XsltSettings.EnableDocumentFunction

This is a short followup for XslCompiledTransform. It accepts a new optional argument XsltSettings. It is an enum that holds two switches:

• EnableDocumentFunction
• EnableScript

There is a reason why document("") could be optional. When document() function receives an empty string argument, it returns a node-set that contains the stylesheet itself. That however means, XSLT engine must preserve reference to the input stylesheet document (XPathNavigator). There was a bug report to MS feedback that document() could not be resolved (I once refered to it). So this options looks like Microsoft's response to developers' need.

I thought that not keeping source document is a good idea, so I tried to remove all the references to XPathNavigator clones in our XslTransform (except for document() function). After some hacking, I wrote a simple test which assures that XslTransform does not have reference to the document:

So I tried it under Windows:

$ csc test.cs /nologo /nowarn:618
$ mono test.exe
load : False
transform : False
$ ./test
load : True
transform : False

Hmm... I wonder if I missed something.

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