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- Update bifunctors to version 5.6.1 revision 2.
5.6.1 [2023.03.13]
- -----------------
* Provide instances for the `Swap` and `Assoc` type classes from the `assoc`
package. (These instances were previously defined in `assoc` itself, but they
have been migrated over to `bifunctors` in tandem with the `assoc-1.1`
release.)
* Only depend on `bifunctor-classes-compat` if building with GHC 8.0.
5.6 [2023.03.12]
- ---------------
* Drop support for GHC 7.10 and earlier.
* Move the `Data.Bifunctor`, `Data.Bifoldable`, and `Data.Bitraversable`
compatibility modules to the new `bifunctor-classes-compat` package. For
backwards compatibility, the `bifunctors` library re-exports
`Data.Bifoldable` and `Data.Bitraversable` modules from
`bifunctor-classes-compat` when building with GHC 8.0.
If your library depends on `bifunctors` and compiles with pre-8.2
versions of GHC, be warned that it may be possible to construct a
build plan involving a pre-`5.6` version of `bifunctors` where:
* Some of the `Bifunctor` instances come from
`bifunctor-classes-compat`'s compatibility classes, and
* Other `Bifunctor` instances come from `bifunctors`'s compatibility classes.
These compatibility classes are distinct, so this could lead to build errors
under certain conditions. Some possible ways to mitigate this risk include:
* Drop support for GHC 8.0 and older in your library.
* Require `bifunctors >= 5.6` in your library.
* If neither of the options above are viable, then you can temporarily
define instances for the old compatibility classes from `bifunctors` like
so:
```hs
- - For Bifunctor instances
import qualified "bifunctor-classes-compat" Data.Bifunctor as BifunctorCompat
[#]if !MIN_VERSION_bifunctors(5,6,0) && !MIN_VERSION_base(4,8,0)
import qualified "bifunctors" Data.Bifunctor as Bifunctor
[#]endif
instance BifunctorCompat.Bifunctor MyType where ...
[#]if !MIN_VERSION_bifunctors(5,6,0) && !MIN_VERSION_base(4,8,0)
instance Bifunctor.Bifunctor MyType where ...
[#]endif
```
```hs
- - For Bifoldable and Bitraversable instances
import qualified "bifunctor-classes-compat" Data.Bifoldable as BifoldableCompat
import qualified "bifunctor-classes-compat" Data.Bitraversable as BitraversableCompat
[#]if !MIN_VERSION_bifunctors(5,6,0) && !MIN_VERSION_base(4,10,0)
import qualified "bifunctors" Data.Bifoldable as Bifoldable
import qualified "bifunctors" Data.Bitraversable as Bitraversable
[#]endif
instance BifoldableCompat.Bifoldable MyType where ...
instance BitraversableCompat.Bitraversable MyType where ...
[#]if !MIN_VERSION_bifunctors(5,6,0) && !MIN_VERSION_base(4,10,0)
instance Bifoldable.Bifoldable MyType where ...
instance Bitraversable.Bitraversable MyType where ...
[#]endif
```
If your package does nothing but define instances of `Bifunctor` _et al._,
you may consider replacing your `bifunctors` dependency with
`bifunctor-classes-compat` to reduce your dependency footprint. If you do,
it is strongly recommended that you bump your package's major version number
so that your users are alerted to the details of the migration.
* Define a `Foldable1` instance for `Joker`, and define `Bifoldable1` instances
for `Biff`, `Clown`, `Flip`, `Join`, `Joker`, `Product`, `Tannen`, and
`WrappedBifunctor`. These instances were originally defined in the
`semigroupoids` library, and they have now been migrated to `bifunctors` as
a side effect of adapting to
[this Core Libraries Proposal](https://github.com/haskell/core-libraries-committee/issues/9),
which adds `Foldable1` and `Bifoldable1` to `base`.
5.5.15 [2023.02.27]
- ------------------
* Support `th-abstraction-0.5.*`.
5.5.14 [2022.12.07]
- ------------------
* Define `Functor`, `Foldable`, and `Traversable` instances for `Sum` and
`Product`.
5.5.13 [2022.09.12]
- ------------------
* Make the `Biapplicative` instances for tuples lazy, to match their `Bifunctor`
instances.
- Update bifunctors to version 5.5.12.
5.5.12 [2022.05.07]
- ------------------
* Backport an upstream GHC change which removes the default implementation of
`bitraverse`. Per the discussion in
https://github.com/haskell/core-libraries-committee/issues/47, this default
implementation was completely broken, as attempting to use it would always
result in an infinite loop.
- disable %{ix86} build
- Replace %setup -q with the more modern %autosetup macro.
- Re-generate file with latest version of spec-cleaner.
- Drop obsolete group attributes.
- Update Cabal file for more accurate build dependencies.
- Use https URL to refer to bugs.opensuse.org.
