Base64Encoder class

A specialized single-pass AlphabetEncoder for Base-64.

Processes the input 3 bytes at a time into 4 characters, writing directly into a single correctly-sized (and, if applicable, padded) output buffer. This avoids the multiple regroup/lookup/pad passes of the generic engine.

Inheritance

Constructors

Base64Encoder({required List<int> alphabet, int? padding})
Creates a new Base64Encoder instance.
const

Properties

alphabet → List<int>
The lookup table mapping each output word value to its character code.
finalinherited
bits → int
The bit-length of a single word in the encoded output.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
padding → int?
The padding character.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
source → int
The bit-length of the input array elements. The value should be between 2 to 64.
finalinherited
target → int
The bit-length of the output array elements. The value should be between 2 to 64.
no setterinherited

Methods

bind(Stream<Iterable<int>> stream) → Stream<Iterable<int>>
Transforms the provided stream.
inherited
cast<RS, RT>() → Converter<RS, RT>
Provides a Converter<RS, RT> view of this stream transformer.
inherited
convert(covariant List<int> input) → Uint8List
Converts input array of numbers with bit-length of source to an array of numbers with bit-length of target. The input array will be treated as a sequence of bits to convert.
override
fuse<TT>(Converter<Iterable<int>, TT> other) → Converter<Iterable<int>, TT>
Fuses this with other.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
startChunkedConversion(Sink<Iterable<int>> sink) → Sink<Iterable<int>>
Starts a chunked conversion.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited