https://www.w3.org/Bugs/Public/show_bug.cgi?id=17026 Summary: [FO30] has-children() equivalence in failure cases Product: XPath / XQuery / XSLT Version: Last Call drafts Platform: PC OS/Version: All Status: NEW Severity: normal Priority: P2 Component: Functions and Operators 3.0 AssignedTo: mike@saxonica.com ReportedBy: mike@saxonica.com QAContact: public-qt-comments@w3.org The specification for has-children() states: The result of the function call fn:has-children($node) is defined to be the same as the result of the expression fn:exists($node/child::node()). However, this is only true in success cases. Examples of differences: (a) if $node is not a node, the error code is XPTY0004 rather than XPTY0020 (b) if $node is a sequence of two nodes, the result is a type error rather than true or false. So the implication that a call on has-children can be statically rewritten in this form is incorrect. -- Configure bugmail: https://www.w3.org/Bugs/Public/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug.Received on Thursday, 10 May 2012 11:14:11 UTC
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