binary-tagged: Tagged binary serialisation.

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Structurally tag binary serialisation stream.

Say you have:

data Record = Record
  { _recordFields  :: HM.HashMap Text (Integer, ByteString)
  , _recordEnabled :: Bool
  }
  deriving (Eq, Show, Generic)

instance Binary Record
instance HasStructuralInfo Record
instance HasSemanticVersion Record

then you can serialise and deserialise Record values with a structure tag by simply

encodeTaggedFile "cachefile" record
decodeTaggedFile "cachefile" :: IO Record

If structure of Record changes in between, deserialisation will fail early.

The overhead is next to non-observable, see a simple benchmark.

benchmarking encode/Binary
time                 362.6 μs   (361.2 μs .. 363.8 μs)

benchmarking encode/Tagged
time                 379.2 μs   (375.5 μs .. 382.2 μs)

benchmarking decode/Binary
time                 366.3 μs   (365.1 μs .. 368.1 μs)

benchmarking decode/Tagged
time                 367.6 μs   (367.0 μs .. 368.2 μs)

Properties

Versions 0.1.0.0, 0.1.1.0, 0.1.2.0, 0.1.3.0, 0.1.3.1, 0.1.4.0, 0.1.4.1, 0.1.4.2, 0.1.5, 0.1.5.1, 0.1.5.2, 0.2, 0.2, 0.3, 0.3.1
Change log CHANGELOG.md
Dependencies aeson (>=0.8 && <1.5), array (>=0.5.0.0 && <0.6), base (>=4.7.0.2 && <4.13), base16-bytestring (>=0.1.1.6 && <0.2), binary (>=0.7.1.0 && <0.10), bytestring (>=0.10.4.0 && <0.11), containers (>=0.5.5.1 && <0.7), cryptohash-sha1 (>=0.11.100.1 && <0.12), generics-sop (>=0.3.2.0 && <0.6), hashable (>=1.2 && <1.4), nats (>=1.1.2 && <1.2), scientific (==0.3.*), semigroups (>=0.18.5 && <0.20), tagged (>=0.7 && <0.9), text (>=1.2.3.0 && <1.3), time (>=1.4.2 && <1.9), unordered-containers (==0.2.*), vector (>=0.10 && <0.13) [details]
License BSD-3-Clause
Author Oleg Grenrus <oleg.grenrus@iki.fi>
Maintainer Oleg Grenrus <oleg.grenrus@iki.fi>
Category Data
Home page https://github.com/phadej/binary-tagged#readme
Bug tracker https://github.com/phadej/binary-tagged/issues
Source repo head: git clone https://github.com/phadej/binary-tagged
Uploaded by phadej at 2019-05-14T11:30:40Z

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