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FlutterStandardCodec.mm
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #import "flutter/shell/platform/darwin/common/framework/Source/FlutterStandardCodecHelper.h"
6 #import "flutter/shell/platform/darwin/common/framework/Source/FlutterStandardCodec_Internal.h"
7
8 FLUTTER_ASSERT_ARC
9
10 #pragma mark - Codec for basic message channel
11
12 @implementation FlutterStandardMessageCodec {
13 FlutterStandardReaderWriter* _readerWriter;
14 }
15 + (instancetype)sharedInstance {
16 static id _sharedInstance = nil;
17 if (!_sharedInstance) {
18 FlutterStandardReaderWriter* readerWriter = [[FlutterStandardReaderWriter alloc] init];
19 _sharedInstance = [[FlutterStandardMessageCodec alloc] initWithReaderWriter:readerWriter];
20 }
21 return _sharedInstance;
22 }
23
24 + (instancetype)codecWithReaderWriter:(FlutterStandardReaderWriter*)readerWriter {
25 return [[FlutterStandardMessageCodec alloc] initWithReaderWriter:readerWriter];
26 }
27
28 - (instancetype)initWithReaderWriter:(FlutterStandardReaderWriter*)readerWriter {
29 self = [super init];
30 NSAssert(self, @"Super init cannot be nil");
31 _readerWriter = readerWriter;
32 return self;
33 }
34
35 - (NSData*)encode:(id)message {
36 if (message == nil) {
37 return nil;
38 }
39 NSMutableData* data = [NSMutableData dataWithCapacity:32];
40 FlutterStandardWriter* writer = [_readerWriter writerWithData:data];
41 [writer writeValue:message];
42 return data;
43 }
44
45 - (id)decode:(NSData*)message {
46 if ([message length] == 0) {
47 return nil;
48 }
49 FlutterStandardReader* reader = [_readerWriter readerWithData:message];
50 id value = [reader readValue];
51 NSAssert(![reader hasMore], @"Corrupted standard message");
52 return value;
53 }
54 @end
55
56 #pragma mark - Codec for method channel
57
58 @implementation FlutterStandardMethodCodec {
59 FlutterStandardReaderWriter* _readerWriter;
60 }
61 + (instancetype)sharedInstance {
62 static id _sharedInstance = nil;
63 if (!_sharedInstance) {
64 FlutterStandardReaderWriter* readerWriter = [[FlutterStandardReaderWriter alloc] init];
65 _sharedInstance = [[FlutterStandardMethodCodec alloc] initWithReaderWriter:readerWriter];
66 }
67 return _sharedInstance;
68 }
69
70 + (instancetype)codecWithReaderWriter:(FlutterStandardReaderWriter*)readerWriter {
71 return [[FlutterStandardMethodCodec alloc] initWithReaderWriter:readerWriter];
72 }
73
74 - (instancetype)initWithReaderWriter:(FlutterStandardReaderWriter*)readerWriter {
75 self = [super init];
76 NSAssert(self, @"Super init cannot be nil");
77 _readerWriter = readerWriter;
78 return self;
79 }
80
81 - (NSData*)encodeMethodCall:(FlutterMethodCall*)call {
82 NSMutableData* data = [NSMutableData dataWithCapacity:32];
83 FlutterStandardWriter* writer = [_readerWriter writerWithData:data];
84 [writer writeValue:call.method];
85 [writer writeValue:call.arguments];
86 return data;
87 }
88
89 - (NSData*)encodeSuccessEnvelope:(id)result {
90 NSMutableData* data = [NSMutableData dataWithCapacity:32];
91 FlutterStandardWriter* writer = [_readerWriter writerWithData:data];
92 [writer writeByte:0];
93 [writer writeValue:result];
94 return data;
95 }
96
