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