[Jelly] Configure rendering in "non-permissive" mode: crash if referencing undefined things?

[Baptiste Mathus]

Hi,

Currently, in my .jelly files, if I use something like ${it.getSomething(someparam)} but the method getSomething() is actually undefined on the it object, no error is generated.

Some questions:

• is this expected? (I mean, calling something absent and that being just ignored)
  
• is there a way to enable an aggressive mode, at least for example in dev mode, that would just throw a stack trace in my face?

Thanks a lot for any hint.

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Baptiste

[Jesse Glick]

On Tue, Oct 27, 2015 at 12:24 PM, Baptiste Mathus <m...@batmat.net> wrote:
> is this expected? (I mean, calling something absent and that being just
> ignored)

Yes.

> is there a way to enable an aggressive mode, at least for example in dev
> mode, that would just throw a stack trace in my face?

No.

JEXL and Jelly were just poor choices for a rendering engine in a big,
modular application. You can use Groovy views, which will report some
errors of this kind, though Groovy is a sufficiently complex and
dynamic language that it will let almost anything past the compiler,
and a lot of weird stuff past the runtime too.

I filed https://issues.jenkins-ci.org/browse/JENKINS-31203 to track
some ideas I have been mulling over.

[Baptiste Mathus]

Thanks a lot for the definitive answer Jesse. I'm watching the issue.

In the meantime I've indeed switched to Groovy views for at least better detection of refactored names.

Cheers

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Baptiste <Batmat> MATHUS - http://batmat.net
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