97 - (NSData*)encodeErrorEnvelope:(FlutterError*)error {
98 NSMutableData* data = [NSMutableData dataWithCapacity:32];
99 FlutterStandardWriter* writer = [_readerWriter writerWithData:data];
100 [writer writeByte:1];
101 [writer writeValue:error.code];
102 [writer writeValue:error.message];
103 [writer writeValue:error.details];
104 return data;
105 }
106
107 - (FlutterMethodCall*)decodeMethodCall:(NSData*)message {
108 FlutterStandardReader* reader = [_readerWriter readerWithData:message];
109 id value1 = [reader readValue];
110 id value2 = [reader readValue];
111 NSAssert(![reader hasMore], @"Corrupted standard method call");
112 NSAssert([value1 isKindOfClass:[NSString class]], @"Corrupted standard method call");
113 return [FlutterMethodCall methodCallWithMethodName:value1 arguments:value2];
114 }
115
116 - (id)decodeEnvelope:(NSData*)envelope {
117 FlutterStandardReader* reader = [_readerWriter readerWithData:envelope];
118 UInt8 flag = [reader readByte];
119 NSAssert(flag <= 1, @"Corrupted standard envelope");
120 id result;
121 switch (flag) {
122 case 0: {
123 result = [reader readValue];
124 NSAssert(![reader hasMore], @"Corrupted standard envelope");
125 } break;
126 case 1: {
127 id code = [reader readValue];
128 id message = [reader readValue];
129 id details = [reader readValue];
130 NSAssert(![reader hasMore], @"Corrupted standard envelope");
131 NSAssert([code isKindOfClass:[NSString class]], @"Invalid standard envelope");
132 NSAssert(message == nil || [message isKindOfClass:[NSString class]],
133 @"Invalid standard envelope");
134 result = [FlutterError errorWithCode:code message:message details:details];
135 } break;
136 }
137 return result;
138 }
139 @end
140
141 using namespace flutter;
142
143 #pragma mark - Standard serializable types
144
145 @implementation FlutterStandardTypedData
146 + (instancetype)typedDataWithBytes:(NSData*)data {
147 return [FlutterStandardTypedData typedDataWithData:data type:FlutterStandardDataTypeUInt8];
148 }
149
150 + (instancetype)typedDataWithInt32:(NSData*)data {
151 return [FlutterStandardTypedData typedDataWithData:data type:FlutterStandardDataTypeInt32];
152 }
153
154 + (instancetype)typedDataWithInt64:(NSData*)data {
155 return [FlutterStandardTypedData typedDataWithData:data type:FlutterStandardDataTypeInt64];
156 }
157
158 + (instancetype)typedDataWithFloat32:(NSData*)data {
159 return [FlutterStandardTypedData typedDataWithData:data type:FlutterStandardDataTypeFloat32];
160 }
161
162 + (instancetype)typedDataWithFloat64:(NSData*)data {
163 return [FlutterStandardTypedData typedDataWithData:data type:FlutterStandardDataTypeFloat64];
164 }
165
166 + (instancetype)typedDataWithData:(NSData*)data type:(FlutterStandardDataType)type {
167 return [[FlutterStandardTypedData alloc] initWithData:data type:type];
168 }
169
170 - (instancetype)initWithData:(NSData*)data type:(FlutterStandardDataType)type {
171 UInt8 elementSize = elementSizeForFlutterStandardDataType(type);
172 NSAssert(data, @"Data cannot be nil");
173 NSAssert(data.length % elementSize == 0, @"Data must contain integral number of elements");
174 self = [super init];
175 NSAssert(self, @"Super init cannot be nil");
