Bug #3148: xsl:evaluate doesn't support use of user-defined functions - SaxonJS - Saxonica Developer Community

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Bug #3148

closed

xsl:evaluate doesn't support use of user-defined functions

Added by John Lumley almost 8 years ago. Updated over 7 years ago.

Status:

Closed

Priority:

Normal

Assignee:

John Lumley

Category:

Sprint/Milestone:

Start date:

2017-02-27

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

within the static context for xsl:evaluate should be

All user-defined functions present in the containing package provided their visibility is not hidden or private;

Currently this is not the case for Saxon-JS and will be somewhat expensive to implement, requiring Expr.evaluate() to search through the package SEF it is called from to find the function definitions, generate signatures and pass through on each invocation. It may be possible to arrange a cache.

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Updated by Michael Kay almost 8 years ago

Surely this simply requires the XPath processor to have access to context.fixed.userFunctions, which transform.js has already built and which is present in the context object passed to evaluateXDM?

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Updated by John Lumley almost 8 years ago

Fair enough... context.fixed.userFunctions gives a map of fnName#arity -> body (action) trees. Parent of the body gets the function tree and from their arg children with name and type can be determined.

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