- Update bifunctors to version 5.5.7. 5.5.7 [2020.01.29] - ----------------- * Add `Data.Bifunctor.Biap`.
- Update bifunctors to version 5.5.6.
5.5.6 [2019.11.26]
- -----------------
* Add `Category`, `Arrow`, `ArrowChoice`, `ArrowLoop`, `ArrowZero`, and
`ArrowPlus` instances for `Data.Bifunctor.Product`.
- Drop obsolete group attributes.
- Update bifunctors to version 5.5.5.
5.5.5 [2019.08.27]
- -----------------
* Add `Eq{1,2}`, `Ord{1,2}`, `Read{1,2}`, and `Show{1,2}` instances for data
types in the `Data.Bifunctor.*` module namespace where possible. The
operative phrase is "where possible" since many of these instances require
the use of `Eq2`/`Ord2`/`Read2`/`Show2`, which are not avaiable when
built against `transformers-0.4.*`.
- Update Cabal file for more accurate build dependencies.
- Update bifunctors to version 5.5.4. 5.5.4 [2019.04.26] - ----------------- * Support `th-abstraction-0.3` or later. * Don't incur a `semigroup` dependency on recent GHCs.
- Use https URL to refer to bugs.opensuse.org.
- Cosmetic: replace tabs with blanks, strip trailing white space, and update copyright headers with spec-cleaner.
- Update bifunctors to version 5.5.3.
5.5.3 [2018.07.04]
- -----------------
* Make `biliftA2` a class method of `Biapplicative`.
* Add the `traverseBia`, `sequenceBia`, and `traverseBiaWith` functions for
traversing a `Traversable` container in a `Biapplicative`.
* Avoid incurring some dependencies when using recent GHCs.
- Update bifunctors to version 5.5.2 revision 2.
* `Data.Bifunctor.TH` now derives `bimap`/`bitraverse`
implementations for empty data types that are strict in the argument.
* `Data.Bifunctor.TH` no longer derives `bifoldr`/`bifoldMap` implementations
that error on empty data types. Instead, they simply return the folded state
(for `bifoldr`) or `mempty` (for `bifoldMap`).
* When using `Data.Bifunctor.TH` to derive `Bifunctor` or `Bitraversable`
instances for data types where the last two type variables are at phantom
roles, generated `bimap`/`bitraverse` implementations now use `coerce` for
efficiency.
* Add `Options` to `Data.Bifunctor.TH`, along with variants of existing
functions that take `Options` as an argument. For now, the only configurable
option is whether derived instances for empty data types should use the
`EmptyCase` extension (this is disabled by default).
- Update bifunctors to version 5.5.11 revision 1. Upstream has revised the Cabal build instructions on Hackage.
- Update bifunctors to version 5.5.11. 5.5.11 [2021.04.30] - ------------------ * Allow building with `template-haskell-2.18` (GHC 9.2).
- Update bifunctors to version 5.5.10.
5.5.10 [2021.01.21]
- ------------------
* Fix a bug in which `deriveBifoldable` could generate code that triggers
`-Wunused-matches` warnings.
- Update bifunctors to version 5.5.9. 5.5.9 [2020.12.30] - ----------------- * Explicitly mark modules as Safe or Trustworthy.
- disable %{ix86} build
- Update bifunctors to version 5.5.8.
5.5.8 [2020.10.01]
- -----------------
* Fix a bug in which `deriveBifunctor` would fail on sufficiently complex uses
of rank-n types in constructor fields.
* Fix a bug in which `deriveBiunctor` and related functions would needlessly
reject data types whose two last type parameters appear as oversaturated
arguments to a type family.
- Update bifunctors to version 5.5.7 revision 1. Upstream has revised the Cabal build instructions on Hackage.
- Replace %setup -q with the more modern %autosetup macro.
- Re-generate file with latest version of spec-cleaner.
- Updated with latest spec-cleaner version 0.9.8-8-geadfbbf.
- Update to version 5.4.2 with cabal2obs.
- Update to version 5.4.1 revision 1 with cabal2obs.
- Update to version 5.4.1 revision 0 with cabal2obs.
- Update to version 5.2 revision 0 with cabal2obs.
- update to 5.2
* dded several Arrow-like instances for Tannen so we can use it as the Cayley
construction if needed.
* Added Data.Bifunctor.Sum
* Added BifunctorFunctor, BifunctorMonad and BifunctorComonad.
- update to 5.1
* Added Data.Bifunctor.Fix
* Added Data.Bifunctor.TH, which permits TemplateHaskell-based deriving
of Bifunctor, Bifoldable and Bitraversable instances.
* Simplified Bitraversable.
- update to version 5 * Inverted the dependency on semigroupoids. We can support a much wider array of base versions than it can. * Added flags
- correct licence to BSD-2-Clause
- initial commit