RE: Problem with load when upgrading from 1.9.90 to 1.11

[Franck Krogh Mortensen <Franck dot Krogh dot Mortensen at Systematic dot com>]

Hi,

Somehow we still cannot get version 1.11 to work.

We build compile our scheme.scm with the following command in our Ant script:
    <java classname="kawa.repl" fork="yes" failonerror="yes">
      <arg value="-d"/>
      <arg value="${build.classes}/a/b"/>
      <arg value="-P"/>
      <arg value="dk.systematic."/>
      <arg value="-T"/>
      <arg value="scheme"/>
      <arg value="--module-static"/>
      <arg value="-C"/>
      <arg value="${src.main.scheme}/scheme.scm"/>
      <classpath refid="compile-classpath"/>
    </java>

Kawa makes the scheme.class and it's inner classes in the right directory and we makes a jar-file with our application and the scheme class files.

When we call scm.eval("(load \"a.b.scheme\")") in our class which also resides in the jar-file, we gets the following Exception:

Caused by: java.lang.RuntimeException: cannot load a.b.scheme (The system cannot find the file specified)
	at kawa.standard.load.apply2(load.java:47)
	at kawa.standard.load.apply1(load.java:26)
	at gnu.mapping.Procedure.apply(Procedure.java:130)
	at gnu.mapping.Procedure.apply(Procedure.java:113)
	at gnu.mapping.CallContext.runUntilDone(CallContext.java:234)
	at gnu.expr.ModuleExp.evalModule2(ModuleExp.java:348)
	at gnu.expr.ModuleExp.evalModule(ModuleExp.java:185)
	at gnu.expr.Language.eval(Language.java:943)
	at gnu.expr.Language.eval(Language.java:883)
	at gnu.expr.Language.eval(Language.java:865)
	at a.b.LoadImpl.loadScheme(LoadImpl.java:43)

I've tried to decompile the generated Scheme.class file and it does not seem to have a package definition like package a.b;

Kind regards

Franck Krogh Mortensen

-----Original Message-----
From: Per Bothner [mailto:per@bothner.com] 
Sent: Monday, January 16, 2012 5:48 PM
To: Franck Krogh Mortensen
Cc: kawa@sourceware.org
Subject: Re: Problem with load when upgrading from 1.9.90 to 1.11

On 01/16/2012 12:59 AM, Franck Krogh Mortensen wrote:
> Hi,
>
> We are trying to upgrade Kawa from version 1.9.90 to the current 1.11.
>
> Our problem is that load does not seem to work properly when loading a pre-complied scheme class. It is working fine with version 1.9.90.
>
> The scenario:
> We use Kawa to compile a scm file, as we do not want to compile at the startup of our application. The class files are put in a jar file.
> When we start the application the following code is called:
>
>        Scheme.registerEnvironment();
>        Scheme scm = new Scheme();
>        scm.eval("(load \"scheme.class\")");

Instead of:
   (load "a/b/c.class")
do:
   (load "a.b.c")
assuming the class is in the path of the context class loader path.
(Loading a class file *not* in the classpath never worked anyway ...)

Though it's not documented, instead  of eval+load you could consider doing kawa.Shell.runFileOrClass("a.b.c", false, 0)
or: kawa.Shell.runClass(clas, env)

> BTW: can the documentation for 1.9.90 be found somewhere?

If you have makeinfo installed, you can make it yourself:
   cd doc; make html
It won't be as pretty as the website, but it's the same basic content.

I am actively working on updating the documentation: as soon as I've documented new features, I'll make a preview available.
-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/