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local files = require 'files'
local vm = require 'vm'
local lang = require 'language'
local config = require 'config'
local guide = require 'parser.guide'
local await = require 'await'
local util = require 'utility'
local requireLike = {
['include'] = true,
['import'] = true,
['require'] = true,
['load'] = true,
}
---@async
return function (uri, callback)
local ast = files.getState(uri)
if not ast then
return
end
local dglobals = util.arrayToHash(config.get(uri, 'Lua.diagnostics.globals'))
local rspecial = config.get(uri, 'Lua.runtime.special')
local cache = {}
-- 遍历全局变量，检查所有没有 set 模式的全局变量
guide.eachSourceType(ast.ast, 'getglobal', function (src) ---@async
local key = src[1]
if not key then
return
end
if dglobals[key] then
return
end
if rspecial[key] then
return
end
local node = src.node
if node.tag ~= '_ENV' then
return
end
if cache[key] == nil then
cache[key] = vm.hasGlobalSets(uri, 'variable', key)
end
if cache[key] then
return
end
local message = lang.script('DIAG_UNDEF_GLOBAL', key)
if requireLike[key:lower()] then
message = ('%s(%s)'):format(message, lang.script('DIAG_REQUIRE_LIKE', key))
end
callback {
start = src.start,
finish = src.finish,
message = message,
}
end)
end
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