Clap proj_tags does not seem to work

[rbhanot4739]

Environment (please complete the following information):

• OS: MacOs catalina 10.15.6
• NeoVim version: 0.5.0-4496628
• vim-clap version: latest
• Have you reproduced with a minimal vimrc: Yes
• Have you updated to the latest plugin version: Yes
• Have you upgraded to/compiled the latest Rust binary: ??? Yes

Describe the bug
Running :Clap proj_tags does not seem to work at all, it opens the empty floating window with no tags listed and as soon as you start typing following error is thrown.

vim-clap: on_event:['thread ''main'' panicked at ''byte index 97 is not a char boundary; it is inside ''е'' (bytes 96...src/libcore/str/mod.rs:1920:47', 'note: run with RUST_BACKTRACE=1 environment variable to display a backtrace', '']

Clap debug

            has cargo: 1
            has maple: /Users/rbhanot/.config/nvim/plugged/vim-clap/target/release/maple
           maple info: version 0.1.19, built for x86_64-apple-darwin by rustc 1.45.0 (5c1f21c3b 2020-07-13).

         has +python3: 1
has py dynamic module: 1
     Current FileType: python
Third Party Providers: []
       Global Options:
    let g:clap#autoload_dir = '/Users/rbhanot/.config/nvim/plugged/vim-clap/autoload'
    let g:clap#provider_alias = {'gfiles': 'git_files', 'hist:': 'command_history', 'hist/': 'search_history'}
    let g:clap_cache_directory = '/Users/rbhanot/.cache/vim/clap'
    let g:clap_disable_bottom_top = 0
    let g:clap_disable_matches_indicator = v:false
    let g:clap_disable_optional_async = v:false
    let g:clap_disable_run_rooter = v:false
    let g:clap_enable_icon = 1
    let g:clap_forerunner_status_sign = {'done': '•', 'running': '!', 'using_cache': '*'}
    let g:clap_insert_mode_only = v:true
    let g:clap_layout = {'col': '17%', 'row': '33%', 'width': '67%', 'height': '33%'}
    let g:clap_multi_selection_warning_silent = 0
    let g:clap_no_matches_msg = 'NO MATCHES FOUND'
    let g:clap_open_action = {'ctrl-v': 'vsplit', 'ctrl-x': 'split', 'ctrl-t': 'tab split'}
    let g:clap_popup_border = 'rounded'
    let g:clap_preview_size = 5
    let g:clap_providers_relaunch_code = '@@'
    let g:clap_search_box_border_style = 'nil'
    let g:clap_search_box_border_symbols = {'nil': ['', ''], 'curve': ['', ''], 'arrow': ['', '']}
    let g:clap_session_dir = '/Users/rbhanot/.cache/vim/sessions'
  Provider Variables:
    let g:clap_provider_coc_blink = [2, 100]
    let g:clap_provider_grep_blink = [2, 100]
    let g:clap_provider_grep_delay = 100
    let g:clap_provider_yanks_min_len = 4

To Reproduce
Steps to reproduce the behavior:

1. Create the minimal vimrc min.vim:

set nocompatible
set runtimepath^=/path/to/vim-clap
syntax on
filetype plugin indent on

2. Start neovim with command: vim -u min.vim

3. Type :Clap proj_tags

Expected behavior
The tags for the project should be displayed in the floating window.

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[liuchengxu]

Just as the error message said, the Rust binary paniced. It would be helpful you can provide the exact files to reproduce this error.

[rbhanot4739]

Just as the error message said, the Rust binary paniced. It would be helpful you can provide the exact files to reproduce this error.

Which exact files ?

[liuchengxu]

The source files you run :Clap proj_tags. Without these source files, I can't reproduce.

[rbhanot4739]

The source files can be any file inside a project, for my case its a python file from a project.

[liuchengxu]

The source files can be any file inside a project, for my case its a python file from a project.

Nope. I never have this issue. You must provide the source files to reproduce, otherwise I can't help.

[rbhanot4739]

Its happening in every project, not just one, so I believe it is irrespective of the source files.

[liuchengxu]

Can not reproduce.

[rbhanot4739]

Here is a simple helloworld script from my project where i get the error.

fab = "hello"
baz = "world"


print(fab + baz)

I still don't understand how does source file has any thing to do here, since it is happening for every project. :Clap proj_tags simply shows a empty floating window and when i start to type, the error appears.

[liuchengxu]

:Clap proj_tags works great for me. If you can't provide a way to help reproduce this issue, I can't help more. It's very common that some issues happen in some particular cases.

[rbhanot4739]

The error message clearly states the rust file where the error occures, src/libcore/str/mod.rs:1920:47. Further there is no way for me to reproduce this since it is not happening for some particular case/project. No matter which project I open, same issue occures for me. There is some isssue with rust itself here but since I am not familier with rust I can't debug it anymore.

vim-clap: on_event:['thread ''main'' panicked at ''byte index 97 is not a char boundary; it is inside ''е'' (bytes 96...src/libcore/str/mod.rs:1920:47', 'note: run with RUST_BACKTRACE=1 environment variable to display a backtrace', '']

[cj]

I have a similar issue Clap tags works just fine, but Clap proj_tags is just empty, typing does not throw an error for me.

Please let me know the best way to get you any debug info you need!

P.S. I am using maple from doing call clap#installer#download_binary()

[liuchengxu]

@cj You can try let g:clap_enable_debug = v:true to see if there are any errors.

[mrded]

I'm also having the same issues.

MacOS Catalina 10.15.6 (19G2021), NVIM v0.4.3, Ctags 5.8, cargo 1.46.0, maple 0.1.20

with a debugging enabled I see what my ctags don't support json.

How can I install ctags with json support? It isn't clean from the docs.

[liuchengxu]

@mrded vim-clap has declared the ctags JSON requirement for proj_tags. Refer to https://github.com/liuchengxu/vista.vim#compile-ctags-with-json-format-support for reinstalling ctags.

[liuchengxu]

I have added the ctags JSON output feature check, you'll see an error message if your ctags is not compiled with JSON support.

[mrded]

Thanks. I think it will also make sense to update vim-clap docs, as instructions on how to install ctags are in a different project.