GPBUtilities_PackagePrivate.h 14 KB

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  1. // Protocol Buffers - Google's data interchange format
  2. // Copyright 2008 Google Inc. All rights reserved.
  3. // https://developers.google.com/protocol-buffers/
  4. //
  5. // Redistribution and use in source and binary forms, with or without
  6. // modification, are permitted provided that the following conditions are
  7. // met:
  8. //
  9. // * Redistributions of source code must retain the above copyright
  10. // notice, this list of conditions and the following disclaimer.
  11. // * Redistributions in binary form must reproduce the above
  12. // copyright notice, this list of conditions and the following disclaimer
  13. // in the documentation and/or other materials provided with the
  14. // distribution.
  15. // * Neither the name of Google Inc. nor the names of its
  16. // contributors may be used to endorse or promote products derived from
  17. // this software without specific prior written permission.
  18. //
  19. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20. // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21. // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22. // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23. // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24. // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25. // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26. // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27. // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28. // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29. // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30. #import <Foundation/Foundation.h>
  31. #import "GPBUtilities.h"
  32. #import "GPBDescriptor_PackagePrivate.h"
  33. // Macros for stringifying library symbols. These are used in the generated
  34. // PB descriptor classes wherever a library symbol name is represented as a
  35. // string. See README.google for more information.
  36. #define GPBStringify(S) #S
  37. #define GPBStringifySymbol(S) GPBStringify(S)
  38. #define GPBNSStringify(S) @#S
  39. #define GPBNSStringifySymbol(S) GPBNSStringify(S)
  40. // Constant to internally mark when there is no has bit.
  41. #define GPBNoHasBit INT32_MAX
  42. CF_EXTERN_C_BEGIN
  43. // These two are used to inject a runtime check for version mismatch into the
  44. // generated sources to make sure they are linked with a supporting runtime.
  45. void GPBCheckRuntimeVersionSupport(int32_t objcRuntimeVersion);
  46. GPB_INLINE void GPB_DEBUG_CHECK_RUNTIME_VERSIONS() {
  47. // NOTE: By being inline here, this captures the value from the library's
  48. // headers at the time the generated code was compiled.
  49. #if defined(DEBUG) && DEBUG
  50. GPBCheckRuntimeVersionSupport(GOOGLE_PROTOBUF_OBJC_VERSION);
  51. #endif
  52. }
  53. // Legacy version of the checks, remove when GOOGLE_PROTOBUF_OBJC_GEN_VERSION
  54. // goes away (see more info in GPBBootstrap.h).
  55. void GPBCheckRuntimeVersionInternal(int32_t version);
  56. GPB_INLINE void GPBDebugCheckRuntimeVersion() {
  57. #if defined(DEBUG) && DEBUG
  58. GPBCheckRuntimeVersionInternal(GOOGLE_PROTOBUF_OBJC_GEN_VERSION);
  59. #endif
  60. }
  61. // Conversion functions for de/serializing floating point types.
  62. GPB_INLINE int64_t GPBConvertDoubleToInt64(double v) {
  63. union { double f; int64_t i; } u;
  64. u.f = v;
  65. return u.i;
  66. }
  67. GPB_INLINE int32_t GPBConvertFloatToInt32(float v) {
  68. union { float f; int32_t i; } u;
  69. u.f = v;
  70. return u.i;
  71. }
  72. GPB_INLINE double GPBConvertInt64ToDouble(int64_t v) {
  73. union { double f; int64_t i; } u;
  74. u.i = v;
  75. return u.f;
  76. }
  77. GPB_INLINE float GPBConvertInt32ToFloat(int32_t v) {
  78. union { float f; int32_t i; } u;
  79. u.i = v;
  80. return u.f;
  81. }
  82. GPB_INLINE int32_t GPBLogicalRightShift32(int32_t value, int32_t spaces) {
  83. return (int32_t)((uint32_t)(value) >> spaces);
  84. }
  85. GPB_INLINE int64_t GPBLogicalRightShift64(int64_t value, int32_t spaces) {
  86. return (int64_t)((uint64_t)(value) >> spaces);
  87. }
  88. // Decode a ZigZag-encoded 32-bit value. ZigZag encodes signed integers
  89. // into values that can be efficiently encoded with varint. (Otherwise,
  90. // negative values must be sign-extended to 64 bits to be varint encoded,
  91. // thus always taking 10 bytes on the wire.)
