mirror of
https://github.com/logos-storage/logos-storage-nim.git
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60 lines
1.5 KiB
Nim
60 lines
1.5 KiB
Nim
## Logos Storage
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## Copyright (c) 2026 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: [].}
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import std/options
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import pkg/faststreams
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import pkg/protobuf_serialization
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import pkg/protobuf_serialization/codec
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Protobuf.extensionDefaults(Option[string])
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template isExtension*(T: type Protobuf, FieldType: type Option[string]): bool =
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true
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template flatType*(T: type Protobuf, value: Option[string]): type =
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string
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func computeFieldSize*(
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field: int,
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value: Option[string],
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ProtoType: type ProtobufExt,
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skipDefault: static bool,
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): int =
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if value.isSome:
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computeFieldSize(field, value.get, pstring, skipDefault)
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else:
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0
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proc writeField*(
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stream: OutputStream,
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field: int,
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value: Option[string],
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ProtoType: type ProtobufExt,
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skipDefault: static bool = false,
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) {.raises: [IOError].} =
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if value.isSome:
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writeField(stream, field, value.get, pstring, skipDefault)
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proc readFieldInto*(
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stream: InputStream,
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value: var Option[string],
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header: FieldHeader,
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ProtoType: type ProtobufExt,
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): bool {.raises: [SerializationError, IOError].} =
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var raw: string
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if readFieldInto(stream, raw, header, pstring):
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if raw.len > 0:
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value = some(raw)
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true
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else:
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false
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