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[armedbear-devel] JSR-223: Returning immutable lists in ScriptEngineFactory
by Clemens Blamauer 20 Sep '09

20 Sep '09

Hi everyone, I was looking through the JSR-223 code in org.armedbear.lisp.scripting as I noticed that AbclScriptEngineFactory is not fully compliant to JSR-223 [1] (p. 101-102 in the Final Draft Specification, v1.0). For the methods: - java.util.List<java.lang.String> getExtensions() - java.util.List<java.lang.String> getMimeTypes() - java.util.List<java.lang.String> getNames() _immutable_ Lists should be returned. Please find a remedying patch below. Cheerz, Clemens [1] http://jcp.org/en/jsr/detail?id=223 ---- Index: AbclScriptEngineFactory.java =================================================================== --- AbclScriptEngineFactory.java (revision 12157) +++ AbclScriptEngineFactory.java (working copy) @@ -21,6 +21,7 @@ package org.armedbear.lisp.scripting; import java.util.ArrayList; +import java.util.Collections; import java.util.List; import javax.script.ScriptEngine; @@ -44,7 +45,7 @@ public List<String> getExtensions() { List<String> extensions = new ArrayList<String>(1); extensions.add("lisp"); - return extensions; + return Collections.unmodifiableList(extensions); } @Override @@ -89,7 +90,7 @@ @Override public List<String> getMimeTypes() { - return new ArrayList<String>(); + return Collections.unmodifiableList(new ArrayList<String>()); } @Override @@ -99,7 +100,7 @@ names.add("cl"); names.add("Lisp"); names.add("Common Lisp"); - return names; + return Collections.unmodifiableList(names); } @Override -- # Trust in code: # lynx http://lxr.linux.no/linux+v2.6.23.14/arch/i386/kernel/cpu/common.c#L677

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[armedbear-devel] [PATCH] incorporating java stack frames into backtrace
by Tobias C. Rittweiler 20 Sep '09

20 Sep '09

When evaluating (ext:make-thread #'(lambda ())) you get an error "The value NIL is not of type STRING." -- this is a bug in ABCL itself, by the way, but that's not the matter of this mail. The concern of this mail is the backtrace that'd you get: Backtrace: 0: (INVOKE-DEBUGGER #<TYPE-ERROR {B1A201}>) 1: (MAKE-THREAD #<FUNCTION (LAMBDA ()) {15343C2}>) 2: (SYSTEM::%EVAL (MAKE-THREAD #'(LAMBDA NIL))) 3: (EVAL (MAKE-THREAD #'(LAMBDA NIL))) ... The only thing the backtrace reveales is that the error was signalled somewhere in MAKE-THREAD. With the patch of this mail, the backtrace will also contain the relevant Java stack frames for errors that were signalled from within ABCL's Java runtime: Backtrace: 0: (INVOKE-DEBUGGER #<TYPE-ERROR {B1A201}>) 1: org.armedbear.lisp.Lisp.error(Lisp.java:375) 2: org.armedbear.lisp.Lisp.type_error(Lisp.java:390) 3: org.armedbear.lisp.LispObject.getStringValue(LispObject.java:1061) 4: org.armedbear.lisp.LispThread.<init>(LispThread.java:111) 5: org.armedbear.lisp.LispThread.<init>(LispThread.java:39) 6: org.armedbear.lisp.LispThread$3.execute(LispThread.java:909) 7: org.armedbear.lisp.Primitive.execute(Primitive.java:108) 8: (MAKE-THREAD #<FUNCTION (LAMBDA ()) {15343C2}>) 9: (SYSTEM::%EVAL (MAKE-THREAD #'(LAMBDA NIL))) 10: (EVAL (MAKE-THREAD #'(LAMBDA NIL))) Another example: (LENGTH 12) Backtrace: 0: (INVOKE-DEBUGGER #<TYPE-ERROR {814AF5}>) 1: org.armedbear.lisp.Lisp.error(Lisp.java:375) 2: org.armedbear.lisp.Lisp.type_error(Lisp.java:390) 3: org.armedbear.lisp.LispObject.length(LispObject.java:403) 4: org.armedbear.lisp.LispObject.LENGTH(LispObject.java:410) 5: org.armedbear.lisp.Primitives$24.execute(Primitives.java:427) 6: (LENGTH 12) 7: (SYSTEM::%EVAL (LENGTH 12)) 8: (EVAL (LENGTH 12)) -T. -- Diese Nachricht wurde auf Viren und andere gefaerliche Inhalte untersucht und ist - aktuelle Virenscanner vorausgesetzt - sauber. Freebits E-Mail Virus Scanner

