Problem:
Given that `vim.snippet.expand()` sets temporary `<tab>`/`<s-tab>`
keymaps there is no way to build "smart-tab" functionality where `<tab>`
chooses the next completion candidate if the popup menu is visible.
Solution:
Set the keymap permanent in `_defaults`.
The downside of this approach is that users of multiple snippet engine's
need to adapt their keymaps to handle all their engines that are in use.
For example:
vim.keymap.set({ 'i', 's' }, "<Tab>", function()
if foreign_snippet.active() then
return "<Cmd>lua require('foreign_snippet').jump()<CR>"
elseif vim.snippet.active({ direction = 1 }) then
return "<Cmd>lua vim.snippet.jump(1)<CR>"
else
return key
end
end, { expr = true })
Upside is that using `vim.keymap.set` to override keymaps is a well
established pattern and `vim.snippet.expand` calls made by nvim itself
or plugins have working keymaps out of the box.
Co-authored-by: Maria José Solano <majosolano99@gmail.com>
Reverts parts of https://github.com/neovim/neovim/pull/27674
LSP snippets typically do include tabs or spaces to add extra
indentation and don't rely on the client using `autoindent`
functionality.
For example:
public static void main(String[] args) {\n\t${0}\n}
Notice the `\t` after `{\n`
Adding spaces or tabs independent of that breaks snippets for languages
like Haskell where you can have snippets like:
${1:name} :: ${2}\n${1:name} ${3}= ${0:undefined}
To generate:
name ::
name = undefined
Specifically, functions that are run in the context of the test runner
are put in module `test/testutil.lua` while the functions that are run
in the context of the test session are put in
`test/functional/testnvim.lua`.
Closes https://github.com/neovim/neovim/issues/27004.
