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From "Henri Biestro (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JEXL-259) Shorter ant-ish variables prevent longer ant-ish variables from being resolved properly
Date Sun, 29 Apr 2018 13:32:00 GMT

    [ https://issues.apache.org/jira/browse/JEXL-259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16458024#comment-16458024
] 

Henri Biestro commented on JEXL-259:
------------------------------------

This is the intended behavior; you can not mix antish and property accessed variables. If
*a.b* resolves as an antish var and returns a non-null object (lets call it 'ab'), *a.b.c*
must be a property of  'ab'. if this is null, *a.b.c.d* is not solvable (note the 'd' here)
.
In general, as soon as an antish var returns a non-null object, the remaining expression is
expected to be solved as properties. Alternative behaviors would be easily inconsistent or
unpredictable. Is *a.b.c.* the 'c' property of 'a.b' or the antish var *a.b.c* ?

As is, this issue is not a bug; as an improvement, it might be possible to detect/flag 'pure'
antish references and set/get them through overridable method. 

> Shorter ant-ish variables prevent longer ant-ish variables from being resolved properly
> ---------------------------------------------------------------------------------------
>
>                 Key: JEXL-259
>                 URL: https://issues.apache.org/jira/browse/JEXL-259
>             Project: Commons JEXL
>          Issue Type: Bug
>    Affects Versions: 3.1
>            Reporter: Dmitri Blinov
>            Priority: Major
>
> The following script is evaluated successfully
> {code}
> a.b.c = 2; a.b = 1; return a.b
> {code}
> While the following scripts are terminated with error {{unsolvable property 'c'}}
> {code}
> a.b = 1; a.b.c = 2; return a.b
> {code}
> {code}
> a.b.c = 2; a.b = 1; return a.b.c
> {code}



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