Bug #3161: || operator in dynamic XPath does no type checking - SaxonJS - Saxonica Developer Community

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Bug #3161

closed

|| operator in dynamic XPath does no type checking

Added by John Lumley over 7 years ago. Updated over 7 years ago.

Status:

Closed

Priority:

Normal

Assignee:

John Lumley

Category:

Sprint/Milestone:

Start date:

2017-03-13

Due date:

% Done:

100%

Estimated time:

Applies to JS Branch:

1.0

Fix Committed on JS Branch:

1.0

Fixed in JS Release:

Saxon-JS 1.0.1

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Description

In https://saxonica.plan.io/boards/5/topics/6712 Martin Honnen discovered cities/city!(@country || ', ' || @name) produced a mixture of nodes and strings.

Investigation shows that the dynamic compilation of the || operator merely creates a concat() call around the (compiled) arguments, with no type checking/coercion. (A specific concat() function call does carry out type checking.)