File

util/bitcompat.lua @ 13624:de902cc0d46c

util.bitcompat: Avoid potential noise from global metatable If this module is require'd from a plugin on a Lua version without the global bit32 library, it may trip a warning about accessing globals.
author Kim Alvefur <zash@zash.se>
date Wed, 15 Jan 2025 09:55:28 +0100
parent 12975:d10957394a3c
line wrap: on
line source

-- Compatibility layer for bitwise operations

-- First try the bit32 lib
-- Lua 5.3 has it with compat enabled
-- Lua 5.2 has it by default
if rawget(_G, "bit32") then
	return _G.bit32;
end

do
	-- Lua 5.3 and 5.4 would be able to use native infix operators
	local ok, bitop = pcall(require, "prosody.util.bit53")
	if ok then
		return bitop;
	end
end

error "No bit module found. See https://prosody.im/doc/depends#bitop";