How to query the highlight name for a char

[ofzo]

In the rust project, the border of the popup is missing, but other projects are normal

rust project:

cpp project:

ts project:

[ofzo]

my neovim version is 0.10.0

[vollowx]

If the problem is only seen in Rust projects, then it should be related to the Rust-related plugin you're using. Try to figure this plugin and configure its hover/preview window border or something.

[ilias777]

This is not a catppuccin thing. This has to be set in the lsp-config file.

You have to do this:

In your lsp-config file put this code:

local border = {
    { '┌', 'FloatBorder' },
    { '─', 'FloatBorder' },
    { '┐', 'FloatBorder' },
    { '│', 'FloatBorder' },
    { '┘', 'FloatBorder' },
    { '─', 'FloatBorder' },
    { '└', 'FloatBorder' },
    { '│', 'FloatBorder' },
}

local handlers = {
    ['textDocument/hover'] = vim.lsp.with(vim.lsp.handlers.hover, { border = border }),
    ['textDocument/signatureHelp'] = vim.lsp.with(vim.lsp.handlers.signature_help, { border = border }),
}

And then in the rust server initialization this:

local lspconfig = require('lspconfig')


lspconfig.rust_analyzer.setup({
    handlers = handlers,
})

And then you have the border for the popup.