[jira] [Commented] (JEXL-190) local function within context is not resolved if function resolver class without namespace is specified

["Dmitri Blinov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/JEXL-190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15197073#comment-15197073 ] 

Dmitri Blinov commented on JEXL-190:
------------------------------------

As far as I can understand the logic the problem lies in Interpreter.java 

{code}
    protected Object visit(ASTFunctionNode node, Object data) {
        int argc = node.jjtGetNumChildren();
        if (argc == 2) {
            Object namespace = resolveNamespace(null, node);
            if (namespace == null) {
                namespace = context;
            }
            ASTIdentifier functionNode = (ASTIdentifier) node.jjtGetChild(0);
            ASTArguments argNode = (ASTArguments) node.jjtGetChild(1);
            return call(node, namespace, functionNode, argNode);
{code}

if we initialized JexlEngine with namespace resolver map containing 'null' key, then JexlContext is never checked as it is only checked if there is nothing returned by resolveNamespace. So even if a variable in the context exists with that name, it will never be evaluated.

> local function within context is not resolved if function resolver class without namespace is specified
> -------------------------------------------------------------------------------------------------------
>
>                 Key: JEXL-190
>                 URL: https://issues.apache.org/jira/browse/JEXL-190
>             Project: Commons JEXL
>          Issue Type: Bug
>    Affects Versions: 3.0
>            Reporter: Dmitri Blinov
>            Assignee: Henri Biestro
>
> {code}
> z = function(x) { return x + 1}; return z(1)
> {code} returns error unsolvable function/method 'z' while 
> {code}
> var z = function(x) { return x + 1}; return z(1)
> {code} returns 2



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