blob: 22b2e16bef3249d981f9a74edcb251e245724dd0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
local files = require 'files'
local guide = require 'parser.guide'
local define = require 'proto.define'
local lang = require 'language'
local function hasGet(loc)
if not loc.ref then
return false
end
for _, ref in ipairs(loc.ref) do
if ref.type == 'getlocal' then
if not ref.next then
return true
end
local nextType = ref.next.type
if nextType ~= 'setmethod'
and nextType ~= 'setfield'
and nextType ~= 'setindex' then
return true
end
end
end
return false
end
return function (uri, callback)
local ast = files.getAst(uri)
if not ast then
return
end
guide.eachSourceType(ast.ast, 'local', function (source)
local name = source[1]
if name == '_'
or name == '_ENV' then
return
end
if not hasGet(source) then
callback {
start = source.start,
finish = source.finish,
tags = { define.DiagnosticTag.Unnecessary },
message = lang.script('DIAG_UNUSED_LOCAL', name),
}
end
end)
end
|
