Completion mode in Neovim
⚓ Rust 📅 2025-09-24 👤 surdeus 👁️ 16Hi All,
Been having this problem for a while and just dealing with it but it bugs me so much.
I have hrsh7th/nvim-cmp running in my config and I have set the behaviour so that it inserts any completions it suggests instead of replacing. This works fine in every language... except rust unfortunately.
This is my configuration for CMP:
-- [[ Configure nvim-cmp ]]
-- See `:help cmp`
local cmp = require 'cmp'
local luasnip = require 'luasnip'
require('luasnip.loaders.from_vscode').lazy_load()
cmp.setup({
snippet = {
expand = function(args)
luasnip.lsp_expand(args.body)
end,
},
mapping = cmp.mapping.preset.insert {
['<C-n>'] = cmp.mapping.select_next_item(),
['<C-p>'] = cmp.mapping.select_prev_item(),
['<C-d>'] = cmp.mapping.scroll_docs(-4),
['<C-f>'] = cmp.mapping.scroll_docs(4),
['<C-Space>'] = cmp.mapping.complete {},
['<CR>'] = cmp.mapping.confirm {
behavior = cmp.ConfirmBehavior.Insert,
select = false, -- dont select first option unless i have manually selected it
},
['<Tab>'] = cmp.mapping(function(fallback)
if cmp.visible() then
cmp.select_next_item()
elseif luasnip.expand_or_locally_jumpable() then
luasnip.expand_or_jump()
else
fallback()
end
end, { 'i', 's' }),
['<S-Tab>'] = cmp.mapping(function(fallback)
if cmp.visible() then
cmp.select_prev_item()
elseif luasnip.locally_jumpable(-1) then
luasnip.jump(-1)
else
fallback()
end
end, { 'i', 's' }),
},
sources = {
{ name = 'nvim_lsp' },
{ name = 'luasnip' },
},
})
I also found a Reddit post with someone having the same problem.
Thanks ![]()
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