solana_borsh 0.0.1

Dart implementation of the Borsh serialization specification.

Dart implementation of the Borsh serializer.

import 'package:solana_borsh/borsh.dart';
import 'package:solana_borsh/codecs.dart';
import 'package:solana_borsh/models.dart';
import 'package:solana_borsh/types.dart';

void main() {

    final myObject = MyObject(
        u8: 255, 
        u16: null, 
        u32: 4294967295, 
        u64: BigInt.parse('18446744073709551615'), 
        string: 'Hello', 
        stringSized: 'Hello 7', 
        array: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9], 
        vec: [BigInt.zero, BigInt.one, BigInt.two],
    );

    final Iterable<int> encoded = myObject.toBorsh();
    final MyObject decoded = borsh.deserialize(myObject.borshSchema, encoded, MyObject.fromJson);
}

class MyObject extends BorshObject {
  
  MyObject({
    required this.u8,
    required this.u16,
    required this.u32,
    required this.u64,
    required this.string,
    required this.stringSized,
    required this.array,
    required this.vec,
  });

  final int u8;
  final int? u16;             // optional value.
  final int? u32;             // optional value.
  final BigInt u64;
  final String string;
  final String stringSized;   // Fixed-length string.
  final List<int> array;      // Fixed-length list.
  final List<BigInt> vec;     // Dynamic-length list.

  @override
  BorshSchema get borshSchema => borshCodec.schema;

  static BorshStructCodec get borshCodec => BorshStructCodec({
    'u8': borsh.u8,
    'u16': borsh.u16.option(),
    'u32': borsh.u32.cOption(), // 4-byte optional flag.
    'u64': borsh.u64,
    'string': borsh.string(),
    'stringSized': borsh.stringSized(7),
    'array': borsh.array(borsh.i64, 10),
    'vec': borsh.vec(borsh.u64),
  });

  @override
  factory MyObject.fromJson(final Map<String, dynamic> json) => MyObject(
    u8: json['u8'], 
    u16: json['u16'], 
    u32: json['u32'], 
    u64: json['u64'], 
    string: json['string'], 
    stringSized: json['stringSized'], 
    array: json['array'], 
    vec: json['vec'],
  );

  @override
  Map<String, dynamic> toJson() => {
    'u8': u8,
    'u16': u16,
    'u32': u32,
    'u64': u64,
    'string': string,
    'stringSized': stringSized,
    'array': array,
    'vec': vec,
  };
}