  92. GPB_INLINE int32_t GPBDecodeZigZag32(uint32_t n) {
  93. return (int32_t)(GPBLogicalRightShift32((int32_t)n, 1) ^ -((int32_t)(n) & 1));
  94. }
  95. // Decode a ZigZag-encoded 64-bit value. ZigZag encodes signed integers
  96. // into values that can be efficiently encoded with varint. (Otherwise,
  97. // negative values must be sign-extended to 64 bits to be varint encoded,
  98. // thus always taking 10 bytes on the wire.)
  99. GPB_INLINE int64_t GPBDecodeZigZag64(uint64_t n) {
  100. return (int64_t)(GPBLogicalRightShift64((int64_t)n, 1) ^ -((int64_t)(n) & 1));
  101. }
  102. // Encode a ZigZag-encoded 32-bit value. ZigZag encodes signed integers
  103. // into values that can be efficiently encoded with varint. (Otherwise,
  104. // negative values must be sign-extended to 64 bits to be varint encoded,
  105. // thus always taking 10 bytes on the wire.)
  106. GPB_INLINE uint32_t GPBEncodeZigZag32(int32_t n) {
  107. // Note: the right-shift must be arithmetic
  108. return ((uint32_t)n << 1) ^ (uint32_t)(n >> 31);
  109. }
  110. // Encode a ZigZag-encoded 64-bit value. ZigZag encodes signed integers
  111. // into values that can be efficiently encoded with varint. (Otherwise,
  112. // negative values must be sign-extended to 64 bits to be varint encoded,
  113. // thus always taking 10 bytes on the wire.)
  114. GPB_INLINE uint64_t GPBEncodeZigZag64(int64_t n) {
  115. // Note: the right-shift must be arithmetic
  116. return ((uint64_t)n << 1) ^ (uint64_t)(n >> 63);
  117. }
  118. #pragma clang diagnostic push
  119. #pragma clang diagnostic ignored "-Wswitch-enum"
  120. #pragma clang diagnostic ignored "-Wdirect-ivar-access"
  121. GPB_INLINE BOOL GPBDataTypeIsObject(GPBDataType type) {
  122. switch (type) {
  123. case GPBDataTypeBytes:
  124. case GPBDataTypeString:
  125. case GPBDataTypeMessage:
  126. case GPBDataTypeGroup:
  127. return YES;
  128. default:
  129. return NO;
  130. }
  131. }
  132. GPB_INLINE BOOL GPBDataTypeIsMessage(GPBDataType type) {
  133. switch (type) {
  134. case GPBDataTypeMessage:
  135. case GPBDataTypeGroup:
  136. return YES;
  137. default:
  138. return NO;
  139. }
  140. }
  141. GPB_INLINE BOOL GPBFieldDataTypeIsMessage(GPBFieldDescriptor *field) {
  142. return GPBDataTypeIsMessage(field->description_->dataType);
  143. }
  144. GPB_INLINE BOOL GPBFieldDataTypeIsObject(GPBFieldDescriptor *field) {
  145. return GPBDataTypeIsObject(field->description_->dataType);
  146. }
  147. GPB_INLINE BOOL GPBExtensionIsMessage(GPBExtensionDescriptor *ext) {
  148. return GPBDataTypeIsMessage(ext->description_->dataType);
  149. }
  150. // The field is an array/map or it has an object value.
