haskell-debugger

homeConfig/modules/neovim/config/lazyvim/lua/config/autocmds.lua

@@ -103,3 +103,27 @@ cmp.setup({
 		["<S-Tab>"] = cmp.mapping.select_prev_item(),
 	},
 })
+
+local dap = require("dap")
+dap.adapters.haskell = {
+	type = "executable",
+	command = "haskell-debug-adapter",
+	args = { "--hackage-version=0.0.33.0" },
+}
+dap.configurations.haskell = {
+	{
+		type = "haskell",
+		request = "launch",
+		name = "Debug",
+		workspace = "${workspaceFolder}",
+		startup = "${file}",
+		stopOnEntry = true,
+		logFile = vim.fn.stdpath("data") .. "/haskell-dap.log",
+		logLevel = "WARNING",
+		ghciEnv = vim.empty_dict(),
+		ghciPrompt = "λ: ",
+		-- Adjust the prompt to the prompt you see when you invoke the ghci command below
+		ghciInitialPrompt = "λ: ",
+		ghciCmd = "ghci --test --no-load --no-build --main-is TARGET --ghci-options -fprint-evld-with-show",
+	},
+}

homeConfig/modules/neovim/config/servers.nix

@@ -20,5 +20,8 @@ let
     purescript-language-server
   ];
   
+  debug = with pkgs; [
+    haskellPackages.haskell-debug-adapter
+  ];
 in
-  lsp ++ lsp'
+  lsp ++ lsp' ++ debug