util/bitcompat.lua
author Kim Alvefur <zash@zash.se>
Sat, 02 Jul 2022 17:31:14 +0200
changeset 12577 0f4feaf9ca64
parent 10245 48f7cda4174d
child 12979 d10957394a3c
permissions -rw-r--r--
util: Remove various Lua 5.1 compatibility hacks Part of #1600

-- 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 _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, "util.bit53")
	if ok then
		return bitop;
	end
end

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