Re: [Exist-development] default context in functions

[James F. <jam...@ex...>]

courtesy Norm Walsh via twitter

paraphrasing: 'During eval of a fn, the context item, pos, size is
undefined, except where it is def by some expr inside the fn'

section 3.1.5 Function Calls in XQuery spec defines the correct
behavior for this.

so looks like we need to sort this out, we should probably also create
an xquery level unit test for this as well ... something I think we
should do whenever we apply a patch/bug/tweak that can be
characterized easily as expected result from xquery unit test.

J




On 17 July 2010 14:21, Dmitriy Shabanov <sha...@gm...> wrote:
> On Sat, 2010-07-17 at 13:31 +0200, James Fuller wrote:
>> I can appreciate that both functions ( e.g. local:test() and name() )
>> when given no argument use default context but can't find in xquery
>> related specs what the rules are for default context for a function
>> with no arguments.
>
> The function don't have context. You right, it should throw error. (BTW,
> I like the way it work now)
>
>> should this throw an [XPDY0002] evaluation of an expression relies on
>> some part of the dynamic context that has not been assigned a value:
>> {context item}.
>
> --
> Cheers,
>
> Dmitriy Shabanov
>
>