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https://github.com/logos-messaging/logos-delivery.git
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549834203d
* bump libp2p pin to release/v2.0.0 (c43199378) * pin nimble.lock: lsquic/websock/boringssl/protobuf_serialization/npeg/jwt * add libp2p_mix dep and point libp2p/protocols/mix -> libp2p_mix * migrate rng to libp2p Rng type (prod, channels, noise, tests) * noise: take Rng, extract bearSslDrbg internally * waku_switch: TransportConfig factory; withMaxInOut; local MaxConnections * waku_relay/rendezvous/discv5/kademlia: v2.0.0 API (rng, config, ServiceDiscovery) * tests: newStandardSwitch shim; PeerId.random(rng); common.rng()/crypto.newRng() * drop libp2p/utils/semaphore (use chronos AsyncSemaphore) * add waku/compat/option_valueor shim where needed * add std/options where transitive re-export dropped
36 lines
1.0 KiB
Nim
36 lines
1.0 KiB
Nim
## Polyfill: `valueOr` / `withValue` templates for `std/options.Option[T]`.
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##
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## Previously provided transitively by `libp2p/utility`, removed in
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## nim-libp2p PR #2162 (commit 8a9943145). logos-delivery uses these
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## templates pervasively on `Option[T]`. The shim restores them here while
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## we adapt to upstream churn; collocated under `waku/compat/` so the
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## category is explicit (compatibility with upstream API drift), not a
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## generic dumping ground.
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{.push raises: [].}
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import std/[macros, options]
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template valueOr*[T](self: Option[T], body: untyped): untyped =
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let temp = (self)
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if temp.isSome:
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temp.get()
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else:
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body
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template withValue*[T](self: Option[T], value, body: untyped): untyped =
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let temp = (self)
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if temp.isSome:
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let `value` {.inject.} = temp.get()
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body
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macro withValue*[T](self: Option[T], value, body, elseStmt: untyped): untyped =
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let elseBody = elseStmt[0]
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quote:
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let temp = (`self`)
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if temp.isSome:
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let `value` {.inject.} = temp.get()
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`body`
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else:
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`elseBody`
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