Merge pull request #206 from erikd/erikd/ghc-9.12

Support ghc 9.12

Author: coot

.github/workflows/haskell.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ghc: ["8.10", "9.2", "9.4", "9.6", "9.8", "9.10"]
+        ghc: ["8.10", "9.2", "9.4", "9.6", "9.8", "9.10", "9.12"]
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     defaults:

cabal.project

@@ -1,4 +1,4 @@
-index-state: hackage.haskell.org 2024-05-17T03:42:00Z
+index-state: hackage.haskell.org 2025-01-14T02:09:49Z
 
 packages: ./io-sim
           ./io-classes
@@ -11,3 +11,14 @@ package io-classes
 
 package strict-stm
   flags: +asserts
+
+if impl (ghc >= 9.12)
+  allow-newer:
+    -- Stuck on `cabal-3.14` issues and recalcitrant maintainers
+    -- https://github.com/haskell/aeson/issues/1124
+    , aeson:ghc-prim
+    , aeson:template-haskell
+
+    -- Fix blocked by aeson
+    -- https://github.com/haskellari/microstache/issues/43
+    , microstache:base

io-classes/CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ### next version
 
+* Support ghc-9.12
+
 ### Breaking changes
 
 * Added `threadLabel` to `MonadThread`

io-classes/io-classes.cabal

@@ -112,7 +112,7 @@ library
                        TypeFamilyDependencies
                        TypeOperators
                        UndecidableInstances
-  build-depends:       base  >=4.9 && <4.21,
+  build-depends:       base  >=4.9 && <4.22,
                        array,
                        async >=2.1,
                        bytestring,
@@ -140,7 +140,7 @@ library strict-stm
   reexported-modules:  Control.Concurrent.Class.MonadSTM.TSem as Control.Concurrent.Class.MonadSTM.Strict.TSem
   default-language:    Haskell2010
   default-extensions:  ImportQualifiedPost
-  build-depends:       base        >= 4.9 && <4.21,
+  build-depends:       base        >= 4.9 && <4.22,
                        array,
                        stm         >= 2.5 && <2.6,
 
@@ -163,7 +163,7 @@ library strict-mvar
   exposed-modules:     Control.Concurrent.Class.MonadMVar.Strict
   default-language:    Haskell2010
   default-extensions:  ImportQualifiedPost
-  build-depends:       base        >= 4.9 && <4.21,
+  build-depends:       base        >= 4.9 && <4.22,
                        io-classes:io-classes,
   ghc-options:         -Wall
                        -Wno-unticked-promoted-constructors
@@ -190,7 +190,7 @@ library si-timers
                        NumericUnderscores,
                        ScopedTypeVariables,
                        TypeFamilies
-  build-depends:       base              >=4.9 && <4.21,
+  build-depends:       base              >=4.9 && <4.22,
                        deepseq,
                        mtl,
                        nothunks,
@@ -214,7 +214,7 @@ library mtl
                    ,  Control.Monad.Class.MonadTime.SI.Trans
                    ,  Control.Monad.Class.MonadTimer.Trans
                    ,  Control.Monad.Class.MonadTimer.SI.Trans
-    build-depends:    base >=4.9 && <4.21,
+    build-depends:    base >=4.9 && <4.22,
                       array,
                       mtl,
 
@@ -231,7 +231,7 @@ library testlib
   exposed-modules:     Test.Control.Concurrent.Class.MonadMVar.Strict.WHNF
   default-language:    Haskell2010
   default-extensions:  ImportQualifiedPost
-  build-depends:       base              >=4.9 && <4.21,
+  build-depends:       base              >=4.9 && <4.22,
                        nothunks,
                        QuickCheck,
                        io-classes:strict-mvar

io-classes/src/Control/Monad/Class/MonadSTM/Internal.hs

@@ -1030,7 +1030,6 @@ unGetTBQueueDefault (TBQueue rsize read wsize _write _size) a = do
 -- | Default implementation of 'TArray'.
 --
 data TArrayDefault m i e = TArray (Array i (TVar m e))
-  deriving Typeable
 
 deriving instance (Eq (TVar m e), Ix i) => Eq (TArrayDefault m i e)
 

io-sim/CHANGELOG.md

@@ -24,6 +24,7 @@
   than one that finishes with `SimResult`.
 - More polymorphic `ppTrace_` type signature.
 - Fixed `tryReadTBQueue` when returning `Nothing`.
+- Support ghc 9.12
 
 ## 1.6.0.0
 

io-sim/io-sim.cabal

@@ -79,7 +79,7 @@ library
                        RankNTypes,
                        ScopedTypeVariables,
                        TypeFamilies
-  build-depends:       base              >=4.9 && <4.21,
+  build-depends:       base              >=4.9 && <4.22,
                        io-classes:{io-classes,strict-stm,si-timers}
                                         ^>=1.6 || ^>= 1.7,
                        exceptions        >=0.10,