2 ** Defs are upb's internal representation of the constructs that can appear
5 ** - upb::MessageDefPtr (upb_msgdef): describes a "message" construct.
6 ** - upb::FieldDefPtr (upb_fielddef): describes a message field.
7 ** - upb::FileDefPtr (upb_filedef): describes a .proto file and its defs.
8 ** - upb::EnumDefPtr (upb_enumdef): describes an enum.
9 ** - upb::OneofDefPtr (upb_oneofdef): describes a oneof.
11 ** TODO: definitions of services.
13 ** This is a mixed C/C++ interface that offers a full API to both languages.
14 ** See the top-level README for more information.
21 #include "upb/table.int.h"
22 #include "google/protobuf/descriptor.upb.h"
40 #include "upb/port_def.inc"
43 typedef struct upb_enumdef upb_enumdef;
45 typedef struct upb_fielddef upb_fielddef;
47 typedef struct upb_filedef upb_filedef;
49 typedef struct upb_msgdef upb_msgdef;
51 typedef struct upb_oneofdef upb_oneofdef;
53 typedef struct upb_symtab upb_symtab;
56 UPB_SYNTAX_PROTO2 = 2,
60 /* All the different kind of well known type messages. For simplicity of check,
61 * number wrappers and string wrappers are grouped together. Make sure the
62 * order and merber of these groups are not changed.
65 UPB_WELLKNOWN_UNSPECIFIED,
67 UPB_WELLKNOWN_FIELDMASK,
68 UPB_WELLKNOWN_DURATION,
69 UPB_WELLKNOWN_TIMESTAMP,
71 UPB_WELLKNOWN_DOUBLEVALUE,
72 UPB_WELLKNOWN_FLOATVALUE,
73 UPB_WELLKNOWN_INT64VALUE,
74 UPB_WELLKNOWN_UINT64VALUE,
75 UPB_WELLKNOWN_INT32VALUE,
76 UPB_WELLKNOWN_UINT32VALUE,
78 UPB_WELLKNOWN_STRINGVALUE,
79 UPB_WELLKNOWN_BYTESVALUE,
80 UPB_WELLKNOWN_BOOLVALUE,
82 UPB_WELLKNOWN_LISTVALUE,
84 } upb_wellknowntype_t;
86 /* upb_fielddef ***************************************************************/
88 /* Maximum field number allowed for FieldDefs. This is an inherent limit of the
89 * protobuf wire format. */
90 #define UPB_MAX_FIELDNUMBER ((1 << 29) - 1)
96 const char *upb_fielddef_fullname(const upb_fielddef *f);
97 upb_fieldtype_t upb_fielddef_type(const upb_fielddef *f);
98 upb_descriptortype_t upb_fielddef_descriptortype(const upb_fielddef *f);
99 upb_label_t upb_fielddef_label(const upb_fielddef *f);
100 uint32_t upb_fielddef_number(const upb_fielddef *f);
101 const char *upb_fielddef_name(const upb_fielddef *f);
102 bool upb_fielddef_isextension(const upb_fielddef *f);
103 bool upb_fielddef_lazy(const upb_fielddef *f);
104 bool upb_fielddef_packed(const upb_fielddef *f);
105 size_t upb_fielddef_getjsonname(const upb_fielddef *f, char *buf, size_t len);
106 const upb_msgdef *upb_fielddef_containingtype(const upb_fielddef *f);
107 const upb_oneofdef *upb_fielddef_containingoneof(const upb_fielddef *f);
108 uint32_t upb_fielddef_index(const upb_fielddef *f);
109 bool upb_fielddef_issubmsg(const upb_fielddef *f);
110 bool upb_fielddef_isstring(const upb_fielddef *f);
111 bool upb_fielddef_isseq(const upb_fielddef *f);
112 bool upb_fielddef_isprimitive(const upb_fielddef *f);
113 bool upb_fielddef_ismap(const upb_fielddef *f);
114 int64_t upb_fielddef_defaultint64(const upb_fielddef *f);
115 int32_t upb_fielddef_defaultint32(const upb_fielddef *f);
116 uint64_t upb_fielddef_defaultuint64(const upb_fielddef *f);
117 uint32_t upb_fielddef_defaultuint32(const upb_fielddef *f);
118 bool upb_fielddef_defaultbool(const upb_fielddef *f);
119 float upb_fielddef_defaultfloat(const upb_fielddef *f);
120 double upb_fielddef_defaultdouble(const upb_fielddef *f);
121 const char *upb_fielddef_defaultstr(const upb_fielddef *f, size_t *len);
122 bool upb_fielddef_hassubdef(const upb_fielddef *f);
123 bool upb_fielddef_haspresence(const upb_fielddef *f);
124 const upb_msgdef *upb_fielddef_msgsubdef(const upb_fielddef *f);
125 const upb_enumdef *upb_fielddef_enumsubdef(const upb_fielddef *f);
128 uint32_t upb_fielddef_selectorbase(const upb_fielddef *f);
133 /* A upb_fielddef describes a single field in a message. It is most often
134 * found as a part of a upb_msgdef, but can also stand alone to represent
136 class upb::FieldDefPtr {
138 FieldDefPtr() : ptr_(nullptr) {}
139 explicit FieldDefPtr(const upb_fielddef *ptr) : ptr_(ptr) {}
141 const upb_fielddef* ptr() const { return ptr_; }
142 explicit operator bool() const { return ptr_ != nullptr; }
