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https://issues.apache.org/jira/browse/JEXL-113?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Henri Biestro resolved JEXL-113.
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Resolution: Fixed
Fix Version/s: 2.1
Committed revision 1147694.
> Add functions to extract which variables, parameters and local variables are
> used to evaluate a script
> ------------------------------------------------------------------------------------------------------
>
> Key: JEXL-113
> URL: https://issues.apache.org/jira/browse/JEXL-113
> Project: Commons JEXL
> Issue Type: Sub-task
> Affects Versions: 2.0.1
> Environment: JDK 1.6
> Reporter: Max Tardiveau
> Assignee: Henri Biestro
> Fix For: 2.1
>
>
> When a variable of the form a.b is evaluated, the context is asked first for
> the value of a. That value is then asked for the value of b.
> So far, so good: this is exactly what you'd expect from the dot operator.
> But if the value of b is null, the context is then asked for the value of
> a.b, in other words the dot operator is ignored and "a.b" is considered to be
> a single variable.
> This is at best confusing. Granted, this can be avoided with the a['b']
> notation, but that's clumsy.
> I assume this is an attempt to support both the dot operator and ant-style
> variables. I don't think you can have both and remain sane.
> Suggestion: either document this behavior, or make it an option. My vote
> would be to just use the value returned, even if it's null. Either dot is an
> operator, or it's not. Perhaps make that configurable?
> Thanks!
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