Refactor the generator logic into a ProtoFile class.

In preparation for multi-file support in generator.
No functional changes yet.

1 files changed, 297 insertions, 285 deletions

diff --git a/generator/nanopb_generator.py b/generator/nanopb_generator.py
index 2b1d63e5..6d06c2cd 100755
--- a/generator/nanopb_generator.py
+++ b/generator/nanopb_generator.py
@@ -471,7 +471,7 @@ class Field:
 
         return max(self.tag, self.max_size, self.max_count)        
 
-    def encoded_size(self, allmsgs):
+    def encoded_size(self, dependencies):
         '''Return the maximum size that this field can take when encoded,
         including the field tag. If the size cannot be determined, returns
         None.'''
@@ -480,15 +480,14 @@ class Field:
             return None
         
         if self.pbtype == 'MESSAGE':
-            for msg in allmsgs:
-                if msg.name == self.submsgname:
-                    encsize = msg.encoded_size(allmsgs)
-                    if encsize is None:
-                        return None # Submessage size is indeterminate
-                        
-                    # Include submessage length prefix
-                    encsize += varint_max_size(encsize.upperlimit())
-                    break
+            if str(self.submsgname) in dependencies:
+                submsg = dependencies[str(self.submsgname)]
+                encsize = submsg.encoded_size(dependencies)
+                if encsize is None:
+                    return None # Submessage size is indeterminate
+                    
+                # Include submessage length prefix
+                encsize += varint_max_size(encsize.upperlimit())
             else:
                 # Submessage cannot be found, this currently occurs when
                 # the submessage type is defined in a different file.
@@ -831,7 +830,6 @@ class Message:
 #                    Processing of entire .proto files
 # ---------------------------------------------------------------------------
 
-
 def iterate_messages(desc, names = Names()):
     '''Recursively find all messages. For each, yield name, DescriptorProto.'''
     if hasattr(desc, 'message_type'):
@@ -857,57 +855,6 @@ def iterate_extensions(desc, names = Names()):
         for extension in subdesc.extension:
             yield subname, extension
 
-def parse_file(fdesc, file_options):
-    '''Takes a FileDescriptorProto and returns tuple (enums, messages, extensions).'''
-    
-    enums = []
-    messages = []
-    extensions = []
-    
-    if fdesc.package:
-        base_name = Names(fdesc.package.split('.'))
-    else:
-        base_name = Names()
-    
-    for enum in fdesc.enum_type:
-        enum_options = get_nanopb_suboptions(enum, file_options, base_name + enum.name)
-        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, 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 + extension.name)
-        if field_options.type != nanopb_pb2.FT_IGNORE:
-            extensions.append(ExtensionField(names, extension, field_options))
-    
-    # Fix field default values where enum short names are used.
-    for enum in enums:
-        if not enum.options.long_names:
-            for message in messages:
-                for field in message.fields:
-                    if field.default in enum.value_longnames:
-                        idx = enum.value_longnames.index(field.default)
-                        field.default = enum.values[idx][0]
-    
-    # Fix field data types where enums have negative values.
-    for enum in enums:
-        if not enum.has_negative():
-            for message in messages:
-                for field in message.fields:
-                    if field.pbtype == 'ENUM' and field.ctype == enum.names:
-                        field.pbtype = 'UENUM'
-    
-    return enums, messages, extensions
-
 def toposort2(data):
     '''Topological sort.
     From http://code.activestate.com/recipes/577413-topological-sort/
@@ -949,231 +896,299 @@ def make_identifier(headername):
             result += '_'
     return result
 
-def generate_header(dependencies, headername, enums, messages, extensions, options):
-    '''Generate content for a header file.
-    Generates strings, which should be concatenated and stored to file.
-    '''
-    
-    yield '/* Automatically generated nanopb header */\n'
-    if options.notimestamp:
-        yield '/* Generated by %s */\n\n' % (nanopb_version)
-    else:
-        yield '/* Generated by %s at %s. */\n\n' % (nanopb_version, time.asctime())
+class ProtoFile:
+    def __init__(self, fdesc, file_options):
+        '''Takes a FileDescriptorProto and parses it.'''
+        self.fdesc = fdesc
+        self.file_options = file_options
+        self.dependencies = {}
+        self.parse()
+        
+        # Some of types used in this file probably come from the file itself.
+        # Thus it has implicit dependency on itself.
+        self.add_dependency(self)
+
+    def parse(self):
+        self.enums = []
+        self.messages = []
+        self.extensions = []
+        
+        if self.fdesc.package:
+            base_name = Names(self.fdesc.package.split('.'))
+        else:
+            base_name = Names()
     
