Xotcl May 2012

xotcl@alice.wu.ac.at

3 participants
4 discussions

Announcement: Next Scripting Framework 2.0b3 available
by Gustaf Neumann 10 Jun '13

10 Jun '13

Dear Community, We are pleased to announce the availability of the Next Scripting Framework 2.0b3 which can be obtained from http://next-scripting.org Best regards - Gustaf Neumann - Stefan Sobernig =============================================== Announcing NSF 2.0b3 ************************* Major changes relative to NSF 2.0b2 are: * Additional Features: - object parameters: call method "assign" on slot objects, when it is provided - include "-returns" in introspection for aliases and scripted methods. New subcommand "info method returns" for nx. - better compatibility with XOTcl 1.*: * invocation of objects via method interface follows per default the XOTcl 1.* conventions. In order to obtain the semantics of ensemble objects, the object properties "keepcallerself" and "perobjectdispatch" have to be used. * better handling of XOTcl 1.* configure commands (starting with a "-") when list property is lost (Many thanks to Zoran Vasjljevic for the good example) * use different version numbers in serializer to avoid mixups between XOTcl 1 and XOTcl 2 when both packages are installed * Improved Code Quality: - improved performance * rewrite of alias handling (alias reform) * improved branch prediction * significant speedup for handling large numbers of subclasses (subclass reform), avoid repetitious computations * significant speedup on mass-destroy (e.g. on thread exit) - provide better protection for deletion/overwriting of base classes - fixed potential duplicates on diamond inheritance - fixed unknown handling for "-local" and "-system" dispatches - improved compatibility for windows compilations (c89, __WIN32__) - fixed potential crashes * during method caching * error messages * implicit deletions - follow Tcl convention on error messages (start always with lower case) - better handling of multiple errors in a single command. - return GMT dates in Httpd as RFCs require * Improved documentation - fixed typos, improve wordings * Extended regression tests MORE INFO General and more detailed information about the Next Scripting Framework and its components can be found at http://next-scripting.org

2 1

Segfault after undefining "new" proc in a class namespace
by Arthur Schreiber 08 Jun '12

08 Jun '12

Hey Gustaf, The following is propably a very uncommon use case, but it causes a segfault, so I think it's rather serious: % package require nx % nx::Class create A {} % proc ::A::new {} { return "something" } % A new something % rename ::A::new "" % A new [1] 2515 segmentation fault (core dumped) tclsh Kind regards, Arthur

2 2

2nd Call For Papers, 19th Annual Tcl/Tk Conference 2012
by Andreas Kupries 30 May '12

