./devel/hs-hashable, Class for types that can be converted to a hash value

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Branch: CURRENT, Version: 1.5.0.0nb2, Package name: hs-hashable-1.5.0.0nb2, Maintainer: pho

This package defines a class, Hashable, for types that can be converted to a
hash value. This class exists for the benefit of hashing-based data structures.
The package provides instances for basic types and a way to combine hash values.

Hashable is intended exclusively for use in in-memory data structures.

Hashable does not have a fixed standard. This allows it to improve over time.

Because it does not have a fixed standard, different computers or computers on
different versions of the code will observe different hash values. As
such, hashable is not recommended for use other than in-memory datastructures.
Specifically, hashable is not intended for network use or in applications which
persist hashed values. For stable hashing use named hashes: sha256, crc32,
xxhash etc.


Required to run:
[lang/ghc88]

Required to build:
[pkgtools/cwrappers]

Master sites:

Filesize: 86.975 KB

Version history: (Expand)

CVS history: (Expand)


   2025-03-05 04:40:14 by Masatake Daimon | Files touched by this commit (1173) 
Log message:
recursive revbump after patching lang/ghc910
   2025-02-02 14:06:08 by Masatake Daimon | Files touched by this commit (1173) 
Log message:
Bump all Haskell packages after switching the default compiler.
   2025-01-29 18:26:39 by Masatake Daimon | Files touched by this commit (2) 
Log message:
devel/hs-hashable: Forgot to commit distinfo and PLIST
   2025-01-29 17:43:05 by Masatake Daimon | Files touched by this commit (3) | Package updated
Log message:
devel/hs-hashable: update to hashable-1.5.0.0

## Version 1.5.0.0

  * Add `QuantifiedConstraints` superclasses to `Hashable1/2`:

```haskell
class (Eq1 t, forall a. Hashable a => Hashable (t a)) => Hashable1 t where
class (Eq2 t, forall a. Hashable a => Hashable1 (t a)) => Hashable2 t where
```

  * Change contexts of `Compose`, `Product` and `Sum` instances.
    This and above is the similar change as [CLC proposal \ 
#10](https://github.com/haskell/core-libraries-committee/issues/10)

  * The above changes require `base-4.18.0.0`, so we drop support for GHC prior \ 
GHC-9.6.5
    (The `hashable-1.4` branch will be maintained for time being for older GHC \ 
users).

  * Make `Arg a b` instance behave as `Hashable a` instance.

## Version 1.4.7.0

  * Make `arch-native` disabled by default.

## Version 1.4.6.0

  * Use GND&DerivingVia to derive `newtype` intances (`Data.Semigroup`, \ 
`Data.Monoid`, `Identity` etc).

## Version 1.4.5.0

  * Drop support for GHCs prior 8.6.5
  * Use xxhash for hashing bytestrings and bytearrays.
    Note: when compiling binaries for distribution, you may need to disable
    `arch-native` flag.
   2024-05-09 03:32:57 by Masatake Daimon | Files touched by this commit (1137) 
Log message:
Recursive revbump after changing the default Haskell compiler
   2024-04-29 05:28:32 by Masatake Daimon | Files touched by this commit (4) 
Log message:
devel/hs-hashable: Update to 1.4.4.0

Version 1.4.4.0

    Depend on os-string-2 for GHC-9.2+
    Support filepath-1.5
   2023-11-02 07:37:49 by Masatake Daimon | Files touched by this commit (1141) 
Log message:
Revbump all Haskell after updating lang/ghc96
   2023-10-27 09:07:26 by Masatake Daimon | Files touched by this commit (4) 
Log message:
devel/hs-hashable: Update to 1.4.3.0

Version 1.4.3.0
* Export defaultHashWithSalt and defaultHash.
* Fix issue of tuples with 0 first component causing all-zero state.
* Change hashInt to mix bits more.