numbercolumn

You can add this component to the statuscolumn section of heirline opts.

require("heirline-components.all").component.numbercolumn()

On the left side of the image you can see it displays a numeric indicator of every line on the statuscolumn area.

Clicking a line number, will toggle a break point.

Available providers

These are the available providers for this component and its options.

numbercolumn = { padding = { right = 1 } },
condition = condition.numbercolumn_enabled,
on_click = {
  name = "line_click",
  callback = function()
    pcall(function() require("dap").toggle_breakpoint() end)
  end,
},