-    symbol = make_identifier(headername)
-    yield '#ifndef PB_%s_INCLUDED\n' % symbol
-    yield '#define PB_%s_INCLUDED\n' % symbol
-    try:
-        yield options.libformat % ('pb.h')
-    except TypeError:
-        # no %s specified - use whatever was passed in as options.libformat
-        yield options.libformat
-    yield '\n'
+        for enum in self.fdesc.enum_type:
+            enum_options = get_nanopb_suboptions(enum, self.file_options, base_name + enum.name)
+            self.enums.append(Enum(base_name, enum, enum_options))
+        
+        for names, message in iterate_messages(self.fdesc, base_name):
+            message_options = get_nanopb_suboptions(message, self.file_options, names)
+            
+            if message_options.skip_message:
+                continue
+       
+            self.messages.append(Message(names, message, message_options))
+            for enum in message.enum_type:
+                enum_options = get_nanopb_suboptions(enum, message_options, names + enum.name)
+                self.enums.append(Enum(names, enum, enum_options))
+        
+        for names, extension in iterate_extensions(self.fdesc, base_name):
+            field_options = get_nanopb_suboptions(extension, self.file_options, names + extension.name)
+            if field_options.type != nanopb_pb2.FT_IGNORE:
+                self.extensions.append(ExtensionField(names, extension, field_options))
     
-    for dependency in dependencies:
-        noext = os.path.splitext(dependency)[0]
-        yield options.genformat % (noext + options.extension + '.h')
+    def add_dependency(self, other):
+        for enum in other.enums:
+            self.dependencies[str(enum.names)] = enum
+        
+        for msg in other.messages:
+            self.dependencies[str(msg.name)] = msg
+        
+        # Fix field default values where enum short names are used.
+        for enum in other.enums:
+            if not enum.options.long_names:
+                for message in self.messages:
+                    for field in message.fields:
+                        if field.default in enum.value_longnames:
+                            idx = enum.value_longnames.index(field.default)
+                            field.default = enum.values[idx][0]
+        
+        # Fix field data types where enums have negative values.
+        for enum in other.enums:
+            if not enum.has_negative():
+                for message in self.messages:
+                    for field in message.fields:
+                        if field.pbtype == 'ENUM' and field.ctype == enum.names:
+                            field.pbtype = 'UENUM'
+
+    def generate_header(self, includes, headername, options):
+        '''Generate content for a header file.
+        Generates strings, which should be concatenated and stored to file.
+        '''
+        
+        yield '/* Automatically generated nanopb header */\n'
+        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_INCLUDED\n' % symbol
+        yield '#define PB_%s_INCLUDED\n' % symbol
+        try:
+            yield options.libformat % ('pb.h')
+        except TypeError:
+            # no %s specified - use whatever was passed in as options.libformat
+            yield options.libformat
         yield '\n'
-
-    yield '#if PB_PROTO_HEADER_VERSION != 30\n'
-    yield '#error Regenerate this file with the current version of nanopb generator.\n'
-    yield '#endif\n'
-    yield '\n'
-
-    yield '#ifdef __cplusplus\n'
-    yield 'extern "C" {\n'
-    yield '#endif\n\n'
-    
-    yield '/* Enum definitions */\n'
-    for enum in enums:
-        yield str(enum) + '\n\n'
-    
-    yield '/* Struct definitions */\n'
-    for msg in sort_dependencies(messages):
-        yield msg.types()
-        yield str(msg) + '\n\n'
-    
-    if extensions:
-        yield '/* Extensions */\n'
-        for extension in extensions:
-            yield extension.extension_decl()
+        
+        for incfile in includes:
+            noext = os.path.splitext(incfile)[0]
+            yield options.genformat % (noext + options.extension + '.h')
+            yield '\n'
+
+        yield '#if PB_PROTO_HEADER_VERSION != 30\n'
+        yield '#error Regenerate this file with the current version of nanopb generator.\n'
+        yield '#endif\n'
         yield '\n'
+
+        yield '#ifdef __cplusplus\n'
+        yield 'extern "C" {\n'
+        yield '#endif\n\n'
         
