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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 "GPBCodedOutputStream_PackagePrivate.h"
32
33#import <mach/vm_param.h>
34
35#import "GPBArray.h"
36#import "GPBUnknownFieldSet_PackagePrivate.h"
37#import "GPBUtilities_PackagePrivate.h"
38
39// These values are the existing values so as not to break any code that might
40// have already been inspecting them when they weren't documented/exposed.
41NSString *const GPBCodedOutputStreamException_OutOfSpace = @"OutOfSpace";
42NSString *const GPBCodedOutputStreamException_WriteFailed = @"WriteFailed";
43
44// Structure for containing state of a GPBCodedInputStream. Brought out into
45// a struct so that we can inline several common functions instead of dealing
46// with overhead of ObjC dispatch.
47typedef struct GPBOutputBufferState {
48  uint8_t *bytes;
49  size_t size;
50  size_t position;
51  NSOutputStream *output;
52} GPBOutputBufferState;
53
54@implementation GPBCodedOutputStream {
55  GPBOutputBufferState state_;
56  NSMutableData *buffer_;
57}
58
59static const int32_t LITTLE_ENDIAN_32_SIZE = sizeof(uint32_t);
60static const int32_t LITTLE_ENDIAN_64_SIZE = sizeof(uint64_t);
61
62// Internal helper that writes the current buffer to the output. The
63// buffer position is reset to its initial value when this returns.
64static void GPBRefreshBuffer(GPBOutputBufferState *state) {
65  if (state->output == nil) {
66    // We're writing to a single buffer.
67    [NSException raise:GPBCodedOutputStreamException_OutOfSpace format:@""];
68  }
69  if (state->position != 0) {
70    NSInteger written =
71        [state->output write:state->bytes maxLength:state->position];
72    if (written != (NSInteger)state->position) {
73      [NSException raise:GPBCodedOutputStreamException_WriteFailed format:@""];
74    }
75    state->position = 0;
76  }
77}
78
79static void GPBWriteRawByte(GPBOutputBufferState *state, uint8_t value) {
80  if (state->position == state->size) {
81    GPBRefreshBuffer(state);
82  }
83  state->bytes[state->position++] = value;
84}
85
86static void GPBWriteRawVarint32(GPBOutputBufferState *state, int32_t value) {
87  while (YES) {
88    if ((value & ~0x7F) == 0) {
89      uint8_t val = (uint8_t)value;
90      GPBWriteRawByte(state, val);
91      return;
92    } else {
93      GPBWriteRawByte(state, (value & 0x7F) | 0x80);
94      value = GPBLogicalRightShift32(value, 7);
95    }
96  }
97}
98
99static void GPBWriteRawVarint64(GPBOutputBufferState *state, int64_t value) {
100  while (YES) {
101    if ((value & ~0x7FL) == 0) {
102      uint8_t val = (uint8_t)value;
103      GPBWriteRawByte(state, val);
104      return;
105    } else {
106      GPBWriteRawByte(state, ((int32_t)value & 0x7F) | 0x80);
107      value = GPBLogicalRightShift64(value, 7);
108    }
109  }
110}
111
112static void GPBWriteInt32NoTag(GPBOutputBufferState *state, int32_t value) {
113  if (value >= 0) {
114    GPBWriteRawVarint32(state, value);
115  } else {
116    // Must sign-extend
117    GPBWriteRawVarint64(state, value);
118  }
119}
120
121static void GPBWriteUInt32(GPBOutputBufferState *state, int32_t fieldNumber,
122                           uint32_t value) {
123  GPBWriteTagWithFormat(state, fieldNumber, GPBWireFormatVarint);
124  GPBWriteRawVarint32(state, value);
125}
126
127static void GPBWriteTagWithFormat(GPBOutputBufferState *state,
128                                  uint32_t fieldNumber, GPBWireFormat format) {
129  GPBWriteRawVarint32(state, GPBWireFormatMakeTag(fieldNumber, format));
130}
131
132static void GPBWriteRawLittleEndian32(GPBOutputBufferState *state,
133                                      int32_t value) {
134  GPBWriteRawByte(state, (value)&0xFF);
135  GPBWriteRawByte(state, (value >> 8) & 0xFF);
136  GPBWriteRawByte(state, (value >> 16) & 0xFF);
137  GPBWriteRawByte(state, (value >> 24) & 0xFF);
138}
139
140static void GPBWriteRawLittleEndian64(GPBOutputBufferState *state,
141                                      int64_t value) {
142  GPBWriteRawByte(state, (int32_t)(value)&0xFF);
143  GPBWriteRawByte(state, (int32_t)(value >> 8) & 0xFF);
144  GPBWriteRawByte(state, (int32_t)(value >> 16) & 0xFF);
145  GPBWriteRawByte(state, (int32_t)(value >> 24) & 0xFF);
146  GPBWriteRawByte(state, (int32_t)(value >> 32) & 0xFF);
147  GPBWriteRawByte(state, (int32_t)(value >> 40) & 0xFF);
148  GPBWriteRawByte(state, (int32_t)(value >> 48) & 0xFF);
149  GPBWriteRawByte(state, (int32_t)(value >> 56) & 0xFF);
150}
151
152- (void)dealloc {
153  [self flush];
154  [state_.output close];
155  [state_.output release];
156  [buffer_ release];
157
158  [super dealloc];
159}
160
161- (instancetype)initWithOutputStream:(NSOutputStream *)output {
162  NSMutableData *data = [NSMutableData dataWithLength:PAGE_SIZE];
163  return [self initWithOutputStream:output data:data];
164}
165
166- (instancetype)initWithData:(NSMutableData *)data {
167  return [self initWithOutputStream:nil data:data];
168}
169
170// This initializer isn't exposed, but it is the designated initializer.
171// Setting OutputStream and NSData is to control the buffering behavior/size
172// of the work, but that is more obvious via the bufferSize: version.
