nixos/lua-lsp/script/core/diagnostics/unused-vararg.lua

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local files = require 'files'
local guide = require 'parser.guide'
local define = require 'proto.define'
local lang = require 'language'
local vm = require 'vm'
return function (uri, callback)
local ast = files.getState(uri)
if not ast then
return
end
if vm.isMetaFile(uri) then
return
end
guide.eachSourceType(ast.ast, 'function', function (source)
if #source == 0 then
return
end
local args = source.args
if not args then
return
end
for _, arg in ipairs(args) do
if arg.type == '...' then
if not arg.ref then
callback {
start = arg.start,
finish = arg.finish,
tags = { define.DiagnosticTag.Unnecessary },
message = lang.script.DIAG_UNUSED_VARARG,
}
end
end
end
end)
end