Closed Bug 698074 Opened 8 years ago Closed 8 years ago

"Assertion failure: hasSlot() && !hasMissingSlot(),"

Categories

(Core :: JavaScript Engine, defect, critical)

x86
Linux
defect
Not set
critical

Tracking

()

RESOLVED FIXED

People

(Reporter: gkw, Unassigned)

References

Details

(Keywords: assertion, regression, testcase)

Attachments

(1 file)

Attached file stack
a = (0).__proto__
b = (0).__proto__
b.__defineSetter__("valueOf", function() {})
a + 8

asserts js debug shell on JM changeset b01eb1ba58ce without any CLI flags at Assertion failure: hasSlot() && !hasMissingSlot(),

autoBisect shows this is probably related to the following changeset:

The first bad revision is:
changeset:   77570:ff51ddfdf5d1
user:        Brian Hackett
date:        Wed Sep 28 15:04:55 2011 -0700
summary:     Remove shape numbers and Shape::slotSpan, factor Shape getter/setter into BaseShape, bug 684505.
Related to bug 690396 ? (The testcase there involves yield, which this testcase doesn't.)
Keywords: regression
As per decoder's request, this does not reproduce on m-c changeset 1c7e1db3645b.
This is a new assertion added under a function called in many places (shape->slot()) so can indicate separate problems.  This is a different misuse of shape->slot() than the one in bug 690396.

https://hg.mozilla.org/projects/jaegermonkey/rev/c46c6ebe3d19
Status: NEW → RESOLVED
Closed: 8 years ago
Resolution: --- → FIXED
Automatically extracted testcase for this bug was committed:

https://hg.mozilla.org/mozilla-central/rev/efaf8960a929
Flags: in-testsuite+
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