144 typedef upb_fieldtype_t Type;
145 typedef upb_label_t Label;
146 typedef upb_descriptortype_t DescriptorType;
148 const char* full_name() const { return upb_fielddef_fullname(ptr_); }
150 Type type() const { return upb_fielddef_type(ptr_); }
151 Label label() const { return upb_fielddef_label(ptr_); }
152 const char* name() const { return upb_fielddef_name(ptr_); }
153 uint32_t number() const { return upb_fielddef_number(ptr_); }
154 bool is_extension() const { return upb_fielddef_isextension(ptr_); }
156 /* Copies the JSON name for this field into the given buffer. Returns the
157 * actual size of the JSON name, including the NULL terminator. If the
158 * return value is 0, the JSON name is unset. If the return value is
159 * greater than len, the JSON name was truncated. The buffer is always
160 * NULL-terminated if len > 0.
162 * The JSON name always defaults to a camelCased version of the regular
163 * name. However if the regular name is unset, the JSON name will be unset
166 size_t GetJsonName(char *buf, size_t len) const {
167 return upb_fielddef_getjsonname(ptr_, buf, len);
170 /* Convenience version of the above function which copies the JSON name
171 * into the given string, returning false if the name is not set. */
173 bool GetJsonName(T* str) {
174 str->resize(GetJsonName(NULL, 0));
175 GetJsonName(&(*str)[0], str->size());
176 return str->size() > 0;
179 /* For UPB_TYPE_MESSAGE fields only where is_tag_delimited() == false,
180 * indicates whether this field should have lazy parsing handlers that yield
181 * the unparsed string for the submessage.
183 * TODO(haberman): I think we want to move this into a FieldOptions container
184 * when we add support for custom options (the FieldOptions struct will
185 * contain both regular FieldOptions like "lazy" *and* custom options). */
186 bool lazy() const { return upb_fielddef_lazy(ptr_); }
188 /* For non-string, non-submessage fields, this indicates whether binary
189 * protobufs are encoded in packed or non-packed format.
191 * TODO(haberman): see note above about putting options like this into a
192 * FieldOptions container. */
193 bool packed() const { return upb_fielddef_packed(ptr_); }
195 /* An integer that can be used as an index into an array of fields for
196 * whatever message this field belongs to. Guaranteed to be less than
197 * f->containing_type()->field_count(). May only be accessed once the def has
199 uint32_t index() const { return upb_fielddef_index(ptr_); }
201 /* The MessageDef to which this field belongs.
203 * If this field has been added to a MessageDef, that message can be retrieved
204 * directly (this is always the case for frozen FieldDefs).
206 * If the field has not yet been added to a MessageDef, you can set the name
207 * of the containing type symbolically instead. This is mostly useful for
208 * extensions, where the extension is declared separately from the message. */
209 MessageDefPtr containing_type() const;
211 /* The OneofDef to which this field belongs, or NULL if this field is not part
213 OneofDefPtr containing_oneof() const;
215 /* The field's type according to the enum in descriptor.proto. This is not
216 * the same as UPB_TYPE_*, because it distinguishes between (for example)
217 * INT32 and SINT32, whereas our "type" enum does not. This return of
218 * descriptor_type() is a function of type(), integer_format(), and
219 * is_tag_delimited(). */
220 DescriptorType descriptor_type() const {
221 return upb_fielddef_descriptortype(ptr_);
224 /* Convenient field type tests. */
225 bool IsSubMessage() const { return upb_fielddef_issubmsg(ptr_); }
226 bool IsString() const { return upb_fielddef_isstring(ptr_); }
227 bool IsSequence() const { return upb_fielddef_isseq(ptr_); }
228 bool IsPrimitive() const { return upb_fielddef_isprimitive(ptr_); }
229 bool IsMap() const { return upb_fielddef_ismap(ptr_); }
231 /* Returns the non-string default value for this fielddef, which may either
232 * be something the client set explicitly or the "default default" (0 for
233 * numbers, empty for strings). The field's type indicates the type of the
234 * returned value, except for enum fields that are still mutable.
