diff options
Diffstat (limited to 'sql/item_func.cc')
| -rw-r--r-- | sql/item_func.cc | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sql/item_func.cc b/sql/item_func.cc index 1e61474f412..b741d62d3f9 100644 --- a/sql/item_func.cc +++ b/sql/item_func.cc @@ -360,6 +360,32 @@ bool Item_func::walk (Item_processor processor, byte *argument) return (this->*processor)(argument); } +void Item_func::traverse_cond(Item_cond_traverser traverser, + void *argument, + traverse_order order) +{ + if (arg_count) + { + Item **arg,**arg_end; + + switch (order) { + case(PREFIX): + (*traverser)(this, argument); + for (arg= args, arg_end= args+arg_count; arg != arg_end; arg++) + { + (*arg)->traverse_cond(traverser, argument, order); + } + break; + case (POSTFIX): + for (arg= args, arg_end= args+arg_count; arg != arg_end; arg++) + { + (*arg)->traverse_cond(traverser, argument, order); + } + (*traverser)(this, argument); + } + } +} + /* |