feat(neovim): set up nvim-treesitter

home/editors/neovim/treesitter.lua

@@ -0,0 +1,47 @@
+-- TODO install parsers declaratively instead of :TSInstall & :TSUpdate
+
+require'nvim-treesitter.configs'.setup {
+  ensure_installed = 'all',
+  highlight = {
+    enable = true,
+  },
+  indent = {
+    enable = true,
+  },
+  refactor = {
+    highlight_definitions = { enable = true },
+    highlight_current_scope = { enable = true },
+    navigation = {
+      enable = true,
+      keymaps = {
+        goto_definition_lsp_fallback = "gnd",
+        list_definitions = "gnD",
+        list_definitions_toc = "gO",
+        goto_next_usage = "<a-*>",
+        goto_previous_usage = "<a-#>",
+      },
+    },
+  },
+  incremental_selection = {
+    enable = true,
+    keymaps = {
+      init_selection = "<CR>",
+      scope_incremental = "<CR>",
+      node_incremental = "<TAB>",
+      node_decremental = "<S-TAB>",
+    },
+  },
+  textobjects = {
+    select = {
+      enable = true,
+      keymaps = {
+        ["af"] = "@function.outer",
+        ["if"] = "@function.inner",
+        ["ac"] = "@class.outer",
+        ["ic"] = "@class.inner",
+        ["aa"] = "@parameter.outer",
+        ["ia"] = "@parameter.inner",
+      },
+    },
+  },
+}