diff options
| -rwxr-xr-x | generator/nanopb_generator.py | 19 | ||||
| -rw-r--r-- | generator/proto/nanopb.proto | 3 | ||||
| -rw-r--r-- | pb.h | 17 |
3 files changed, 35 insertions, 4 deletions
diff --git a/generator/nanopb_generator.py b/generator/nanopb_generator.py index 2dad4ec..a21257b 100755 --- a/generator/nanopb_generator.py +++ b/generator/nanopb_generator.py @@ -463,7 +463,10 @@ class Field: ''' if self.rules == 'ONEOF': - result = ' PB_ONEOF_FIELD(%s, ' % self.union_name + if self.anonymous: + result = ' PB_ANONYMOUS_ONEOF_FIELD(%s, ' % self.union_name + else: + result = ' PB_ONEOF_FIELD(%s, ' % self.union_name else: result = ' PB_FIELD(' @@ -497,7 +500,10 @@ class Field: if self.rules == 'REPEATED' and self.allocation == 'STATIC': check.append('pb_membersize(%s, %s[0])' % (self.struct_name, self.name)) elif self.rules == 'ONEOF': - check.append('pb_membersize(%s, %s.%s)' % (self.struct_name, self.union_name, self.name)) + if self.anonymous: + check.append('pb_membersize(%s, %s)' % (self.struct_name, self.name)) + else: + check.append('pb_membersize(%s, %s.%s)' % (self.struct_name, self.union_name, self.name)) else: check.append('pb_membersize(%s, %s)' % (self.struct_name, self.name)) @@ -653,6 +659,7 @@ class OneOf(Field): self.allocation = 'ONEOF' self.default = None self.rules = 'ONEOF' + self.anonymous = False def add_field(self, field): if field.allocation == 'CALLBACK': @@ -661,6 +668,7 @@ class OneOf(Field): field.union_name = self.name field.rules = 'ONEOF' + field.anonymous = self.anonymous self.fields.append(field) self.fields.sort(key = lambda f: f.tag) @@ -674,7 +682,10 @@ class OneOf(Field): result += ' union {\n' for f in self.fields: result += ' ' + str(f).replace('\n', '\n ') + '\n' - result += ' } ' + self.name + ';' + if self.anonymous: + result += ' };' + else: + result += ' } ' + self.name + ';' return result def types(self): @@ -742,6 +753,8 @@ class Message: pass # No union and skip fields also else: oneof = OneOf(self.name, f) + if oneof_options.anonymous_oneof: + oneof.anonymous = True self.oneofs[i] = oneof self.fields.append(oneof) diff --git a/generator/proto/nanopb.proto b/generator/proto/nanopb.proto index b8671bb..9b2f0fb 100644 --- a/generator/proto/nanopb.proto +++ b/generator/proto/nanopb.proto @@ -62,6 +62,9 @@ message NanoPBOptions { // integer type tag for a message optional uint32 msgid = 9; + + // decode oneof as anonymous union + optional bool anonymous_oneof = 11 [default = false]; } // Extensions to protoc 'Descriptor' type in order to define options @@ -518,10 +518,25 @@ struct pb_extension_s { pb_membersize(st, u.m[0]), 0, ptr} #define PB_ONEOF_FIELD(union_name, tag, type, rules, allocation, placement, message, field, prevfield, ptr) \ - PB_ ## rules ## _ ## allocation(union_name, tag, message, field, \ + PB_ ## ONEOF_ ## allocation(union_name, tag, message, field, \ PB_DATAOFFSET_ ## placement(message, union_name.field, prevfield), \ PB_LTYPE_MAP_ ## type, ptr) +#define PB_ANONYMOUS_ONEOF_STATIC(u, tag, st, m, fd, ltype, ptr) \ + {tag, PB_ATYPE_STATIC | PB_HTYPE_ONEOF | ltype, \ + fd, pb_delta(st, which_ ## u, m), \ + pb_membersize(st, m), 0, ptr} + +#define PB_ANONYMOUS_ONEOF_POINTER(u, tag, st, m, fd, ltype, ptr) \ + {tag, PB_ATYPE_POINTER | PB_HTYPE_ONEOF | ltype, \ + fd, pb_delta(st, which_ ## u, m), \ + pb_membersize(st, m[0]), 0, ptr} + +#define PB_ANONYMOUS_ONEOF_FIELD(union_name, tag, type, rules, allocation, placement, message, field, prevfield, ptr) \ + PB_ ## ANONYMOUS_ONEOF_ ## allocation(union_name, tag, message, field, \ + PB_DATAOFFSET_ ## placement(message, field, prevfield), \ + PB_LTYPE_MAP_ ## type, ptr) + /* These macros are used for giving out error messages. * They are mostly a debugging aid; the main error information * is the true/false return value from functions. |