Xotcl February 2012

xotcl@alice.wu.ac.at

5 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

Mixins don't respect class hierarchy
by Arthur Schreiber 23 Feb '12

23 Feb '12

Hello Gustaf, playing around with mixins, I came across the following behaviour: package require nx nx::Class create TestMixin { :public method test {} { puts "mixin" } } nx::Object mixin TestMixin nx::Class create TestClass { :public method test {} { puts "class" } } set test [TestClass new] puts [$test info precedence]; # => ::TestMixin ::TestClass ::nx::Object $test test; # => mixin Is that intended? I would have expected that the class hierarchy of ::TestClass instances would look like "::TestClass ::TestMixin ::nx::Object". Kind regards, Arthur

2 1

Annonce: XOTcl 0.85 released - compatible with XOTcl 2.0
by Artur Trzewik 13 Feb '12

13 Feb '12

Hi XOTcl Friends! The new release of XOTclIDE 0.85 is ready on http://www.xdobry.de/xotclIDE Changes: 1. Compatible with XOTclI 2.0 (nxf based XOTcl). Many thanks to Gustaf Neumann for patches. Indeed XOTcl 2.0 seems to be the most backward compatible version ever of XOTcl. I was quite surprised that my many thousand of XOTcl code runs without problems with XOTcl 2.0. So version difference 1.6 to 2.0 seems to be most internal nature. But there is small change in XOTcl 2.0 that make problem with old XOTclIDE 0.84. The method names can not start with : but it was used in @ Object to store meta information for IDE. If you have all XOTclIDE components, you will need to load and write all components with XOTclIDE 0.85 (if you use file system components) and XOTcl 1.6 and then you can use them with XOTclIDE 0.85 and XOTcl 2.0. All just remove the colons from meta descriptions For example @ ::IDE::Browser idemeta component IDEBaseGUI to @ IDE::Browser idemeta component IDEBaseGUI 2) Improvements in tcl syntax checker. Now it knows new tcl 8.5 commands (for example dict) 3) New namespace browser 4) New interpreter browser. You can create slave interperter run and inspect the state of interpreter 5) Modified wiki reaper. It can list wiki pages with tcl code, run it in slave interpreter and inspect it. 6) Code completion knowns also tcl commands options. 7) Many other improvements and bug fixes. Artur

2 1

Can't call protected class method from instances
by Arthur Schreiber 10 Feb '12

10 Feb '12

Hello Gustaf, Is not being able to call protected class methods from instances intended behaviour? Here is a very simple test case: package require nx nx::Class create Greeter { :class protected method say_hi {} { puts "Hello!" } :public method say_hi {} { [:info class] say_hi } } [Greeter new] say_hi Also, protected methods can not be called from instances of the same class, e.g.: package require nx nx::Class create Greeter { :public method say_hi { other_greeter } { $other_greeter protected_say_hi } :protected method protected_say_hi { } { puts "Hello!" } } set g1 [Greeter new] [Greeter new] say_hi $g1 Kind Regards, Arthur

2 1

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Xotcl February 2012