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https://github.com/status-im/nim-codex.git
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1536bd6129
- Update async procedures to use explicit raises annotation - Modify TrackedFutures to handle futures with no raised exceptions - Replace `asyncSpawn` with explicit future tracking - Update test suites to use `unittest2` - Standardize error handling across network and async components - Remove deprecated error handling patterns This commit introduces a more robust approach to async error handling and future management, improving type safety and reducing potential runtime errors.
43 lines
1003 B
Nim
43 lines
1003 B
Nim
{.push raises: [].}
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import libp2p
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import pkg/stint
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import pkg/questionable
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import pkg/questionable/results
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import ./blockexc
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import ../../blocktype
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export questionable
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export stint
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export BlockPresenceType
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type
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PresenceMessage* = blockexc.BlockPresence
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Presence* = object
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address*: BlockAddress
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have*: bool
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price*: UInt256
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func parse(_: type UInt256, bytes: seq[byte]): ?UInt256 =
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if bytes.len > 32:
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return UInt256.none
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UInt256.fromBytesBE(bytes).some
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func init*(_: type Presence, message: PresenceMessage): ?Presence =
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without price =? UInt256.parse(message.price):
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return none Presence
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some Presence(
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address: message.address,
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have: message.`type` == BlockPresenceType.Have,
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price: price,
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)
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func init*(_: type PresenceMessage, presence: Presence): PresenceMessage =
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PresenceMessage(
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address: presence.address,
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`type`: if presence.have: BlockPresenceType.Have else: BlockPresenceType.DontHave,
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price: @(presence.price.toBytesBE),
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)
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