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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 
31 #import <Foundation/Foundation.h>
32 
33 #import "GPBUtilities.h"
34 
35 #import "GPBDescriptor_PackagePrivate.h"
36 
37 // Macros for stringifying library symbols. These are used in the generated
38 // PB descriptor classes wherever a library symbol name is represented as a
39 // string. See README.google for more information.
40 #define GPBStringify(S) #S
41 #define GPBStringifySymbol(S) GPBStringify(S)
42 
43 #define GPBNSStringify(S) @#S
44 #define GPBNSStringifySymbol(S) GPBNSStringify(S)
45 
46 // Constant to internally mark when there is no has bit.
47 #define GPBNoHasBit INT32_MAX
48 
49 CF_EXTERN_C_BEGIN
50 
51 // These two are used to inject a runtime check for version mismatch into the
52 // generated sources to make sure they are linked with a supporting runtime.
53 void GPBCheckRuntimeVersionInternal(int32_t version);
GPBDebugCheckRuntimeVersion()54 GPB_INLINE void GPBDebugCheckRuntimeVersion() {
55 #if DEBUG
56   GPBCheckRuntimeVersionInternal(GOOGLE_PROTOBUF_OBJC_GEN_VERSION);
57 #endif
58 }
59 
60 // Conversion functions for de/serializing floating point types.
61 
GPBConvertDoubleToInt64(double v)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 
GPBConvertFloatToInt32(float v)68 GPB_INLINE int32_t GPBConvertFloatToInt32(float v) {
69   union { float f; int32_t i; } u;
70   u.f = v;
71   return u.i;
72 }
73 
GPBConvertInt64ToDouble(int64_t v)74 GPB_INLINE double GPBConvertInt64ToDouble(int64_t v) {
75   union { double f; int64_t i; } u;
76   u.i = v;
77   return u.f;
78 }
79 
GPBConvertInt32ToFloat(int32_t v)80 GPB_INLINE float GPBConvertInt32ToFloat(int32_t v) {
81   union { float f; int32_t i; } u;
82   u.i = v;
83   return u.f;
84 }
85 
GPBLogicalRightShift32(int32_t value,int32_t spaces)86 GPB_INLINE int32_t GPBLogicalRightShift32(int32_t value, int32_t spaces) {
87   return (int32_t)((uint32_t)(value) >> spaces);
88 }
89 
GPBLogicalRightShift64(int64_t value,int32_t spaces)90 GPB_INLINE int64_t GPBLogicalRightShift64(int64_t value, int32_t spaces) {
91   return (int64_t)((uint64_t)(value) >> spaces);
92 }
93 
94 // Decode a ZigZag-encoded 32-bit value.  ZigZag encodes signed integers
95 // into values that can be efficiently encoded with varint.  (Otherwise,
96 // negative values must be sign-extended to 64 bits to be varint encoded,
97 // thus always taking 10 bytes on the wire.)
GPBDecodeZigZag32(uint32_t n)98 GPB_INLINE int32_t GPBDecodeZigZag32(uint32_t n) {
99   return GPBLogicalRightShift32(n, 1) ^ -(n & 1);
100 }
101 
102 // Decode a ZigZag-encoded 64-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.)
GPBDecodeZigZag64(uint64_t n)106 GPB_INLINE int64_t GPBDecodeZigZag64(uint64_t n) {
107   return GPBLogicalRightShift64(n, 1) ^ -(n & 1);
108 }
109 
110 // Encode a ZigZag-encoded 32-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.)
GPBEncodeZigZag32(int32_t n)114 GPB_INLINE uint32_t GPBEncodeZigZag32(int32_t n) {
115   // Note:  the right-shift must be arithmetic
116   return (n << 1) ^ (n >> 31);
117 }
118 
119 // Encode a ZigZag-encoded 64-bit value.  ZigZag encodes signed integers
120 // into values that can be efficiently encoded with varint.  (Otherwise,
121 // negative values must be sign-extended to 64 bits to be varint encoded,
122 // thus always taking 10 bytes on the wire.)
