Files
action-hints.nvim/lua/statusline-action-hints/init.lua
2023-08-11 23:55:58 +01:00

103 lines
2.2 KiB
Lua

local M = {}
M.config = {
definition_identifier = "gd",
template = "%s ref:%s",
}
M.references_available = false
M.reference_count = 0
M.definition_available = false
local function debounce(func, delay)
local timer_id = nil
return function(...)
if timer_id then
vim.fn.timer_stop(timer_id)
end
local args = { ... }
timer_id = vim.fn.timer_start(delay, function()
func(unpack(args))
end)
end
end
local function get_current_context()
local bufnr = vim.api.nvim_get_current_buf()
local cursor = vim.api.nvim_win_get_cursor(0)
local bufname = vim.api.nvim_buf_get_name(bufnr)
return bufnr, { line = cursor[1] - 1, character = cursor[2] }, bufname
end
local function lsp_request(method, params, callback)
local bufnr, position, uri = get_current_context()
params.textDocument = { uri = uri }
params.position = position
vim.lsp.buf_request(bufnr, method, params, callback)
end
local function references()
lsp_request("textDocument/references", {
context = { includeDeclaration = true },
}, function(err, result, _, _)
if err then
error(tostring(err))
end
if not result or vim.tbl_count(result) == 0 then
M.references_available = false
M.reference_count = 0
return false
end
M.references_available = true
M.reference_count = vim.tbl_count(result) - 1
return true
end)
end
local function definition()
lsp_request("textDocument/definition", {}, function(err, result, _, _)
if err then
error(tostring(err))
end
if not result or vim.tbl_count(result) == 0 then
M.definition_available = false
return false
end
M.definition_available = true
return true
end)
end
local debounced_references = debounce(references, 100)
local debounced_definition = debounce(definition, 100)
M.statusline = function()
debounced_references()
debounced_definition()
local definition_status = ""
if M.definition_available then
definition_status = M.config.definition_identifier
end
return string.format(M.config.template, definition_status, M.reference_count)
end
M.setup = function(options)
if options == nil then
options = {}
end
-- merge user supplied options with defaults..
for k, v in pairs(options) do
M.config[k] = v
end
end
return M