[ https://issues.apache.org/jira/browse/JEXL-114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sebb closed JEXL-114. --------------------- Assignee: (was: Henri Biestro) > Allow scripts to create local variables // Add return keyword > ------------------------------------------------------------- > > Key: JEXL-114 > URL: https://issues.apache.org/jira/browse/JEXL-114 > Project: Commons JEXL > Issue Type: New Feature > Affects Versions: 2.0.1 > Reporter: Henri Biestro > Fix For: 2.1 > > > WHY: > Not having local variables nor return in scripts is inconvenient, especially > when dealing with loops. > This also precludes using read-only contexts easily which are really > convenient when letting end-users enter their own expressions. > HOW: > This could (will) be implemented by extending the parameters feature (script > accept parameters during parsing and thus arguments during evaluation) which > is itself based on the notion of 'registers' - an array of objects that the > interpreter allocates and uses based on script information. > It only requires adding one keyword ("var" seems the obvious choice) in the > .jjt. > The "return" keyword is also an easy .jjt addition; obvious implementation is > to use an internal exception to force traversing the stack up. > WHAT: > Add the "var" and "return" keyword. > Also add methods to extract the variables (global - see JEXL-113), the > parameters (used during parsing) and the local variables (declared within) a > script to help pinpoint problems or prepare the evaluation of scripts. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira