FlutterStandardReader Class Reference

#import <FlutterCodecs.h>

Inheritance diagram for FlutterStandardReader:

Instance Methods
(instancetype)	- initWithData:
(BOOL)	- hasMore
(UInt8)	- readByte
(void)	- readBytes:length:
(NSData *)	- readData:
(UInt32)	- readSize
(void)	- readAlignment:
(NSString *)	- readUTF8
(nullable id)	- readValue
(nullable id)	- readValueOfType:

Detailed Description

A reader of the Flutter standard binary encoding.

See FlutterStandardMessageCodec for details on the encoding.

The encoding is extensible via subclasses overriding readValueOfType.

Definition at line 132 of file FlutterCodecs.h.

Method Documentation

hasMore

- (BOOL) hasMore

Returns YES when the reader hasn't reached the end of its data.

Definition at line 367 of file FlutterStandardCodec.mm.

                {
  return _range.location < _data.length;
}

References _range.

initWithData:

- (instancetype) initWithData:

(NSData*)

data

Create a new FlutterStandardReader who reads from data.

Definition at line 359 of file FlutterStandardCodec.mm.

                            :(NSData*)data {
  self = [super init];
  NSAssert(self, @"Super init cannot be nil");
  _data = [data copy];
  _range = NSMakeRange(0, 0);
  return self;
}

References _range.

readAlignment:

- (void) readAlignment:

(UInt8)

alignment

Advances the read position until it is aligned with alignment.

Definition at line 396 of file FlutterStandardCodec.mm.

                     :(UInt8)alignment {
  FlutterStandardCodecHelperReadAlignment(&_range.location, alignment);
}

References _range, and FlutterStandardCodecHelperReadAlignment().

readByte

- (UInt8) readByte

Reads a byte value and increments the position.

Definition at line 376 of file FlutterStandardCodec.mm.

                  {
  return FlutterStandardCodecHelperReadByte(&_range.location, (__bridge CFDataRef)_data);
}

References _range, and FlutterStandardCodecHelperReadByte().

readBytes:length:

- (void) readBytes:		(void*)	destination
length:		(NSUInteger)	length

Reads a sequence of byte values of length and increments the position.

Definition at line 371 of file FlutterStandardCodec.mm.

                 :(void*)destination length:(NSUInteger)length {
  FlutterStandardCodecHelperReadBytes(&_range.location, length, destination,
                                      (__bridge CFDataRef)_data);
}

References _range, and FlutterStandardCodecHelperReadBytes().

Referenced by ExtendedReader::readValueOfType:.

readData:

- (NSData *) readData:

(NSUInteger)

length

Reads a sequence of byte values of length and increments the position.

Definition at line 384 of file FlutterStandardCodec.mm.

                   :(NSUInteger)length {
  _range.length = length;
  NSData* data = [_data subdataWithRange:_range];
  _range.location += _range.length;
  return data;
}

References _range.

readSize

- (UInt32) readSize

Reads a 32-bit unsigned integer representing a collection size and increments the position.

Definition at line 380 of file FlutterStandardCodec.mm.

                   {
  return FlutterStandardCodecHelperReadSize(&_range.location, (__bridge CFDataRef)_data);
}

References _range, and FlutterStandardCodecHelperReadSize().

readUTF8

- (NSString *) readUTF8

Read a null terminated string encoded with UTF-8/

Definition at line 391 of file FlutterStandardCodec.mm.

                      {
  return (__bridge NSString*)FlutterStandardCodecHelperReadUTF8(&_range.location,
                                                                (__bridge CFDataRef)_data);
}

References _range, and FlutterStandardCodecHelperReadUTF8().

readValue

- (nullable id) readValue

Reads a byte for FlutterStandardField the decodes a value matching that type.

See also: -[FlutterStandardWriter writeValue]

Definition at line 400 of file FlutterStandardCodec.mm.

                         {
  return (__bridge id)ReadValue((__bridge CFTypeRef)self);
}

Referenced by ExtendedReader::readValueOfType:.

readValueOfType:

- (nullable id) readValueOfType:

(UInt8)

type

Decodes a value matching the type specified.

See also:

• FlutterStandardField
• -[FlutterStandardWriter writeValue]

Reimplemented in ExtendedReader.

Definition at line 429 of file FlutterStandardCodec.mm.

                              :(UInt8)type {
  return (__bridge id)FlutterStandardCodecHelperReadValueOfType(
      &_range.location, (__bridge CFDataRef)_data, type, ReadValue, ReadTypedDataOfType,
      (__bridge CFTypeRef)self);
}

References _range, and FlutterStandardCodecHelperReadValueOfType().

Referenced by ExtendedReader::readValueOfType:.

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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