Ah, that makes sense. Scary. Thanks Danny. -W
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Danny Sokolsky Sent: Friday, June 17, 2011 1:05 PM To: General MarkLogic Developer Discussion Subject: Re: [MarkLogic Dev General] Why does xs:boolean(())=()? Looks like function mapping to me. You are running the function 0 times, so it returns empty. http://docs.marklogic.com/4.2doc/docapp.xqy#display.xqy?fname=http://pubs/4.2doc/xml/xquery/enhanced.xml%2355459 -Danny -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Will Thompson Sent: Friday, June 17, 2011 10:58 AM To: General MarkLogic Developer Discussion Subject: [MarkLogic Dev General] Why does xs:boolean(())=()? Can someone explain why passing this function () returns (), instead of an element or throwing an exception? declare function local:do-stuff( $bool as xs:boolean ) as element() { if ($bool) then <x/> else <y/> }; I see that xs:boolean(())=(), but it seems like this should either eval to false(), or the function should throw an exception since () isn't a boolean (or is it?). Otherwise, functions with booleans in their signatures can do weird things without warning if passed () erroneously. Thanks, Will _______________________________________________ General mailing list [email protected] http://developer.marklogic.com/mailman/listinfo/general _______________________________________________ General mailing list [email protected] http://developer.marklogic.com/mailman/listinfo/general _______________________________________________ General mailing list [email protected] http://developer.marklogic.com/mailman/listinfo/general