173- (instancetype)initWithOutputStream:(NSOutputStream *)output
174                                data:(NSMutableData *)data {
175  if ((self = [super init])) {
176    buffer_ = [data retain];
177    state_.bytes = [data mutableBytes];
178    state_.size = [data length];
179    state_.output = [output retain];
180    [state_.output open];
181  }
182  return self;
183}
184
185+ (instancetype)streamWithOutputStream:(NSOutputStream *)output {
186  NSMutableData *data = [NSMutableData dataWithLength:PAGE_SIZE];
187  return [[[self alloc] initWithOutputStream:output
188                                        data:data] autorelease];
189}
190
191+ (instancetype)streamWithData:(NSMutableData *)data {
192  return [[[self alloc] initWithData:data] autorelease];
193}
194
195// Direct access is use for speed, to avoid even internally declaring things
196// read/write, etc. The warning is enabled in the project to ensure code calling
197// protos can turn on -Wdirect-ivar-access without issues.
198#pragma clang diagnostic push
199#pragma clang diagnostic ignored "-Wdirect-ivar-access"
200
201- (void)writeDoubleNoTag:(double)value {
202  GPBWriteRawLittleEndian64(&state_, GPBConvertDoubleToInt64(value));
203}
204
205- (void)writeDouble:(int32_t)fieldNumber value:(double)value {
206  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatFixed64);
207  GPBWriteRawLittleEndian64(&state_, GPBConvertDoubleToInt64(value));
208}
209
210- (void)writeFloatNoTag:(float)value {
211  GPBWriteRawLittleEndian32(&state_, GPBConvertFloatToInt32(value));
212}
213
214- (void)writeFloat:(int32_t)fieldNumber value:(float)value {
215  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatFixed32);
216  GPBWriteRawLittleEndian32(&state_, GPBConvertFloatToInt32(value));
217}
218
219- (void)writeUInt64NoTag:(uint64_t)value {
220  GPBWriteRawVarint64(&state_, value);
221}
222
223- (void)writeUInt64:(int32_t)fieldNumber value:(uint64_t)value {
224  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatVarint);
225  GPBWriteRawVarint64(&state_, value);
226}
227
228- (void)writeInt64NoTag:(int64_t)value {
229  GPBWriteRawVarint64(&state_, value);
230}
231
232- (void)writeInt64:(int32_t)fieldNumber value:(int64_t)value {
233  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatVarint);
234  GPBWriteRawVarint64(&state_, value);
235}
236
237- (void)writeInt32NoTag:(int32_t)value {
238  GPBWriteInt32NoTag(&state_, value);
239}
240
241- (void)writeInt32:(int32_t)fieldNumber value:(int32_t)value {
242  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatVarint);
243  GPBWriteInt32NoTag(&state_, value);
244}
245
246- (void)writeFixed64NoTag:(uint64_t)value {
247  GPBWriteRawLittleEndian64(&state_, value);
248}
249
250- (void)writeFixed64:(int32_t)fieldNumber value:(uint64_t)value {
251  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatFixed64);
252  GPBWriteRawLittleEndian64(&state_, value);
253}
254
255- (void)writeFixed32NoTag:(uint32_t)value {
256  GPBWriteRawLittleEndian32(&state_, value);
257}
258
259- (void)writeFixed32:(int32_t)fieldNumber value:(uint32_t)value {
260  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatFixed32);
261  GPBWriteRawLittleEndian32(&state_, value);
262}
263
264- (void)writeBoolNoTag:(BOOL)value {
265  GPBWriteRawByte(&state_, (value ? 1 : 0));
266}
267
268- (void)writeBool:(int32_t)fieldNumber value:(BOOL)value {
269  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatVarint);
270  GPBWriteRawByte(&state_, (value ? 1 : 0));
271}
272
273- (void)writeStringNoTag:(const NSString *)value {
274  size_t length = [value lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
275  GPBWriteRawVarint32(&state_, (int32_t)length);
276  if (length == 0) {
277    return;
278  }
279
280  const char *quickString =
281      CFStringGetCStringPtr((CFStringRef)value, kCFStringEncodingUTF8);
282
283  // Fast path: Most strings are short, if the buffer already has space,
284  // add to it directly.
285  NSUInteger bufferBytesLeft = state_.size - state_.position;
286  if (bufferBytesLeft >= length) {
287    NSUInteger usedBufferLength = 0;
288    BOOL result;
289    if (quickString != NULL) {
290      memcpy(state_.bytes + state_.position, quickString, length);
291      usedBufferLength = length;
292      result = YES;
293    } else {
294      result = [value getBytes:state_.bytes + state_.position
295                     maxLength:bufferBytesLeft
296                    usedLength:&usedBufferLength
297                      encoding:NSUTF8StringEncoding
298                       options:(NSStringEncodingConversionOptions)0
299                         range:NSMakeRange(0, [value length])
300                remainingRange:NULL];
301    }
302    if (result) {
303      NSAssert2((usedBufferLength == length),
304                @"Our UTF8 calc was wrong? %tu vs %zd", usedBufferLength,
305                length);
306      state_.position += usedBufferLength;
307      return;
308    }
309  } else if (quickString != NULL) {
310    [self writeRawPtr:quickString offset:0 length:length];
311  } else {
312    // Slow path: just get it as data and write it out.