GPBEncodeZigZag64(int64_t n)123 GPB_INLINE uint64_t GPBEncodeZigZag64(int64_t n) {
124   // Note:  the right-shift must be arithmetic
125   return (n << 1) ^ (n >> 63);
126 }
127 
GPBDataTypeIsObject(GPBDataType type)128 GPB_INLINE BOOL GPBDataTypeIsObject(GPBDataType type) {
129   switch (type) {
130     case GPBDataTypeBytes:
131     case GPBDataTypeString:
132     case GPBDataTypeMessage:
133     case GPBDataTypeGroup:
134       return YES;
135     default:
136       return NO;
137   }
138 }
139 
GPBDataTypeIsMessage(GPBDataType type)140 GPB_INLINE BOOL GPBDataTypeIsMessage(GPBDataType type) {
141   switch (type) {
142     case GPBDataTypeMessage:
143     case GPBDataTypeGroup:
144       return YES;
145     default:
146       return NO;
147   }
148 }
149 
GPBFieldDataTypeIsMessage(GPBFieldDescriptor * field)150 GPB_INLINE BOOL GPBFieldDataTypeIsMessage(GPBFieldDescriptor *field) {
151   return GPBDataTypeIsMessage(field->description_->dataType);
152 }
153 
GPBFieldDataTypeIsObject(GPBFieldDescriptor * field)154 GPB_INLINE BOOL GPBFieldDataTypeIsObject(GPBFieldDescriptor *field) {
155   return GPBDataTypeIsObject(field->description_->dataType);
156 }
157 
GPBExtensionIsMessage(GPBExtensionDescriptor * ext)158 GPB_INLINE BOOL GPBExtensionIsMessage(GPBExtensionDescriptor *ext) {
159   return GPBDataTypeIsMessage(ext->description_->dataType);
160 }
161 
162 // The field is an array/map or it has an object value.
GPBFieldStoresObject(GPBFieldDescriptor * field)163 GPB_INLINE BOOL GPBFieldStoresObject(GPBFieldDescriptor *field) {
164   GPBMessageFieldDescription *desc = field->description_;
165   if ((desc->flags & (GPBFieldRepeated | GPBFieldMapKeyMask)) != 0) {
166     return YES;
167   }
168   return GPBDataTypeIsObject(desc->dataType);
169 }
170 
171 BOOL GPBGetHasIvar(GPBMessage *self, int32_t index, uint32_t fieldNumber);
172 void GPBSetHasIvar(GPBMessage *self, int32_t idx, uint32_t fieldNumber,
173                    BOOL value);
174 uint32_t GPBGetHasOneof(GPBMessage *self, int32_t index);
175 
176 GPB_INLINE BOOL
GPBGetHasIvarField(GPBMessage * self,GPBFieldDescriptor * field)177 GPBGetHasIvarField(GPBMessage *self, GPBFieldDescriptor *field) {
178   GPBMessageFieldDescription *fieldDesc = field->description_;
179   return GPBGetHasIvar(self, fieldDesc->hasIndex, fieldDesc->number);
180 }
GPBSetHasIvarField(GPBMessage * self,GPBFieldDescriptor * field,BOOL value)181 GPB_INLINE void GPBSetHasIvarField(GPBMessage *self, GPBFieldDescriptor *field,
182                                    BOOL value) {
183   GPBMessageFieldDescription *fieldDesc = field->description_;
184   GPBSetHasIvar(self, fieldDesc->hasIndex, fieldDesc->number, value);
185 }
186 
187 void GPBMaybeClearOneof(GPBMessage *self, GPBOneofDescriptor *oneof,
188                         int32_t oneofHasIndex, uint32_t fieldNumberNotToClear);
189 
190 //%PDDM-DEFINE GPB_IVAR_SET_DECL(NAME, TYPE)
191 //%void GPBSet##NAME##IvarWithFieldInternal(GPBMessage *self,
192 //%            NAME$S                     GPBFieldDescriptor *field,
193 //%            NAME$S                     TYPE value,
194 //%            NAME$S                     GPBFileSyntax syntax);
195 //%PDDM-EXPAND GPB_IVAR_SET_DECL(Bool, BOOL)
196 // This block of code is generated, do not edit it directly.
