Invalid 'col': out of range

[software-artificer]

Make sure you have done the following

• Updated to the latest version of blink.cmp
• Searched for existing issues and documentation (try <C-k> on https://cmp.saghen.dev)

Bug Description

👋🏻 Getting issues using the ghost text in neovim 0.12.2, was previously working just fine in 0.11.

Reproducible in the project using rust-analyzer LSP configured via rustaceanvim.

Typing something like:

self.rea|d()

where self.rea is the words I typed, | represents the current cursor position and d() is a virtual text, then rapidly deleting rea to get the text down to just self. throws the following error:

vim.schedule callback: ...cmp/lua/blink/cmp/completion/windows/ghost_text/init.lua:110: Invalid 'col': out of range
stack traceback:
        [C]: in function 'nvim_buf_set_extmark'
        ...cmp/lua/blink/cmp/completion/windows/ghost_text/init.lua:110: in function <...cmp/lua/blink/cmp/completion/windows/ghost_text/init.lua:67>

My assumption here is this is because the LSP response is a bit slow.
I noticed similar problems were fixed in the past, so wonder if I just hit yet another edge case here.

Sorry, the screen recording is broken for me right now, otherwise I would include a video as well.

Let me know if you need any additional information.

P.S. Love the project ❤️

Relevant configuration

I was able to reproduce the problem with the following minimal configuration using lazy.nvim:

require('lazy').setup({
  spec = {
    {
      'Saghen/blink.cmp',
      version = '^1.10',
      opts = { completion = { ghost_text = { enabled = true } } },
    },
    {
      'mrcjkb/rustaceanvim',
      version = '^9.0.4',
      lazy = false,
    },
  },
})

neovim version

NVIM v0.12.2 Build type: Release LuaJIT 2.1.1774638290

blink.cmp version

v1.10.2

[soifou]

Can't reproduce with the following repro and the mentioned nvim/blink.cmp version. Do you?

vim.env.LAZY_STDPATH = '.repro'
load(vim.fn.system('curl -s https://raw.githubusercontent.com/folke/lazy.nvim/main/bootstrap.lua'))()
require('lazy.minit').repro({
  spec = {
    {
      'Saghen/blink.cmp',
      version = '^1.10',
      opts = { completion = { ghost_text = { enabled = true } } },
    },
    {
      'mrcjkb/rustaceanvim',
      version = '^9.0.4',
      lazy = false,
    },
    {
      'mason-org/mason.nvim',
      build = ':MasonUpdate',
      opts = {},
    },
    {
      'mason-org/mason-lspconfig.nvim',
      dependencies = { 'mason-org/mason.nvim', 'neovim/nvim-lspconfig' },
      opts = {
        ensure_installed = { 'rust_analyzer' },
      },
    },
  },
})

And this test rust file

trait Readable {
    fn read(&self);
}

struct MyReader;

impl Readable for MyReader {
    fn read(&self) {
        println!("reading");
    }
}

impl MyReader {
    fn example(&self) {
        self.read(); // test on this line
    }
}

[software-artificer]

👋🏻 @soifou can't reproduce with that minimal example, but got a project where this is happening. On this branch, if I try to type read and then quickly erase it back on this line: https://github.com/software-artificer/savor/blob/e9303b314beb51e930d489efa5fe7a93207798cf/src/lib.rs#L674, it consistently breaks. Hope this helps.

[soifou]

Yes it helps, thank you for providing your repository!

The insert range returned by rust-analyzer is incorrect. You should report in their repository. As a workaround we could guard against invalid insert ranges and fallback to replace here.

{
  client_id = 1,
  client_name = "rust_analyzer",
  cursor_column = 14,
  detail = "fn(&mut self) -> Result<Bytes<{unknown}>, Error>",
  exact = false,
  filterText = "read",
  insertTextFormat = 2,
  kind = 2,
  label = "read()",
  labelDetails = {
    description = "fn(&mut self) -> Result<Bytes<{unknown}>, Error>"
  },
  preselect = true,
  score = 2,
  score_offset = 2,
  sortText = "7fffffed",
  source_id = "lsp",
  source_name = "LSP",
  textEdit = {
    insert = {
      ["end"] = {
        character = 14,
        line = 673
      },
      start = {
        character = 0,
        line = 674
      }
    },
    newText = "read()$0",
    replace = {
      ["end"] = {
        character = 0,
        line = 674
      },
      start = {
        character = 0,
        line = 674
      }
    }
  }
}