313    NSData *utf8Data = [value dataUsingEncoding:NSUTF8StringEncoding];
314    NSAssert2(([utf8Data length] == length),
315              @"Strings UTF8 length was wrong? %tu vs %zd", [utf8Data length],
316              length);
317    [self writeRawData:utf8Data];
318  }
319}
320
321- (void)writeString:(int32_t)fieldNumber value:(NSString *)value {
322  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatLengthDelimited);
323  [self writeStringNoTag:value];
324}
325
326- (void)writeGroupNoTag:(int32_t)fieldNumber value:(GPBMessage *)value {
327  [value writeToCodedOutputStream:self];
328  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatEndGroup);
329}
330
331- (void)writeGroup:(int32_t)fieldNumber value:(GPBMessage *)value {
332  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatStartGroup);
333  [self writeGroupNoTag:fieldNumber value:value];
334}
335
336- (void)writeUnknownGroupNoTag:(int32_t)fieldNumber
337                         value:(const GPBUnknownFieldSet *)value {
338  [value writeToCodedOutputStream:self];
339  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatEndGroup);
340}
341
342- (void)writeUnknownGroup:(int32_t)fieldNumber
343                    value:(GPBUnknownFieldSet *)value {
344  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatStartGroup);
345  [self writeUnknownGroupNoTag:fieldNumber value:value];
346}
347
348- (void)writeMessageNoTag:(GPBMessage *)value {
349  GPBWriteRawVarint32(&state_, (int32_t)[value serializedSize]);
350  [value writeToCodedOutputStream:self];
351}
352
353- (void)writeMessage:(int32_t)fieldNumber value:(GPBMessage *)value {
354  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatLengthDelimited);
355  [self writeMessageNoTag:value];
356}
357
358- (void)writeBytesNoTag:(NSData *)value {
359  GPBWriteRawVarint32(&state_, (int32_t)[value length]);
360  [self writeRawData:value];
361}
362
363- (void)writeBytes:(int32_t)fieldNumber value:(NSData *)value {
364  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatLengthDelimited);
365  [self writeBytesNoTag:value];
366}
367
368- (void)writeUInt32NoTag:(uint32_t)value {
369  GPBWriteRawVarint32(&state_, value);
370}
371
372- (void)writeUInt32:(int32_t)fieldNumber value:(uint32_t)value {
373  GPBWriteUInt32(&state_, fieldNumber, value);
374}
375
376- (void)writeEnumNoTag:(int32_t)value {
377  GPBWriteInt32NoTag(&state_, value);
378}
379
380- (void)writeEnum:(int32_t)fieldNumber value:(int32_t)value {
381  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatVarint);
382  GPBWriteInt32NoTag(&state_, value);
383}
384
385- (void)writeSFixed32NoTag:(int32_t)value {
386  GPBWriteRawLittleEndian32(&state_, value);
387}
388
389- (void)writeSFixed32:(int32_t)fieldNumber value:(int32_t)value {
390  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatFixed32);
391  GPBWriteRawLittleEndian32(&state_, value);
392}
393
394- (void)writeSFixed64NoTag:(int64_t)value {
395  GPBWriteRawLittleEndian64(&state_, value);
396}
397
398- (void)writeSFixed64:(int32_t)fieldNumber value:(int64_t)value {
399  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatFixed64);
400  GPBWriteRawLittleEndian64(&state_, value);
401}
402
403- (void)writeSInt32NoTag:(int32_t)value {
404  GPBWriteRawVarint32(&state_, GPBEncodeZigZag32(value));
405}
406
407- (void)writeSInt32:(int32_t)fieldNumber value:(int32_t)value {
408  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatVarint);
409  GPBWriteRawVarint32(&state_, GPBEncodeZigZag32(value));
410}
411
412- (void)writeSInt64NoTag:(int64_t)value {
413  GPBWriteRawVarint64(&state_, GPBEncodeZigZag64(value));
414}
415
416- (void)writeSInt64:(int32_t)fieldNumber value:(int64_t)value {
417  GPBWriteTagWithFormat(&state_, fieldNumber, GPBWireFormatVarint);
418  GPBWriteRawVarint64(&state_, GPBEncodeZigZag64(value));
419}
420
421//%PDDM-DEFINE WRITE_PACKABLE_DEFNS(NAME, ARRAY_TYPE, TYPE, ACCESSOR_NAME)
422//%- (void)write##NAME##Array:(int32_t)fieldNumber
423//%       NAME$S     values:(GPB##ARRAY_TYPE##Array *)values
424//%       NAME$S        tag:(uint32_t)tag {
425//%  if (tag != 0) {
426//%    if (values.count == 0) return;
427//%    __block size_t dataSize = 0;
428//%    [values enumerate##ACCESSOR_NAME##ValuesWithBlock:^(TYPE value, NSUInteger idx, BOOL *stop) {
429//%#pragma unused(idx, stop)
430//%      dataSize += GPBCompute##NAME##SizeNoTag(value);
431//%    }];
432//%    GPBWriteRawVarint32(&state_, tag);
433//%    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
434//%    [values enumerate##ACCESSOR_NAME##ValuesWithBlock:^(TYPE value, NSUInteger idx, BOOL *stop) {
435//%#pragma unused(idx, stop)
436//%      [self write##NAME##NoTag:value];
437//%    }];
438//%  } else {
439//%    [values enumerate##ACCESSOR_NAME##ValuesWithBlock:^(TYPE value, NSUInteger idx, BOOL *stop) {
440//%#pragma unused(idx, stop)
441//%      [self write##NAME:fieldNumber value:value];
442//%    }];
443//%  }
444//%}
445//%
446//%PDDM-DEFINE WRITE_UNPACKABLE_DEFNS(NAME, TYPE)
447//%- (void)write##NAME##Array:(int32_t)fieldNumber values:(NSArray *)values {
448//%  for (TYPE *value in values) {
449//%    [self write##NAME:fieldNumber value:value];
450//%  }
451//%}
452//%
453//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(Double, Double, double, )
454// This block of code is generated, do not edit it directly.
455// clang-format off
456
457- (void)writeDoubleArray:(int32_t)fieldNumber
458                  values:(GPBDoubleArray *)values
459                     tag:(uint32_t)tag {
460  if (tag != 0) {
461    if (values.count == 0) return;
462    __block size_t dataSize = 0;
463    [values enumerateValuesWithBlock:^(double value, NSUInteger idx, BOOL *stop) {
464#pragma unused(idx, stop)
465      dataSize += GPBComputeDoubleSizeNoTag(value);
466    }];
467    GPBWriteRawVarint32(&state_, tag);
468    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
469    [values enumerateValuesWithBlock:^(double value, NSUInteger idx, BOOL *stop) {
470#pragma unused(idx, stop)
471      [self writeDoubleNoTag:value];
472    }];
473  } else {
474    [values enumerateValuesWithBlock:^(double value, NSUInteger idx, BOOL *stop) {
475#pragma unused(idx, stop)
476      [self writeDouble:fieldNumber value:value];
477    }];
478  }
479}
480
481// clang-format on
482//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(Float, Float, float, )
483// This block of code is generated, do not edit it directly.
