Re: [Pharo-dev] Object graph stream/visitor implementation?
Hi, Indeed, DeepTraverser is the project to look at. I started it from the code of Mariano, and then Stefan Rechhart reimplemented it from scratch to make it very fast (e.g. traversing subclasses of a class is only 10% slower than the hard coded withAllSubclassesDo:) and to make it work like a stream. It's really beautiful. Cheers, Doru -- www.tudorgirba.com "Every thing has its own flow" > On 22 Dec 2015, at 14:06, Mariano Martinez Peck wrote: > > Denis, > > The DeepTraverser was a little easy hack I shared years ago to Tudor Girba > which he then (improved it?) put it in Moose. > While it works is still very limited. You can give it a try. And if not, > please spend some time checking the graph traverser we have in Fuel. I > suspect it could be easily adapted for custom code, but I am not sure ;) > > Basically, check FLAnalysis >> run, which has a stack and starts the trace > via #mapAndTrace: > > Cheers, > >> On Tue, Dec 22, 2015 at 6:20 AM, Denis Kudriashov >> wrote: >> I found this: http://smalltalkhub.com/#!/~Moose/DeepTraverser >> >> 2015-12-22 10:05 GMT+01:00 Marcus Denker : >>> >>> > On 22 Dec 2015, at 09:46, Denis Kudriashov wrote: >>> > >>> > Hello. >>> > >>> > Do we have way to traverse object graph? >>> > >>> > I want stream which iterate object graph through instance variables with >>> > knowledge about path at every step. >>> > >>> > Maybe Fuel has classes for this ? >>> > >>> >>> yes, I think so.. there is #fuelAccept:, but I am not sure how general it >>> is. >>> >>> I remember that Doru did some object graph iteration experiments, too? >>> (I can’t find it). >>> >>> But I think we should actually add a general “object graph iterator” to the >>> reflective >>> features of the language. It seems very useful to have, and for sure Fuel >>> could just >>> use it. >>> >>> Marcus > > > > -- > Mariano > http://marianopeck.wordpress.com
Re: [Pharo-dev] Object graph stream/visitor implementation?
Denis, The DeepTraverser was a little easy hack I shared years ago to Tudor Girba which he then (improved it?) put it in Moose. While it works is still very limited. You can give it a try. And if not, please spend some time checking the graph traverser we have in Fuel. I suspect it could be easily adapted for custom code, but I am not sure ;) Basically, check FLAnalysis >> run, which has a stack and starts the trace via #mapAndTrace: Cheers, On Tue, Dec 22, 2015 at 6:20 AM, Denis Kudriashov wrote: > I found this: http://smalltalkhub.com/#!/~Moose/DeepTraverser > > 2015-12-22 10:05 GMT+01:00 Marcus Denker : > >> >> > On 22 Dec 2015, at 09:46, Denis Kudriashov >> wrote: >> > >> > Hello. >> > >> > Do we have way to traverse object graph? >> > >> > I want stream which iterate object graph through instance variables >> with knowledge about path at every step. >> > >> > Maybe Fuel has classes for this ? >> > >> >> yes, I think so.. there is #fuelAccept:, but I am not sure how general it >> is. >> >> I remember that Doru did some object graph iteration experiments, too? >> (I can’t find it). >> >> But I think we should actually add a general “object graph iterator” to >> the reflective >> features of the language. It seems very useful to have, and for sure Fuel >> could just >> use it. >> >> Marcus >> >> >> >> >> > -- Mariano http://marianopeck.wordpress.com
Re: [Pharo-dev] Object graph stream/visitor implementation?
I found this: http://smalltalkhub.com/#!/~Moose/DeepTraverser 2015-12-22 10:05 GMT+01:00 Marcus Denker : > > > On 22 Dec 2015, at 09:46, Denis Kudriashov wrote: > > > > Hello. > > > > Do we have way to traverse object graph? > > > > I want stream which iterate object graph through instance variables with > knowledge about path at every step. > > > > Maybe Fuel has classes for this ? > > > > yes, I think so.. there is #fuelAccept:, but I am not sure how general it > is. > > I remember that Doru did some object graph iteration experiments, too? > (I can’t find it). > > But I think we should actually add a general “object graph iterator” to > the reflective > features of the language. It seems very useful to have, and for sure Fuel > could just > use it. > > Marcus > > > > >
Re: [Pharo-dev] Object graph stream/visitor implementation?
I'm sorry, this is with Fuel loaded. These are extensions to Fuel serialization and materialization. b, robert On 12/22/2015 03:55 AM, Robert Withers wrote: I managed to get per object substitution callbacks working in Mushroom. Please take a look in http://www.squeaksource.com/Mushroom and load Mushr00m-Pharo on top of MushrOOm (after installing Cryptography and SecureSession from http://www.squeaksource.com/Cryptography). Then look at the classes in the Utility category. HTH, Robert On 12/22/2015 03:46 AM, Denis Kudriashov wrote: Hello. Do we have way to traverse object graph? I want stream which iterate object graph through instance variables with knowledge about path at every step. Maybe Fuel has classes for this ? Best regards, Denis -- . .. ... ^,^robert Go Panthers!
Re: [Pharo-dev] Object graph stream/visitor implementation?
> On 22 Dec 2015, at 09:46, Denis Kudriashov wrote: > > Hello. > > Do we have way to traverse object graph? > > I want stream which iterate object graph through instance variables with > knowledge about path at every step. > > Maybe Fuel has classes for this ? > yes, I think so.. there is #fuelAccept:, but I am not sure how general it is. I remember that Doru did some object graph iteration experiments, too? (I can’t find it). But I think we should actually add a general “object graph iterator” to the reflective features of the language. It seems very useful to have, and for sure Fuel could just use it. Marcus
Re: [Pharo-dev] Object graph stream/visitor implementation?
I managed to get per object substitution callbacks working in Mushroom. Please take a look in http://www.squeaksource.com/Mushroom and load Mushr00m-Pharo on top of MushrOOm (after installing Cryptography and SecureSession from http://www.squeaksource.com/Cryptography). Then look at the classes in the Utility category. HTH, Robert On 12/22/2015 03:46 AM, Denis Kudriashov wrote: Hello. Do we have way to traverse object graph? I want stream which iterate object graph through instance variables with knowledge about path at every step. Maybe Fuel has classes for this ? Best regards, Denis -- . .. ... ^,^robert Go Panthers!
[Pharo-dev] Object graph stream/visitor implementation?
Hello. Do we have way to traverse object graph? I want stream which iterate object graph through instance variables with knowledge about path at every step. Maybe Fuel has classes for this ? Best regards, Denis
