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Re: `object' and interfaces

> 
> Please try this patch.
> 

Unfortunately, when typing

(toplevel '.x)
(checkbutton '.x.c)

I get the following error after the call to `checkbutton' (you have
the definition in the code I sent you):

java.lang.NullPointerException
        at gnu.bytecode.CodeAttr.emitGetField(Compiled Code)
        at gnu.expr.LambdaExp.loadHeapFrame(Compiled Code)
        at gnu.expr.Declaration.loadOwningObject(Compiled Code)
        at gnu.expr.Declaration.load(Compiled Code)
        at gnu.expr.ReferenceExp.compile(Compiled Code)
        at gnu.expr.ApplyExp.compile(Compiled Code)
        at gnu.expr.ApplyExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.BeginExp.compile(Compiled Code)
        at kawa.standard.convert.compile(Compiled Code)
        at gnu.expr.ApplyExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.ObjectExp.compile(Compiled Code)
        at gnu.expr.LambdaExp.compileAlloc(Compiled Code)
        at gnu.expr.LambdaExp.compile(Compiled Code)
        at gnu.expr.ObjectExp.compile(Compiled Code)
        at gnu.expr.LetExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.IfExp.compile(Compiled Code)
        at gnu.expr.IfExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.IfExp.compile(Compiled Code)
        at gnu.expr.IfExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.IfExp.compile(Compiled Code)
        at gnu.expr.IfExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.LetExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.BeginExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.IfExp.compile(Compiled Code)
        at gnu.expr.IfExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.ApplyExp.compile(Compiled Code)
        at gnu.expr.ApplyExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.BeginExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.LetExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.BeginExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.LetExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.LetExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.LetExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.LetExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.LetExp.compile(Compiled Code)
        at gnu.expr.Expression.compileWithPosition(Compiled Code)
        at gnu.expr.Compilation.addClass(Compiled Code)
        at gnu.expr.Compilation.<init>(Compiled Code)
        at gnu.expr.LambdaExp.eval(Compiled Code)
        at gnu.expr.ModuleExp.evalModule(Compiled Code)
        at kawa.Shell.run(Compiled Code)
        at kawa.Shell.run(Compiled Code)
        at kawa.repl.main(Compiled Code)

Aleks

> 	--Per Bothner
> Cygnus Solutions     bothner@cygnus.com     http://www.cygnus.com/~bothner
> 
> Index: ObjectExp.java
> ===================================================================
> RCS file: /cvs/kawa/kawa/gnu/expr/ObjectExp.java,v
> retrieving revision 1.4
> diff -u -r1.4 ObjectExp.java
> --- ObjectExp.java	1999/03/11 10:57:07	1.4
> +++ ObjectExp.java	1999/03/19 02:55:41
> @@ -12,6 +12,8 @@
>    public ObjectExp ()
>    {
>      type = null;
> +    // Make sure we actually generate a class.
> +    setCanRead(true);
>    }
>  
>    public String getJavaName ()
>