484// clang-format off
485
486- (void)writeFloatArray:(int32_t)fieldNumber
487                 values:(GPBFloatArray *)values
488                    tag:(uint32_t)tag {
489  if (tag != 0) {
490    if (values.count == 0) return;
491    __block size_t dataSize = 0;
492    [values enumerateValuesWithBlock:^(float value, NSUInteger idx, BOOL *stop) {
493#pragma unused(idx, stop)
494      dataSize += GPBComputeFloatSizeNoTag(value);
495    }];
496    GPBWriteRawVarint32(&state_, tag);
497    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
498    [values enumerateValuesWithBlock:^(float value, NSUInteger idx, BOOL *stop) {
499#pragma unused(idx, stop)
500      [self writeFloatNoTag:value];
501    }];
502  } else {
503    [values enumerateValuesWithBlock:^(float value, NSUInteger idx, BOOL *stop) {
504#pragma unused(idx, stop)
505      [self writeFloat:fieldNumber value:value];
506    }];
507  }
508}
509
510// clang-format on
511//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(UInt64, UInt64, uint64_t, )
512// This block of code is generated, do not edit it directly.
513// clang-format off
514
515- (void)writeUInt64Array:(int32_t)fieldNumber
516                  values:(GPBUInt64Array *)values
517                     tag:(uint32_t)tag {
518  if (tag != 0) {
519    if (values.count == 0) return;
520    __block size_t dataSize = 0;
521    [values enumerateValuesWithBlock:^(uint64_t value, NSUInteger idx, BOOL *stop) {
522#pragma unused(idx, stop)
523      dataSize += GPBComputeUInt64SizeNoTag(value);
524    }];
525    GPBWriteRawVarint32(&state_, tag);
526    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
527    [values enumerateValuesWithBlock:^(uint64_t value, NSUInteger idx, BOOL *stop) {
528#pragma unused(idx, stop)
529      [self writeUInt64NoTag:value];
530    }];
531  } else {
532    [values enumerateValuesWithBlock:^(uint64_t value, NSUInteger idx, BOOL *stop) {
533#pragma unused(idx, stop)
534      [self writeUInt64:fieldNumber value:value];
535    }];
536  }
537}
538
539// clang-format on
540//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(Int64, Int64, int64_t, )
541// This block of code is generated, do not edit it directly.
542// clang-format off
543
544- (void)writeInt64Array:(int32_t)fieldNumber
545                 values:(GPBInt64Array *)values
546                    tag:(uint32_t)tag {
547  if (tag != 0) {
548    if (values.count == 0) return;
549    __block size_t dataSize = 0;
550    [values enumerateValuesWithBlock:^(int64_t value, NSUInteger idx, BOOL *stop) {
551#pragma unused(idx, stop)
552      dataSize += GPBComputeInt64SizeNoTag(value);
553    }];
554    GPBWriteRawVarint32(&state_, tag);
555    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
556    [values enumerateValuesWithBlock:^(int64_t value, NSUInteger idx, BOOL *stop) {
557#pragma unused(idx, stop)
558      [self writeInt64NoTag:value];
559    }];
560  } else {
561    [values enumerateValuesWithBlock:^(int64_t value, NSUInteger idx, BOOL *stop) {
562#pragma unused(idx, stop)
563      [self writeInt64:fieldNumber value:value];
564    }];
565  }
566}
567
568// clang-format on
569//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(Int32, Int32, int32_t, )
570// This block of code is generated, do not edit it directly.
571// clang-format off
572
573- (void)writeInt32Array:(int32_t)fieldNumber
574                 values:(GPBInt32Array *)values
575                    tag:(uint32_t)tag {
576  if (tag != 0) {
577    if (values.count == 0) return;
578    __block size_t dataSize = 0;
579    [values enumerateValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
580#pragma unused(idx, stop)
581      dataSize += GPBComputeInt32SizeNoTag(value);
582    }];
583    GPBWriteRawVarint32(&state_, tag);
584    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
585    [values enumerateValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
586#pragma unused(idx, stop)
587      [self writeInt32NoTag:value];
588    }];
589  } else {
590    [values enumerateValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
591#pragma unused(idx, stop)
592      [self writeInt32:fieldNumber value:value];
593    }];
594  }
595}
596
597// clang-format on
598//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(UInt32, UInt32, uint32_t, )
599// This block of code is generated, do not edit it directly.
600// clang-format off
601
602- (void)writeUInt32Array:(int32_t)fieldNumber
603                  values:(GPBUInt32Array *)values
604                     tag:(uint32_t)tag {
605  if (tag != 0) {
606    if (values.count == 0) return;
607    __block size_t dataSize = 0;
608    [values enumerateValuesWithBlock:^(uint32_t value, NSUInteger idx, BOOL *stop) {
609#pragma unused(idx, stop)
610      dataSize += GPBComputeUInt32SizeNoTag(value);
611    }];
612    GPBWriteRawVarint32(&state_, tag);
613    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
614    [values enumerateValuesWithBlock:^(uint32_t value, NSUInteger idx, BOOL *stop) {
615#pragma unused(idx, stop)
616      [self writeUInt32NoTag:value];
617    }];
618  } else {
619    [values enumerateValuesWithBlock:^(uint32_t value, NSUInteger idx, BOOL *stop) {
620#pragma unused(idx, stop)
621      [self writeUInt32:fieldNumber value:value];
622    }];
623  }
624}
625
626// clang-format on
627//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(Fixed64, UInt64, uint64_t, )
628// This block of code is generated, do not edit it directly.
629// clang-format off
630
631- (void)writeFixed64Array:(int32_t)fieldNumber
632                   values:(GPBUInt64Array *)values
633                      tag:(uint32_t)tag {
634  if (tag != 0) {
635    if (values.count == 0) return;
636    __block size_t dataSize = 0;
637    [values enumerateValuesWithBlock:^(uint64_t value, NSUInteger idx, BOOL *stop) {
638#pragma unused(idx, stop)
639      dataSize += GPBComputeFixed64SizeNoTag(value);
640    }];
641    GPBWriteRawVarint32(&state_, tag);
642    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
643    [values enumerateValuesWithBlock:^(uint64_t value, NSUInteger idx, BOOL *stop) {
644#pragma unused(idx, stop)
645      [self writeFixed64NoTag:value];
646    }];
647  } else {
648    [values enumerateValuesWithBlock:^(uint64_t value, NSUInteger idx, BOOL *stop) {
649#pragma unused(idx, stop)
650      [self writeFixed64:fieldNumber value:value];
651    }];
652  }
653}
654
655// clang-format on
656//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(Fixed32, UInt32, uint32_t, )
657// This block of code is generated, do not edit it directly.
