltype)
@@ -81,7 +82,12 @@ def names_from_type_name(type_name):
 class Enum:
     def __init__(self, names, desc, enum_options):
         '''desc is EnumDescriptorProto'''
-        self.names = names + desc.name
+        
+        if enum_options.long_names:
+            self.names = names + desc.name
+        else:
+            self.names = names
+        
         self.values = [(self.names + x.name, x.number) for x in desc.value]
     
     def __str__(self):
@@ -376,7 +382,8 @@ def parse_file(fdesc, file_options):
         base_name = Names()
     
     for enum in fdesc.enum_type:
-        enums.append(Enum(base_name, enum, file_options))
+        enum_options = get_nanopb_suboptions(enum, file_options)
+        enums.append(Enum(base_name, enum, enum_options))
     
     for names, message in iterate_messages(fdesc, base_name):
         message_options = get_nanopb_suboptions(message, file_options)
@@ -423,6 +430,7 @@ def generate_header(dependencies, headername, enums, messages):
     '''
     
     yield '/* Automatically generated nanopb header */\n'
+    yield '/* Generated by %s at %s. */\n\n' % (nanopb_version, time.asctime())
     
     symbol = headername.replace('.', '_').upper()
     yield '#ifndef _PB_%s_\n' % symbol
@@ -432,7 +440,10 @@ def generate_header(dependencies, headername, enums, messages):
     for dependency in dependencies:
         noext = os.path.splitext(dependency)[0]
         yield '#include "%s.pb.h"\n' % noext
-    yield '\n'
+    
+    yield '#ifdef __cplusplus\n'
+    yield 'extern "C" {\n'
+    yield '#endif\n\n'
     
     yield '/* Enum definitions */\n'
     for enum in enums:
@@ -496,6 +507,10 @@ def generate_header(dependencies, headername, enums, messages):
                 yield 'STATIC_ASSERT((%s), YOU_MUST_DEFINE_PB_FIELD_32BIT)\n' % assertion
             yield '#endif\n'
     
+    yield '\n#ifdef __cplusplus\n'
+    yield '} /* extern "C" */\n'
+    yield '#endif\n'
+    
     # End of header
     yield '\n#endif\n'
 
@@ -503,6 +518,7 @@ def generate_source(headername, enums, messages):
     '''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())
     yield '#include "%s"\n\n' % headername
     
     for msg in messages:
@@ -548,6 +564,8 @@ def get_nanopb_suboptions(subdesc, options):
         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")