bool
WrapperOwner::get(JSContext* cx, HandleObject proxy, HandleValue receiver,
HandleId id, MutableHandleValue vp)
{
ObjectId objId = idOf(proxy);
JSVariant receiverVar;
if (!toVariant(cx, receiver, &receiverVar))
return false;
JSIDVariant idVar;
if (!toJSIDVariant(cx, id, &idVar))
return false;
AuxCPOWData* data = AuxCPOWDataOf(proxy);
if (data->isDOMObject &&
idVar.type() == JSIDVariant::TnsString &&
idVar.get_nsString().EqualsLiteral("QueryInterface"))
{
// Handle QueryInterface on DOM Objects specially since we can assume
// certain things about their implementation.
RootedFunction qi(cx, JS_NewFunction(cx, CPOWDOMQI, 1, 0,
"QueryInterface"));
if (!qi)
return false;
vp.set(ObjectValue(*JS_GetFunctionObject(qi)));
return true;
}
JSVariant val;
ReturnStatus status;
if (!SendGet(objId, receiverVar, idVar, &status, &val))
return ipcfail(cx);
LOG_STACK();
if (!ok(cx, status))
return false;
if (!fromVariant(cx, val, vp))
return false;
if (idVar.type() == JSIDVariant::TnsString &&
idVar.get_nsString().EqualsLiteral("toString")) {
RootedFunction toString(cx, JS_NewFunction(cx, CPOWToString, 0, 0,
"toString"));
if (!toString)
return false;
RootedObject toStringObj(cx, JS_GetFunctionObject(toString));
if (!JS_DefineProperty(cx, toStringObj, "__cpow__", vp, JSPROP_PERMANENT | JSPROP_READONLY))
return false;
vp.set(ObjectValue(*toStringObj));
}
return true;
}
bool
JavaScriptShared::fromJSIDVariant(JSContext* cx, const JSIDVariant& from, MutableHandleId to)
{
switch (from.type()) {
case JSIDVariant::TSymbolVariant: {
Symbol* sym = fromSymbolVariant(cx, from.get_SymbolVariant());
if (!sym)
return false;
to.set(SYMBOL_TO_JSID(sym));
return true;
}
case JSIDVariant::TnsString:
return convertGeckoStringToId(cx, from.get_nsString(), to);
case JSIDVariant::Tint32_t:
to.set(INT_TO_JSID(from.get_int32_t()));
return true;
default:
return false;
}
}