Software / code / prosody
Changeset
4418:70b5e533325d
util.debug: Fix potential traceback
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Sat, 19 Nov 2011 22:40:30 +0000 |
| parents | 4417:33c149394dcb |
| children | 4419:b1e49cc314cb 4424:1cbf3744300c |
| files | util/debug.lua |
| diffstat | 1 files changed, 6 insertions(+), 4 deletions(-) [+] |
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--- a/util/debug.lua Sat Nov 19 21:12:23 2011 +0500 +++ b/util/debug.lua Sat Nov 19 22:40:30 2011 +0000 @@ -20,10 +20,12 @@ 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
