[JEXL-306] Ternary operator ? protects also its branches from resolution errors

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1
• Fix Version/s: 3.2
• Assignee: Henri Biestro
• Reporter: Dmitri Blinov
• Created: 07/Jun/19 09:01
• Updated: 07/Jun/21 13:14
• Resolved: 11/Jun/19 12:50

Description

Consider the following test case (suppose its added to IfTest)

    @Test
    public void testTernaryFail() throws Exception {
        JexlEvalContext jc = new JexlEvalContext();
        JexlExpression e = JEXL.createExpression("false ? bar : quux");
        Object o;

        jc.setStrict(true);
        jc.setSilent(false);
        try {
           o = e.evaluate(jc);
           Assert.fail("Should have failed");
        } catch (Exception ex) {
           // OK
        }
    }

The expected behavior is to fail with undefined variable... because neither bar nor quux is defined