gopher.nvim/lua/gopher/iferr.lua(view raw)
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---@toc_entry Iferr
---@tag gopher.nvim-iferr
---@text If you're using `iferr` tool, this module provides a way to automatically insert `if err != nil` check.
---@usage Execute `:GoIfErr` near any `err` variable to insert the check
local c = require "gopher.config"
local u = require "gopher._utils"
local r = require "gopher._utils.runner"
local log = require "gopher._utils.log"
local iferr = {}
-- That's Lua implementation: https://github.com/koron/iferr
function iferr.iferr()
local curb = vim.fn.wordcount().cursor_bytes
local pos = vim.fn.getcurpos()[2]
local fpath = vim.fn.expand "%"
local cmd = { c.commands.iferr, "-pos", curb }
if c.iferr.message ~= nil and type(c.iferr.message) == "string" then
table.insert(cmd, "-message")
table.insert(cmd, c.iferr.message)
end
local rs = r.sync(cmd, {
stdin = u.readfile_joined(fpath),
})
if rs.code ~= 0 then
if string.find(rs.stderr, "no functions at") then
u.notify("iferr: no function at " .. curb, vim.log.levels.ERROR)
log.warn("iferr: no function at " .. curb)
return
end
log.error("ferr: failed. output: " .. rs.stderr)
error("iferr failed: " .. rs.stderr)
end
vim.fn.append(pos, u.remove_empty_lines(vim.split(rs.stdout, "\n")))
vim.cmd [[silent normal! j=2j]]
vim.fn.setpos(".", pos)
end
return iferr
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