Le 2 mars 2015 05:38, "Marcus Denker" <marcus.denker@inria.fr> a ��crit :
>
> Hi,
>
> The tiny progress of today: I reviewed the code for the MetaLink from Clara��s Breakpoints
> and added it to Pharo4.

Yay! There was also one extension method in Slot to make work with those, have you seen it?

I has as state:
>
> metaObject�� the target
> selector�� what to call
> arguments�� which args?
> condition�� true, false or [block evaluating to a boolean]
> control�� before, after, replace��
> level�� active at base or meta level? (to stop meta-recursion)
> nodes�� where it is installed.
>
>
> ------ Examples -----
>
> MetaLink new
> �� metaObject: Halt;
> �� selector: #now.
>
> MetaLink new
> �� metaObject: [ self halt ];
> �� selector: #value.
>
> MetaLink new
> �� metaObject: #node;
> �� selector: tagExecuted
>
> or one that can only be installed on Message send:
>
> MetaLink
> �� metaObject: #object;
> �� selector: perform:withArguments;
> �� arguments: #(selector arguments);
> �� control: #replace
>
>
> Of course, the real core of the whole things is next: An AST transforming compiler plugin
> that takes these links into account.
> Of course, exact details might change (e.g. control using symbols or classes (ControlBefore)��,
> do we call it instead, replace or even AOP-style ��around��?
>
> The first will be just a #before with no arguments, as this is what we need for simple breakpoints.
>
> �� Marcus