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[armedbear-devel] JSR-223: Return immutable lists in ScriptEngineFactory
by Clemens Blamauer 20 Sep '09

20 Sep '09

Hi everyone, I was looking through the JSR-223 code in org.armedbear.lisp.scripting as I noticed that AbclScriptEngineFactory is not fully compliant to JSR-223 [1]. For the methods: - java.util.List<java.lang.String> getExtensions() - java.util.List<java.lang.String> getMimeTypes() - java.util.List<java.lang.String> getNames() _immutable_ Lists should be returned. Please find a remedying patch below. Cheerz, Clemens [1] http://jcp.org/en/jsr/detail?id=223 ---- Index: AbclScriptEngineFactory.java =================================================================== --- AbclScriptEngineFactory.java (revision 12157) +++ AbclScriptEngineFactory.java (working copy) @@ -21,6 +21,7 @@ package org.armedbear.lisp.scripting; import java.util.ArrayList; +import java.util.Collections; import java.util.List; import javax.script.ScriptEngine; @@ -44,7 +45,7 @@ public List<String> getExtensions() { List<String> extensions = new ArrayList<String>(1); extensions.add("lisp"); - return extensions; + return Collections.unmodifiableList(extensions); } @Override @@ -89,7 +90,7 @@ @Override public List<String> getMimeTypes() { - return new ArrayList<String>(); + return Collections.unmodifiableList(new ArrayList<String>()); } @Override @@ -99,7 +100,7 @@ names.add("cl"); names.add("Lisp"); names.add("Common Lisp"); - return names; + return Collections.unmodifiableList(names); } @Override

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[armedbear-devel] Build problem
by Paul 20 Sep '09

20 Sep '09

Can anybody help with this build problem? I'm on MACOSX 10.5.8 trying to build from SVN, which I updated a few minutes ago. Buildfile: build.xml abcl.copy.lisp: [copy] Copying 171 files to /Users/pdo/Lisp/ABCL/build/classes abcl.init: [echo] java.version: 1.5.0_19 [echo] Implementation-Source: ${version.src} abcl.java.warning: abcl.jsr-223.notice: [echo] [echo] Notice: JSR-223 support won't be built since it is not [echo] supported, neither natively by your JVM nor by [echo] libraries in the CLASSPATH. [echo] abcl.compile.java: [javac] Compiling 268 source files to /Users/pdo/Lisp/ABCL/build/ classes abcl.fasls.uptodate: abcl.compile.lisp: [java] Armed Bear Common Lisp 0.15.0 [java] Java 1.5.0_19 Apple Inc. [java] Java HotSpot(TM) Client VM [java] Low-level initialization completed in 1.627 seconds. [java] Startup completed in 7.773 seconds. [java] [java] Caught SIMPLE-ERROR while processing --eval option "(compile-system :zip nil :quit t)": [java] *LISP-HOME* is NIL or invalid. [java] Please set *LISP-HOME* to the full pathname of the directory containing the Lisp system files. BUILD FAILED /Users/pdo/Lisp/ABCL/build.xml:211: Java returned: 2 Thanks, Paul

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[armedbear-devel] [PATCH] Add SYS::*INVOKE-DEBUGGER-HOOK*
by Tobias C. Rittweiler 20 Sep '09

20 Sep '09

The first patch adds SYS::*INVOKE-DEBUGGER-HOOK* which is like *DEBUGGER-HOOK* but is observed by INVOKE-DEBUGGER even when BREAK is called. This obliterates the need to redefine SYS::BREAK in swank-abcl.lisp. A patch for swank-abcl is also attached. -T.