30 May '12

[[ Notes: Colin Walker of F5 is confirmed as our Keynote speaker. http://www.f5.com ]] 19th Annual Tcl/Tk Conference (Tcl'2012) http://www.tcl.tk/community/tcl2012/ November 12 - 16, 2012 Holiday Inn Chicago Mart Plaza 350 West Mart Center Drive Chicago, Illinois, USA Important Dates: Abstracts and proposals due August 27, 2012 Notification to authors September 10, 2012 WIP and BOF reservations open August 6, 2012 Author materials due October 29, 2012 Tutorials Start November 12, 2012 Conference starts November 14, 2012 Email Contact: tclconference(a)googlegroups.com Submission of Summaries Tcl/Tk 2012 will be held in Chicago, Illinois, USA from November 12 - 16, 2012. The program committee is asking for papers and presentation proposals from anyone using or developing with Tcl/Tk (and extensions). Past conferences have seen submissions covering a wide variety of topics including: * Scientific and engineering applications * Industrial controls * Distributed applications and Network Managment * Object oriented extensions to Tcl/Tk * New widgets for Tk * Simulation and application steering with Tcl/Tk * Tcl/Tk-centric operating environments * Tcl/Tk on small and embedded devices * Medical applications and visualization * Use of different programming paradigms in Tcl/Tk and proposals for new directions. * New areas of exploration for the Tcl/Tk language Submissions should consist of an abstract of about 100 words and a summary of not more than two pages, and should be sent as plain text to <tclconference AT googlegroups DOT com> no later than August 27, 2012. Authors of accepted abstracts will have until October 29, 2012 to submit their final paper for the inclusion in the conference proceedings. The proceedings will be made available on digital media, so extra materials such as presentation slides, code examples, code for extensions etc. are encouraged. Printed proceedings will be produced as an on-demand book at lulu.com The authors will have 25 minutes to present their paper at the conference. The program committee will review and evaluate papers according to the following criteria: * Quantity and quality of novel content * Relevance and interest to the Tcl/Tk community * Suitability of content for presentation at the conference Proposals may report on commercial or non-commercial systems, but those with only blatant marketing content will not be accepted. Application and experience papers need to strike a balance between background on the application domain and the relevance of Tcl/Tk to the application. Application and experience papers should clearly explain how the application or experience illustrates a novel use of Tcl/Tk, and what lessons the Tcl/Tk community can derive from the application or experience to apply to their own development efforts. Papers accompanied by non-disclosure agreements will be returned to the author(s) unread. All submissions are held in the highest confidentiality prior to publication in the Proceedings, both as a matter of policy and in accord with the U. S. Copyright Act of 1976. The primary author for each accepted paper will receive registration to the Technical Sessions portion of the conference at a reduced rate. Other Forms of Participation The program committee also welcomes proposals for panel discussions of up to 90 minutes. Proposals should include a list of confirmed panelists, a title and format, and a panel description with position statements from each panelist. Panels should have no more than four speakers, including the panel moderator, and should allow time for substantial interaction with attendees. Panels are not presentations of related research papers. Slots for Works-in-Progress (WIP) presentations and Birds-of-a-Feather sessions (BOFs) are available on a first-come, first-served basis starting in August 6, 2012. Specific instructions for reserving WIP and BOF time slots will be provided in the registration information available in June 2012. Some WIP and BOF time slots will be held open for on-site reservation. All attendees with an interesting work in progress should consider reserving a WIP slot. Registration Information More information on the conference is available the conference Web site (http://www.tcl.tk/community/tcl2012/) and will be published on various Tcl/Tk-related information channels. To keep in touch with news regarding the conference and Tcl events in general, subscribe to the tcl-announce list. See: http://code.activestate.com/lists/tcl-announce to subscribe to the tcl-announce mailing list. Conference Committee Clif Flynt Noumena Corp General Chair, Website Admin Andreas Kupries ActiveState Software Inc. Program Chair Cyndy Lilagan Nat. Museum of Health & Medicine, Chicago Site/Facilities Chair Arjen Markus Deltares Brian Griffin Mentor Graphics Donal Fellows University of Manchester Gerald Lester KnG Consulting, LLC Jeffrey Hobbs ActiveState Software Inc. Kevin Kenny GE Global Research Center Larry Virden Mike Doyle National Museum of Health & Medicine, Chicago Ron Fox NSCL/FRIB Michigan State University Steve Landers Digital Smarties Contact Information tclconference(a)googlegroups.com Tcl'2012 would like to thank those who are sponsoring the conference: ActiveState Software Inc. Buonacorsi Foundation Mentor Graphics Noumena Corp. SR Technology Tcl Community Association

1 0

Missing introspection methods for class methods
by Arthur Schreiber 25 May '12

25 May '12

Hello Gustaf, as far as I can see, nx is currently missing any methods to introspect class level methods. (I know there is info lookup, but that's not exactly what I want to do). Also, as classes can be treated as objects, it's confusing that that calling `MyClass info methods` returns the instance methods of the class, whereas `$my_object info methods` returns the objects callable methods. Thus, I propose the following changes to bring these two in line: * `info methods` should return the callable methods of an object, no matter whether it is a class or an object instance. * `info methods -self` should return the callable methods defined in this object, no matter whether it is a class or an object instance. This should not include inherited methods. So for objects, this would only return methods defined on that object directly, and for classes, this would only return class methods directly defined on it. * `info method $subcmd $method` should work as in the current implementation for objects, but when called on a class, it should not target its instance methods but only directly callable methods. Only for classes (and mixins): * `info instance_methods` should return all instance methods defined in the class/mixin and it's ancestors. * `info instance_methods -self` should return all instance methods defined in the class/mixin. * `info instance_method $subcmd $method` should work as `info method`, but for instance methods of the class/mixin and it's ancestors. What's your opinion on this? Kind regards, Arthur

2 1

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

Xotcl May 2012