658// clang-format off
659
660- (void)writeFixed32Array:(int32_t)fieldNumber
661                   values:(GPBUInt32Array *)values
662                      tag:(uint32_t)tag {
663  if (tag != 0) {
664    if (values.count == 0) return;
665    __block size_t dataSize = 0;
666    [values enumerateValuesWithBlock:^(uint32_t value, NSUInteger idx, BOOL *stop) {
667#pragma unused(idx, stop)
668      dataSize += GPBComputeFixed32SizeNoTag(value);
669    }];
670    GPBWriteRawVarint32(&state_, tag);
671    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
672    [values enumerateValuesWithBlock:^(uint32_t value, NSUInteger idx, BOOL *stop) {
673#pragma unused(idx, stop)
674      [self writeFixed32NoTag:value];
675    }];
676  } else {
677    [values enumerateValuesWithBlock:^(uint32_t value, NSUInteger idx, BOOL *stop) {
678#pragma unused(idx, stop)
679      [self writeFixed32:fieldNumber value:value];
680    }];
681  }
682}
683
684// clang-format on
685//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(SInt32, Int32, int32_t, )
686// This block of code is generated, do not edit it directly.
687// clang-format off
688
689- (void)writeSInt32Array:(int32_t)fieldNumber
690                  values:(GPBInt32Array *)values
691                     tag:(uint32_t)tag {
692  if (tag != 0) {
693    if (values.count == 0) return;
694    __block size_t dataSize = 0;
695    [values enumerateValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
696#pragma unused(idx, stop)
697      dataSize += GPBComputeSInt32SizeNoTag(value);
698    }];
699    GPBWriteRawVarint32(&state_, tag);
700    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
701    [values enumerateValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
702#pragma unused(idx, stop)
703      [self writeSInt32NoTag:value];
704    }];
705  } else {
706    [values enumerateValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
707#pragma unused(idx, stop)
708      [self writeSInt32:fieldNumber value:value];
709    }];
710  }
711}
712
713// clang-format on
714//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(SInt64, Int64, int64_t, )
715// This block of code is generated, do not edit it directly.
716// clang-format off
717
718- (void)writeSInt64Array:(int32_t)fieldNumber
719                  values:(GPBInt64Array *)values
720                     tag:(uint32_t)tag {
721  if (tag != 0) {
722    if (values.count == 0) return;
723    __block size_t dataSize = 0;
724    [values enumerateValuesWithBlock:^(int64_t value, NSUInteger idx, BOOL *stop) {
725#pragma unused(idx, stop)
726      dataSize += GPBComputeSInt64SizeNoTag(value);
727    }];
728    GPBWriteRawVarint32(&state_, tag);
729    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
730    [values enumerateValuesWithBlock:^(int64_t value, NSUInteger idx, BOOL *stop) {
731#pragma unused(idx, stop)
732      [self writeSInt64NoTag:value];
733    }];
734  } else {
735    [values enumerateValuesWithBlock:^(int64_t value, NSUInteger idx, BOOL *stop) {
736#pragma unused(idx, stop)
737      [self writeSInt64:fieldNumber value:value];
738    }];
739  }
740}
741
742// clang-format on
743//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(SFixed64, Int64, int64_t, )
744// This block of code is generated, do not edit it directly.
745// clang-format off
746
747- (void)writeSFixed64Array:(int32_t)fieldNumber
748                    values:(GPBInt64Array *)values
749                       tag:(uint32_t)tag {
750  if (tag != 0) {
751    if (values.count == 0) return;
752    __block size_t dataSize = 0;
753    [values enumerateValuesWithBlock:^(int64_t value, NSUInteger idx, BOOL *stop) {
754#pragma unused(idx, stop)
755      dataSize += GPBComputeSFixed64SizeNoTag(value);
756    }];
757    GPBWriteRawVarint32(&state_, tag);
758    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
759    [values enumerateValuesWithBlock:^(int64_t value, NSUInteger idx, BOOL *stop) {
760#pragma unused(idx, stop)
761      [self writeSFixed64NoTag:value];
762    }];
763  } else {
764    [values enumerateValuesWithBlock:^(int64_t value, NSUInteger idx, BOOL *stop) {
765#pragma unused(idx, stop)
766      [self writeSFixed64:fieldNumber value:value];
767    }];
768  }
769}
770
771// clang-format on
772//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(SFixed32, Int32, int32_t, )
773// This block of code is generated, do not edit it directly.
774// clang-format off
775
776- (void)writeSFixed32Array:(int32_t)fieldNumber
777                    values:(GPBInt32Array *)values
778                       tag:(uint32_t)tag {
779  if (tag != 0) {
780    if (values.count == 0) return;
781    __block size_t dataSize = 0;
782    [values enumerateValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
783#pragma unused(idx, stop)
784      dataSize += GPBComputeSFixed32SizeNoTag(value);
785    }];
786    GPBWriteRawVarint32(&state_, tag);
787    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
788    [values enumerateValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
789#pragma unused(idx, stop)
790      [self writeSFixed32NoTag:value];
791    }];
792  } else {
793    [values enumerateValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
794#pragma unused(idx, stop)
795      [self writeSFixed32:fieldNumber value:value];
796    }];
797  }
798}
799
800// clang-format on
801//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(Bool, Bool, BOOL, )
802// This block of code is generated, do not edit it directly.
803// clang-format off
804
805- (void)writeBoolArray:(int32_t)fieldNumber
806                values:(GPBBoolArray *)values
807                   tag:(uint32_t)tag {
808  if (tag != 0) {
809    if (values.count == 0) return;
810    __block size_t dataSize = 0;
811    [values enumerateValuesWithBlock:^(BOOL value, NSUInteger idx, BOOL *stop) {
812#pragma unused(idx, stop)
813      dataSize += GPBComputeBoolSizeNoTag(value);
814    }];
815    GPBWriteRawVarint32(&state_, tag);
816    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
817    [values enumerateValuesWithBlock:^(BOOL value, NSUInteger idx, BOOL *stop) {
818#pragma unused(idx, stop)
819      [self writeBoolNoTag:value];
820    }];
821  } else {
822    [values enumerateValuesWithBlock:^(BOOL value, NSUInteger idx, BOOL *stop) {
823#pragma unused(idx, stop)
824      [self writeBool:fieldNumber value:value];
825    }];
826  }
827}
828
829// clang-format on
830//%PDDM-EXPAND WRITE_PACKABLE_DEFNS(Enum, Enum, int32_t, Raw)
831// This block of code is generated, do not edit it directly.
