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authorMatthew Wild <mwild1@gmail.com>2011-11-19 22:40:30 +0000
committerMatthew Wild <mwild1@gmail.com>2011-11-19 22:40:30 +0000
commit0f23c0b4910410c37dbbd8303e62695083cd0e53 (patch)
treee127a4c05aace743955fa14e2bf98b4bd218c401
parent5785bdb7b6f7ef94c49b62c35f0af78acf4c9661 (diff)
downloadprosody-0f23c0b4910410c37dbbd8303e62695083cd0e53.tar.gz
prosody-0f23c0b4910410c37dbbd8303e62695083cd0e53.zip
util.debug: Fix potential traceback
-rw-r--r--util/debug.lua10
1 files changed, 6 insertions, 4 deletions
diff --git a/util/debug.lua b/util/debug.lua
index 0f0e24c0..22d02bf2 100644
--- a/util/debug.lua
+++ b/util/debug.lua
@@ -20,10 +20,12 @@ end
local function get_upvalues_table(func)
local upvalues = {};
- for upvalue_num = 1, math.huge do
- local name, value = debug.getupvalue(func, upvalue_num);
- if not name then break; end
- table.insert(upvalues, { name = name, value = value });
+ if func then
+ for upvalue_num = 1, math.huge do
+ local name, value = debug.getupvalue(func, upvalue_num);
+ if not name then break; end
+ table.insert(upvalues, { name = name, value = value });
+ end
end
return upvalues;
end