Re: Dokgen failing.

[Ola Bini <ola.bini@gmail.com>]

Martin Elwin wrote:
> On Fri, Jan 9, 2009 at 7:55 AM, Ola Bini <ola.bini@gmail.com> wrote:
>   
> > Thanks, I knew dokgen was currently bitrotted, but I haven't looked at it
> > yet. I will investigate based on your findings. Thanks.
> >     
>
> Saw the fix - thanks!
>
> By the way, you now have code:
>
> ((cell(:val) kind?("DefaultMethod")) ||
> (cell(:val) kind?("LexicalBlock")) ||
> (cell(:val) kind?("DefaultMacro")) ||
> (cell(:val) kind?("LexicalMacro")) ||
> (cell(:val) kind?("DefaultSyntax"))
>
> Is there any way currently of doing something in the spirit of:
>
> DefaultBehavior FlowControl in = macro("executes the arguments with
> the receiver as context and ground, and then returns the result of the
> last argument.
>
> call arguments map(evaluateOn(cell("@"))) last)
>
> which could give:
>
> cell(:val) in {
> kind?("DefaultMethod") ||
> kind?("LexicalBlock") ||
> kind?("DefaultMacro") ||
> kind?("LexicalMacro") ||
> kind?("DefaultSyntax")
> }
>
>   
Well, I would recommend doing this (which already works):

case(cell(:val) kind,
 or("DefaultMethod", "LexicalBlock",
     "DefaultMacro", "LexicalMacro", "DefaultSyntax"),
   ;; do something here)

of course, what you want can almost be done with "do", except that "do" 
doesn't return the last value.

Cheers

--
Ola Bini (http://olabini.com) 
JRuby Core Developer
Developer, ThoughtWorks Studios (http://studios.thoughtworks.com)
Practical JRuby on Rails (http://apress.com/book/view/9781590598818)

"Yields falsehood when quined" yields falsehood when quined.