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Posted to issues@commons.apache.org by "Dmitri Blinov (Jira)" <ji...@apache.org> on 2019/10/01 11:14:00 UTC
[jira] [Updated] (JEXL-307) Variable redeclaration option
[ https://issues.apache.org/jira/browse/JEXL-307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitri Blinov updated JEXL-307:
-------------------------------
Description:
As of now, JEXL allows a script writer to redeclare a local variable during script evaluation.
{code:java}
var a = 1; var a = 2;{code}
. This may lead to potential errors with misspelled names and clashed variables. Checking for already defined variable is a common feature of many languages. This feature can be implemented in JEXL as an additional option of JexlFeatures class, enabled by default, thus allowing compatibility with existing code.
was:
As of now, JEXL allows a script writer to redeclare a local variable during script evaluation.
{code:java}
var a = 1; var a = 2;{code}. This may lead to potential errors with misspelled and names and clashed variables. Checking for already defined variable is a common feature of many languages. This feature can be implemented in JEXL as an additional option of JexlFeatures class, enabled by default, thus allowing compatibility with existing code.
> Variable redeclaration option
> -----------------------------
>
> Key: JEXL-307
> URL: https://issues.apache.org/jira/browse/JEXL-307
> Project: Commons JEXL
> Issue Type: New Feature
> Affects Versions: 3.1
> Reporter: Dmitri Blinov
> Assignee: Henri Biestro
> Priority: Minor
> Fix For: 3.2
>
>
> As of now, JEXL allows a script writer to redeclare a local variable during script evaluation.
> {code:java}
> var a = 1; var a = 2;{code}
> . This may lead to potential errors with misspelled names and clashed variables. Checking for already defined variable is a common feature of many languages. This feature can be implemented in JEXL as an additional option of JexlFeatures class, enabled by default, thus allowing compatibility with existing code.
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