# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1448480981 -3600
# Node ID 0a31ec3193f027839afbb47dd31d8affc5e3b3a7
# Parent  f12deb882148ee6884196bd25b2c895536658ba5
util.cache: Make sure cache size is specified as an integer

diff -r f12deb882148 -r 0a31ec3193f0 util/cache.lua
--- a/util/cache.lua	Wed Nov 25 20:43:29 2015 +0100
+++ b/util/cache.lua	Wed Nov 25 20:49:41 2015 +0100
@@ -2,6 +2,8 @@
 local cache_mt = { __index = cache_methods };
 
 local function new(size)
+	size = assert(tonumber(size), "cache size must be a number");
+	size = math.floor(size);
 	assert(size > 0, "cache size must be greater than zero");
 	local data = {};
 	return setmetatable({ data = data, count = 0, size = size, head = nil, tail = nil }, cache_mt);