prosody
0f4feaf9ca64
util/bitcompat.lua

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util/bitcompat.lua @ 12573:0f4feaf9ca64

util: Remove various Lua 5.1 compatibility hacks Part of #1600
author Kim Alvefur <zash@zash.se>
date Sat, 02 Jul 2022 17:31:14 +0200
parent 10241:48f7cda4174d
child 12975:d10957394a3c
comparison
equal deleted inserted replaced
12572:35a9ed6b7896 12573:0f4feaf9ca64
3 -- First try the bit32 lib 3 -- First try the bit32 lib
4 -- Lua 5.3 has it with compat enabled 4 -- Lua 5.3 has it with compat enabled
5 -- Lua 5.2 has it by default 5 -- Lua 5.2 has it by default
6 if _G.bit32 then 6 if _G.bit32 then
7 return _G.bit32; 7 return _G.bit32;
8 else
9 -- Lua 5.1 may have it as a standalone module that can be installed
10 local ok, bitop = pcall(require, "bit32")
11 if ok then
12 return bitop;
13 end
14 end 8 end
15 9
16 do 10 do
17 -- Lua 5.3 and 5.4 would be able to use native infix operators 11 -- Lua 5.3 and 5.4 would be able to use native infix operators
18 local ok, bitop = pcall(require, "util.bit53") 12 local ok, bitop = pcall(require, "util.bit53")
19 if ok then 13 if ok then
20 return bitop; 14 return bitop;
21 end 15 end
22 end 16 end
23 17
24 do
25 -- Lastly, try the LuaJIT bitop library
26 local ok, bitop = pcall(require, "bit")
27 if ok then
28 return bitop;
29 end
30 end
31
32 error "No bit module found. See https://prosody.im/doc/depends#bitop"; 18 error "No bit module found. See https://prosody.im/doc/depends#bitop";