397656 - Fuel Application obj instanceof IDispatch crashes 3.0a8

Status: RESOLVED WONTFIX

(Firefox :: General, defect)

Description

[John J. Barton]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20060918 Firefox/2.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a8) Gecko/2007091216 GranParadiso/3.0a8

When I call the following method with the object "Application" from Fuel, FF 3.0a8 crashes when it gets to IDispatch.  Other objects succeed and this code works on FF 2.0.0.7.  sysout is dump.

this.dumpInterfaces = function(obj)
{
	var found = false;
	// could try for classInfo
	for(iface in Components.interfaces)
	{this.sysout("iface "+iface+"\n");
		if (obj instanceof Components.interfaces[iface])
		{this.sysout("instanceof\n");
			found = true;
			for (p in Components.interfaces[iface])
			{
				this.sysout("["+iface+"."+p+"]="+obj[p]+";\n");
			}
		}

	}
	return found;
}

Reproducible: Always

Steps to Reproduce:
1.I don't know how you can reproduce this, but the code above should trigger the problem.  There are several Talkback stacks from this, sometime Sept 26, 2007
2.
3.
Actual Results:  
Crash

Comment 1

[John J. Barton]

http://crash-stats.mozilla.com/report/index/0dbc3311-6c4e-11dc-bfdd-001a4bd46e84?date=2007-09-26-16