176 _data = [data copy];
177 _type = type;
178 _elementSize = elementSize;
179 _elementCount = data.length / elementSize;
180 return self;
181 }
182
183 - (BOOL)isEqual:(id)object {
184 if (self == object) {
185 return YES;
186 }
187 if (![object isKindOfClass:[FlutterStandardTypedData class]]) {
188 return NO;
189 }
190 FlutterStandardTypedData* other = (FlutterStandardTypedData*)object;
191 return self.type == other.type && self.elementCount == other.elementCount &&
192 [self.data isEqual:other.data];
193 }
194
195 - (NSUInteger)hash {
196 return [self.data hash] ^ self.type;
197 }
198 @end
199
200 #pragma mark - Writer and reader of standard codec
201
202 @implementation FlutterStandardWriter {
203 NSMutableData* _data;
204 }
205
206 - (instancetype)initWithData:(NSMutableData*)data {
207 self = [super init];
208 NSAssert(self, @"Super init cannot be nil");
209 _data = data;
210 return self;
211 }
212
213 - (void)writeByte:(UInt8)value {
214 FlutterStandardCodecHelperWriteByte((__bridge CFMutableDataRef)_data, value);
215 }
216
217 - (void)writeBytes:(const void*)bytes length:(NSUInteger)length {
218 FlutterStandardCodecHelperWriteBytes((__bridge CFMutableDataRef)_data, bytes, length);
219 }
220
221 - (void)writeData:(NSData*)data {
222 FlutterStandardCodecHelperWriteData((__bridge CFMutableDataRef)_data, (__bridge CFDataRef)data);
223 }
224
225 - (void)writeSize:(UInt32)size {
226 FlutterStandardCodecHelperWriteSize((__bridge CFMutableDataRef)_data, size);
227 }
228
229 - (void)writeAlignment:(UInt8)alignment {
230 FlutterStandardCodecHelperWriteAlignment((__bridge CFMutableDataRef)_data, alignment);
231 }
232
233 - (void)writeUTF8:(NSString*)value {
234 FlutterStandardCodecHelperWriteUTF8((__bridge CFMutableDataRef)_data,
235 (__bridge CFStringRef)value);
236 }
237
238 static FlutterStandardCodecObjcType GetWriteType(id value) {
239 if (value == nil || (__bridge CFNullRef)value == kCFNull) {
240 return FlutterStandardCodecObjcTypeNil;
241 } else if ([value isKindOfClass:[NSNumber class]]) {
242 return FlutterStandardCodecObjcTypeNSNumber;
243 } else if ([value isKindOfClass:[NSString class]]) {
244 return FlutterStandardCodecObjcTypeNSString;
245 } else if ([value isKindOfClass:[FlutterStandardTypedData class]]) {
246 return FlutterStandardCodecObjcTypeFlutterStandardTypedData;
247 } else if ([value isKindOfClass:[NSData class]]) {
248 return FlutterStandardCodecObjcTypeNSData;
249 } else if ([value isKindOfClass:[NSArray class]]) {
250 return FlutterStandardCodecObjcTypeNSArray;
251 } else if ([value isKindOfClass:[NSDictionary class]]) {
252 return FlutterStandardCodecObjcTypeNSDictionary;
253 } else {
254 return FlutterStandardCodecObjcTypeUnknown;
255 }
256 }
257
258 struct WriteKeyValuesInfo {
259 CFTypeRef writer;
260 CFMutableDataRef data;
261 };
262
263 static void WriteKeyValues(CFTypeRef key, CFTypeRef value, void* context) {
264 WriteKeyValuesInfo* info = (WriteKeyValuesInfo*)context;
265 FastWriteValueOfType(info->writer, info->data, key);
266 FastWriteValueOfType(info->writer, info->data, value);
267 }
268
269 // Recurses into WriteValueOfType directly if it is writing a known type,
270 // otherwise recurses with objc_msgSend.
