477412 - Add an undetectable properties to js shell

Status: RESOLVED FIXED

(Core :: JavaScript Engine, enhancement)

Description

[Jesse Ruderman]

SpiderMonkey supports undetectable properties, and this feature is used in the browser for document.all.  But no such properties exist in the shell, so my fuzzers can't test this feature easily.

Please either:

  A) Add a shell function to create an undetectable property or make a property undetectable

or

  B) Add an undetectable property to the object called "it".

Comment 1

[Jan de Mooij [:jandem]]

Waldo rewrote this a while ago and added objectEmulatingUndefined():

js> objectEmulatingUndefined()             
({})
js> typeof objectEmulatingUndefined()      
"undefined"