236 * Requires that the given function matches the field's current type. */
237 int64_t default_int64() const { return upb_fielddef_defaultint64(ptr_); }
238 int32_t default_int32() const { return upb_fielddef_defaultint32(ptr_); }
239 uint64_t default_uint64() const { return upb_fielddef_defaultuint64(ptr_); }
240 uint32_t default_uint32() const { return upb_fielddef_defaultuint32(ptr_); }
241 bool default_bool() const { return upb_fielddef_defaultbool(ptr_); }
242 float default_float() const { return upb_fielddef_defaultfloat(ptr_); }
243 double default_double() const { return upb_fielddef_defaultdouble(ptr_); }
245 /* The resulting string is always NULL-terminated. If non-NULL, the length
246 * will be stored in *len. */
247 const char *default_string(size_t * len) const {
248 return upb_fielddef_defaultstr(ptr_, len);
251 /* Returns the enum or submessage def for this field, if any. The field's
252 * type must match (ie. you may only call enum_subdef() for fields where
253 * type() == UPB_TYPE_ENUM). */
254 EnumDefPtr enum_subdef() const;
255 MessageDefPtr message_subdef() const;
258 const upb_fielddef *ptr_;
261 #endif /* __cplusplus */
263 /* upb_oneofdef ***************************************************************/
269 typedef upb_inttable_iter upb_oneof_iter;
271 const char *upb_oneofdef_name(const upb_oneofdef *o);
272 const upb_msgdef *upb_oneofdef_containingtype(const upb_oneofdef *o);
273 int upb_oneofdef_numfields(const upb_oneofdef *o);
274 uint32_t upb_oneofdef_index(const upb_oneofdef *o);
277 * - ntof: look up a field by name.
278 * - ntofz: look up a field by name (as a null-terminated string).
279 * - itof: look up a field by number. */
280 const upb_fielddef *upb_oneofdef_ntof(const upb_oneofdef *o,
281 const char *name, size_t length);
282 UPB_INLINE const upb_fielddef *upb_oneofdef_ntofz(const upb_oneofdef *o,
284 return upb_oneofdef_ntof(o, name, strlen(name));
286 const upb_fielddef *upb_oneofdef_itof(const upb_oneofdef *o, uint32_t num);
289 * for(upb_oneof_begin(&i, e); !upb_oneof_done(&i); upb_oneof_next(&i)) {
293 void upb_oneof_begin(upb_oneof_iter *iter, const upb_oneofdef *o);
294 void upb_oneof_next(upb_oneof_iter *iter);
295 bool upb_oneof_done(upb_oneof_iter *iter);
296 upb_fielddef *upb_oneof_iter_field(const upb_oneof_iter *iter);
297 void upb_oneof_iter_setdone(upb_oneof_iter *iter);
298 bool upb_oneof_iter_isequal(const upb_oneof_iter *iter1,
299 const upb_oneof_iter *iter2);
304 /* Class that represents a oneof. */
305 class upb::OneofDefPtr {
307 OneofDefPtr() : ptr_(nullptr) {}
308 explicit OneofDefPtr(const upb_oneofdef *ptr) : ptr_(ptr) {}
310 const upb_oneofdef* ptr() const { return ptr_; }
311 explicit operator bool() { return ptr_ != nullptr; }
313 /* Returns the MessageDef that owns this OneofDef. */
314 MessageDefPtr containing_type() const;
316 /* Returns the name of this oneof. This is the name used to look up the oneof
317 * by name once added to a message def. */
318 const char* name() const { return upb_oneofdef_name(ptr_); }
320 /* Returns the number of fields currently defined in the oneof. */
321 int field_count() const { return upb_oneofdef_numfields(ptr_); }
323 /* Looks up by name. */
324 FieldDefPtr FindFieldByName(const char *name, size_t len) const {
325 return FieldDefPtr(upb_oneofdef_ntof(ptr_, name, len));
