1611459 - ErrorReport::populateUncaughtExceptionReportUTF8VA() can result in a null filename

Status: NEW

(Core :: JavaScript Engine, task, P2)

Description

[Andrew McCreight [:mccr8]]

Quoting myself from bug 1611280: "ErrorReport::populateUncaughtExceptionReportUTF8VA() looks like it is another place that can result in a null filename. If I'm reading this correctly, it looks like this could happen if we end up in some kind of fallback exception creating code in ErrorReport::init(), when the top of the JS stack is self-hosted code. Maybe we could put a generic value as a file name in that case, or maybe we could just fail and hope something okay happens."

Comment 1

[Andrew McCreight [:mccr8]]

It also looks like a script source can have a null file name, for instance if there's an OOM when setting the file name on the script source. So it may be tricky to avoid that.