go.nvim/lua/go/godoc.lua

151 lines
3.7 KiB
Lua

local utils = require('go.utils')
local log = utils.log
local gopls = require('go.gopls')
local help_items = {}
local vfn = vim.fn
local m = {}
function m.help_complete(_, _, _)
if #help_items < 1 then
local doc = vfn.systemlist('go help')
if vim.v.shell_error ~= 0 then
vim.notify(
string.format('failed to run go help %d', vim.v.shell_error),
vim.log.levels.ERROR
)
return
end
for _, line in ipairs(doc) do
local m1 = string.match(line, '^%s+([%w-]+)')
if m1 ~= nil and m1 ~= 'go' then
table.insert(help_items, m1)
end
end
table.sort(help_items)
end
return help_items
end
local function match_doc_flag(lead)
local doc_flags = { '-all', '-c', '-cmd', '-short', '-src', '-u' }
local items = {}
local p = string.format('^%s', lead)
for _, f in ipairs(doc_flags) do
local k = string.match(f, p)
log(k, f, p)
if k then
table.insert(items, f)
end
end
table.sort(items)
log(items)
return items or {}
end
local function match_partial_item_name(pkg, pattern)
local cmd = string.format('go doc %s', pkg)
local doc = vfn.systemlist(cmd)
if vim.v.shell_error ~= 0 then
utils.warn('go doc failed', vim.inspect(doc))
return
end
local items = {}
for _, _type in ipairs({ 'var', 'const', 'func', 'type' }) do
local patterns = {
string.format('^%%s*%s (%s%%w+)', _type, pattern),
string.format('^%%s*%s %%(.-%%) (%s%%w+)', _type, pattern),
}
log(patterns)
for _, line in ipairs(doc) do
local k
for _, pat in ipairs(patterns) do
k = string.match(line, pat)
if k then
log(k)
table.insert(items, k)
break
end
end
end
end
table.sort(items)
log(items)
return items
end
function m.doc_complete(_, cmdline, _)
local words = vim.split(cmdline, '%s+')
if string.match(words[#words], '^-') then
log(words)
return match_doc_flag(words[#words])
end
if #words > 2 and string.match(words[#words - 1], '^-') == nil then
local pkg = words[#words - 1]
local item = words[#words]
return match_partial_item_name(pkg, item)
elseif #words > 1 and string.match(words[#words], '^[^-].+%..*') ~= nil then
local pkg, item, method = unpack(vim.split(words[#words], '%.'))
if method then
pkg = string.format('%s.%s', pkg, item)
item = method
end
local comps = match_partial_item_name(pkg, item)
for i, comp in ipairs(comps or {}) do
comps[i] = string.format('%s.%s', pkg, comp)
end
return comps or {}
elseif #words >= 1 and not string.match(words[#words], '^-') then
local pkgs = gopls.list_pkgs()
if pkgs then
local match = {}
if #words > 1 and #words[#words] > 0 then
for _, value in ipairs(pkgs) do
if string.match(value, words[#words]) then
table.insert(match, value)
end
end
else
match = pkgs
end
log(match)
return match or {}
end
end
return ''
end
m.run = function(kind, func)
if func == nil then
func = kind
kind = nil
end
log(kind, func)
if vim.fn.empty(func) == 1 then
return vim.lsp.buf.hover()
end
-- vim.validate({ func = { func, "table" } })
local setup = { 'go', 'doc', kind, unpack(func or {}) }
--
return vfn.jobstart(setup, {
on_stdout = function(_, data, _)
log(data)
data = utils.handle_job_data(data)
if not data then
return
end
local close_events = { 'CursorMoved', 'CursorMovedI', 'BufHidden', 'InsertCharPre' }
local config = { close_events = close_events, focusable = true, border = 'single' }
vim.lsp.util.open_floating_preview(data, 'go', config)
end,
}),
setup
end
return m