327 FieldDefPtr FindFieldByName(const char* name) const {
328 return FieldDefPtr(upb_oneofdef_ntofz(ptr_, name));
332 FieldDefPtr FindFieldByName(const T& str) const {
333 return FindFieldByName(str.c_str(), str.size());
336 /* Looks up by tag number. */
337 FieldDefPtr FindFieldByNumber(uint32_t num) const {
338 return FieldDefPtr(upb_oneofdef_itof(ptr_, num));
342 : public std::iterator<std::forward_iterator_tag, FieldDefPtr> {
344 void operator++() { upb_oneof_next(&iter_); }
346 FieldDefPtr operator*() const {
347 return FieldDefPtr(upb_oneof_iter_field(&iter_));
350 bool operator!=(const const_iterator& other) const {
351 return !upb_oneof_iter_isequal(&iter_, &other.iter_);
354 bool operator==(const const_iterator& other) const {
355 return upb_oneof_iter_isequal(&iter_, &other.iter_);
359 friend class OneofDefPtr;
362 explicit const_iterator(OneofDefPtr o) {
363 upb_oneof_begin(&iter_, o.ptr());
365 static const_iterator end() {
367 upb_oneof_iter_setdone(&iter.iter_);
371 upb_oneof_iter iter_;
374 const_iterator begin() const { return const_iterator(*this); }
375 const_iterator end() const { return const_iterator::end(); }
378 const upb_oneofdef *ptr_;
381 inline upb::OneofDefPtr upb::FieldDefPtr::containing_oneof() const {
382 return OneofDefPtr(upb_fielddef_containingoneof(ptr_));
385 #endif /* __cplusplus */
387 /* upb_msgdef *****************************************************************/
389 typedef upb_inttable_iter upb_msg_field_iter;
390 typedef upb_strtable_iter upb_msg_oneof_iter;
392 /* Well-known field tag numbers for map-entry messages. */
393 #define UPB_MAPENTRY_KEY 1
394 #define UPB_MAPENTRY_VALUE 2
396 /* Well-known field tag numbers for Any messages. */
397 #define UPB_ANY_TYPE 1
398 #define UPB_ANY_VALUE 2
400 /* Well-known field tag numbers for timestamp messages. */
401 #define UPB_DURATION_SECONDS 1
402 #define UPB_DURATION_NANOS 2
404 /* Well-known field tag numbers for duration messages. */
405 #define UPB_TIMESTAMP_SECONDS 1
406 #define UPB_TIMESTAMP_NANOS 2
412 const char *upb_msgdef_fullname(const upb_msgdef *m);
413 const upb_filedef *upb_msgdef_file(const upb_msgdef *m);
414 const char *upb_msgdef_name(const upb_msgdef *m);
415 int upb_msgdef_numoneofs(const upb_msgdef *m);
416 upb_syntax_t upb_msgdef_syntax(const upb_msgdef *m);
417 bool upb_msgdef_mapentry(const upb_msgdef *m);
418 upb_wellknowntype_t upb_msgdef_wellknowntype(const upb_msgdef *m);
419 bool upb_msgdef_isnumberwrapper(const upb_msgdef *m);
420 bool upb_msgdef_setsyntax(upb_msgdef *m, upb_syntax_t syntax);
421 const upb_fielddef *upb_msgdef_itof(const upb_msgdef *m, uint32_t i);
422 const upb_fielddef *upb_msgdef_ntof(const upb_msgdef *m, const char *name,
424 const upb_oneofdef *upb_msgdef_ntoo(const upb_msgdef *m, const char *name,
426 int upb_msgdef_numfields(const upb_msgdef *m);
427 int upb_msgdef_numoneofs(const upb_msgdef *m);
429 UPB_INLINE const upb_oneofdef *upb_msgdef_ntooz(const upb_msgdef *m,
431 return upb_msgdef_ntoo(m, name, strlen(name));
434 UPB_INLINE const upb_fielddef *upb_msgdef_ntofz(const upb_msgdef *m,
436 return upb_msgdef_ntof(m, name, strlen(name));
440 size_t upb_msgdef_selectorcount(const upb_msgdef *m);
441 uint32_t upb_msgdef_submsgfieldcount(const upb_msgdef *m);
443 /* Lookup of either field or oneof by name. Returns whether either was found.
