Function isOptionStruct

yarn-project/stdlib/src/abi/utils.ts:89–97

(abiType: AbiType)

 * @returns A boolean indicating whether the ABI type is an Option struct.
 */
export function isOptionStruct(abiType: AbiType) {
  return (
    abiType.kind === 'struct' &&
    abiType.path === 'std::option::Option' &&
    abiType.fields.length === 2 &&
    abiType.fields[0].name === '_is_some' &&
    abiType.fields[1].name === '_value'
  );
}

/**
 * Returns whether `null` or `undefined` can be mapped to a valid ABI value for this type.