-    yield '/* Default values for struct fields */\n'
-    for msg in messages:
-        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:
-            yield field.tags()
-    for extension in extensions:
-        yield extension.tags()
-    yield '\n'
-    
-    yield '/* Struct field encoding specification for nanopb */\n'
-    for msg in messages:
-        yield msg.fields_declaration() + '\n'
-    yield '\n'
-    
-    yield '/* Maximum encoded size of messages (where known) */\n'
-    for msg in messages:
-        msize = msg.encoded_size(messages)
-        if msize is not None:
-            identifier = '%s_size' % msg.name
-            yield '#define %-40s %s\n' % (identifier, msize)
-    yield '\n'
-
-    yield '/* Message IDs (where set with "msgid" option) */\n'
-    
-    yield '#ifdef PB_MSGID\n'
-    for msg in messages:
-        if hasattr(msg,'msgid'):
-            yield '#define PB_MSG_%d %s\n' % (msg.msgid, msg.name)
-    yield '\n'
-
-    symbol = make_identifier(headername.split('.')[0])
-    yield '#define %s_MESSAGES \\\n' % symbol
-
-    for msg in messages:
-        m = "-1"
-        msize = msg.encoded_size(messages)
-        if msize is not None:
-            m = msize
-        if hasattr(msg,'msgid'):
-            yield '\tPB_MSG(%d,%s,%s) \\\n' % (msg.msgid, m, msg.name)
-    yield '\n'
-
-    for msg in messages:
-        if hasattr(msg,'msgid'):
-            yield '#define %s_msgid %d\n' % (msg.name, msg.msgid)
-    yield '\n'
-
-    yield '#endif\n\n'
-
-
-    yield '#ifdef __cplusplus\n'
-    yield '} /* extern "C" */\n'
-    yield '#endif\n'
-    
-    # End of header
-    yield '\n#endif\n'
+        if self.enums:
+            yield '/* Enum definitions */\n'
+            for enum in self.enums:
+                yield str(enum) + '\n\n'
+        
+        if self.messages:
+            yield '/* Struct definitions */\n'
+            for msg in sort_dependencies(self.messages):
+                yield msg.types()
+                yield str(msg) + '\n\n'
+        
+        if self.extensions:
+            yield '/* Extensions */\n'
+            for extension in self.extensions:
+                yield extension.extension_decl()
+            yield '\n'
+        
+        if self.messages:
+            yield '/* Default values for struct fields */\n'
+            for msg in self.messages:
+                yield msg.default_decl(True)
+            yield '\n'
+        
+            yield '/* Initializer values for message structs */\n'
+            for msg in self.messages:
+                identifier = '%s_init_default' % msg.name
+                yield '#define %-40s %s\n' % (identifier, msg.get_initializer(False))
+            for msg in self.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(self.messages):
+                for field in msg.fields:
+                    yield field.tags()
+            for extension in self.extensions:
+                yield extension.tags()
+            yield '\n'
+        
+            yield '/* Struct field encoding specification for nanopb */\n'
+            for msg in self.messages:
+                yield msg.fields_declaration() + '\n'
+            yield '\n'
+        
+            yield '/* Maximum encoded size of messages (where known) */\n'
+            for msg in self.messages:
+                msize = msg.encoded_size(self.dependencies)
+                if msize is not None:
+                    identifier = '%s_size' % msg.name
+                    yield '#define %-40s %s\n' % (identifier, msize)
+            yield '\n'
+
+            yield '/* Message IDs (where set with "msgid" option) */\n'
+            
+            yield '#ifdef PB_MSGID\n'
+            for msg in self.messages:
+                if hasattr(msg,'msgid'):
+                    yield '#define PB_MSG_%d %s\n' % (msg.msgid, msg.name)
+            yield '\n'
+
+            symbol = make_identifier(headername.split('.')[0])
+            yield '#define %s_MESSAGES \\\n' % symbol
+
+            for msg in self.messages:
+                m = "-1"
+                msize = msg.encoded_size(self.dependencies)
+                if msize is not None:
+                    m = msize
+                if hasattr(msg,'msgid'):
+                    yield '\tPB_MSG(%d,%s,%s) \\\n' % (msg.msgid, m, msg.name)
+            yield '\n'
+
+            for msg in self.messages:
+                if hasattr(msg,'msgid'):
+                    yield '#define %s_msgid %d\n' % (msg.name, msg.msgid)
+            yield '\n'
 
