772833 - 'in' operator in middle clause of a ternary not allowed

Status: RESOLVED FIXED

(Rhino Graveyard :: Core, defect)

Description

[André Bargull [:anba]]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20100101 Firefox/13.0.1
Build ID: 20120614114901

Steps to reproduce:

Try to compile:
---
function(){ for (var x =a ? b in c :e in {}) {} }
---


Actual results:

REPL printed the following error:

js> function(){ for (var x =a ? b in c :e in {}) {} }
js: "<stdin>", line 7: missing : in conditional expression
js: function(){ for (var x =a ? b in c :e in {}) {} }
js: ................................^
js: "<stdin>", line 7: missing } after function body
js: function(){ for (var x =a ? b in c :e in {}) {} }
js: ................................................^
js: "<stdin>", line 7: Compilation produced 2 syntax errors.


Expected results:

No parser error should be reported, see spec grammar:
---
ConditionalExpressionNoIn :  
    LogicalORExpressionNoIn
    LogicalORExpressionNoIn ? AssignmentExpression : AssignmentExpressionNoIn
---

Comment 1

[Hannes Wallnoefer]

Pretty esoteric! Fixed in git master:

https://github.com/mozilla/rhino/commit/bc034c15b4aeb8d381f8297dee35de7f5fa5d8ea