Unable to load toml file containing only [ftplugins]

[tgw314]

Problems summary

Unable to load toml file containing only [ftplugins]

Expected

Toml files containing only [ftplugins] should load successfully without issues.

Environment Information

• dpp-ext-toml version (SHA1): 3349787

• dpp.vim version (SHA1): Shougo/dpp.vim@b0542d3

• denops.vim version (SHA1): vim-denops/denops.vim@ea7370b

• deno version(deno -V output): deno 1.37.2

• OS: Arch Linux

• neovim/Vim :version output: NVIM v0.10.0-dev-1388+g7a6e27958a

Provide a minimal init.vim/vimrc without plugin managers (Required!)

let s:dpp_dir = stdpath("data") . '/dpp'
let $BASE_DIR = stdpath("config")

execute 'set runtimepath+=' . s:dpp_dir . '/repos/github.com/Shougo/dpp.vim'
execute 'set runtimepath+=' . s:dpp_dir . '/repos/github.com/Shougo/dpp-ext-toml'
execute 'set runtimepath+=' . s:dpp_dir . '/repos/github.com/vim-denops/denops.vim'

autocmd User DenopsReady call dpp#make_state(s:dpp_dir, expand('$BASE_DIR/config.ts'))

import {
  BaseConfig,
  ConfigReturn,
  ContextBuilder,
  Dpp,
  Plugin,
} from "https://deno.land/x/dpp_vim@v0.0.5/types.ts";
import { Denops, fn } from "https://deno.land/x/dpp_vim@v0.0.5/deps.ts";

export class Config extends BaseConfig {
  override async config(args: {
    denops: Denops;
    contextBuilder: ContextBuilder;
    basePath: string;
    dpp: Dpp;
  }): Promise<ConfigReturn> {
    const [context, options] = await args.contextBuilder.get(args.denops);

    await args.dpp.extAction(args.denops, context, options, "toml", "load", {
      path: await fn.expand(args.denops, "$BASE_DIR/dpp_ft.toml"),
      options: { lazy: false },
    });

    return {
      plugins: [] as Plugin[],
    };
  }
}

[ftplugins]
lua = '''
  setlocal tabstop=2
  setlocal shiftwidth=0
  setlocal expandtab
'''

How to reproduce the problem from neovim/Vim startup (Required!)

1. Place these files in $XDG_CONFIG_HOME/nvim-dpp-toml/
2. Run NVIM_APPNAME=nvim-dpp-toml nvim

Screenshot (if possible)

Upload the log messages by :redir and :message (if errored)

[denops] Failed to handle message 2,invoke,dispatch,dpp,makeState,/home/{username}/.local/share/nvim-dpp-toml/dpp,/home/{username}/.config/nvim-dpp-toml/config.ts,nvim TypeError: Cannot read properties of undefined (reading 'map')
[denops]     at Object.callback (file:///home/{username}/.local/share/nvim-dpp-toml/dpp/repos/github.com/Shougo/dpp-ext-toml/denops/@dpp-exts/toml.ts:41:38)
[denops]     at eventLoopTick (ext:core/01_core.js:183:11)
[denops]     at async Dpp.extAction (file:///home/{username}/.local/share/nvim-dpp-toml/dpp/repos/github.com/Shougo/dpp.vim/denops/dpp/dpp.ts:98:17)
[denops]     at async Config.config (file:///home/{username}/.config/nvim-dpp-toml/config.ts#128.640317:19:5)
[denops]     at async Object.makeState (file:///home/{username}/.local/share/nvim-dpp-toml/dpp/repos/github.com/Shougo/dpp.vim/denops/dpp/app.ts#1264.5072559999999:55:28)
[denops]     at async dispatch (https://deno.land/x/messagepack_rpc@v2.0.3/dispatcher.ts:36:12)
[denops]     at async Session.#dispatch (https://deno.land/x/messagepack_rpc@v2.0.3/session.ts:244:22)
[denops]     at async Session.#handleRequestMessage (https://deno.land/x/messagepack_rpc@v2.0.3/session.ts:271:33)

[Shougo]

OK. Fixed.