Simon Jakobi

With `--allow-newer=mtl` I'm seeing some errors: ``` Building library for cheapskate-0.1.1.2.. [1 of 8] Compiling Cheapskate.ParserCombinators ( Cheapskate/ParserCombinators.hs, dist/build/Cheapskate/ParserCombinators.o, dist/build/Cheapskate/ParserCombinators.dyn_o ) Cheapskate/ParserCombinators.hs:116:3: warning: [-Wnoncanonical-monad-instances] Noncanonical ‘return’ definition detected in the...

For example, compare http://hackage.haskell.org/package/newtype-generics-0.5.2#readme and http://hackage.haskell.org/package/newtype-generics-0.5.2.1#readme. I'm aware that this package is unmaintained. I just wanted to point out the issue and possibly spread awareness. :)

I just tried to save a page at the link `[MapClass / Mapping]()`. The result: > Happstack 7.4.5 > > Something went wrong here > Internal server error > Everything...

Fix build with GHC 9.2

5

…and setup CI on GitHub Actions. Fixes #19.

Build failure with GHC 9.2.1

2

``` Data/BloomFilter/Util.hs:43:38: error: • Couldn't match expected type ‘Word32#’ with actual type ‘Word#’ • In the first argument of ‘W32#’, namely ‘(x# `uncheckedShiftL#` i#)’ In the expression: W32# (x# `uncheckedShiftL#`...

Mathematical Web Typography

1

> In many stylesheets I see line-heights that are calculated as a quotient of the target line-height and the font size. This sometimes leads to irrational, magic numbers that need...

``` src/Data/Aeson/BetterErrors/Internal.hs:441:3: error: • Variable not in scope: forM :: [(a0, A.Value)] -> ((Int, A.Value) -> ParseT err m a) -> ParseT err m [a] • Perhaps you meant one...

``` src/ShellCheck/Fixer.hs:230:9: error: Variable not in scope: when :: Bool -> t0 -> StateT (PSTree Int) Data.Functor.Identity.Identity a0 | 230 | when (l1 /= 1 || l2 /= 1) $...

Build failure with mtl-2.3

1

``` Building library for transient-0.7.0.0.. [1 of 8] Compiling Transient.Internals ( src/Transient/Internals.hs, dist/build/Transient/Internals.o, dist/build/Transient/Internals.dyn_o ) src/Transient/Internals.hs:363:10: error: Not in scope: type constructor or class ‘MonadPlus’ | 363 | instance MonadPlus...

Compile time increases related to changes between `text-1.2.5.0` and `text-2.0.1`

2

The compile time for `texmath-0.12.5.2` with GHC 9.2.4 roughly doubles from 68s to 141s when I use `text-2.0.1` vs. `text-1.2.5.0`. A module that is particularly affected is [`Text.TeXMath.Readers.MathML.EntityMap`](https://hackage.haskell.org/package/texmath-0.12.5.2/docs/src/Text.TeXMath.Readers.MathML.EntityMap.html) which has...