[squeak-dev] using reflections in squeak
Bob Arning
arning315 at comcast.net
Mon Apr 29 20:15:43 UTC 2013
aClass compile: (aClass sourceCodeAt: aMethod) string,' "** this is a
comment**"'
Cheers,
Bob
On 4/29/13 4:03 PM, Dvir Faivel wrote:
> T
> hanks Bob! the example helped a lot.
>
> Tim, i want to change the behavior of some methods (at runtime, based
> on the user's decision).
> for example, if a method of class A contains the comment:
> "hello, this is a comment"
> than if B inherits from A, this method wouldn't be inherited (an
> attempt to call this method from an object of type B would cause an
> exception to be thrown).
> the reason i'm using a comment is that it doesn't affect the code.
>
> is there a simple way to add a code to a method?
> for example, to add "this is a comment" to the end of the code?
>
>
> On Mon, Apr 29, 2013 at 2:46 AM, tim Rowledge <tim at rowledge.org
> <mailto:tim at rowledge.org>> wrote:
>
>
> On 28-04-2013, at 1:55 PM, Dvir Faivel <sdvirf at t2.technion.ac.il
> <mailto:sdvirf at t2.technion.ac.il>> wrote:
>
> > hi there,
> > i have a question about squeak object model.
> >
> > how can i check whether a method contains a certain piece of code?
>
> You'll get better advice if you expand upon what you want & why;
> what is the real problem you are trying to solve here?
>
> If, for example you're simply wanting to programatically find all
> senders of a particular message then the code is already there -
> take a look at SystemNavigation>allCallsOn:fromBehaviors:sorted:
> to see how to scan all the methods implemented by a list of
> behaviours (ie classes or metaclasses) for sends of a particular
> message, including ones that are special cases.
> If you already know which class and method you want to look at
> then examine Behavior>whichSelectorsReferTo:specialByte:thorough:
> to see how the system does it.
>
> Or are you wanting to look for particular fragments of code with
> some sort of text based pattern matching? Or...?
>
>
> tim
> --
> tim Rowledge; tim at rowledge.org <mailto:tim at rowledge.org>;
> http://www.rowledge.org/tim
> ASCII to ASCII, DOS to DOS.
>
>
>
>
>
>
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