FlutterStandardWriter Class Reference

#import <FlutterCodecs.h>

Inheritance diagram for FlutterStandardWriter:

Instance Methods
(instancetype)	- initWithData:
(void)	- writeByte:
(void)	- writeBytes:length:
(void)	- writeData:
(void)	- writeSize:
(void)	- writeAlignment:
(void)	- writeUTF8:
(void)	- writeValue:

Detailed Description

A writer of the Flutter standard binary encoding.

See FlutterStandardMessageCodec for details on the encoding.

The encoding is extensible via subclasses overriding writeValue.

Definition at line 92 of file FlutterCodecs.h.

Method Documentation

initWithData:

- (instancetype) initWithData:

(NSMutableData*)

data

Initial value:

{
  NSMutableData* _data

Create a FlutterStandardWriter who will write to data.

Definition at line 8 of file FlutterStandardCodec.mm.

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

writeAlignment:

- (void) writeAlignment:

(UInt8)

alignment

Write zero padding until data is aligned with alignment.

Definition at line 8 of file FlutterStandardCodec.mm.

                      :(UInt8)alignment {
  FlutterStandardCodecHelperWriteAlignment((__bridge CFMutableDataRef)_data, alignment);
}

writeByte:

- (void) writeByte:

(UInt8)

value

Write a 8-bit byte.

Definition at line 8 of file FlutterStandardCodec.mm.

                 :(UInt8)value {
  FlutterStandardCodecHelperWriteByte((__bridge CFMutableDataRef)_data, value);
}

writeBytes:length:

- (void) writeBytes:		(const void*)	bytes
length:		(NSUInteger)	length

Write an array of bytes of size length.

Definition at line 8 of file FlutterStandardCodec.mm.

                  :(const void*)bytes length:(NSUInteger)length {
  FlutterStandardCodecHelperWriteBytes((__bridge CFMutableDataRef)_data, bytes, length);
}

writeData:

- (void) writeData:

(NSData*)

data

Write an array of bytes contained in data.

Definition at line 8 of file FlutterStandardCodec.mm.

                 :(NSData*)data {
  FlutterStandardCodecHelperWriteData((__bridge CFMutableDataRef)_data, (__bridge CFDataRef)data);
}

writeSize:

- (void) writeSize:

(UInt32)

size

Write 32-bit unsigned integer that represents a size of a collection.

Definition at line 8 of file FlutterStandardCodec.mm.

                 :(UInt32)size {
  FlutterStandardCodecHelperWriteSize((__bridge CFMutableDataRef)_data, size);
}

writeUTF8:

- (void) writeUTF8:

(NSString*)

value

Write a string with UTF-8 encoding.

Definition at line 8 of file FlutterStandardCodec.mm.

                 :(NSString*)value {
  FlutterStandardCodecHelperWriteUTF8((__bridge CFMutableDataRef)_data,
                                      (__bridge CFStringRef)value);
}

writeValue:

- (void) writeValue:

(id)

value

Introspects into an object and writes its representation.

Supported Data Types:

• NSNull
• NSNumber
• NSString (as UTF-8)
• FlutterStandardTypedData
• NSArray of supported types
• NSDictionary of supporte types

NSAsserts on failure.

Reimplemented in ExtendedWriter.

Definition at line 280 of file FlutterStandardCodec.mm.

                  :(id)value {
  FlutterStandardCodecObjcType type = GetWriteType(value);
  WriteValueOfType((__bridge CFTypeRef)self, (__bridge CFMutableDataRef)self->_data, type,
                   (__bridge CFTypeRef)value);
}

References FlutterStandardTypedData::data, FlutterStandardTypedData::elementCount, FlutterStandardTypedData::elementSize, FlutterStandardCodecHelperWriteAlignment(), FlutterStandardCodecHelperWriteByte(), FlutterStandardCodecHelperWriteData(), FlutterStandardCodecHelperWriteNumber(), FlutterStandardCodecHelperWriteSize(), FlutterStandardCodecHelperWriteUTF8(), FlutterStandardCodecObjcTypeFlutterStandardTypedData, FlutterStandardCodecObjcTypeNil, FlutterStandardCodecObjcTypeNSArray, FlutterStandardCodecObjcTypeNSData, FlutterStandardCodecObjcTypeNSDictionary, FlutterStandardCodecObjcTypeNSNumber, FlutterStandardCodecObjcTypeNSString, FlutterStandardCodecObjcTypeUnknown, flutter::FlutterStandardFieldForDataType(), FlutterStandardFieldList, FlutterStandardFieldMap, FlutterStandardFieldNil, FlutterStandardFieldString, FlutterStandardTypedData::type, and WriteKeyValuesInfo::writer.

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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