## Nim-Dagger ## Copyright (c) 2021 Status Research & Development GmbH ## Licensed under either of ## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE)) ## * MIT license ([LICENSE-MIT](LICENSE-MIT)) ## at your option. ## This file may not be copied, modified, or distributed except according to ## those terms. {.push raises: [Defect].} import pkg/questionable import pkg/questionable/results import ./blocktype export blocktype type BlockStreamRef* = ref object of RootObj method nextBlock*(b: BlockStreamRef): ?!Block {.base.} = doAssert(false, "Not implemented!") iterator items*(b: BlockStreamRef): Block = while true: without blk =? b.nextBlock(): break yield blk