Debian stable is not on 8.6, which was always our guide as to which GHC
versions we want to support.
In particular, this lets us get rid of all the quickcheck-classes
special treatment.
Related: 400730fe3b
The tests are implemented by using a newtype wrapper `TestStack`. This is to
avoid creating `Eq1` and `Show1` instances for `Stack` itself, which are needed
by quickcheck-classes to run with GHC less than 8.5. Tests are automatically
generated by `traversalLaws` and `foldableLaws` using the `Arbitrary` instance
for `TestStack`.
Fix test failures on GHC 8 for `abort` and `new_abort` caused by `error`
appending the stack trace to the error message (since base
4.9.0.0)[1]. This fixes#36.
An alternative is to use `errorWithoutStackTrace` (new in base 4.9.0.0),
but this then requires use of CPP for backwards compatibility.
Remove type constraints prompting GHC to warn about redundant
constraints.
Tested with 7.6.3, 7.8.4, 7.10.3, 8.0.1 (all on NixOS).
[1] https://hackage.haskell.org/package/base-4.9.0.0/docs/GHC-Stack.html
Changes include:
- compatibility with base-4 or 3 (base-2 untested) by using
extensible-exceptions. This adds an additional dependency for users of
ghc<6.10)
- list all dependencies again when -ftesting (change in Cabal-1.8.0.2)
- remove unnecessary imports
- suppress -fwarn-unused-do-bind, with appropriate Cabal-1.8 workaround,
described here:
http://www.haskell.org/pipermail/xmonad/2010-January/009554.html
* Read is no longer a superclass of Layout
* All of the core layouts have moved to the new Layouts.hs module
* Select has been replaced by the new statically typed Choose combinator,
which is heavily based on David Roundy's NewSelect proposal for
XMonadContrib. Consequently:
- Rather than a list of choosable layouts, we use the ||| combinator to
combine several layouts into a single switchable layout
- We've lost the capability to JumpToLayout and PrevLayout. Both can be
added with some effort
I realize this is a big change, but the name 'findIndex' was confusing for me, since I expected it to return some sort of integer. What it actually does, of course, is return a workspace tag, which might be more general than an index.
Of course, this change breaks several contrib modules; I'll submit a patch to make the change there as well.