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[armedbear-devel] r12147
by Ville Voutilainen 17 Sep '09

17 Sep '09

Thanks to Douglas Miles, I committed a fix to PRINT-LENGTH.INIT.1 ansi test. I'll commit the rest of Douglas' fixes shortly. Douglas, thanks for the contributions!

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Re: [armedbear-devel] [j-devel] slime swank-abcl.lisp
by Mark Evenson 17 Sep '09

17 Sep '09

On 9/12/09 7:45 AM, Alan Ruttenberg wrote: > Here's a patch against the current swank-abcl.lisp to make a couple of > things work for the trunk abcl. > > I don't want to check it in, as I don't know whether there are issues > with it working for older versions of abcl. > > The fixes make edit definition work, and arglists for generic functions. > > Is there anyone out there who is currently active on slime development > that is comfortable checking these in? Applied to SLIME CVS HEAD. Thanks for the patch! I tested with abcl-0.{15,16} and HEAD with the patch working as I expected. Keeping compatibility with more ancient versions of ABCL takes a too much of my scant resources, but if someone is stuck with a previous version of ABCL they wish to maintain compatibility with SLIME CVS HEAD, drop me an email to work something out. For those following the "old" armedbear-j-devel(a)lists.sourceforge.net list, and perhaps wondering why things have been so quiet lately, note that we moved [ABCL specific traffic to common-lisp.net][1] some months ago. [1]: http://common-lisp.net/cgi-bin/mailman/listinfo/armedbear-devel -- "A screaming comes across the sky. It has happened before, but there is nothing to compare to it now."

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[armedbear-devel] [ANN] Snow 0.1 released - GUI library for ABCL
by Alessio Stalla 15 Sep '09

15 Sep '09

Greetings everyone, I am pleased to announce the first public release of my "Snow" library, available at http://alessiostalla.altervista.org/software/snow/index.php It is a declarative DSL for creating GUIs (Swing-only for now) built on ABCL 0.16. It supports Cells by Ken Tilton and MiG Layout (a declarative, CSS-like layout manager for Swing and SWT). As a bonus, Snow includes the GUI versions of ABCL's inspector, debugger and REPL. Snow is to be considered alpha quality. In particular, % of Swing supported is ridiculously small, and little testing has been performed. If you feel brave enough to play with it, let me know about your experience. Cheers, Alessio

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[armedbear-devel] [from abcl-dev] Question on ABCL-SCRIPT
by Mark Evenson 15 Sep '09

15 Sep '09

Over on the abcl-dev blog OMouse said... I have a question: how do you change the eval/load-script stuff so it doesn't use the ABCL-SCRIPT package? I'm trying to add extensive scripting to a game but I'd like to be able to switch the package so that the scripter can use a huge bunch of variables without me having to :export them. Can anyone help with this question? I must sheepishly confess to not having much experience with ABCL-SCRIPT yet, but the question seems to ask for refinements in our implementation. Posting a reply on the [abcl-dev blog][1] would be great. [1]: http://abcl-dev.blogspot.com/2009/09/abcl-0160-released.html#comments -- "A screaming comes across the sky. It has happened before, but there is nothing to compare to it now."

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[armedbear-devel] Loading ABCL fasls from JARs
by Erik Huelsmann 14 Sep '09

14 Sep '09

Hi Mark, Today I was thinking about what to write in our bi-weekly blog. Then I remembered you committed the support for loading FASLs from JARs. Would you -or someone else- want to write a blog entry on the ABCL-DEV blog to make this feature world-known? Of course, if you don't have time, that's fine too. It's just that I suddenly figured it would be a nice subject to blog about. Bye, Erik.

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