444 * If the return is true, then the found def will be set, and the non-found
445 * one set to NULL. */
446 bool upb_msgdef_lookupname(const upb_msgdef *m, const char *name, size_t len,
447 const upb_fielddef **f, const upb_oneofdef **o);
449 UPB_INLINE bool upb_msgdef_lookupnamez(const upb_msgdef *m, const char *name,
450 const upb_fielddef **f,
451 const upb_oneofdef **o) {
452 return upb_msgdef_lookupname(m, name, strlen(name), f, o);
455 /* Iteration over fields and oneofs. For example:
457 * upb_msg_field_iter i;
458 * for(upb_msg_field_begin(&i, m);
459 * !upb_msg_field_done(&i);
460 * upb_msg_field_next(&i)) {
461 * upb_fielddef *f = upb_msg_iter_field(&i);
465 * For C we don't have separate iterators for const and non-const.
466 * It is the caller's responsibility to cast the upb_fielddef* to
467 * const if the upb_msgdef* is const. */
468 void upb_msg_field_begin(upb_msg_field_iter *iter, const upb_msgdef *m);
469 void upb_msg_field_next(upb_msg_field_iter *iter);
470 bool upb_msg_field_done(const upb_msg_field_iter *iter);
471 upb_fielddef *upb_msg_iter_field(const upb_msg_field_iter *iter);
472 void upb_msg_field_iter_setdone(upb_msg_field_iter *iter);
473 bool upb_msg_field_iter_isequal(const upb_msg_field_iter * iter1,
474 const upb_msg_field_iter * iter2);
476 /* Similar to above, we also support iterating through the oneofs in a
478 void upb_msg_oneof_begin(upb_msg_oneof_iter * iter, const upb_msgdef *m);
479 void upb_msg_oneof_next(upb_msg_oneof_iter * iter);
480 bool upb_msg_oneof_done(const upb_msg_oneof_iter *iter);
481 const upb_oneofdef *upb_msg_iter_oneof(const upb_msg_oneof_iter *iter);
482 void upb_msg_oneof_iter_setdone(upb_msg_oneof_iter * iter);
483 bool upb_msg_oneof_iter_isequal(const upb_msg_oneof_iter *iter1,
484 const upb_msg_oneof_iter *iter2);
489 /* Structure that describes a single .proto message type. */
490 class upb::MessageDefPtr {
492 MessageDefPtr() : ptr_(nullptr) {}
493 explicit MessageDefPtr(const upb_msgdef *ptr) : ptr_(ptr) {}
495 const upb_msgdef *ptr() const { return ptr_; }
496 explicit operator bool() const { return ptr_ != nullptr; }
498 const char* full_name() const { return upb_msgdef_fullname(ptr_); }
499 const char* name() const { return upb_msgdef_name(ptr_); }
501 /* The number of fields that belong to the MessageDef. */
502 int field_count() const { return upb_msgdef_numfields(ptr_); }
504 /* The number of oneofs that belong to the MessageDef. */
505 int oneof_count() const { return upb_msgdef_numoneofs(ptr_); }
507 upb_syntax_t syntax() const { return upb_msgdef_syntax(ptr_); }
509 /* These return null pointers if the field is not found. */
510 FieldDefPtr FindFieldByNumber(uint32_t number) const {
511 return FieldDefPtr(upb_msgdef_itof(ptr_, number));
513 FieldDefPtr FindFieldByName(const char* name, size_t len) const {
514 return FieldDefPtr(upb_msgdef_ntof(ptr_, name, len));
516 FieldDefPtr FindFieldByName(const char *name) const {
517 return FieldDefPtr(upb_msgdef_ntofz(ptr_, name));
521 FieldDefPtr FindFieldByName(const T& str) const {
522 return FindFieldByName(str.c_str(), str.size());
525 OneofDefPtr FindOneofByName(const char* name, size_t len) const {
526 return OneofDefPtr(upb_msgdef_ntoo(ptr_, name, len));
529 OneofDefPtr FindOneofByName(const char *name) const {
530 return OneofDefPtr(upb_msgdef_ntooz(ptr_, name));
534 OneofDefPtr FindOneofByName(const T &str) const {
535 return FindOneofByName(str.c_str(), str.size());
538 /* Is this message a map entry? */
539 bool mapentry() const { return upb_msgdef_mapentry(ptr_); }
541 /* Return the type of well known type message. UPB_WELLKNOWN_UNSPECIFIED for
542 * non-well-known message. */
543 upb_wellknowntype_t wellknowntype() const {
544 return upb_msgdef_wellknowntype(ptr_);
547 /* Whether is a number wrapper. */