271 static void FastWriteValueOfType(CFTypeRef writer, CFMutableDataRef data, CFTypeRef value) {
272 FlutterStandardCodecObjcType type = GetWriteType((__bridge id)value);
273 if (type != FlutterStandardCodecObjcTypeUnknown) {
274 WriteValueOfType(writer, data, type, value);
275 } else {
276 [(__bridge FlutterStandardWriter*)writer writeValue:(__bridge id)value];
277 }
278 }
279
280 static void WriteValueOfType(CFTypeRef writer,
281 CFMutableDataRef data,
282 FlutterStandardCodecObjcType type,
283 CFTypeRef value) {
284 switch (type) {
285 case FlutterStandardCodecObjcTypeNil:
286 FlutterStandardCodecHelperWriteByte(data, FlutterStandardFieldNil);
287 break;
288 case FlutterStandardCodecObjcTypeNSNumber: {
289 CFNumberRef number = (CFNumberRef)value;
290 BOOL success = FlutterStandardCodecHelperWriteNumber(data, number);
291 if (!success) {
292 NSLog(@"Unsupported value: %@ of number type %ld", value, CFNumberGetType(number));
293 NSCAssert(NO, @"Unsupported value for standard codec");
294 }
295 break;
296 }
297 case FlutterStandardCodecObjcTypeNSString: {
298 CFStringRef string = (CFStringRef)value;
299 FlutterStandardCodecHelperWriteByte(data, FlutterStandardFieldString);
300 FlutterStandardCodecHelperWriteUTF8(data, string);
301 break;
302 }
303 case FlutterStandardCodecObjcTypeFlutterStandardTypedData: {
304 FlutterStandardTypedData* typedData = (__bridge FlutterStandardTypedData*)value;
305 FlutterStandardCodecHelperWriteByte(data, FlutterStandardFieldForDataType(typedData.type));
306 FlutterStandardCodecHelperWriteSize(data, typedData.elementCount);
307 FlutterStandardCodecHelperWriteAlignment(data, typedData.elementSize);
308 FlutterStandardCodecHelperWriteData(data, (__bridge CFDataRef)typedData.data);
309 break;
310 }
311 case FlutterStandardCodecObjcTypeNSData:
312 WriteValueOfType(writer, data, FlutterStandardCodecObjcTypeFlutterStandardTypedData,
313 (__bridge CFTypeRef)
314 [FlutterStandardTypedData typedDataWithBytes:(__bridge NSData*)value]);
315 break;
316 case FlutterStandardCodecObjcTypeNSArray: {
317 CFArrayRef array = (CFArrayRef)value;
318 FlutterStandardCodecHelperWriteByte(data, FlutterStandardFieldList);
319 CFIndex count = CFArrayGetCount(array);
320 FlutterStandardCodecHelperWriteSize(data, count);
321 for (CFIndex i = 0; i < count; ++i) {
322 FastWriteValueOfType(writer, data, CFArrayGetValueAtIndex(array, i));
323 }
324 break;
325 }
326 case FlutterStandardCodecObjcTypeNSDictionary: {
327 CFDictionaryRef dict = (CFDictionaryRef)value;
328 FlutterStandardCodecHelperWriteByte(data, FlutterStandardFieldMap);
329 CFIndex count = CFDictionaryGetCount(dict);
330 FlutterStandardCodecHelperWriteSize(data, count);
331 WriteKeyValuesInfo info = {
332 .writer = writer,
333 .data = data,
334 };
335 CFDictionaryApplyFunction(dict, WriteKeyValues, (void*)&info);
336 break;
337 }
338 case FlutterStandardCodecObjcTypeUnknown: {
339 id objc_value = (__bridge id)value;
340 NSLog(@"Unsupported value: %@ of type %@", objc_value, [objc_value class]);
341 NSCAssert(NO, @"Unsupported value for standard codec");
342 break;
343 }
344 }
345 }
346
347 - (void)writeValue:(id)value {
348 FlutterStandardCodecObjcType type = GetWriteType(value);
349 WriteValueOfType((__bridge CFTypeRef)self, (__bridge CFMutableDataRef)self->_data, type,
350 (__bridge CFTypeRef)value);
