prosody
bbdaa770b955
util/bit53.lua

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util/bit53.lua @ 13175:bbdaa770b955

util.cache: Pass cache itself to eviction callback Simplifies access to the cache without moving code around a lot given the currently common pattern of local some_cache = cache.new(size, function(k,v) end)
author Kim Alvefur <zash@zash.se>
date Fri, 30 Jun 2023 22:01:55 +0200 (21 months ago)
parent 12365:af02b033bd7f
child 13449:9912baa541c0
line wrap: on
line source
-- Only the operators needed by net.websocket.frames are provided at this point
return {
	band   = function (a, b, ...)
		local ret = a & b;
		if ... then
			for i = 1, select("#", ...) do
				ret = ret & (select(i, ...));
			end
		end
		return ret;
	end;
	bor    = function (a, b, ...)
		local ret = a | b;
		if ... then
			for i = 1, select("#", ...) do
				ret = ret | (select(i, ...));
			end
		end
		return ret;
	end;
	bxor   = function (a, b, ...)
		local ret = a ~ b;
		if ... then
			for i = 1, select("#", ...) do
				ret = ret ~ (select(i, ...));
			end
		end
		return ret;
	end;
	rshift = function (a, n) return a >> n end;
	lshift = function (a, n) return a << n end;
};