Add GHC 9.12 to CI (#20)

.github/workflows/ci.yml

@@ -18,6 +18,10 @@ jobs:
           version: 1.5.0.1
   ci-wasm:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ghc: ['9_10', '9_12']
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v30
@@ -27,26 +31,33 @@ jobs:
             ~/.ghc-wasm/.cabal/store
           key: wasm-${{ github.run_id }}
           restore-keys: |
-            wasm-${{ github.run_id }}
-            wasm-
+            wasm-${{ matrix.ghc }}-${{ github.run_id }}
+            wasm-${{ matrix.ghc }}-
+      - uses: nicknovitski/nix-develop@v1
+        with:
+          arguments: '.#"${{ matrix.ghc }}"'
       - name: Build
         run: |
           mv cabal.project.ci cabal.project.local
-          nix develop --command bash -c \
-            'wasm32-wasi-cabal update && wasm32-wasi-cabal build'
+          wasm32-wasi-cabal update
+          wasm32-wasi-cabal build
   ci-native:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ghc: ['9.10', '9.12']
     steps:
       - uses: actions/checkout@v4
       - uses: haskell-actions/setup@v2
         id: setup-haskell
         with:
-          ghc-version: '9.10'
+          ghc-version: ${{ matrix.ghc }}
       - uses: actions/cache@v4
         with:
           path: ${{ steps.setup-haskell.outputs.cabal-store }}
           key: ci-native-${{ github.run_id }}
           restore-keys: |
-            ci-native-${{ github.run_id }}
-            ci-native-
+            ci-native-${{ matrix.ghc }}-${{ github.run_id }}
+            ci-native-${{ matrix.ghc }}-
       - run: cabal build

cabal.project

@@ -3,10 +3,11 @@ packages: .
 tests: True
 
 if arch(wasm32)
-  allow-newer: time-compat:time
-
   -- https://github.com/haskellari/splitmix/pull/73
   source-repository-package
     type: git
     location: https://github.com/amesgen/splitmix
-    tag: 5f5b766d97dc735ac228215d240a3bb90bc2ff75
+    tag: cea9e31bdd849eb0c17611bb99e33d590e126164
+
+if impl(ghc >=9.12)
+  allow-newer: base, ghc-prim, template-haskell

flake.nix

@@ -5,12 +5,16 @@
     ghc-wasm-meta.url = "gitlab:haskell-wasm/ghc-wasm-meta?host=gitlab.haskell.org";
   };
   outputs = inputs: inputs.flake-utils.lib.eachDefaultSystem (system:
-    let pkgs = inputs.nixpkgs.legacyPackages.${system};
-    in {
-      devShells.default = pkgs.mkShell {
+    let
+      pkgs = inputs.nixpkgs.legacyPackages.${system};
+      inherit (pkgs) lib;
+      devShells = lib.genAttrs [ "9_10" "9_12" ] (ghc: pkgs.mkShell {
         packages = [
-          inputs.ghc-wasm-meta.packages.${system}.all_9_10
+          inputs.ghc-wasm-meta.packages.${system}."all_${ghc}"
         ];
-      };
+      });
+    in
+    {
+      devShells = devShells // { default = devShells."9_10"; };
     });
 }

jsaddle-wasm.cabal

@@ -58,7 +58,7 @@ library
     build-depends:
       aeson >=2 && <2.3,
       bytestring >=0.11 && <0.13,
-      ghc-experimental ^>=0.1,
+      ghc-experimental ^>=0.1 || >=9.1200 && <9.1300,
       stm ^>=2.5,
 
     hs-source-dirs: src-wasm