832// clang-format off
833
834- (void)writeEnumArray:(int32_t)fieldNumber
835                values:(GPBEnumArray *)values
836                   tag:(uint32_t)tag {
837  if (tag != 0) {
838    if (values.count == 0) return;
839    __block size_t dataSize = 0;
840    [values enumerateRawValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
841#pragma unused(idx, stop)
842      dataSize += GPBComputeEnumSizeNoTag(value);
843    }];
844    GPBWriteRawVarint32(&state_, tag);
845    GPBWriteRawVarint32(&state_, (int32_t)dataSize);
846    [values enumerateRawValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
847#pragma unused(idx, stop)
848      [self writeEnumNoTag:value];
849    }];
850  } else {
851    [values enumerateRawValuesWithBlock:^(int32_t value, NSUInteger idx, BOOL *stop) {
852#pragma unused(idx, stop)
853      [self writeEnum:fieldNumber value:value];
854    }];
855  }
856}
857
858// clang-format on
859//%PDDM-EXPAND WRITE_UNPACKABLE_DEFNS(String, NSString)
860// This block of code is generated, do not edit it directly.
861// clang-format off
862
863- (void)writeStringArray:(int32_t)fieldNumber values:(NSArray *)values {
864  for (NSString *value in values) {
865    [self writeString:fieldNumber value:value];
866  }
867}
868
869// clang-format on
870//%PDDM-EXPAND WRITE_UNPACKABLE_DEFNS(Message, GPBMessage)
871// This block of code is generated, do not edit it directly.
872// clang-format off
873
874- (void)writeMessageArray:(int32_t)fieldNumber values:(NSArray *)values {
875  for (GPBMessage *value in values) {
876    [self writeMessage:fieldNumber value:value];
877  }
878}
879
880// clang-format on
881//%PDDM-EXPAND WRITE_UNPACKABLE_DEFNS(Bytes, NSData)
882// This block of code is generated, do not edit it directly.
883// clang-format off
884
885- (void)writeBytesArray:(int32_t)fieldNumber values:(NSArray *)values {
886  for (NSData *value in values) {
887    [self writeBytes:fieldNumber value:value];
888  }
889}
890
891// clang-format on
892//%PDDM-EXPAND WRITE_UNPACKABLE_DEFNS(Group, GPBMessage)
893// This block of code is generated, do not edit it directly.
894// clang-format off
895
896- (void)writeGroupArray:(int32_t)fieldNumber values:(NSArray *)values {
897  for (GPBMessage *value in values) {
898    [self writeGroup:fieldNumber value:value];
899  }
900}
901
902// clang-format on
903//%PDDM-EXPAND WRITE_UNPACKABLE_DEFNS(UnknownGroup, GPBUnknownFieldSet)
904// This block of code is generated, do not edit it directly.
905// clang-format off
906
907- (void)writeUnknownGroupArray:(int32_t)fieldNumber values:(NSArray *)values {
908  for (GPBUnknownFieldSet *value in values) {
909    [self writeUnknownGroup:fieldNumber value:value];
910  }
911}
912
913// clang-format on
914//%PDDM-EXPAND-END (19 expansions)
915
916- (void)writeMessageSetExtension:(int32_t)fieldNumber
917                           value:(GPBMessage *)value {
918  GPBWriteTagWithFormat(&state_, GPBWireFormatMessageSetItem,
919                        GPBWireFormatStartGroup);
920  GPBWriteUInt32(&state_, GPBWireFormatMessageSetTypeId, fieldNumber);
921  [self writeMessage:GPBWireFormatMessageSetMessage value:value];
922  GPBWriteTagWithFormat(&state_, GPBWireFormatMessageSetItem,
923                        GPBWireFormatEndGroup);
924}
925
926- (void)writeRawMessageSetExtension:(int32_t)fieldNumber value:(NSData *)value {
927  GPBWriteTagWithFormat(&state_, GPBWireFormatMessageSetItem,
928                        GPBWireFormatStartGroup);
929  GPBWriteUInt32(&state_, GPBWireFormatMessageSetTypeId, fieldNumber);
930  [self writeBytes:GPBWireFormatMessageSetMessage value:value];
931  GPBWriteTagWithFormat(&state_, GPBWireFormatMessageSetItem,
932                        GPBWireFormatEndGroup);
933}
934
935- (void)flush {
936  if (state_.output != nil) {
937    GPBRefreshBuffer(&state_);
938  }
939}
940
941- (void)writeRawByte:(uint8_t)value {
942  GPBWriteRawByte(&state_, value);
943}
944
945- (void)writeRawData:(const NSData *)data {
946  [self writeRawPtr:[data bytes] offset:0 length:[data length]];
947}
948
949- (void)writeRawPtr:(const void *)value
950             offset:(size_t)offset
951             length:(size_t)length {
952  if (value == nil || length == 0) {
953    return;
954  }
955
956  NSUInteger bufferLength = state_.size;
957  NSUInteger bufferBytesLeft = bufferLength - state_.position;
958  if (bufferBytesLeft >= length) {
959    // We have room in the current buffer.
960    memcpy(state_.bytes + state_.position, ((uint8_t *)value) + offset, length);
961    state_.position += length;
962  } else {
963    // Write extends past current buffer.  Fill the rest of this buffer and
964    // flush.
965    size_t bytesWritten = bufferBytesLeft;
966    memcpy(state_.bytes + state_.position, ((uint8_t *)value) + offset,
967           bytesWritten);
968    offset += bytesWritten;
969    length -= bytesWritten;
970    state_.position = bufferLength;
971    GPBRefreshBuffer(&state_);
972    bufferLength = state_.size;
973
974    // Now deal with the rest.