351 }
352 @end
353
354 @implementation FlutterStandardReader {
355 NSData* _data;
356 NSRange _range;
357 }
358
359 - (instancetype)initWithData:(NSData*)data {
360 self = [super init];
361 NSAssert(self, @"Super init cannot be nil");
362 _data = [data copy];
363 _range = NSMakeRange(0, 0);
364 return self;
365 }
366
367 - (BOOL)hasMore {
368 return _range.location < _data.length;
369 }
370
371 - (void)readBytes:(void*)destination length:(NSUInteger)length {
372 FlutterStandardCodecHelperReadBytes(&_range.location, length, destination,
373 (__bridge CFDataRef)_data);
374 }
375
376 - (UInt8)readByte {
377 return FlutterStandardCodecHelperReadByte(&_range.location, (__bridge CFDataRef)_data);
378 }
379
380 - (UInt32)readSize {
381 return FlutterStandardCodecHelperReadSize(&_range.location, (__bridge CFDataRef)_data);
382 }
383
384 - (NSData*)readData:(NSUInteger)length {
385 _range.length = length;
386 NSData* data = [_data subdataWithRange:_range];
387 _range.location += _range.length;
388 return data;
389 }
390
391 - (NSString*)readUTF8 {
392 return (__bridge NSString*)FlutterStandardCodecHelperReadUTF8(&_range.location,
393 (__bridge CFDataRef)_data);
394 }
395
396 - (void)readAlignment:(UInt8)alignment {
397 FlutterStandardCodecHelperReadAlignment(&_range.location, alignment);
398 }
399
400 - (nullable id)readValue {
401 return (__bridge id)ReadValue((__bridge CFTypeRef)self);
402 }
403
404 static CFTypeRef ReadValue(CFTypeRef user_data) {
405 FlutterStandardReader* reader = (__bridge FlutterStandardReader*)user_data;
406 uint8_t type = FlutterStandardCodecHelperReadByte(&reader->_range.location,
407 (__bridge CFDataRef)reader->_data);
408 return (__bridge CFTypeRef)[reader readValueOfType:type];
409 }
410
411 static CFTypeRef ReadTypedDataOfType(FlutterStandardField field, CFTypeRef user_data) {
412 FlutterStandardReader* reader = (__bridge FlutterStandardReader*)user_data;
413 unsigned long* location = &reader->_range.location;
414 CFDataRef data = (__bridge CFDataRef)reader->_data;
415 FlutterStandardDataType type = FlutterStandardDataTypeForField(field);
416
417 UInt64 elementCount = FlutterStandardCodecHelperReadSize(location, data);
418 UInt64 elementSize = elementSizeForFlutterStandardDataType(type);
419 FlutterStandardCodecHelperReadAlignment(location, elementSize);
420 UInt64 length = elementCount * elementSize;
421 NSRange range = NSMakeRange(*location, length);
422 // Note: subdataWithRange performs better than CFDataCreate and
423 // CFDataCreateBytesNoCopy crashes.
424 NSData* bytes = [(__bridge NSData*)data subdataWithRange:range];
425 *location += length;
426 return (__bridge CFTypeRef)[FlutterStandardTypedData typedDataWithData:bytes type:type];
427 }
428
429 - (nullable id)readValueOfType:(UInt8)type {
430 return (__bridge id)FlutterStandardCodecHelperReadValueOfType(
431 &_range.location, (__bridge CFDataRef)_data, type, ReadValue, ReadTypedDataOfType,
432 (__bridge CFTypeRef)self);
433 }
434 @end
435
436 @implementation FlutterStandardReaderWriter
437 - (FlutterStandardWriter*)writerWithData:(NSMutableData*)data {
438 return [[FlutterStandardWriter alloc] initWithData:data];
439 }
440
441 - (FlutterStandardReader*)readerWithData:(NSData*)data {
442 return [[FlutterStandardReader alloc] initWithData:data];
443 }
444 @end
_range
NSRange _range