-def generate_source(headername, enums, messages, extensions, options):
-    '''Generate content for a source file.'''
-    
-    yield '/* Automatically generated nanopb constant definitions */\n'
-    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'
-    
-    yield '#if PB_PROTO_HEADER_VERSION != 30\n'
-    yield '#error Regenerate this file with the current version of nanopb generator.\n'
-    yield '#endif\n'
-    yield '\n'
-    
-    for msg in messages:
-        yield msg.default_decl(False)
-    
-    yield '\n\n'
-    
-    for msg in messages:
-        yield msg.fields_definition() + '\n\n'
-    
-    for ext in extensions:
-        yield ext.extension_def() + '\n'
-        
-    # Add checks for numeric limits
-    if messages:
-        largest_msg = max(messages, key = lambda m: m.count_required_fields())
-        largest_count = largest_msg.count_required_fields()
-        if largest_count > 64:
-            yield '\n/* Check that missing required fields will be properly detected */\n'
-            yield '#if PB_MAX_REQUIRED_FIELDS < %d\n' % largest_count
-            yield '#error Properly detecting missing required fields in %s requires \\\n' % largest_msg.name
-            yield '       setting PB_MAX_REQUIRED_FIELDS to %d or more.\n' % largest_count
-            yield '#endif\n'
-    
-    worst = 0
-    worst_field = ''
-    checks = []
-    checks_msgnames = []
-    for msg in messages:
-        checks_msgnames.append(msg.name)
-        for field in msg.fields:
-            status = field.largest_field_value()
-            if isinstance(status, (str, unicode)):
-                checks.append(status)
-            elif status > worst:
-                worst = status
-                worst_field = str(field.struct_name) + '.' + str(field.name)
-
-    if worst > 255 or checks:
-        yield '\n/* Check that field information fits in pb_field_t */\n'
-        
-        if worst > 65535 or checks:
-            yield '#if !defined(PB_FIELD_32BIT)\n'
-            if worst > 65535:
-                yield '#error Field descriptor for %s is too large. Define PB_FIELD_32BIT to fix this.\n' % worst_field
-            else:
-                assertion = ' && '.join(str(c) + ' < 65536' for c in checks)
-                msgs = '_'.join(str(n) for n in checks_msgnames)
-                yield '/* If you get an error here, it means that you need to define PB_FIELD_32BIT\n'
-                yield ' * compile-time option. You can do that in pb.h or on compiler command line.\n'
-                yield ' * \n'
-                yield ' * The reason you need to do this is that some of your messages contain tag\n'
-                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 'PB_STATIC_ASSERT((%s), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_%s)\n'%(assertion,msgs)
             yield '#endif\n\n'
+
+        yield '#ifdef __cplusplus\n'
+        yield '} /* extern "C" */\n'
+        yield '#endif\n'
+        
+        # End of header
+        yield '\n#endif\n'
+
+    def generate_source(self, headername, options):
+        '''Generate content for a source file.'''
+        
+        yield '/* Automatically generated nanopb constant definitions */\n'
+        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'
+        
+        yield '#if PB_PROTO_HEADER_VERSION != 30\n'
+        yield '#error Regenerate this file with the current version of nanopb generator.\n'
+        yield '#endif\n'
+        yield '\n'
+        
+        for msg in self.messages:
+            yield msg.default_decl(False)
+        
+        yield '\n\n'
+        
+        for msg in self.messages:
+            yield msg.fields_definition() + '\n\n'
+        
+        for ext in self.extensions:
+            yield ext.extension_def() + '\n'
+            
+        # Add checks for numeric limits
+        if self.messages:
+            largest_msg = max(self.messages, key = lambda m: m.count_required_fields())
+            largest_count = largest_msg.count_required_fields()
+            if largest_count > 64:
+                yield '\n/* Check that missing required fields will be properly detected */\n'
+                yield '#if PB_MAX_REQUIRED_FIELDS < %d\n' % largest_count
+                yield '#error Properly detecting missing required fields in %s requires \\\n' % largest_msg.name
+                yield '       setting PB_MAX_REQUIRED_FIELDS to %d or more.\n' % largest_count
+                yield '#endif\n'
+        
+        worst = 0
+        worst_field = ''
+        checks = []
+        checks_msgnames = []
+        for msg in self.messages:
+            checks_msgnames.append(msg.name)
+            for field in msg.fields:
+                status = field.largest_field_value()
+                if isinstance(status, (str, unicode)):
+                    checks.append(status)
+                elif status > worst:
+                    worst = status
+                    worst_field = str(field.struct_name) + '.' + str(field.name)
+
+        if worst > 255 or checks:
+            yield '\n/* Check that field information fits in pb_field_t */\n'
+            
+            if worst > 65535 or checks:
+                yield '#if !defined(PB_FIELD_32BIT)\n'
+                if worst > 65535:
+                    yield '#error Field descriptor for %s is too large. Define PB_FIELD_32BIT to fix this.\n' % worst_field
+                else:
+                    assertion = ' && '.join(str(c) + ' < 65536' for c in checks)
+                    msgs = '_'.join(str(n) for n in checks_msgnames)
+                    yield '/* If you get an error here, it means that you need to define PB_FIELD_32BIT\n'
+                    yield ' * compile-time option. You can do that in pb.h or on compiler command line.\n'
+                    yield ' * \n'
+                    yield ' * The reason you need to do this is that some of your messages contain tag\n'
+                    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 'PB_STATIC_ASSERT((%s), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_%s)\n'%(assertion,msgs)
+                yield '#endif\n\n'
+            
+            if worst < 65536:
+                yield '#if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT)\n'
+                if worst > 255:
+                    yield '#error Field descriptor for %s is too large. Define PB_FIELD_16BIT to fix this.\n' % worst_field
+                else:
+                    assertion = ' && '.join(str(c) + ' < 256' for c in checks)
+                    msgs = '_'.join(str(n) for n in checks_msgnames)
+                    yield '/* If you get an error here, it means that you need to define PB_FIELD_16BIT\n'
+                    yield ' * compile-time option. You can do that in pb.h or on compiler command line.\n'
+                    yield ' * \n'
+                    yield ' * The reason you need to do this is that some of your messages contain tag\n'
+                    yield ' * numbers or field sizes that are larger than what can fit in the default\n'
+                    yield ' * 8 bit descriptors.\n'
+                    yield ' */\n'
+                    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)
+        has_double = False
+        for msg in self.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 'PB_STATIC_ASSERT(sizeof(double) == 8, DOUBLE_MUST_BE_8_BYTES)\n'
         
