[jira] [Closed] (JEXL-237) Ability to restrict usage of certain names when declaring local variables

["Henri Biestro (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JEXL-237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Henri Biestro closed JEXL-237.
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> Ability to restrict usage of certain names when declaring local variables
> -------------------------------------------------------------------------
>
>                 Key: JEXL-237
>                 URL: https://issues.apache.org/jira/browse/JEXL-237
>             Project: Commons JEXL
>          Issue Type: Wish
>    Affects Versions: 3.1
>            Reporter: Dmitri Blinov
>            Assignee: Henri Biestro
>            Priority: Minor
>             Fix For: 3.2
>
>
> One of the errors the scriptwriter usually makes is an accidental override of certain context variables with his own local variables, which leads to nasty bugs detected only when script is executed. As of now there is only a small list of reserved words that can not be used as a valid variable name, and it is restricted to basic Jexl syntax keywords. When Jexl syntax is extended with custom functions and predefined context variables, its much easier for a local variable name to clash with predefined name, thus altering script execution further on. To exclude those errors it is needed that a custom name verification would exist, prohibiting the scripts from be successfully parsed.



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