FlutterStandardTypedData Class Reference

#import <FlutterCodecs.h>

Inheritance diagram for FlutterStandardTypedData:

Instance Methods
(instancetype)	- initWithData:type: [implementation]
(BOOL)	- isEqual: [implementation]
(NSUInteger)	- hash [implementation]

Class Methods
(instancetype)	+ typedDataWithBytes:
(instancetype)	+ typedDataWithInt32:
(instancetype)	+ typedDataWithInt64:
(instancetype)	+ typedDataWithFloat32:
(instancetype)	+ typedDataWithFloat64:
(instancetype)	+ typedDataWithData:type: [implementation]

Properties
NSData *	data
FlutterStandardDataType	type
UInt32	elementCount
UInt8	elementSize

Detailed Description

A byte buffer holding UInt8, SInt32, SInt64, or Float64 values, used with FlutterStandardMessageCodec and FlutterStandardMethodCodec.

Two's complement encoding is used for signed integers. IEEE754 double-precision representation is used for floats. The platform's native endianness is assumed.

Definition at line 300 of file FlutterCodecs.h.

Method Documentation

hash

- (NSUInteger) hash

implementation

Definition at line 8 of file FlutterStandardCodec.mm.

                   {
  return [self.data hash] ^ self.type;
}

initWithData:type:

- (instancetype) initWithData: (NSData*)  data type: (FlutterStandardDataType)  type

implementation

Definition at line 8 of file FlutterStandardCodec.mm.

                            :(NSData*)data type:(FlutterStandardDataType)type {
  UInt8 elementSize = elementSizeForFlutterStandardDataType(type);
  NSAssert(data, @"Data cannot be nil");
  NSAssert(data.length % elementSize == 0, @"Data must contain integral number of elements");
  self = [super init];
  NSAssert(self, @"Super init cannot be nil");
  _data = [data copy];
  _type = type;
  _elementSize = elementSize;
  _elementCount = data.length / elementSize;
  return self;
}

isEqual:

- (BOOL) isEqual: (id)  object

implementation

Definition at line 8 of file FlutterStandardCodec.mm.

               :(id)object {
  if (self == object) {
    return YES;
  }
  if (![object isKindOfClass:[FlutterStandardTypedData class]]) {
    return NO;
  }
  FlutterStandardTypedData* other = (FlutterStandardTypedData*)object;
  return self.type == other.type && self.elementCount == other.elementCount &&
         [self.data isEqual:other.data];
}

typedDataWithBytes:

+ (instancetype) typedDataWithBytes:

(NSData*)

data

Creates a FlutterStandardTypedData which interprets the specified data as plain bytes.

Parameters

data	the byte data.

Definition at line 8 of file FlutterStandardCodec.mm.

                                  :(NSData*)data {
  return [FlutterStandardTypedData typedDataWithData:data type:FlutterStandardDataTypeUInt8];
}

typedDataWithData:type:

+ (instancetype) typedDataWithData: (NSData*)  data type: (FlutterStandardDataType)  type

implementation

Definition at line 8 of file FlutterStandardCodec.mm.

                                 :(NSData*)data type:(FlutterStandardDataType)type {
  return [[FlutterStandardTypedData alloc] initWithData:data type:type];
}

typedDataWithFloat32:

+ (instancetype) typedDataWithFloat32:

(NSData*)

data

Creates a FlutterStandardTypedData which interprets the specified data as 32-bit floats.

Parameters

data	the byte data. The length must be divisible by 8.

Definition at line 8 of file FlutterStandardCodec.mm.

                                    :(NSData*)data {
  return [FlutterStandardTypedData typedDataWithData:data type:FlutterStandardDataTypeFloat32];
}

typedDataWithFloat64:

+ (instancetype) typedDataWithFloat64:

(NSData*)

data

Creates a FlutterStandardTypedData which interprets the specified data as 64-bit floats.

Parameters

data	the byte data. The length must be divisible by 8.

Definition at line 8 of file FlutterStandardCodec.mm.

                                    :(NSData*)data {
  return [FlutterStandardTypedData typedDataWithData:data type:FlutterStandardDataTypeFloat64];
}

typedDataWithInt32:

+ (instancetype) typedDataWithInt32:

(NSData*)

data

Creates a FlutterStandardTypedData which interprets the specified data as 32-bit signed integers.

Parameters

data	the byte data. The length must be divisible by 4.

Definition at line 8 of file FlutterStandardCodec.mm.

                                  :(NSData*)data {
  return [FlutterStandardTypedData typedDataWithData:data type:FlutterStandardDataTypeInt32];
}

typedDataWithInt64:

+ (instancetype) typedDataWithInt64:

(NSData*)

data

Creates a FlutterStandardTypedData which interprets the specified data as 64-bit signed integers.

Parameters

data	the byte data. The length must be divisible by 8.

Definition at line 8 of file FlutterStandardCodec.mm.

                                  :(NSData*)data {
  return [FlutterStandardTypedData typedDataWithData:data type:FlutterStandardDataTypeInt64];
}

Property Documentation

data

- (NSData*) data

readnonatomicassign

The raw underlying data buffer.

Definition at line 344 of file FlutterCodecs.h.

elementCount

- (UInt32) elementCount

readnonatomicassign

The number of value items encoded.

Definition at line 354 of file FlutterCodecs.h.

elementSize

- (UInt8) elementSize

readnonatomicassign

The number of bytes used by the encoding of a single value item.

Definition at line 359 of file FlutterCodecs.h.

type

- (FlutterStandardDataType) type

readnonatomicassign

The type of the encoded values.

Definition at line 349 of file FlutterCodecs.h.

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The documentation for this class was generated from the following files:

• shell/platform/darwin/common/framework/Headers/FlutterCodecs.h
• shell/platform/darwin/common/framework/Source/FlutterStandardCodec.mm