JS_SetWatchPoint(JSContext *cx, JSObject *obj_, jsid id_,
JSWatchPointHandler handler, JSObject *closure_)
{
assertSameCompartment(cx, obj_);
RootedId id(cx, id_);
RootedObject origobj(cx, obj_), closure(cx, closure_);
RootedObject obj(cx, GetInnerObject(cx, origobj));
if (!obj)
return false;
RootedValue v(cx);
unsigned attrs;
RootedId propid(cx);
if (JSID_IS_INT(id)) {
propid = id;
} else if (JSID_IS_OBJECT(id)) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, nullptr, JSMSG_CANT_WATCH_PROP);
return false;
} else {
RootedValue val(cx, IdToValue(id));
if (!ValueToId<CanGC>(cx, val, &propid))
return false;
}
/*
* If, by unwrapping and innerizing, we changed the object, check
* again to make sure that we're allowed to set a watch point.
*/
if (origobj != obj && !CheckAccess(cx, obj, propid, JSACC_WATCH, &v, &attrs))
return false;
if (!obj->isNative()) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, nullptr, JSMSG_CANT_WATCH,
obj->getClass()->name);
return false;
}
/*
* Use sparse indexes for watched objects, as dense elements can be written
* to without checking the watchpoint map.
*/
if (!JSObject::sparsifyDenseElements(cx, obj))
return false;
types::MarkTypePropertyConfigured(cx, obj, propid);
WatchpointMap *wpmap = cx->compartment()->watchpointMap;
if (!wpmap) {
wpmap = cx->runtime()->new_<WatchpointMap>();
if (!wpmap || !wpmap->init()) {
js_ReportOutOfMemory(cx);
return false;
}
cx->compartment()->watchpointMap = wpmap;
}
return wpmap->watch(cx, obj, propid, handler, closure);
}
JS_SetWatchPoint(JSContext *cx, JSObject *obj, jsid id,
JSWatchPointHandler handler, JSObject *closure)
{
assertSameCompartment(cx, obj);
id = js_CheckForStringIndex(id);
JSObject *origobj;
Value v;
uintN attrs;
jsid propid;
origobj = obj;
OBJ_TO_INNER_OBJECT(cx, obj);
if (!obj)
return false;
AutoValueRooter idroot(cx);
if (JSID_IS_INT(id)) {
propid = id;
} else if (JSID_IS_OBJECT(id)) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_CANT_WATCH_PROP);
return false;
} else {
if (!js_ValueToStringId(cx, IdToValue(id), &propid))
return false;
propid = js_CheckForStringIndex(propid);
idroot.set(IdToValue(propid));
}
/*
* If, by unwrapping and innerizing, we changed the object, check
* again to make sure that we're allowed to set a watch point.
*/
if (origobj != obj && !CheckAccess(cx, obj, propid, JSACC_WATCH, &v, &attrs))
return false;
if (!obj->isNative()) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_CANT_WATCH,
obj->getClass()->name);
return false;
}
types::MarkTypePropertyConfigured(cx, obj, propid);
WatchpointMap *wpmap = cx->compartment->watchpointMap;
if (!wpmap) {
wpmap = cx->runtime->new_<WatchpointMap>();
if (!wpmap || !wpmap->init()) {
js_ReportOutOfMemory(cx);
return false;
}
cx->compartment->watchpointMap = wpmap;
}
return wpmap->watch(cx, obj, propid, handler, closure);
}
JS_SetWatchPoint(JSContext *cx, JSObject *obj_, jsid id,
JSWatchPointHandler handler, JSObject *closure_)
{
assertSameCompartment(cx, obj_);
RootedObject obj(cx, obj_), closure(cx, closure_);
JSObject *origobj = obj;
obj = GetInnerObject(cx, obj);
if (!obj)
return false;
RootedValue v(cx);
unsigned attrs;
RootedId propid(cx);
if (JSID_IS_INT(id)) {
propid = id;
} else if (JSID_IS_OBJECT(id)) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_CANT_WATCH_PROP);
return false;
} else {
if (!ValueToId(cx, IdToValue(id), propid.address()))
return false;
}
/*
* If, by unwrapping and innerizing, we changed the object, check
* again to make sure that we're allowed to set a watch point.
*/
if (origobj != obj && !CheckAccess(cx, obj, propid, JSACC_WATCH, &v, &attrs))
return false;
if (!obj->isNative()) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_CANT_WATCH,
obj->getClass()->name);
return false;
}
types::MarkTypePropertyConfigured(cx, obj, propid);
WatchpointMap *wpmap = cx->compartment->watchpointMap;
if (!wpmap) {
wpmap = cx->runtime->new_<WatchpointMap>();
if (!wpmap || !wpmap->init()) {
js_ReportOutOfMemory(cx);
return false;
}
cx->compartment->watchpointMap = wpmap;
}
return wpmap->watch(cx, obj, propid, handler, closure);
}
JS_SetWatchPoint(JSContext *cx, JSObject *obj_, jsid id_,
JSWatchPointHandler handler, JSObject *closure_)
{
assertSameCompartment(cx, obj_);
RootedId id(cx, id_);
RootedObject origobj(cx, obj_), closure(cx, closure_);
RootedObject obj(cx, GetInnerObject(cx, origobj));
if (!obj)
return false;
RootedId propid(cx);
if (JSID_IS_INT(id)) {
propid = id;
} else if (JSID_IS_OBJECT(id)) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, nullptr, JSMSG_CANT_WATCH_PROP);
return false;
} else {
RootedValue val(cx, IdToValue(id));
if (!ValueToId<CanGC>(cx, val, &propid))
return false;
}
if (!obj->isNative()) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, nullptr, JSMSG_CANT_WATCH,
obj->getClass()->name);
return false;
}
/*
* Use sparse indexes for watched objects, as dense elements can be written
* to without checking the watchpoint map.
*/
if (!JSObject::sparsifyDenseElements(cx, obj))
return false;
types::MarkTypePropertyNonData(cx, obj, propid);
WatchpointMap *wpmap = cx->compartment()->watchpointMap;
if (!wpmap) {
wpmap = cx->runtime()->new_<WatchpointMap>();
if (!wpmap || !wpmap->init()) {
js_ReportOutOfMemory(cx);
return false;
}
cx->compartment()->watchpointMap = wpmap;
}
return wpmap->watch(cx, obj, propid, handler, closure);
}
bool
WatchpointMap::markAllIteratively(JSTracer *trc)
{
JSRuntime *rt = trc->context->runtime;
if (rt->gcCurrentCompartment) {
WatchpointMap *wpmap = rt->gcCurrentCompartment->watchpointMap;
return wpmap && wpmap->markIteratively(trc);
}
bool mutated = false;
for (JSCompartment **c = rt->compartments.begin(); c != rt->compartments.end(); ++c) {
if ((*c)->watchpointMap)
mutated |= (*c)->watchpointMap->markIteratively(trc);
}
return mutated;
}