Definition: FlutterStandardCodec.mm:354
FlutterStandardCodec_Internal.h
FlutterStandardCodecHelperReadValueOfType
CFTypeRef FlutterStandardCodecHelperReadValueOfType(unsigned long *location, CFDataRef data, uint8_t type, CFTypeRef(*ReadValue)(CFTypeRef), CFTypeRef(*ReadTypedDataOfType)(FlutterStandardField, CFTypeRef), CFTypeRef user_data)
Definition: FlutterStandardCodecHelper.cc:103
FlutterStandardCodecHelperWriteNumber
bool FlutterStandardCodecHelperWriteNumber(CFMutableDataRef data, CFNumberRef number)
Definition: FlutterStandardCodecHelper.cc:239
FlutterStandardCodecHelperWriteData
void FlutterStandardCodecHelperWriteData(CFMutableDataRef data, CFDataRef value)
Definition: FlutterStandardCodecHelper.cc:232
FlutterStandardCodecHelperReadByte
uint8_t FlutterStandardCodecHelperReadByte(unsigned long *location, CFDataRef data)
Definition: FlutterStandardCodecHelper.cc:42
FlutterStandardCodecHelperWriteSize
void FlutterStandardCodecHelperWriteSize(CFMutableDataRef data, uint32_t size)
Definition: FlutterStandardCodecHelper.cc:188
FlutterStandardCodecHelperReadUTF8
CFStringRef FlutterStandardCodecHelperReadUTF8(unsigned long *location, CFDataRef data)
Definition: FlutterStandardCodecHelper.cc:75
FlutterStandardCodecHelperWriteBytes
void FlutterStandardCodecHelperWriteBytes(CFMutableDataRef data, const void *bytes, unsigned long length)
Definition: FlutterStandardCodecHelper.cc:182
FlutterStandardCodecHelperWriteUTF8
void FlutterStandardCodecHelperWriteUTF8(CFMutableDataRef data, CFStringRef value)
Definition: FlutterStandardCodecHelper.cc:211
FlutterStandardCodecHelperWriteByte
void FlutterStandardCodecHelperWriteByte(CFMutableDataRef data, uint8_t value)
Definition: FlutterStandardCodecHelper.cc:178
FlutterStandardCodecHelperReadSize
uint32_t FlutterStandardCodecHelperReadSize(unsigned long *location, CFDataRef data)
Definition: FlutterStandardCodecHelper.cc:49
FlutterStandardCodecHelperReadAlignment
void FlutterStandardCodecHelperReadAlignment(unsigned long *location, uint8_t alignment)
Definition: FlutterStandardCodecHelper.cc:18
FlutterStandardCodecHelperWriteAlignment
void FlutterStandardCodecHelperWriteAlignment(CFMutableDataRef data, uint8_t alignment)
Definition: FlutterStandardCodecHelper.cc:201
FlutterStandardCodecHelperReadBytes
void FlutterStandardCodecHelperReadBytes(unsigned long *location, unsigned long length, void *destination, CFDataRef data)
Definition: FlutterStandardCodecHelper.cc:33
FlutterStandardCodecHelper.h
FlutterStandardField
FlutterStandardField
Definition: FlutterStandardCodecHelper.h:19
FlutterStandardFieldMap
@ FlutterStandardFieldMap
Definition: FlutterStandardCodecHelper.h:34
FlutterStandardFieldList
@ FlutterStandardFieldList
Definition: FlutterStandardCodecHelper.h:33
FlutterStandardFieldNil
@ FlutterStandardFieldNil
Definition: FlutterStandardCodecHelper.h:21
FlutterStandardFieldString
@ FlutterStandardFieldString
Definition: FlutterStandardCodecHelper.h:28
FlutterStandardCodecObjcType
FlutterStandardCodecObjcType
Definition: FlutterStandardCodecHelper.h:44
FlutterStandardCodecObjcTypeNSArray
@ FlutterStandardCodecObjcTypeNSArray
Definition: FlutterStandardCodecHelper.h:51
FlutterStandardCodecObjcTypeFlutterStandardTypedData
@ FlutterStandardCodecObjcTypeFlutterStandardTypedData
Definition: FlutterStandardCodecHelper.h:49
