Moving to Doom Emacs!

.emacs.d/modules/lang/haskell/config.el

@@ -0,0 +1,41 @@
+;;; lang/haskell/config.el -*- lexical-binding: t; -*-
+
+(after! projectile
+  (add-to-list 'projectile-project-root-files "stack.yaml"))
+
+;; TODO ghcide?
+(cond ((featurep! +intero) (load! "+intero")) ; DEPRECATED
+      ((featurep! +dante)  (load! "+dante"))
+      ((featurep! +lsp)    (load! "+lsp")))
+
+
+;;
+;; Common packages
+
+(after! haskell-mode
+  (setq haskell-process-suggest-remove-import-lines t  ; warnings for redundant imports etc
+        haskell-process-auto-import-loaded-modules t
+        haskell-process-show-overlays (not (featurep! :tools flycheck))) ; redundant with flycheck
+
+  (set-lookup-handlers! 'haskell-mode
+    :definition #'haskell-mode-jump-to-def-or-tag)
+  (set-file-template! 'haskell-mode
+    :trigger #'haskell-auto-insert-module-template
+    :project t)
+  (set-repl-handler!
+    '(haskell-mode haskell-cabal-mode literate-haskell-mode)
+    #'+haskell/open-repl :persist t)
+
+  (add-hook! 'haskell-mode-hook
+             #'haskell-collapse-mode ; support folding haskell code blocks
+             #'interactive-haskell-mode)
+
+  (add-to-list 'completion-ignored-extensions ".hi")
+
+  (map! :localleader
+        :map haskell-mode-map
+        ;; this is set to use cabal for dante users and stack for intero users:
+        "b" #'haskell-process-cabal-build
+        "c" #'haskell-cabal-visit-file
+        "h" #'haskell-hide-toggle
+        "H" #'haskell-hide-toggle-all))