548 bool isnumberwrapper() const { return upb_msgdef_isnumberwrapper(ptr_); }
550 /* Iteration over fields. The order is undefined. */
551 class const_field_iterator
552 : public std::iterator<std::forward_iterator_tag, FieldDefPtr> {
554 void operator++() { upb_msg_field_next(&iter_); }
556 FieldDefPtr operator*() const {
557 return FieldDefPtr(upb_msg_iter_field(&iter_));
560 bool operator!=(const const_field_iterator &other) const {
561 return !upb_msg_field_iter_isequal(&iter_, &other.iter_);
564 bool operator==(const const_field_iterator &other) const {
565 return upb_msg_field_iter_isequal(&iter_, &other.iter_);
569 friend class MessageDefPtr;
571 explicit const_field_iterator() {}
573 explicit const_field_iterator(MessageDefPtr msg) {
574 upb_msg_field_begin(&iter_, msg.ptr());
577 static const_field_iterator end() {
578 const_field_iterator iter;
579 upb_msg_field_iter_setdone(&iter.iter_);
583 upb_msg_field_iter iter_;
586 /* Iteration over oneofs. The order is undefined. */
587 class const_oneof_iterator
588 : public std::iterator<std::forward_iterator_tag, OneofDefPtr> {
591 void operator++() { upb_msg_oneof_next(&iter_); }
593 OneofDefPtr operator*() const {
594 return OneofDefPtr(upb_msg_iter_oneof(&iter_));
597 bool operator!=(const const_oneof_iterator& other) const {
598 return !upb_msg_oneof_iter_isequal(&iter_, &other.iter_);
601 bool operator==(const const_oneof_iterator &other) const {
602 return upb_msg_oneof_iter_isequal(&iter_, &other.iter_);
606 friend class MessageDefPtr;
608 const_oneof_iterator() {}
610 explicit const_oneof_iterator(MessageDefPtr msg) {
611 upb_msg_oneof_begin(&iter_, msg.ptr());
614 static const_oneof_iterator end() {
615 const_oneof_iterator iter;
616 upb_msg_oneof_iter_setdone(&iter.iter_);
620 upb_msg_oneof_iter iter_;
623 class ConstFieldAccessor {
625 explicit ConstFieldAccessor(const upb_msgdef* md) : md_(md) {}
626 const_field_iterator begin() { return MessageDefPtr(md_).field_begin(); }
627 const_field_iterator end() { return MessageDefPtr(md_).field_end(); }
629 const upb_msgdef* md_;
632 class ConstOneofAccessor {
634 explicit ConstOneofAccessor(const upb_msgdef* md) : md_(md) {}
635 const_oneof_iterator begin() { return MessageDefPtr(md_).oneof_begin(); }
636 const_oneof_iterator end() { return MessageDefPtr(md_).oneof_end(); }
638 const upb_msgdef* md_;
641 const_field_iterator field_begin() const {
642 return const_field_iterator(*this);
645 const_field_iterator field_end() const { return const_field_iterator::end(); }
647 const_oneof_iterator oneof_begin() const {
648 return const_oneof_iterator(*this);
651 const_oneof_iterator oneof_end() const { return const_oneof_iterator::end(); }
653 ConstFieldAccessor fields() const { return ConstFieldAccessor(ptr()); }
654 ConstOneofAccessor oneofs() const { return ConstOneofAccessor(ptr()); }
657 const upb_msgdef* ptr_;
660 inline upb::MessageDefPtr upb::FieldDefPtr::message_subdef() const {
661 return MessageDefPtr(upb_fielddef_msgsubdef(ptr_));
664 inline upb::MessageDefPtr upb::FieldDefPtr::containing_type() const {
665 return MessageDefPtr(upb_fielddef_containingtype(ptr_));
668 inline upb::MessageDefPtr upb::OneofDefPtr::containing_type() const {
669 return MessageDefPtr(upb_oneofdef_containingtype(ptr_));
672 #endif /* __cplusplus */
674 /* upb_enumdef ****************************************************************/
676 typedef upb_strtable_iter upb_enum_iter;
678 const char *upb_enumdef_fullname(const upb_enumdef *e);
679 const char *upb_enumdef_name(const upb_enumdef *e);
680 const upb_filedef *upb_enumdef_file(const upb_enumdef *e);
681 int32_t upb_enumdef_default(const upb_enumdef *e);
682 int upb_enumdef_numvals(const upb_enumdef *e);
685 * - ntoi: look up a name with specified length.
