[Laszlo-dev] more scoping problem with "parent"

[Henry Minsky]

That give me an error when I try to build the LFC

On Tue, Apr 1, 2008 at 7:33 AM, P T Withington <ptw at pobox.com> wrote:

> You could try making this change for now, it might let you move forward
> while I work on the instance classes:
>
> Index: SWF9Generator.java
> ===================================================================
> --- SWF9Generator.java  (revision 8509)
> +++ SWF9Generator.java  (working copy)
> @@ -130,7 +130,7 @@
>   public boolean remapLocals() {
>     // TODO: [2007-12-11 dda] maybe remap selectively - anything that is
>     // private may be remapped.
> -    return false;
> +    return true;
>   }
>
>   // override superclass version - we do not want the
>

     [echo] Compiling /Users/hqm/openlaszlo/trunk4/lps/includes/lfc/LFC9.swc
     [java] Exception compiling scriptfile:
org.openlaszlo.sc.Compiler$PassThroughNode
     [java] java.lang.ClassCastException:
org.openlaszlo.sc.Compiler$PassThroughNode
     [java]     at
org.openlaszlo.sc.VariableAnalyzer.visit(VariableAnalyzer.java:106)
     [java]     at
org.openlaszlo.sc.VariableAnalyzer.visit(VariableAnalyzer.java:152)
     [java]     at
org.openlaszlo.sc.VariableAnalyzer.visit(VariableAnalyzer.java:152)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.translateFunctionInternal(JavascriptGenerator.java:1245)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.translateFunction(JavascriptGenerator.java:1088)
     [java]     at
org.openlaszlo.sc.SWF9Generator.translateFunction(SWF9Generator.java:575)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.visitFunctionDeclaration(JavascriptGenerator.java:387)
     [java]     at
org.openlaszlo.sc.CommonGenerator.visitStatement(CommonGenerator.java:729)
     [java]     at
org.openlaszlo.sc.CommonGenerator.visitStatement(CommonGenerator.java:697)
     [java]     at
org.openlaszlo.sc.SWF9Generator.visitModifiedDefinition(SWF9Generator.java:342)
     [java]     at
org.openlaszlo.sc.CommonGenerator.visitStatement(CommonGenerator.java:797)
     [java]     at
org.openlaszlo.sc.CommonGenerator.visitStatement(CommonGenerator.java:697)
     [java]     at
org.openlaszlo.sc.CommonGenerator.visitChildren(CommonGenerator.java:928)
     [java]     at
org.openlaszlo.sc.SWF9Generator.translateClassDefinition(SWF9Generator.java:269)
     [java]     at
org.openlaszlo.sc.SWF9Generator.visitClassDefinition(SWF9Generator.java:235)
     [java]     at
org.openlaszlo.sc.CommonGenerator.visitStatement(CommonGenerator.java:720)
     [java]     at
org.openlaszlo.sc.CommonGenerator.visitStatement(CommonGenerator.java:697)
     [java]     at
org.openlaszlo.sc.SWF9Generator.visitModifiedDefinition(SWF9Generator.java:342)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.visitProgram(JavascriptGenerator.java:299)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.translateInternal(JavascriptGenerator.java:180)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.translateInclude(JavascriptGenerator.java:352)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.visitProgram(JavascriptGenerator.java:283)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.visitProgram(JavascriptGenerator.java:206)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.visitProgram(JavascriptGenerator.java:268)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.translateInternal(JavascriptGenerator.java:180)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.translateInclude(JavascriptGenerator.java:352)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.visitProgram(JavascriptGenerator.java:283)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.visitProgram(JavascriptGenerator.java:213)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.translateInternal(JavascriptGenerator.java:180)
     [java]     at
org.openlaszlo.sc.JavascriptGenerator.translate(JavascriptGenerator.java:44)
     [java]     at
org.openlaszlo.sc.SWF9Generator.translate(SWF9Generator.java:353)
     [java]     at org.openlaszlo.sc.Compiler.compile(Compiler.java:352)
     [java]     at org.openlaszlo.sc.lzsc.compile(lzsc.java:110)
     [java]     at org.openlaszlo.sc.lzsc.compile(lzsc.java:322)
     [java]     at org.openlaszlo.sc.Main.main(Main.java:10)
     [java] Compilation aborted.




>
>
> On 2008-03-31, at 23:05 EDT, Henry Minsky wrote:
>
> > In the hello.lzx example, there is a test of states, like this:
> >
> >  <view id="mystate"  x="650" y="80" onclick="this.mystate.apply()" >
> >   <state name="mystate">
> >     <view width="50" height="50" x="50" y="40" bgcolor="#ccccff"
> >           onclick="parent.mystate.remove()">
> >             <text>xxx Click me to remove state</text>
> >     </view>
> >   </state>
> >   <view width="50" height="50" bgcolor="#ffcccc"/>
> >   <text name="t1">Click me to apply state</text>
> >  </view>
> >
> > That now gives a swf9 compiler error of
> >
> > ERRORS:
> > Compiler error: at [/tmp/lzswf9/lzgen27335/LzApplication.as: 94]: Error:
> > Access of possibly undefined property mystate through a reference with
> > static type flash.display:DisplayObjectContainer.
> >
> > parent.mystate.remove()
> >      ^
> >
> >
> > which looks like it is getting the "parent" instance var of the SWF9
> > "main"
> > application, which is has a "parent" field inherited from flash's
> > "DisplayObjectContainer".
> >
> >
> > --
> > Henry Minsky
> > Software Architect
> > hminsky at laszlosystems.com
> >
>
>


-- 
Henry Minsky
Software Architect
hminsky at laszlosystems.com
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