975    // Since we have an output stream, this is our buffer
976    // and buffer offset == 0
977    if (length <= bufferLength) {
978      // Fits in new buffer.
979      memcpy(state_.bytes, ((uint8_t *)value) + offset, length);
980      state_.position = length;
981    } else {
982      // Write is very big.  Let's do it all at once.
983      NSInteger written = [state_.output write:((uint8_t *)value) + offset maxLength:length];
984      if (written != (NSInteger)length) {
985        [NSException raise:GPBCodedOutputStreamException_WriteFailed format:@""];
986      }
987    }
988  }
989}
990
991- (void)writeTag:(uint32_t)fieldNumber format:(GPBWireFormat)format {
992  GPBWriteTagWithFormat(&state_, fieldNumber, format);
993}
994
995- (void)writeRawVarint32:(int32_t)value {
996  GPBWriteRawVarint32(&state_, value);
997}
998
999- (void)writeRawVarintSizeTAs32:(size_t)value {
1000  // Note the truncation.
1001  GPBWriteRawVarint32(&state_, (int32_t)value);
1002}
1003
1004- (void)writeRawVarint64:(int64_t)value {
1005  GPBWriteRawVarint64(&state_, value);
1006}
1007
1008- (void)writeRawLittleEndian32:(int32_t)value {
1009  GPBWriteRawLittleEndian32(&state_, value);
1010}
1011
1012- (void)writeRawLittleEndian64:(int64_t)value {
1013  GPBWriteRawLittleEndian64(&state_, value);
1014}
1015
1016#pragma clang diagnostic pop
1017
1018@end
1019
1020size_t GPBComputeDoubleSizeNoTag(Float64 value) {
1021#pragma unused(value)
1022  return LITTLE_ENDIAN_64_SIZE;
1023}
1024
1025size_t GPBComputeFloatSizeNoTag(Float32 value) {
1026#pragma unused(value)
1027  return LITTLE_ENDIAN_32_SIZE;
1028}
1029
1030size_t GPBComputeUInt64SizeNoTag(uint64_t value) {
1031  return GPBComputeRawVarint64Size(value);
1032}
1033
1034size_t GPBComputeInt64SizeNoTag(int64_t value) {
1035  return GPBComputeRawVarint64Size(value);
1036}
1037
1038size_t GPBComputeInt32SizeNoTag(int32_t value) {
1039  if (value >= 0) {
1040    return GPBComputeRawVarint32Size(value);
1041  } else {
1042    // Must sign-extend.
1043    return 10;
1044  }
1045}
1046
1047size_t GPBComputeSizeTSizeAsInt32NoTag(size_t value) {
1048  return GPBComputeInt32SizeNoTag((int32_t)value);
1049}
1050
1051size_t GPBComputeFixed64SizeNoTag(uint64_t value) {
1052#pragma unused(value)
1053  return LITTLE_ENDIAN_64_SIZE;
1054}
1055
1056size_t GPBComputeFixed32SizeNoTag(uint32_t value) {
1057#pragma unused(value)
1058  return LITTLE_ENDIAN_32_SIZE;
1059}
1060
1061size_t GPBComputeBoolSizeNoTag(BOOL value) {
1062#pragma unused(value)
1063  return 1;
1064}
1065
1066size_t GPBComputeStringSizeNoTag(NSString *value) {
1067  NSUInteger length = [value lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
1068  return GPBComputeRawVarint32SizeForInteger(length) + length;
1069}
1070
1071size_t GPBComputeGroupSizeNoTag(GPBMessage *value) {
1072  return [value serializedSize];
1073}
1074
1075size_t GPBComputeUnknownGroupSizeNoTag(GPBUnknownFieldSet *value) {
1076  return value.serializedSize;
1077}
1078
1079size_t GPBComputeMessageSizeNoTag(GPBMessage *value) {
1080  size_t size = [value serializedSize];
1081  return GPBComputeRawVarint32SizeForInteger(size) + size;
1082}
1083
1084size_t GPBComputeBytesSizeNoTag(NSData *value) {
1085  NSUInteger valueLength = [value length];
1086  return GPBComputeRawVarint32SizeForInteger(valueLength) + valueLength;
1087}
1088
1089size_t GPBComputeUInt32SizeNoTag(int32_t value) {
1090  return GPBComputeRawVarint32Size(value);
1091}
1092
1093size_t GPBComputeEnumSizeNoTag(int32_t value) {
1094  return GPBComputeInt32SizeNoTag(value);
1095}
1096
1097size_t GPBComputeSFixed32SizeNoTag(int32_t value) {
1098#pragma unused(value)
1099  return LITTLE_ENDIAN_32_SIZE;
1100}
1101
1102size_t GPBComputeSFixed64SizeNoTag(int64_t value) {
1103#pragma unused(value)
1104  return LITTLE_ENDIAN_64_SIZE;
1105}
1106
1107size_t GPBComputeSInt32SizeNoTag(int32_t value) {
1108  return GPBComputeRawVarint32Size(GPBEncodeZigZag32(value));
1109}
1110
1111size_t GPBComputeSInt64SizeNoTag(int64_t value) {
1112  return GPBComputeRawVarint64Size(GPBEncodeZigZag64(value));
1113}
1114
1115size_t GPBComputeDoubleSize(int32_t fieldNumber, double value) {
1116  return GPBComputeTagSize(fieldNumber) + GPBComputeDoubleSizeNoTag(value);
1117}
1118
1119size_t GPBComputeFloatSize(int32_t fieldNumber, float value) {
1120  return GPBComputeTagSize(fieldNumber) + GPBComputeFloatSizeNoTag(value);
1121}
1122
1123size_t GPBComputeUInt64Size(int32_t fieldNumber, uint64_t value) {
1124  return GPBComputeTagSize(fieldNumber) + GPBComputeUInt64SizeNoTag(value);
1125}
1126
1127size_t GPBComputeInt64Size(int32_t fieldNumber, int64_t value) {
1128  return GPBComputeTagSize(fieldNumber) + GPBComputeInt64SizeNoTag(value);
1129}
1130
1131size_t GPBComputeInt32Size(int32_t fieldNumber, int32_t value) {
1132  return GPBComputeTagSize(fieldNumber) + GPBComputeInt32SizeNoTag(value);