686 * - ntoiz: look up a name provided as a null-terminated string.
687 * - iton: look up an integer, returning the name as a null-terminated
689 bool upb_enumdef_ntoi(const upb_enumdef *e, const char *name, size_t len,
691 UPB_INLINE bool upb_enumdef_ntoiz(const upb_enumdef *e,
692 const char *name, int32_t *num) {
693 return upb_enumdef_ntoi(e, name, strlen(name), num);
695 const char *upb_enumdef_iton(const upb_enumdef *e, int32_t num);
698 * for(upb_enum_begin(&i, e); !upb_enum_done(&i); upb_enum_next(&i)) {
702 void upb_enum_begin(upb_enum_iter *iter, const upb_enumdef *e);
703 void upb_enum_next(upb_enum_iter *iter);
704 bool upb_enum_done(upb_enum_iter *iter);
705 const char *upb_enum_iter_name(upb_enum_iter *iter);
706 int32_t upb_enum_iter_number(upb_enum_iter *iter);
710 class upb::EnumDefPtr {
712 EnumDefPtr() : ptr_(nullptr) {}
713 explicit EnumDefPtr(const upb_enumdef* ptr) : ptr_(ptr) {}
715 const upb_enumdef* ptr() const { return ptr_; }
716 explicit operator bool() const { return ptr_ != nullptr; }
718 const char* full_name() const { return upb_enumdef_fullname(ptr_); }
719 const char* name() const { return upb_enumdef_name(ptr_); }
721 /* The value that is used as the default when no field default is specified.
722 * If not set explicitly, the first value that was added will be used.
723 * The default value must be a member of the enum.
724 * Requires that value_count() > 0. */
725 int32_t default_value() const { return upb_enumdef_default(ptr_); }
727 /* Returns the number of values currently defined in the enum. Note that
728 * multiple names can refer to the same number, so this may be greater than
729 * the total number of unique numbers. */
730 int value_count() const { return upb_enumdef_numvals(ptr_); }
732 /* Lookups from name to integer, returning true if found. */
733 bool FindValueByName(const char *name, int32_t *num) const {
734 return upb_enumdef_ntoiz(ptr_, name, num);
737 /* Finds the name corresponding to the given number, or NULL if none was
738 * found. If more than one name corresponds to this number, returns the
739 * first one that was added. */
740 const char *FindValueByNumber(int32_t num) const {
741 return upb_enumdef_iton(ptr_, num);
744 /* Iteration over name/value pairs. The order is undefined.
745 * Adding an enum val invalidates any iterators.
747 * TODO: make compatible with range-for, with elements as pairs? */
750 explicit Iterator(EnumDefPtr e) { upb_enum_begin(&iter_, e.ptr()); }
752 int32_t number() { return upb_enum_iter_number(&iter_); }
753 const char *name() { return upb_enum_iter_name(&iter_); }
754 bool Done() { return upb_enum_done(&iter_); }
755 void Next() { return upb_enum_next(&iter_); }
762 const upb_enumdef *ptr_;
765 inline upb::EnumDefPtr upb::FieldDefPtr::enum_subdef() const {
766 return EnumDefPtr(upb_fielddef_enumsubdef(ptr_));
769 #endif /* __cplusplus */
771 /* upb_filedef ****************************************************************/
777 const char *upb_filedef_name(const upb_filedef *f);
778 const char *upb_filedef_package(const upb_filedef *f);
779 const char *upb_filedef_phpprefix(const upb_filedef *f);
780 const char *upb_filedef_phpnamespace(const upb_filedef *f);
781 upb_syntax_t upb_filedef_syntax(const upb_filedef *f);
782 int upb_filedef_depcount(const upb_filedef *f);
783 int upb_filedef_msgcount(const upb_filedef *f);
784 int upb_filedef_enumcount(const upb_filedef *f);
785 const upb_filedef *upb_filedef_dep(const upb_filedef *f, int i);
786 const upb_msgdef *upb_filedef_msg(const upb_filedef *f, int i);
787 const upb_enumdef *upb_filedef_enum(const upb_filedef *f, int i);
792 /* Class that represents a .proto file with some things defined in it.
