384435 - E4X: filtering with .() consumes a lot memory

Status: RESOLVED WONTFIX

(Core :: JavaScript Engine, defect)

Description

[Marc Kerbiquet]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1
Build Identifier: 1.8 Branch

When filters are used intensively, the process consumes a lot memory
and the interpreter ends up with an 'out of memory' error.

Here is an example:

var x = <xml>
  <e id="1"/>
  <e id="2"/>
</xml>
for(var i=0; i<10000000; i++)
  x.e.(@id=="1")

When run in js shell, it consumes all the available memory (I've stopped it at 800Mb).


Reproducible: Always

Comment 1

[Matthias Versen [:Matti]]

E4X will be removed again from Spidermonkey (bug 788293)