JSAtom *
SavedFrame::getSource()
{
const Value &v = getReservedSlot(JSSLOT_SOURCE);
JSString *s = v.toString();
return &s->asAtom();
}
JSAtom *
SavedFrame::getFunctionDisplayName()
{
const Value &v = getReservedSlot(JSSLOT_FUNCTIONDISPLAYNAME);
if (v.isNull())
return nullptr;
JSString *s = v.toString();
return &s->asAtom();
}
JSAtom *
js::ToAtom(ExclusiveContext *cx, typename MaybeRooted<Value, allowGC>::HandleType v)
{
if (!v.isString())
return ToAtomSlow<allowGC>(cx, v);
JSString *str = v.toString();
if (str->isAtom())
return &str->asAtom();
return AtomizeString(cx, str);
}
JSAtom*
js::ToAtom(ExclusiveContext* cx, typename MaybeRooted<Value, allowGC>::HandleType v)
{
if (!v.isString())
return ToAtomSlow<allowGC>(cx, v);
JSString* str = v.toString();
if (str->isAtom())
return &str->asAtom();
JSAtom* atom = AtomizeString(cx, str);
if (!atom && !allowGC) {
MOZ_ASSERT_IF(cx->isJSContext(), cx->asJSContext()->isThrowingOutOfMemory());
cx->recoverFromOutOfMemory();
}
return atom;
}
JSAtom *
js::ToAtom(ExclusiveContext *cx, typename MaybeRooted<Value, allowGC>::HandleType v)
{
if (!v.isString()) {
JSString *str = js::ToStringSlow<allowGC>(cx, v);
if (!str)
return NULL;
JS::Anchor<JSString *> anchor(str);
return AtomizeString<allowGC>(cx, str);
}
JSString *str = v.toString();
if (str->isAtom())
return &str->asAtom();
JS::Anchor<JSString *> anchor(str);
return AtomizeString<allowGC>(cx, str);
}
bool
JSCompartment::wrap(JSContext* cx, MutableHandleString strp)
{
MOZ_ASSERT(!cx->runtime()->isAtomsCompartment(this));
MOZ_ASSERT(cx->compartment() == this);
/* If the string is already in this compartment, we are done. */
JSString* str = strp;
if (str->zoneFromAnyThread() == zone())
return true;
/*
* If the string is an atom, we don't have to copy, but we do need to mark
* the atom as being in use by the new zone.
*/
if (str->isAtom()) {
cx->markAtom(&str->asAtom());
return true;
}
/* Check the cache. */
RootedValue key(cx, StringValue(str));
if (WrapperMap::Ptr p = crossCompartmentWrappers.lookup(CrossCompartmentKey(key))) {
strp.set(p->value().get().toString());
return true;
}
/* No dice. Make a copy, and cache it. */
JSString* copy = CopyStringPure(cx, str);
if (!copy)
return false;
if (!putWrapper(cx, CrossCompartmentKey(key), StringValue(copy)))
return false;
strp.set(copy);
return true;
}