  151. GPB_INLINE BOOL GPBFieldStoresObject(GPBFieldDescriptor *field) {
  152. GPBMessageFieldDescription *desc = field->description_;
  153. if ((desc->flags & (GPBFieldRepeated | GPBFieldMapKeyMask)) != 0) {
  154. return YES;
  155. }
  156. return GPBDataTypeIsObject(desc->dataType);
  157. }
  158. BOOL GPBGetHasIvar(GPBMessage *self, int32_t index, uint32_t fieldNumber);
  159. void GPBSetHasIvar(GPBMessage *self, int32_t idx, uint32_t fieldNumber,
  160. BOOL value);
  161. uint32_t GPBGetHasOneof(GPBMessage *self, int32_t index);
  162. GPB_INLINE BOOL
  163. GPBGetHasIvarField(GPBMessage *self, GPBFieldDescriptor *field) {
  164. GPBMessageFieldDescription *fieldDesc = field->description_;
  165. return GPBGetHasIvar(self, fieldDesc->hasIndex, fieldDesc->number);
  166. }
  167. GPB_INLINE void GPBSetHasIvarField(GPBMessage *self, GPBFieldDescriptor *field,
  168. BOOL value) {
  169. GPBMessageFieldDescription *fieldDesc = field->description_;
  170. GPBSetHasIvar(self, fieldDesc->hasIndex, fieldDesc->number, value);
  171. }
  172. void GPBMaybeClearOneof(GPBMessage *self, GPBOneofDescriptor *oneof,
  173. int32_t oneofHasIndex, uint32_t fieldNumberNotToClear);
  174. #pragma clang diagnostic pop
  175. //%PDDM-DEFINE GPB_IVAR_SET_DECL(NAME, TYPE)
  176. //%void GPBSet##NAME##IvarWithFieldInternal(GPBMessage *self,
  177. //% NAME$S GPBFieldDescriptor *field,
  178. //% NAME$S TYPE value,
  179. //% NAME$S GPBFileSyntax syntax);
  180. //%PDDM-EXPAND GPB_IVAR_SET_DECL(Bool, BOOL)
  181. // This block of code is generated, do not edit it directly.
  182. void GPBSetBoolIvarWithFieldInternal(GPBMessage *self,
  183. GPBFieldDescriptor *field,
  184. BOOL value,
  185. GPBFileSyntax syntax);
  186. //%PDDM-EXPAND GPB_IVAR_SET_DECL(Int32, int32_t)
  187. // This block of code is generated, do not edit it directly.
  188. void GPBSetInt32IvarWithFieldInternal(GPBMessage *self,
  189. GPBFieldDescriptor *field,
  190. int32_t value,
  191. GPBFileSyntax syntax);
  192. //%PDDM-EXPAND GPB_IVAR_SET_DECL(UInt32, uint32_t)
  193. // This block of code is generated, do not edit it directly.
  194. void GPBSetUInt32IvarWithFieldInternal(GPBMessage *self,
  195. GPBFieldDescriptor *field,
  196. uint32_t value,
  197. GPBFileSyntax syntax);
  198. //%PDDM-EXPAND GPB_IVAR_SET_DECL(Int64, int64_t)
  199. // This block of code is generated, do not edit it directly.
  200. void GPBSetInt64IvarWithFieldInternal(GPBMessage *self,
  201. GPBFieldDescriptor *field,
  202. int64_t value,
  203. GPBFileSyntax syntax);
  204. //%PDDM-EXPAND GPB_IVAR_SET_DECL(UInt64, uint64_t)
  205. // This block of code is generated, do not edit it directly.
  206. void GPBSetUInt64IvarWithFieldInternal(GPBMessage *self,
  207. GPBFieldDescriptor *field,
  208. uint64_t value,
  209. GPBFileSyntax syntax);
  210. //%PDDM-EXPAND GPB_IVAR_SET_DECL(Float, float)
  211. // This block of code is generated, do not edit it directly.
  212. void GPBSetFloatIvarWithFieldInternal(GPBMessage *self,
  213. GPBFieldDescriptor *field,
  214. float value,
  215. GPBFileSyntax syntax);
  216. //%PDDM-EXPAND GPB_IVAR_SET_DECL(Double, double)
  217. // This block of code is generated, do not edit it directly.
  218. void GPBSetDoubleIvarWithFieldInternal(GPBMessage *self,
  219. GPBFieldDescriptor *field,
  220. double value,
  221. GPBFileSyntax syntax);
  222. //%PDDM-EXPAND GPB_IVAR_SET_DECL(Enum, int32_t)
  223. // This block of code is generated, do not edit it directly.
  224. void GPBSetEnumIvarWithFieldInternal(GPBMessage *self,
  225. GPBFieldDescriptor *field,
  226. int32_t value,
  227. GPBFileSyntax syntax);
  228. //%PDDM-EXPAND-END (8 expansions)
  229. int32_t GPBGetEnumIvarWithFieldInternal(GPBMessage *self,
  230. GPBFieldDescriptor *field,
  231. GPBFileSyntax syntax);
  232. id GPBGetObjectIvarWithField(GPBMessage *self, GPBFieldDescriptor *field);
  233. void GPBSetObjectIvarWithFieldInternal(GPBMessage *self,
  234. GPBFieldDescriptor *field, id value,
  235. GPBFileSyntax syntax);
  236. void GPBSetRetainedObjectIvarWithFieldInternal(GPBMessage *self,
  237. GPBFieldDescriptor *field,
  238. id __attribute__((ns_consumed))
  239. value,
  240. GPBFileSyntax syntax);
  241. // GPBGetObjectIvarWithField will automatically create the field (message) if
  242. // it doesn't exist. GPBGetObjectIvarWithFieldNoAutocreate will return nil.