197 
198 void GPBSetBoolIvarWithFieldInternal(GPBMessage *self,
199                                      GPBFieldDescriptor *field,
200                                      BOOL value,
201                                      GPBFileSyntax syntax);
202 //%PDDM-EXPAND GPB_IVAR_SET_DECL(Int32, int32_t)
203 // This block of code is generated, do not edit it directly.
204 
205 void GPBSetInt32IvarWithFieldInternal(GPBMessage *self,
206                                       GPBFieldDescriptor *field,
207                                       int32_t value,
208                                       GPBFileSyntax syntax);
209 //%PDDM-EXPAND GPB_IVAR_SET_DECL(UInt32, uint32_t)
210 // This block of code is generated, do not edit it directly.
211 
212 void GPBSetUInt32IvarWithFieldInternal(GPBMessage *self,
213                                        GPBFieldDescriptor *field,
214                                        uint32_t value,
215                                        GPBFileSyntax syntax);
216 //%PDDM-EXPAND GPB_IVAR_SET_DECL(Int64, int64_t)
217 // This block of code is generated, do not edit it directly.
218 
219 void GPBSetInt64IvarWithFieldInternal(GPBMessage *self,
220                                       GPBFieldDescriptor *field,
221                                       int64_t value,
222                                       GPBFileSyntax syntax);
223 //%PDDM-EXPAND GPB_IVAR_SET_DECL(UInt64, uint64_t)
224 // This block of code is generated, do not edit it directly.
225 
226 void GPBSetUInt64IvarWithFieldInternal(GPBMessage *self,
227                                        GPBFieldDescriptor *field,
228                                        uint64_t value,
229                                        GPBFileSyntax syntax);
230 //%PDDM-EXPAND GPB_IVAR_SET_DECL(Float, float)
231 // This block of code is generated, do not edit it directly.
232 
233 void GPBSetFloatIvarWithFieldInternal(GPBMessage *self,
234                                       GPBFieldDescriptor *field,
235                                       float value,
236                                       GPBFileSyntax syntax);
237 //%PDDM-EXPAND GPB_IVAR_SET_DECL(Double, double)
238 // This block of code is generated, do not edit it directly.
239 
240 void GPBSetDoubleIvarWithFieldInternal(GPBMessage *self,
241                                        GPBFieldDescriptor *field,
242                                        double value,
243                                        GPBFileSyntax syntax);
244 //%PDDM-EXPAND GPB_IVAR_SET_DECL(Enum, int32_t)
245 // This block of code is generated, do not edit it directly.
246 
247 void GPBSetEnumIvarWithFieldInternal(GPBMessage *self,
248                                      GPBFieldDescriptor *field,
249                                      int32_t value,
250                                      GPBFileSyntax syntax);
251 //%PDDM-EXPAND-END (8 expansions)
252 
253 int32_t GPBGetEnumIvarWithFieldInternal(GPBMessage *self,
254                                         GPBFieldDescriptor *field,
255                                         GPBFileSyntax syntax);
256 
257 id GPBGetObjectIvarWithField(GPBMessage *self, GPBFieldDescriptor *field);
258 
259 void GPBSetObjectIvarWithFieldInternal(GPBMessage *self,
260                                        GPBFieldDescriptor *field, id value,
261                                        GPBFileSyntax syntax);
262 void GPBSetRetainedObjectIvarWithFieldInternal(GPBMessage *self,
263                                                GPBFieldDescriptor *field,
264                                                id __attribute__((ns_consumed))
265                                                value,
266                                                GPBFileSyntax syntax);
267 
268 // GPBGetObjectIvarWithField will automatically create the field (message) if
269 // it doesn't exist. GPBGetObjectIvarWithFieldNoAutocreate will return nil.
