Fix problem with .options file and extension fields.

The options for an extension field were being looked up under wrong name
(MessageName instead of MessageName.fieldname).

Fixed the problem and added regression test. Created a new subfolder for
regression test cases.

Update issue 125
Status: FixedInGit

generator/nanopb_generator.py

@@ -645,7 +645,7 @@ def parse_file(fdesc, file_options):
             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))
     

tests/SConstruct

@@ -141,6 +141,6 @@ import os.path
 env['VARIANT_DIR'] = 'build'
 env['BUILD'] = '#' + env['VARIANT_DIR']
 env['COMMON'] = '#' + env['VARIANT_DIR'] + '/common'
-for subdir in Glob('*/SConscript'):
+for subdir in Glob('*/SConscript') + Glob('regression/*/SConscript'):
     SConscript(subdir, exports = 'env', variant_dir = env['VARIANT_DIR'] + '/' + os.path.dirname(str(subdir)))
 

tests/regression/issue_125/SConscript

@@ -0,0 +1,9 @@
+# Regression test for Issue 125: Wrong identifier name for extension fields
+
+Import("env")
+
+env.NanopbProto(["extensionbug", "extensionbug.options"])
+env.Object('extensionbug.pb.c')
+
+env.Match(['extensionbug.pb.h', 'extensionbug.expected'])
+

tests/regression/issue_125/extensionbug.expected

@@ -0,0 +1,3 @@
+pb_extension_type_t Message2_extras
+uint32_t field2
+

tests/regression/issue_125/extensionbug.options

@@ -0,0 +1,4 @@
+* type:FT_IGNORE
+
+Message2.extras type:FT_STATIC
+Message2.field2 type:FT_STATIC

tests/regression/issue_125/extensionbug.proto

@@ -0,0 +1,16 @@
+message Message1
+{
+	optional uint32	fieldA = 1;
+	extensions 30 to max;
+}
+
+message Message2
+{
+	extend Message1
+	{
+		optional Message2 extras = 30;
+	}
+	
+	optional uint32	field1 = 1;
+	optional uint32 field2 = 2;
+}