luatz/timetable: Coercion doesn't work ==> lua relational operators only work on...

diff --git a/luatz/timetable.lua b/luatz/timetable.lua
index e1649a0239517c4c15bb31ca3b3191216110be1e..3bb768911b627c9974f15f53b8d46c8b02080b4a 100644 (file)
--- a/luatz/timetable.lua
+++ b/luatz/timetable.lua
@@ -143,23 +143,14 @@ function timetable_methods:rfc_3339 ( )
        return strformat ( "%04u-%02u-%02uT%02u:%02u:%06.3f" , self:unpack ( ) )
 end
 
-local timetable_mt
-
-local function coerce_arg ( t )
-       if getmetatable ( t ) == timetable_mt then
-               return t:timestamp ( )
-       end
-       return t
-end
-
-timetable_mt = {
+local timetable_mt = {
        __index    = timetable_methods ;
        __tostring = timetable_methods.rfc_3339 ;
        __eq = function ( a , b )
-               return coerce_arg ( a ) == coerce_arg ( b )
+               return a:timestamp ( ) == b:timestamp ( )
        end ;
        __lt = function ( a , b )
-               return coerce_arg ( a ) < coerce_arg ( b )
+               return a:timestamp ( ) < b:timestamp ( )
        end ;
 }