nvim: use lsp.signature_help() instead of extra plugin

files/nvim/.config/nvim/lua/mappings.lua

@@ -34,6 +34,8 @@ map("n", "<leader>ld", "<cmd> Telescope lsp_definitions<CR>", default_opts) -- S
 map("n", "<leader>le", "<cmd> Telescope diagnostics<CR>", default_opts) -- Show errors and warnings
 map("n", "<leader>lf", "<cmd> lua vim.lsp.buf.format {async = true }<CR>", default_opts) -- Format buffer with LSP
 map("n", "<leader>lh", "<cmd> lua vim.lsp.buf.hover()<CR>", default_opts) -- Show info of symbol (double tap to enter)
+map("i", "<C-l>", "<cmd> lua vim.lsp.buf.signature_help()<CR>", default_opts) -- Show function signature
+map("n", "<C-l>", "<cmd> lua vim.lsp.buf.signature_help()<CR>", default_opts) -- Show function signature
 map("n", "<leader>ln", "<cmd> lua vim.lsp.buf.rename()<CR>", default_opts) -- Rename LSP symbol
 map("n", "<leader>lr", "<cmd> Telescope lsp_references<CR>", default_opts) -- Show all LSP references
 map("n", "<leader>ls", "<cmd> Telescope lsp_workspace_symbols<CR>", default_opts) -- Search for LSP symbols
@@ -72,8 +74,7 @@ wk.register({
 })
 
 -- Telescope + telescope-symbols
-map("n", "<leader>ie", "<cmd> lua require'telescope.builtin'.symbols{ sources = { 'emoji', 'gitmoji' } }<CR>",
-  default_opts) -- Show emojis
+map("n", "<leader>ie", "<cmd> lua require'telescope.builtin'.symbols{ sources = { 'emoji', 'gitmoji' } }<CR>", default_opts) -- Show emojis
 map("n", "<leader>im", "<cmd> lua require'telescope.builtin'.symbols{ sources = { 'julia' } }<CR>", default_opts) -- Show math symbols
 map("n", "<leader>in", "<cmd> lua require'telescope.builtin'.symbols{ sources = { 'nerd' } }<CR>", default_opts) -- Show nerd icons
 wk.register({

files/nvim/.config/nvim/lua/plugins/init.lua

@@ -82,7 +82,6 @@ return require('packer').startup(function(use)
     requires = {
       "williamboman/nvim-lsp-installer", -- Easy to install LSP servers
       "simrat39/rust-tools.nvim", -- Cooler LSP stuff for Rust
-      "ray-x/lsp_signature.nvim" --  show function signatures, when typing
     },
     config = function() require('plugins.nvim-lspconfig-conf') end,
   })

files/nvim/.config/nvim/lua/plugins/nvim-lspconfig-conf.lua

@@ -25,10 +25,6 @@ local sig = require('lsp_signature') -- function signatures
 
 function my_attach (client, bufnr)
   navic.attach(client, bufnr) -- breadcrumbs
-  sig.on_attach({
-    floating_window = false,
-    hint_prefix = ""
-  }, bufnr) -- function signatures
 end
 
 -- Normal LSPs

files/nvim/.config/nvim/lua/plugins/nvim-tree-conf.lua

@@ -1 +0,0 @@
-require("nvim-tree").setup()