nvim: enable inlay hints + toggling

home/common/nvim/default.nix

@@ -50,7 +50,6 @@
     plugins = with pkgs.vimPlugins; [
       friendly-snippets
       go-nvim
-      rustaceanvim
       targets-vim
       ts-comments-nvim
 
@@ -116,6 +115,23 @@
         '';
       }
 
+      {
+        plugin = pkgs.vimUtils.buildVimPlugin {
+          name = "inlay-hints";
+          src = pkgs.fetchFromGitHub {
+            owner = "MysticalDevil";
+            repo = "inlay-hints.nvim";
+            rev = "af84dee42cd118af6d592b06c1c0e45d6432a6c0"; # 2024-08-23
+            hash = "sha256-DZVtFAUK9c8GInp+JdCQ1BKe0dkAheHKI67oxdMmA24=";
+          };
+        };
+        type = "lua";
+        config = ''
+          require('inlay-hints').setup()
+          require("inlay-hints.utils").enable_inlay_hints()
+        '';
+      }
+
       {
         plugin = codeium-nvim;
         type = "lua";
@@ -185,6 +201,12 @@
         type = "lua";
         config = lib.fileContents ./mini.lua;
       }
+
+      {
+        plugin = rustaceanvim;
+        type = "lua";
+        config = lib.fileContents ./rust.lua;
+      }
     ];
   };
 }

home/common/nvim/init.lua

@@ -152,5 +152,5 @@ vim.keymap.set("n", "K", function()
 vim.keymap.set("n", "<Leader>ub", function()
   vim.o.background = (vim.o.background == "light" and "dark" or "light")
   end, opts("Toggle dark/light background"))
-
+vim.keymap.set("n", "<Leader>uh", "<cmd>InlayHintsToggle<cr>", opts("Toggle inlay hints"))
 

home/common/nvim/lsp.lua

@@ -1,12 +1,27 @@
 local lspconfig = require("lspconfig")
 local servers = {
   cssls = {},
-  gopls = {},
   html = {},
   jsonls = {},
   superhtml = {},
   ts_ls = {},
 
+  gopls = {
+    settings = {
+      gopls = {
+        hints = {
+          rangeVariableTypes = true,
+          parameterNames = true,
+          constantValues = true,
+          assignVariableTypes = true,
+          compositeLiteralFields = true,
+          compositeLiteralTypes = true,
+          functionTypeParameters = true,
+        },
+      },
+    },
+  },
+
   harper_ls = {
     filetypes = {
       "asciidoc", "c", "gitcommit", "go", "html", "javascript", "just", "lua", "markdown",
@@ -22,6 +37,7 @@ local servers = {
           path = vim.split(package.path, ";"),
         },
         diagnostics = { globals = { "vim", "hs" } },
+        hint = { enable = true },
         workspace = {
           library = {
             [vim.fn.expand("$VIMRUNTIME/lua")] = true,

home/common/nvim/rust.lua

@@ -0,0 +1,40 @@
+vim.g.rustaceanvim = {
+  server = {
+    settings = {
+      ["rust-analyzer"] = {
+        inlayHints = {
+          bindingModeHints = {
+            enable = false,
+          },
+          chainingHints = {
+            enable = true,
+          },
+          closingBraceHints = {
+            enable = true,
+            minLines = 25,
+          },
+          closureReturnTypeHints = {
+            enable = "never",
+          },
+          lifetimeElisionHints = {
+            enable = "never",
+            useParameterNames = false,
+          },
+          maxLength = 25,
+          parameterHints = {
+            enable = true,
+          },
+          reborrowHints = {
+            enable = "never",
+          },
+          renderColons = true,
+          typeHints = {
+            enable = true,
+            hideClosureInitialization = false,
+            hideNamedConstructor = false,
+          },
+        },
+      },
+    },
+  },
+}

home/common/nvim/treesitter.nix

@@ -13,6 +13,7 @@
     plugins = with pkgs.vimPlugins; [
       ts-comments-nvim
       nvim-ts-context-commentstring
+      playground
 
       {
         plugin = nvim-treesitter-context;