[Exist-development] default context in functions

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

wondering if we are a little lax with how default context is
accessible to functions

the following xquery is fine

--------------------------------------------------------------------

declare function local:test($arg){
name($arg)
};

let $a := <test><a></a><b/></test>
return
$a/local:test(.)

--------------------------------------------------------------------

and indeed runs properly

but what I found interesting was the following xquery

--------------------------------------------------------------------

declare function local:test(){
name()
};

let $a := <test><a></a><b/></test>
return
$a/local:test()

--------------------------------------------------------------------

this also runs, which maybe a little strange.

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.

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}.

or am I missing something ?

thx, James Fuller