void
ion::HandleException(ResumeFromException *rfe)
{
AssertCanGC();
JSContext *cx = GetIonContext()->cx;
IonSpew(IonSpew_Invalidate, "handling exception");
// Immediately remove any bailout frame guard that might be left over from
// an error in between ConvertFrames and ThunkToInterpreter.
js_delete(cx->runtime->ionActivation->maybeTakeBailout());
IonFrameIterator iter(cx->runtime->ionTop);
while (!iter.isEntry()) {
if (iter.isScripted()) {
// Search each inlined frame for live iterator objects, and close
// them.
InlineFrameIterator frames(&iter);
for (;;) {
CloseLiveIterators(cx, frames);
// When profiling, each frame popped needs a notification that
// the function has exited, so invoke the probe that a function
// is exiting.
AutoAssertNoGC nogc;
RawScript script = frames.script();
Probes::exitScript(cx, script, script->function(), NULL);
if (!frames.more())
break;
++frames;
}
IonScript *ionScript;
if (iter.checkInvalidation(&ionScript))
ionScript->decref(cx->runtime->defaultFreeOp());
}
++iter;
}
// Clear any Ion return override that's been set.
// This may happen if a callVM function causes an invalidation (setting the
// override), and then fails, bypassing the bailout handlers that would
// otherwise clear the return override.
if (cx->runtime->hasIonReturnOverride())
cx->runtime->takeIonReturnOverride();
rfe->stackPointer = iter.fp();
}
