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Message #01968
[Bug 867262] Re: Ext func arg item seq can not be consumed 2 times
** Changed in: zorba
Status: Fix Released => Fix Committed
** Changed in: zorba
Milestone: None => 2.1
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https://bugs.launchpad.net/bugs/867262
Title:
Ext func arg item seq can not be consumed 2 times
Status in Zorba - The XQuery Processor:
Fix Committed
Bug description:
If one tried to consume an external function argument item sequence 2
times, the 2nd time no more item is returned: next returns false and
the item is NULL.
To reproduce, take any external module and in the "evaluate"
implementation of a function do the following (make sure that the
function receives a non non-empty sequence as the first parameter):
Item item;
Iterator_t iter = args[0]->getIterator();
iter->open();
iter->next(item);
iter->close();
// item is valid here
iter = args[0]->getIterator();
iter->open();
iter->next(item);
iter->close();
// item is NULL here
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