697854 - eval string to function throw exception "function statement requires a name"

Status: RESOLVED INVALID

(Core :: JavaScript Engine, defect)

Description

[Aquila]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0.1) Gecko/20100101 Firefox/7.0.1
Build ID: 20110928134238

Steps to reproduce:

eval a string to a function:
var func1=eval("function(){alert('Hello World');}");
var func2=eval("function(text){alert(text);}");


Actual results:

The eval function throw the following exception:
"function statement requires a name"


Expected results:

The eval function should return a function.

Comment 1

[Aquila]

This bug prevent me to upgrade to FF 7 because some user scripts and an intranet uses this method. This is working is FF 6, so please fix this bug.

Comment 2

[Wayne Mery (:wsmwk)]

Aquila, can you still reproduce when using a current version?

Comment 3

[YF (Yang)]

I see it in Fx44b8. I see throw an error in Chrome 47 & IE11. It may be an illegal statement for JavaScript standard.

Comment 4

[Till Schneidereit [:till]]

(In reply to YF (Yang) from comment #3)
> It may be an illegal statement for JavaScript standard.

It is, yes. function(){alert('Hello World');} isn't valid, and trying to run it in an eval call doesn't change that.

I'm guessing that content that used to rely on this working has long gone, so we should be able to safely close this.