  243. id GPBGetObjectIvarWithFieldNoAutocreate(GPBMessage *self,
  244. GPBFieldDescriptor *field);
  245. void GPBSetAutocreatedRetainedObjectIvarWithField(
  246. GPBMessage *self, GPBFieldDescriptor *field,
  247. id __attribute__((ns_consumed)) value);
  248. // Clears and releases the autocreated message ivar, if it's autocreated. If
  249. // it's not set as autocreated, this method does nothing.
  250. void GPBClearAutocreatedMessageIvarWithField(GPBMessage *self,
  251. GPBFieldDescriptor *field);
  252. // Returns an Objective C encoding for |selector|. |instanceSel| should be
  253. // YES if it's an instance selector (as opposed to a class selector).
  254. // |selector| must be a selector from MessageSignatureProtocol.
  255. const char *GPBMessageEncodingForSelector(SEL selector, BOOL instanceSel);
  256. // Helper for text format name encoding.
  257. // decodeData is the data describing the sepecial decodes.
  258. // key and inputString are the input that needs decoding.
  259. NSString *GPBDecodeTextFormatName(const uint8_t *decodeData, int32_t key,
  260. NSString *inputString);
  261. // A series of selectors that are used solely to get @encoding values
  262. // for them by the dynamic protobuf runtime code. See
  263. // GPBMessageEncodingForSelector for details. GPBRootObject conforms to
  264. // the protocol so that it is encoded in the Objective C runtime.
  265. @protocol GPBMessageSignatureProtocol
  266. @optional
  267. #define GPB_MESSAGE_SIGNATURE_ENTRY(TYPE, NAME) \
  268. -(TYPE)get##NAME; \
  269. -(void)set##NAME : (TYPE)value; \
  270. -(TYPE)get##NAME##AtIndex : (NSUInteger)index;
  271. GPB_MESSAGE_SIGNATURE_ENTRY(BOOL, Bool)
  272. GPB_MESSAGE_SIGNATURE_ENTRY(uint32_t, Fixed32)
  273. GPB_MESSAGE_SIGNATURE_ENTRY(int32_t, SFixed32)
  274. GPB_MESSAGE_SIGNATURE_ENTRY(float, Float)
  275. GPB_MESSAGE_SIGNATURE_ENTRY(uint64_t, Fixed64)
  276. GPB_MESSAGE_SIGNATURE_ENTRY(int64_t, SFixed64)
  277. GPB_MESSAGE_SIGNATURE_ENTRY(double, Double)
  278. GPB_MESSAGE_SIGNATURE_ENTRY(int32_t, Int32)
  279. GPB_MESSAGE_SIGNATURE_ENTRY(int64_t, Int64)
  280. GPB_MESSAGE_SIGNATURE_ENTRY(int32_t, SInt32)
  281. GPB_MESSAGE_SIGNATURE_ENTRY(int64_t, SInt64)
  282. GPB_MESSAGE_SIGNATURE_ENTRY(uint32_t, UInt32)
  283. GPB_MESSAGE_SIGNATURE_ENTRY(uint64_t, UInt64)
  284. GPB_MESSAGE_SIGNATURE_ENTRY(NSData *, Bytes)
  285. GPB_MESSAGE_SIGNATURE_ENTRY(NSString *, String)
  286. GPB_MESSAGE_SIGNATURE_ENTRY(GPBMessage *, Message)
  287. GPB_MESSAGE_SIGNATURE_ENTRY(GPBMessage *, Group)
  288. GPB_MESSAGE_SIGNATURE_ENTRY(int32_t, Enum)
  289. #undef GPB_MESSAGE_SIGNATURE_ENTRY
  290. - (id)getArray;
  291. - (NSUInteger)getArrayCount;
  292. - (void)setArray:(NSArray *)array;
  293. + (id)getClassValue;
  294. @end
  295. BOOL GPBClassHasSel(Class aClass, SEL sel);
  296. CF_EXTERN_C_END