getPureBcsSchema function

BcsType? getPureBcsSchema(dynamic typeSignature)

Implementation

BcsType? getPureBcsSchema(dynamic typeSignature) {
	if (typeSignature is String) {
		switch (typeSignature) {
			case 'address':
				return SuiBcs.Address;
			case 'bool':
				return SuiBcs.BOOL;
			case 'u8':
				return SuiBcs.U8;
			case 'u16':
				return SuiBcs.U16;
			case 'u32':
				return SuiBcs.U32;
			case 'u64':
				return SuiBcs.U64;
			case 'u128':
				return SuiBcs.U128;
			case 'u256':
				return SuiBcs.U256;
			default:
				throw ArgumentError("Unknown type signature $typeSignature");
		}
	}

  if (typeSignature is Map<String, dynamic> && typeSignature.containsKey('vector')) {
    if (typeSignature['vector'] == 'u8') {
      return SuiBcs.VECTOR(SuiBcs.U8).transform(
        input: (dynamic val) => val is String ? Uint8List.fromList(val.codeUnits) : val,
        output: (val) => val,
      );
    }
    final type = getPureBcsSchema(typeSignature['vector']);
    return type != null ? SuiBcs.VECTOR(type) : null;
  }

  if (typeSignature is Map<String, dynamic> && typeSignature.containsKey('datatype')) {
    final datatypeInfo = typeSignature['datatype'] as Map<String, dynamic>;
    final pkg = normalizeSuiAddress(datatypeInfo['package']);

    if (pkg == normalizeSuiAddress(MOVE_STDLIB_ADDRESS)) {
      if (datatypeInfo['module'] == STD_ASCII_MODULE_NAME &&
          datatypeInfo['type'] == STD_ASCII_STRUCT_NAME) {
        return SuiBcs.STRING;
      }

      if (datatypeInfo['module'] == STD_UTF8_MODULE_NAME &&
          datatypeInfo['type'] == STD_UTF8_STRUCT_NAME) {
        return SuiBcs.STRING;
      }

      if (datatypeInfo['module'] == STD_OPTION_MODULE_NAME &&
          datatypeInfo['type'] == STD_OPTION_STRUCT_NAME) {
        final type = getPureBcsSchema(datatypeInfo['typeParameters'][0]);
        return type != null ? SuiBcs.VECTOR(type) : null;
      }
    }

    if (pkg == normalizeSuiAddress(SUI_FRAMEWORK_ADDRESS) &&
        datatypeInfo['module'] == OBJECT_MODULE_NAME &&
        datatypeInfo['type'] == ID_STRUCT_NAME) {
      return SuiBcs.Address;
    }
  }

  return null;
}