FlutterStandardCodecObjcTypeNSData
@ FlutterStandardCodecObjcTypeNSData
Definition: FlutterStandardCodecHelper.h:50
FlutterStandardCodecObjcTypeNSString
@ FlutterStandardCodecObjcTypeNSString
Definition: FlutterStandardCodecHelper.h:48
FlutterStandardCodecObjcTypeNil
@ FlutterStandardCodecObjcTypeNil
Definition: FlutterStandardCodecHelper.h:46
FlutterStandardCodecObjcTypeUnknown
@ FlutterStandardCodecObjcTypeUnknown
Definition: FlutterStandardCodecHelper.h:53
FlutterStandardCodecObjcTypeNSDictionary
@ FlutterStandardCodecObjcTypeNSDictionary
Definition: FlutterStandardCodecHelper.h:52
FlutterStandardCodecObjcTypeNSNumber
@ FlutterStandardCodecObjcTypeNSNumber
Definition: FlutterStandardCodecHelper.h:47
self
return self
Definition: FlutterTextureRegistryRelay.mm:19
FlutterError
Definition: FlutterCodecs.h:247
+[FlutterError errorWithCode:message:details:]
instancetype errorWithCode:message:details:(NSString *code,[message] NSString *_Nullable message,[details] id _Nullable details)
FlutterMethodCall
Definition: FlutterCodecs.h:221
+[FlutterMethodCall methodCallWithMethodName:arguments:]
instancetype methodCallWithMethodName:arguments:(NSString *method,[arguments] id _Nullable arguments)
FlutterStandardMessageCodec
Definition: FlutterCodecs.h:209
FlutterStandardMethodCodec
Definition: FlutterCodecs.h:469
FlutterStandardReader
Definition: FlutterCodecs.h:133
-[FlutterStandardReader readValueOfType:]
nullable id readValueOfType:(UInt8 type)
Definition: FlutterStandardCodec.mm:429
-[FlutterStandardReader readByte]
UInt8 readByte()
Definition: FlutterStandardCodec.mm:376
-[FlutterStandardReader readValue]
nullable id readValue()
Definition: FlutterStandardCodec.mm:400
FlutterStandardReaderWriter
Definition: FlutterCodecs.h:173
FlutterStandardTypedData
Definition: FlutterCodecs.h:301
FlutterStandardTypedData::elementSize
UInt8 elementSize
Definition: FlutterCodecs.h:359
FlutterStandardTypedData::elementCount
UInt32 elementCount
Definition: FlutterCodecs.h:354
FlutterStandardTypedData::type
FlutterStandardDataType type
Definition: FlutterCodecs.h:349
FlutterStandardTypedData::data
NSData * data
Definition: FlutterCodecs.h:344
FlutterStandardWriter
Definition: FlutterCodecs.h:93
-[FlutterStandardWriter writeByte:]
void writeByte:(UInt8 value)
Definition: FlutterStandardCodec.mm:213
-[FlutterStandardWriter writeValue:]
void writeValue:(id value)
Definition: FlutterStandardCodec.mm:347
FLUTTER_ASSERT_ARC
Definition: FlutterChannelKeyResponder.mm:13
flutter
Definition: accessibility_bridge.h:26
flutter::FlutterStandardFieldForDataType
FlutterStandardField FlutterStandardFieldForDataType(FlutterStandardDataType type)
Definition: FlutterStandardCodec_Internal.h:12
flutter::FlutterStandardDataTypeForField
FlutterStandardDataType FlutterStandardDataTypeForField(FlutterStandardField field)
Definition: FlutterStandardCodec_Internal.h:27
flutter::elementSizeForFlutterStandardDataType
UInt8 elementSizeForFlutterStandardDataType(FlutterStandardDataType type)
Definition: FlutterStandardCodec_Internal.h:45
WriteKeyValuesInfo
Definition: FlutterStandardCodec.mm:258
WriteKeyValuesInfo::writer
CFTypeRef writer
Definition: FlutterStandardCodec.mm:259
WriteKeyValuesInfo::data
CFMutableDataRef data
Definition: FlutterStandardCodec.mm:260
user_data
void * user_data
Definition: texture_registrar_unittests.cc:27