Neovim Diagnostics API Reference

# Neovim Diagnostics API Reference

This document contains function definitions for Neovim's diagnostics Lua API.
Use this as a reference when working with diagnostics in Neovim Lua.

---

## diagnostic

vim.diagnostic APIs, types, and helpers.

```lua
function get_qf_id_for_title(title)
function __newindex(t, name, handler)
function __index(t, bufnr)
function callback()
function to_severity(severity)
function severity_predicate(severity)
function filter_by_severity(severity, diagnostics)
function count_sources(bufnr)
function prefix_source(diagnostics)
function reformat_diagnostics(format, diagnostics)
function enabled_value(option, namespace)
function resolve_optional_value(option, value, namespace, bufnr)
function get_resolved_options(opts, namespace, bufnr)
function make_highlight_map(base_name)
function diagnostic_lines(diagnostics)
function diagnostics_at_cursor(diagnostics)
function set_diagnostic_cache(namespace, bufnr, diagnostics)
function restore_extmarks(bufnr, last)
function save_extmarks(namespace, bufnr)
function on_lines(_, _, _, _, _, last)
function on_detach()
function severity_to_extmark_priority(priority, opts)
function make_augroup_key(namespace, bufnr)
function execute_scheduled_display(namespace, bufnr)
function schedule_display(namespace, bufnr, args)
function clear_scheduled_display(namespace, bufnr)
function get_diagnostics(bufnr, opts, clamp)
function __index(t, k)
function add(b, d)
function add_all_diags(buf, diags)
function set_list(loclist, opts)
function filter_highest(diagnostics)
function next_diagnostic(search_forward, opts)
function sort_diagnostics(a, b)
function is_next(d)
function goto_diagnostic(diagnostic, opts)
function M.config(opts, namespace)
function M.set(namespace, bufnr, diagnostics, opts)
function M.get_namespace(namespace)
function M.get_namespaces()
function M.get(bufnr, opts)
function M.count(bufnr, opts)
function M.get_prev(opts)
function M.get_prev_pos(opts)
function M.goto_prev(opts)
function M.get_next(opts)
function M.get_next_pos(opts)
function M.jump(opts)
function M.goto_next(opts)
function show(namespace, bufnr, diagnostics, opts)
function hide(namespace, bufnr)
function render_virtual_text(namespace, bufnr, diagnostics, opts)
function distance_between_cols(bufnr, lnum, start_col, end_col)
function render_virtual_lines(namespace, bufnr, diagnostics)
function format_virtual_lines(diagnostic)
function M._get_virt_text_chunks(line_diags, opts)
function M.hide(namespace, bufnr)
function M.is_enabled(filter)
function M.is_disabled(bufnr, namespace)
function M.show(namespace, bufnr, diagnostics, opts)
function M.open_float(opts, ...)
function M.reset(namespace, bufnr)
function M.setqflist(opts)
function M.setloclist(opts)
function M.disable(bufnr, namespace)
function M.enable(enable, filter)
function __index()
function M.match(str, pat, groups, severity_map, defaults)
function M.toqflist(diagnostics)
function M.fromqflist(list)
```