1134187 - Browser Tools Javascript If Statement Logic

Status: RESOLVED DUPLICATE of bug 1003554

(DevTools :: Debugger, defect)

Description

[David Camps]

Attachment: Image#2.gif

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; Trident/7.0; .NET4.0E; .NET4.0C; Media Center PC 6.0; .NET CLR 3.5.30729; .NET CLR 2.0.50727; .NET CLR 3.0.30729; rv:11.0) like Gecko

Steps to reproduce:

I am looking at the code run when a place (Downloads) is clicked in the Library window using "Browser Tools".  I have two breakpoints set in places.js#onPlacesListClick: (Debugger tab search argument).  I set a breakpoint on and inside the if statement and the watch shows the if expression is false.  I click the resume button and the breakpoint inside the if statement hits (image#2).  This was happening in "Firefox 35.0.1" and I downloaded "Firefox Developer Edition 37.0.a2 (2015-02-18)", with no extensions loaded, and see it there too.  Is this correct?



Actual results:

Logic flow of if statement seems to be incorrect, if statement body is executed when if test is false


Expected results:

The if statement body should not have been executed and the second breakpoint should not have hit.

Comment 1

[David Camps]

I see the same behavior with "FireBug 3.0.0-alpha.9" on "Firefox Developer Edition 37.0.a2 (2015-02-18)"

Comment 2

[Tom Tromey :tromey]

This is a dup of one of the stepping bugs.  Offhand I'm not sure exactly which one,
but they were all fixed around the same time, and 1003554 has dups already, so I'm
somewhat arbitrarily choosing that one.