270 id GPBGetObjectIvarWithFieldNoAutocreate(GPBMessage *self,
271                                          GPBFieldDescriptor *field);
272 
273 void GPBSetAutocreatedRetainedObjectIvarWithField(
274     GPBMessage *self, GPBFieldDescriptor *field,
275     id __attribute__((ns_consumed)) value);
276 
277 // Clears and releases the autocreated message ivar, if it's autocreated. If
278 // it's not set as autocreated, this method does nothing.
279 void GPBClearAutocreatedMessageIvarWithField(GPBMessage *self,
280                                              GPBFieldDescriptor *field);
281 
282 // Returns an Objective C encoding for |selector|. |instanceSel| should be
283 // YES if it's an instance selector (as opposed to a class selector).
284 // |selector| must be a selector from MessageSignatureProtocol.
285 const char *GPBMessageEncodingForSelector(SEL selector, BOOL instanceSel);
286 
287 // Helper for text format name encoding.
288 // decodeData is the data describing the sepecial decodes.
289 // key and inputString are the input that needs decoding.
290 NSString *GPBDecodeTextFormatName(const uint8_t *decodeData, int32_t key,
291                                   NSString *inputString);
292 
293 // A series of selectors that are used solely to get @encoding values
294 // for them by the dynamic protobuf runtime code. See
295 // GPBMessageEncodingForSelector for details.
296 @protocol GPBMessageSignatureProtocol
297 @optional
298 
299 #define GPB_MESSAGE_SIGNATURE_ENTRY(TYPE, NAME) \
300   -(TYPE)get##NAME;                             \
301   -(void)set##NAME : (TYPE)value;               \
302   -(TYPE)get##NAME##AtIndex : (NSUInteger)index;
303 
304 GPB_MESSAGE_SIGNATURE_ENTRY(BOOL, Bool)
305 GPB_MESSAGE_SIGNATURE_ENTRY(uint32_t, Fixed32)
306 GPB_MESSAGE_SIGNATURE_ENTRY(int32_t, SFixed32)
307 GPB_MESSAGE_SIGNATURE_ENTRY(float, Float)
308 GPB_MESSAGE_SIGNATURE_ENTRY(uint64_t, Fixed64)
309 GPB_MESSAGE_SIGNATURE_ENTRY(int64_t, SFixed64)
310 GPB_MESSAGE_SIGNATURE_ENTRY(double, Double)
311 GPB_MESSAGE_SIGNATURE_ENTRY(int32_t, Int32)
312 GPB_MESSAGE_SIGNATURE_ENTRY(int64_t, Int64)
313 GPB_MESSAGE_SIGNATURE_ENTRY(int32_t, SInt32)
314 GPB_MESSAGE_SIGNATURE_ENTRY(int64_t, SInt64)
315 GPB_MESSAGE_SIGNATURE_ENTRY(uint32_t, UInt32)
316 GPB_MESSAGE_SIGNATURE_ENTRY(uint64_t, UInt64)
317 GPB_MESSAGE_SIGNATURE_ENTRY(NSData *, Bytes)
318 GPB_MESSAGE_SIGNATURE_ENTRY(NSString *, String)
319 GPB_MESSAGE_SIGNATURE_ENTRY(GPBMessage *, Message)
320 GPB_MESSAGE_SIGNATURE_ENTRY(GPBMessage *, Group)
321 GPB_MESSAGE_SIGNATURE_ENTRY(int32_t, Enum)
322 
323 #undef GPB_MESSAGE_SIGNATURE_ENTRY
324 
325 - (id)getArray;
326 - (NSUInteger)getArrayCount;
327 - (void)setArray:(NSArray *)array;
328 + (id)getClassValue;
329 @end
330 
331 CF_EXTERN_C_END
332