looping through kinds

[qwertzui11]

First of all thx for your great work! 😍

When I write code I sometimes know that I look for a specific class, method or function.
Sometimes I'm only interested into snippets.

So now, instead of a completion menu with 30 entries or more I'd like to cycle the different available kinds and reduce the completion list.

Eg triggering a second time nvim-cmp, I'd like to filter for classes. On another click functions and so on.

Is something like that available? If not, makes my idea sense?

I guess I could implement it using entry_filter, what do you think?

Thx for any feedback! 🎉

[iznoel]

was wondering the same thing, came out with the following snippet to re-trigger completion with an entry_filter set
really curious for alternative solutions to this, would much prefer a toggle

local cmp       = require('cmp')
local kinds     = require('cmp.types').lsp.CompletionItemKind

local filter_by_kind = function(_)
  local entries
  if not cmp.visible() then
    entries = vim.iter(kinds)
      :filter(function(item) return string.match(item, '[a-zA-Z]') end)
      :map(function(it, _) return it end)
      :map(string.lower)
      :totable()
  else
    entries = vim.fn.uniq(vim.iter(cmp.get_entries())
      :map(function(entry) return kinds[entry:get_kind()] end)
      :map(string.lower)
      :totable())
  end

  _G.SelectSourceKind = function(a, _, p)
    return vim.iter(entries)
      :filter(function(it) return string.sub(it, 1, p) == a end)
      :totable()
  end

  local confirm = function(chosen)
    local filter = function(entry, _) return string.lower(kinds[entry:get_kind()]) == chosen end
    cmp.complete({ config = { sources = { { name = 'nvim_lsp', entry_filter = filter } } } })
  end

  vim.ui.input({
    prompt     = "Select Completion Kind: ",
    completion = "customlist,v:lua.SelectSourceKind"
  }, confirm)
end

-- cmp.setup({ mapping = cmp.mapping.preset.insert({sources={ ["<c-s>"] = filter_by_kind }}) })