void
JSCompartment::sweepBreakpoints(FreeOp *fop)
{
gcstats::AutoPhase ap(rt->gcStats, gcstats::PHASE_SWEEP_TABLES_BREAKPOINT);
if (rt->debuggerList.isEmpty())
return;
for (CellIterUnderGC i(zone(), FINALIZE_SCRIPT); !i.done(); i.next()) {
JSScript *script = i.get<JSScript>();
if (script->compartment() != this || !script->hasAnyBreakpointsOrStepMode())
continue;
bool scriptGone = IsScriptAboutToBeFinalized(&script);
JS_ASSERT(script == i.get<JSScript>());
for (unsigned i = 0; i < script->length; i++) {
BreakpointSite *site = script->getBreakpointSite(script->code + i);
if (!site)
continue;
// nextbp is necessary here to avoid possibly reading *bp after
// destroying it.
Breakpoint *nextbp;
for (Breakpoint *bp = site->firstBreakpoint(); bp; bp = nextbp) {
nextbp = bp->nextInSite();
if (scriptGone || IsObjectAboutToBeFinalized(&bp->debugger->toJSObjectRef()))
bp->destroy(fop);
}
}
}
}
void
JSCompartment::sweepBreakpoints(JSContext *cx)
{
if (JS_CLIST_IS_EMPTY(&cx->runtime->debuggerList))
return;
for (CellIterUnderGC i(this, FINALIZE_SCRIPT); !i.done(); i.next()) {
JSScript *script = i.get<JSScript>();
if (!script->hasAnyBreakpointsOrStepMode())
continue;
bool scriptGone = IsAboutToBeFinalized(cx, script);
for (unsigned i = 0; i < script->length; i++) {
BreakpointSite *site = script->getBreakpointSite(script->code + i);
if (!site)
continue;
// nextbp is necessary here to avoid possibly reading *bp after
// destroying it.
Breakpoint *nextbp;
for (Breakpoint *bp = site->firstBreakpoint(); bp; bp = nextbp) {
nextbp = bp->nextInSite();
if (scriptGone || IsAboutToBeFinalized(cx, bp->debugger->toJSObject()))
bp->destroy(cx);
}
}
}
}
void
JSCompartment::clearTraps(JSContext *cx, JSScript *script)
{
for (BreakpointSiteMap::Enum e(breakpointSites); !e.empty(); e.popFront()) {
BreakpointSite *site = e.front().value;
if (!script || site->script == script)
site->clearTrap(cx, &e);
}
}
JS_SetTrap(JSContext *cx, JSScript *script, jsbytecode *pc, JSTrapHandler handler, jsval closure)
{
assertSameCompartment(cx, script, closure);
if (!CheckDebugMode(cx))
return false;
BreakpointSite *site = script->getOrCreateBreakpointSite(cx, pc);
if (!site)
return false;
site->setTrap(cx->runtime->defaultFreeOp(), handler, closure);
return true;
}
void
JSCompartment::clearBreakpointsIn(JSContext *cx, js::Debugger *dbg, JSScript *script,
JSObject *handler)
{
JS_ASSERT_IF(script, script->compartment() == this);
for (BreakpointSiteMap::Enum e(breakpointSites); !e.empty(); e.popFront()) {
BreakpointSite *site = e.front().value;
if (!script || site->script == script) {
Breakpoint *nextbp;
for (Breakpoint *bp = site->firstBreakpoint(); bp; bp = nextbp) {
nextbp = bp->nextInSite();
if ((!dbg || bp->debugger == dbg) && (!handler || bp->getHandler() == handler))
bp->destroy(cx, &e);
}
}
}
}
void
JSCompartment::sweepBreakpoints(JSContext *cx)
{
for (BreakpointSiteMap::Enum e(breakpointSites); !e.empty(); e.popFront()) {
BreakpointSite *site = e.front().value;
// clearTrap and nextbp are necessary here to avoid possibly
// reading *site or *bp after destroying it.
bool scriptGone = IsAboutToBeFinalized(cx, site->script);
bool clearTrap = scriptGone && site->hasTrap();
Breakpoint *nextbp;
for (Breakpoint *bp = site->firstBreakpoint(); bp; bp = nextbp) {
nextbp = bp->nextInSite();
if (scriptGone || IsAboutToBeFinalized(cx, bp->debugger->toJSObject()))
bp->destroy(cx, &e);
}
if (clearTrap)
site->clearTrap(cx, &e);
}
}
void
JSCompartment::checkScriptMapsAfterMovingGC()
{
if (scriptCountsMap) {
for (auto r = scriptCountsMap->all(); !r.empty(); r.popFront()) {
JSScript* script = r.front().key();
CheckGCThingAfterMovingGC(script);
auto ptr = scriptCountsMap->lookup(script);
MOZ_RELEASE_ASSERT(ptr.found() && &*ptr == &r.front());
}
}
if (scriptNameMap) {
for (auto r = scriptNameMap->all(); !r.empty(); r.popFront()) {
JSScript* script = r.front().key();
CheckGCThingAfterMovingGC(script);
auto ptr = scriptNameMap->lookup(script);
MOZ_RELEASE_ASSERT(ptr.found() && &*ptr == &r.front());
}
}
if (debugScriptMap) {
for (auto r = debugScriptMap->all(); !r.empty(); r.popFront()) {
JSScript* script = r.front().key();
CheckGCThingAfterMovingGC(script);
DebugScript* ds = r.front().value();
for (uint32_t i = 0; i < ds->numSites; i++) {
BreakpointSite* site = ds->breakpoints[i];
if (site && site->type() == BreakpointSite::Type::JS)
CheckGCThingAfterMovingGC(site->asJS()->script);
}
auto ptr = debugScriptMap->lookup(script);
MOZ_RELEASE_ASSERT(ptr.found() && &*ptr == &r.front());
}
}
}