Autocomplete does not work for functions generated via macros in the same module/file.

[SergeyMosin]

Environment

• Elixir & Erlang versions (elixir --version): Erlang/OTP 26 [erts-14.2.5] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] [jit:ns]
• Elixir 1.15.7 (compiled with Erlang/OTP 26)
• VSCode ElixirLS version: 0.23.1
• Operating System Version: linux 6.8.0-40-generic, Ubuntu 22.04.5 LTS

Troubleshooting

• Restart your editor (which will restart ElixirLS) sometimes fixes issues
• Stop your editor, remove the entire .elixir_ls directory, then restart your editor

Description/Problem

Autocomplete does not work for functions generated via macros in the same module/file. However, it works when called from other modules/files.

Details

MyMacros.ex

defmodule MyMacros do
  defmacro enums_kv(kv) do
    Enum.map(kv, fn {k, v} ->
      quote do
        @spec unquote(k)() :: unquote(v)
        def unquote(k)(), do: unquote(v)
      end
    end)
  end

MyMod.ex (Autocomplete does NOT works when typing on or tw inside hello)

defmodule MyMod do
  require MyMacros
  MyMacros.enums_kv(one: 1, two: 2)
  # enums_kv(one: 1, two: 2) generates:
  #   def one, do: 1
  #   def two, do: 2

  def hello do
    one()
  end
end

MyOtherMod.ex (Autocomplete works when typing MyMod.t or MyMod.o inside hello)

defmodule MyOtherMod do
  def hello do
    MyMod.two()
  end
end

Demo/Video

video-demo.webm

[lukaszsamson]

This is the current limitation - only trivial use macros are expanded. This branch has change replacing the inference engine and rebuilding it on top of new Macro.Env API elixir-lsp/elixir-ls#1116. With that macro expansion is possible in more places and this scenario is working.