794 * Many users won't care about FileDefs, but they are necessary if you want to
795 * read the values of file-level options. */
796 class upb::FileDefPtr {
798 explicit FileDefPtr(const upb_filedef *ptr) : ptr_(ptr) {}
800 const upb_filedef* ptr() const { return ptr_; }
801 explicit operator bool() const { return ptr_ != nullptr; }
803 /* Get/set name of the file (eg. "foo/bar.proto"). */
804 const char* name() const { return upb_filedef_name(ptr_); }
806 /* Package name for definitions inside the file (eg. "foo.bar"). */
807 const char* package() const { return upb_filedef_package(ptr_); }
809 /* Sets the php class prefix which is prepended to all php generated classes
810 * from this .proto. Default is empty. */
811 const char* phpprefix() const { return upb_filedef_phpprefix(ptr_); }
813 /* Use this option to change the namespace of php generated classes. Default
814 * is empty. When this option is empty, the package name will be used for
815 * determining the namespace. */
816 const char* phpnamespace() const { return upb_filedef_phpnamespace(ptr_); }
818 /* Syntax for the file. Defaults to proto2. */
819 upb_syntax_t syntax() const { return upb_filedef_syntax(ptr_); }
821 /* Get the list of dependencies from the file. These are returned in the
822 * order that they were added to the FileDefPtr. */
823 int dependency_count() const { return upb_filedef_depcount(ptr_); }
824 const FileDefPtr dependency(int index) const {
825 return FileDefPtr(upb_filedef_dep(ptr_, index));
829 const upb_filedef* ptr_;
832 #endif /* __cplusplus */
834 /* upb_symtab *****************************************************************/
840 upb_symtab *upb_symtab_new(void);
841 void upb_symtab_free(upb_symtab* s);
842 const upb_msgdef *upb_symtab_lookupmsg(const upb_symtab *s, const char *sym);
843 const upb_msgdef *upb_symtab_lookupmsg2(
844 const upb_symtab *s, const char *sym, size_t len);
845 const upb_enumdef *upb_symtab_lookupenum(const upb_symtab *s, const char *sym);
846 const upb_filedef *upb_symtab_lookupfile(const upb_symtab *s, const char *name);
847 int upb_symtab_filecount(const upb_symtab *s);
848 const upb_filedef *upb_symtab_addfile(
849 upb_symtab *s, const google_protobuf_FileDescriptorProto *file,
852 /* For generated code only: loads a generated descriptor. */
853 typedef struct upb_def_init {
854 struct upb_def_init **deps;
855 const char *filename;
856 upb_strview descriptor;
859 bool _upb_symtab_loaddefinit(upb_symtab *s, const upb_def_init *init);
864 /* Non-const methods in upb::SymbolTable are NOT thread-safe. */
865 class upb::SymbolTable {
867 SymbolTable() : ptr_(upb_symtab_new(), upb_symtab_free) {}
868 explicit SymbolTable(upb_symtab* s) : ptr_(s, upb_symtab_free) {}
870 const upb_symtab* ptr() const { return ptr_.get(); }
871 upb_symtab* ptr() { return ptr_.get(); }
873 /* Finds an entry in the symbol table with this exact name. If not found,
875 MessageDefPtr LookupMessage(const char *sym) const {
876 return MessageDefPtr(upb_symtab_lookupmsg(ptr_.get(), sym));
879 EnumDefPtr LookupEnum(const char *sym) const {
880 return EnumDefPtr(upb_symtab_lookupenum(ptr_.get(), sym));
883 FileDefPtr LookupFile(const char *name) const {
884 return FileDefPtr(upb_symtab_lookupfile(ptr_.get(), name));
887 /* TODO: iteration? */
889 /* Adds the given serialized FileDescriptorProto to the pool. */
890 FileDefPtr AddFile(const google_protobuf_FileDescriptorProto *file_proto,
893 upb_symtab_addfile(ptr_.get(), file_proto, status->ptr()));
897 std::unique_ptr<upb_symtab, decltype(&upb_symtab_free)> ptr_;
900 UPB_INLINE const char* upb_safecstr(const std::string& str) {
901 UPB_ASSERT(str.size() == std::strlen(str.c_str()));
905 #endif /* __cplusplus */
907 #include "upb/port_undef.inc"
909 #endif /* UPB_DEF_H_ */