1133}
1134
1135size_t GPBComputeFixed64Size(int32_t fieldNumber, uint64_t value) {
1136  return GPBComputeTagSize(fieldNumber) + GPBComputeFixed64SizeNoTag(value);
1137}
1138
1139size_t GPBComputeFixed32Size(int32_t fieldNumber, uint32_t value) {
1140  return GPBComputeTagSize(fieldNumber) + GPBComputeFixed32SizeNoTag(value);
1141}
1142
1143size_t GPBComputeBoolSize(int32_t fieldNumber, BOOL value) {
1144  return GPBComputeTagSize(fieldNumber) + GPBComputeBoolSizeNoTag(value);
1145}
1146
1147size_t GPBComputeStringSize(int32_t fieldNumber, NSString *value) {
1148  return GPBComputeTagSize(fieldNumber) + GPBComputeStringSizeNoTag(value);
1149}
1150
1151size_t GPBComputeGroupSize(int32_t fieldNumber, GPBMessage *value) {
1152  return GPBComputeTagSize(fieldNumber) * 2 + GPBComputeGroupSizeNoTag(value);
1153}
1154
1155size_t GPBComputeUnknownGroupSize(int32_t fieldNumber,
1156                                  GPBUnknownFieldSet *value) {
1157  return GPBComputeTagSize(fieldNumber) * 2 +
1158         GPBComputeUnknownGroupSizeNoTag(value);
1159}
1160
1161size_t GPBComputeMessageSize(int32_t fieldNumber, GPBMessage *value) {
1162  return GPBComputeTagSize(fieldNumber) + GPBComputeMessageSizeNoTag(value);
1163}
1164
1165size_t GPBComputeBytesSize(int32_t fieldNumber, NSData *value) {
1166  return GPBComputeTagSize(fieldNumber) + GPBComputeBytesSizeNoTag(value);
1167}
1168
1169size_t GPBComputeUInt32Size(int32_t fieldNumber, uint32_t value) {
1170  return GPBComputeTagSize(fieldNumber) + GPBComputeUInt32SizeNoTag(value);
1171}
1172
1173size_t GPBComputeEnumSize(int32_t fieldNumber, int32_t value) {
1174  return GPBComputeTagSize(fieldNumber) + GPBComputeEnumSizeNoTag(value);
1175}
1176
1177size_t GPBComputeSFixed32Size(int32_t fieldNumber, int32_t value) {
1178  return GPBComputeTagSize(fieldNumber) + GPBComputeSFixed32SizeNoTag(value);
1179}
1180
1181size_t GPBComputeSFixed64Size(int32_t fieldNumber, int64_t value) {
1182  return GPBComputeTagSize(fieldNumber) + GPBComputeSFixed64SizeNoTag(value);
1183}
1184
1185size_t GPBComputeSInt32Size(int32_t fieldNumber, int32_t value) {
1186  return GPBComputeTagSize(fieldNumber) + GPBComputeSInt32SizeNoTag(value);
1187}
1188
1189size_t GPBComputeSInt64Size(int32_t fieldNumber, int64_t value) {
1190  return GPBComputeTagSize(fieldNumber) +
1191         GPBComputeRawVarint64Size(GPBEncodeZigZag64(value));
1192}
1193
1194size_t GPBComputeMessageSetExtensionSize(int32_t fieldNumber,
1195                                         GPBMessage *value) {
1196  return GPBComputeTagSize(GPBWireFormatMessageSetItem) * 2 +
1197         GPBComputeUInt32Size(GPBWireFormatMessageSetTypeId, fieldNumber) +
1198         GPBComputeMessageSize(GPBWireFormatMessageSetMessage, value);
1199}
1200
1201size_t GPBComputeRawMessageSetExtensionSize(int32_t fieldNumber,
1202                                            NSData *value) {
1203  return GPBComputeTagSize(GPBWireFormatMessageSetItem) * 2 +
1204         GPBComputeUInt32Size(GPBWireFormatMessageSetTypeId, fieldNumber) +
1205         GPBComputeBytesSize(GPBWireFormatMessageSetMessage, value);
1206}
1207
1208size_t GPBComputeTagSize(int32_t fieldNumber) {
1209  return GPBComputeRawVarint32Size(
1210      GPBWireFormatMakeTag(fieldNumber, GPBWireFormatVarint));
1211}
1212
1213size_t GPBComputeWireFormatTagSize(int field_number, GPBDataType dataType) {
1214  size_t result = GPBComputeTagSize(field_number);
1215  if (dataType == GPBDataTypeGroup) {
1216    // Groups have both a start and an end tag.
1217    return result * 2;
1218  } else {
1219    return result;
1220  }
1221}
1222
1223size_t GPBComputeRawVarint32Size(int32_t value) {
1224  // value is treated as unsigned, so it won't be sign-extended if negative.
1225  if ((value & (0xffffffff << 7)) == 0) return 1;
1226  if ((value & (0xffffffff << 14)) == 0) return 2;
1227  if ((value & (0xffffffff << 21)) == 0) return 3;
1228  if ((value & (0xffffffff << 28)) == 0) return 4;
1229  return 5;
1230}
1231
1232size_t GPBComputeRawVarint32SizeForInteger(NSInteger value) {
1233  // Note the truncation.
1234  return GPBComputeRawVarint32Size((int32_t)value);
1235}
1236
1237size_t GPBComputeRawVarint64Size(int64_t value) {
1238  if ((value & (0xffffffffffffffffL << 7)) == 0) return 1;
1239  if ((value & (0xffffffffffffffffL << 14)) == 0) return 2;
1240  if ((value & (0xffffffffffffffffL << 21)) == 0) return 3;
1241  if ((value & (0xffffffffffffffffL << 28)) == 0) return 4;
1242  if ((value & (0xffffffffffffffffL << 35)) == 0) return 5;
1243  if ((value & (0xffffffffffffffffL << 42)) == 0) return 6;
1244  if ((value & (0xffffffffffffffffL << 49)) == 0) return 7;
1245  if ((value & (0xffffffffffffffffL << 56)) == 0) return 8;
1246  if ((value & (0xffffffffffffffffL << 63)) == 0) return 9;
1247  return 10;
1248}
1249