On Friday 16 July 2010 18:07:57 Matt Benson wrote:
> On Jul 16, 2010, at 8:25 AM, Nicolas Lalevée wrote:
> > Hi,
> >
> > I did some other experiment with the groovy frontend to ant
> > recently. And I
> > would like to be able to make a groovy build file import an xml
> > build file
> > and vice versa.
> >
> > As far as I can tell, in order to do this, a simple change would be
> > needed in
> > ImportTask. Rather than doing this in importResource:
> >
> > helper.parse(getProject(), importedResource);
> >
> > we would do something like:
> >
> > ProjectHelper subHelper =
> > ProjectHelperRepository.getInstance().getProjectHelperForBuildFile(
> >                     importedResource);
> >
> > // push current stacks into the sub helper
> > subHelper.getImportStack().addAll(helper.getImportStack());
> > subHelper.getExtensionStack().addAll(helper.getExtensionStack());
> > getProject().addReference(ProjectHelper.PROJECTHELPER_REFERENCE,
> > subHelper);
> >
> > subHelper.parse(getProject(), importedResource);
> >
> > // push back the stacks from the sub helper to the main one
> > getProject().addReference(ProjectHelper.PROJECTHELPER_REFERENCE,
> > helper);
> > helper.getImportStack().clear();
> > helper.getImportStack().addAll(subHelper.getImportStack());
> > helper.getExtensionStack().clear();
> > helper.getExtensionStack().addAll(subHelper.getExtensionStack());
> >
> >
> > For the little tests I have done with the groovy frontend, it seems
> > to work
> > quite well.
> >
> > Actually it seems so simple that I am wondering if I might have
> > missed some
> > side effect. Did I ?
>
> I suppose it's possible you missed something, but it seems okay.  If
> it were me, I might work out a way to make the subHelper send its
> imports/extensions directly back to the top-level ProjectHelper
> rather than so much clearing and replacing, but I'll admit to being
> somewhat paranoid.

I think I got paranoid too but the other way: I didn't want to change the API 
of ProjectHelper that might be implemented around the world and bring 
backward compatibility issues.

Thanks for the review, I will commit that probably with some additionnal unit 
tests.

Nicolas

>
> -Matt
>
> > At least the unit tests showed me that I did nothing that wrong.
> >
> > Nicolas
> >
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