Before this, a stream error would not be readable by user code, as the
`recv_features()` function would not even attempt to parse it. This
change allows application code to react to stream errors which are
received before stream features are received.
skip-changelog, because there's no release with the xmlstream module
yet.
This was forgotten in 0f0759b207.
That element is only specified in the XML schema, its semantics aren’t
defined anywhere, but we can guess them anyway.
The only missing check is that #[xml(element)] doesn’t support filtering
on elements with a specific name yet.
skip-changelog: This isn’t a user-visible change.
Stop parsing xml:lang manually, instead use the #[xml(lang)] meta which
tracks it using the XML semantics, inheriting it from the most recent
ancestor.
skip-changelog: This isn’t a user-facing change.
So far this new meta doesn’t work for the BTreeMap<Lang, String>
pattern, which is often used to provide multiple versions of a payload.
skip-changelog: This isn’t a user-facing change.
This gives us all the goodies of `default`, `type_` and `codec` without
having to duplicate lots of code (and I think the `match`-iness of the
new macro code is still within limits).
However, we still keep them as separate `#[xml(..)]` attributes, because
their semantics are very different and it is sensible to make them stand
out.
skip-changelog, because `#[xml(lang)]` was introduced in this version.
It is not necessary anymore, because we switched from `IntoXml` to
`AsXml`, allowing `transform` to work with a reference instead of
consuming its input.
Before that, `try_from_element` was the only way to fallibly attempt to
parse something from `Element` without having to clone the entire DOM.
Because this attribute may occur in random places, it makes no sense
failing on it. We discard it after attribute processing though, so it
can still be captured by structs which are explicitly interested in it.
This is still far from being a full fix. Still, we can avoid the lang
attribute (by allowing discarding the `xml:lang` value via the feature
introduced a couple commits ago) and we can avoid emitting `xml:lang=""`
where no language was previously set using the mechanism introduced for
<message/> in 5172fb5e.
The test case which is added fails to compile unless one puts the
`parent` field before the `id` field. The cause is explained somewhat by
the change, but I'll spell it out here nontheless.
Previously, the loop in `Compound::make_as_item_iter_statemachine`
assumed that the serialisation order of fields would match their
declaration order. That is not generally true: attributes must be
serialised before element content, because they must be emitted before
the element header is closed.
This change thus splits the generated states into "header" states (for
everything before the end of the element header (think `>`)) and
"body" states (for everything after and including the end of the
element header). After all fields have been processed, we can then
add the data fields of the body fields to the header states so that
they are carried through the generated state machine until they are
needed in the body.
Separate from the macro_tests module because it doesn't actually test
macros, it uses it as a convenience.
Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>
The idna crate validates against UTS 46, which supports domains using
either IDNA2003 or IDNA2008. This allows us to support both old and
new internationalized domain names.
This dependency isn’t a new one in the tree, as hickory-proto, url and
tokio-xmpp all were already depending on it.
There are a bunch of other checks that have to be performed, this is
inspired by slixmpp’s JID implementation.
This function always appends to an existing string, so by passing it a
String directly we can avoid superfluous allocations.
Also tokio-xmpp was doing a bunch of &str to String for no reason around
there, let’s remove that too.
This allows exactly one arbitrary payload in any element, and is handled
after every other element with a more specific matcher has been parsed.
Both the #[xml(element(n = 1))] meta and its shortcut #[xml(element)]
are allowed and treated the exact same way.
