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--[[
POSIX library for Lua 5.1, 5.2, 5.3 & 5.4.
Copyright (C) 2014-2025 Gary V. Vaughan
]]
--[[--
Private argument checking helpers.
Undocumented internal helpers for strict environment wrapping.
@module posix._strict
]]
local setfenv = rawget(_G, 'setfenv') or function() end
local strict
do
local ok, _debug = pcall(require, 'std._debug.init')
if ok and _debug.strict then
ok, strict = pcall(require, 'std.strict.init')
end
if not ok then
strict = function(env)
return env
end
end
end
return function(env, level)
env = strict(env)
setfenv(1+(level or 1), env)
return env
end
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