-        if worst < 65536:
-            yield '#if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT)\n'
-            if worst > 255:
-                yield '#error Field descriptor for %s is too large. Define PB_FIELD_16BIT to fix this.\n' % worst_field
-            else:
-                assertion = ' && '.join(str(c) + ' < 256' for c in checks)
-                msgs = '_'.join(str(n) for n in checks_msgnames)
-                yield '/* If you get an error here, it means that you need to define PB_FIELD_16BIT\n'
-                yield ' * compile-time option. You can do that in pb.h or on compiler command line.\n'
-                yield ' * \n'
-                yield ' * The reason you need to do this is that some of your messages contain tag\n'
-                yield ' * numbers or field sizes that are larger than what can fit in the default\n'
-                yield ' * 8 bit descriptors.\n'
-                yield ' */\n'
-                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)
-    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 'PB_STATIC_ASSERT(sizeof(double) == 8, DOUBLE_MUST_BE_8_BYTES)\n'
-    
-    yield '\n'
 
 # ---------------------------------------------------------------------------
 #                    Options parsing for the .proto files
@@ -1338,7 +1353,7 @@ def process_file(filename, fdesc, options):
     
     # Parse the file
     file_options = get_nanopb_suboptions(fdesc, toplevel_options, Names([filename]))
-    enums, messages, extensions = parse_file(fdesc, file_options)
+    f = ProtoFile(fdesc, file_options)
 
     # Decide the file names
     noext = os.path.splitext(filename)[0]
@@ -1349,13 +1364,10 @@ def process_file(filename, fdesc, options):
     # List of .proto files that should not be included in the C header file
     # even if they are mentioned in the source .proto.
     excludes = ['nanopb.proto', 'google/protobuf/descriptor.proto'] + options.exclude
-    dependencies = [d for d in fdesc.dependency if d not in excludes]
+    includes = [d for d in fdesc.dependency if d not in excludes]
     
-    headerdata = ''.join(generate_header(dependencies, headerbasename, enums,
-                                         messages, extensions, options))
-
-    sourcedata = ''.join(generate_source(headerbasename, enums,
-                                         messages, extensions, options))
+    headerdata = ''.join(f.generate_header(includes, headerbasename, options))
+    sourcedata = ''.join(f.generate_source(headerbasename, options))
 
     # Check if there were any lines in .options that did not match a member
     unmatched = [n for n,o in Globals.separate_options if n not in Globals.matched_namemasks]