From e4e341832d609f13857795a62cec861850d80b7a Mon Sep 17 00:00:00 2001
From: kikito <kikito@gmail.com>
Date: Mon, 29 Oct 2012 20:32:23 +0100
Subject: [PATCH] made scopecache weak. Fixes #7

---
 cron.lua           | 4 ++--
 spec/cron_spec.lua | 3 ---
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/cron.lua b/cron.lua
index de0a823..0dc2fa9 100644
--- a/cron.lua
+++ b/cron.lua
@@ -109,7 +109,7 @@ local function storeScopeInCache(scope)
   local node = scopeCacheRoot
   for i=1, scope.len do
     local tag = scope.tags[i]
-    node.children[tag] = node.children[tag] or { children={} }
+    node.children[tag] = node.children[tag] or { children=setmetatable({},{__mode='k'}) }
     node = node.children[tag]
   end
   node.scope = scope
@@ -165,7 +165,7 @@ end
 function cron.reset()
   entries = {}
   taggedEntries = setmetatable({}, {__mode='k'})
-  scopeCacheRoot = { children = {}}
+  scopeCacheRoot = { children = setmetatable({}, {__mode='k'}) }
 end
 
 -- tagged functions
diff --git a/spec/cron_spec.lua b/spec/cron_spec.lua
index 98eeb49..9b7287e 100644
--- a/spec/cron_spec.lua
+++ b/spec/cron_spec.lua
@@ -159,8 +159,5 @@ describe( 'cron', function()
       assert_equal(counter, 4)
     end)
 
-    it('caches scopes', function()
-      assert_equal(cron.tagged('hello', 'world'), cron.tagged('hello', 'world'))
-    end)
   end)
 end)