- From: Jonas Sicking <jonas@sicking.cc>
- Date: Mon, 6 Jun 2011 19:54:16 -0700
- To: Israel Hilerio <israelh@microsoft.com>
- Cc: "public-webapps@w3.org" <public-webapps@w3.org>, Cullen Sauls <cullens@microsoft.com>, Victor Ngo <vicngo@microsoft.com>
On Mon, Jun 6, 2011 at 7:19 PM, Israel Hilerio <israelh@microsoft.com> wrote: > On Tue, Apr 26, 2011 at 10:05 PM, Jonas Sicking wrote: >> On Tue, Apr 26, 2011 at 8:23 PM, Cameron McCormack <cam@mcc.id.au> >> wrote: >> > Jonas Sicking: >> >> However it appears that that extended attribute is not present in >> >> newer versions of the WebIDL spec. Cameron, is this something that is >> >> planned to be brought back? It seems like a useful feature to avoid >> >> having to define in prose this rather common requirement. We should >> >> also define which exception should be thrown if such a [NoNull] >> >> requirement was violated. >> > >> > I plan to make object types non-nullable by default, and to allow null >> > you would write "MyInterface?". >> > >> > http://www.w3.org/Bugs/Public/show_bug.cgi?id=10640. >> > >> > I will most likely make passing in null for a non-nullable object type >> > result in a TypeError being thrown. >> >> Excellent! I think that should mean that no changes are needed to the >> IndexedDB spec at all. I can't think of any instances where we use specific >> interface names while still accepting null values. >> >> / Jonas >> >> / Jonas > > Based on this conversation, we agreed that we wanted to throw a TypeError when a non-nullable parameter was passed a null argument. This implies to me, for example, that if we were to pass a null value for the key parameter of IDBObjectStore.put we will throw a TypeError (i.e. InvalidArgument). We're assuming this Exception takes precedence over any IDB Exceptions (i.e. DATA_ERR). > > This seems like a common pattern we want to enforce everywhere, throwing a TypeError before any type of IDBError when passing null to non-nullable arguments. Do you agree? Yes. > The reason I'm asking is that we found FireFox does this a little different. They are throwing a DATA_ERR when passing null as a key value. I just want to make sure we're on the same page. I expect that we'll end up having to change lots of exceptions in the Firefox implementation. / Jonas
Received on Tuesday, 7 June 2011 02:55:13 UTC