The purpose of this trait is that it is declared as a supertrait of the traits that we don't want application code to implement (like "Proxied" and "MessageView"); application code can see those traits but not the supertrait, which enables them to use them but not implement them.
PiperOrigin-RevId: 657555025
I also added a blanket implementation of `IntoProxied<T> for T` so that we
don't have to duplicate this no-op implementation for all our types.
PiperOrigin-RevId: 656465755
Rather than two traits (MutProxy subtrait of ViewProxy), instead have three traits (MutProxy subtrait of Proxy, and ViewProxy subtrait of Proxy).
This makes things more consistent, including that (MutProxied subtraits Proxied) is now more parallel to (MutProxy subtraits Proxy).
ViewProxy is largely a marker trait here but leaves a spot for methods that should be on ViewProxies but not MutProxies if those do show up later.
PiperOrigin-RevId: 653661953
* The public Repeated::{push, set} and Map::insert methods now accept any value that implements IntoProxied<T>, allowing us to move owned values instead of copying them.
* This change also updates the FFI layer for strings/bytes in the repeated and maps thunks to accept a std::string* that can be moved rather than a PtrAndLen type that needs to be copied.
* Tests are updated to no longer .as_view() when setting a message / string on a repeated / map field. The IntoProxied trait makes calling .as_view() obsolete.
PiperOrigin-RevId: 650580788
We modify set_<repeated_field> to accept the IntoProxied type as the value and move the value (avoid copying) whenever possible.
For UPB:
- We fuse the arena of Repeated<T> with the parent message arena.
- We use upb_Message_SetBaseField to set the upb_Array contained in the Repeated<T>.
For C++:
- We generate an additional setter thunk that moves the value.
- The move assignment operator of RepeatedField/RepeatedPtrField is specialized. In order to adhere to the layering check we need to add '#include' statements for all .proto imports to the generated thunks.pb.cc.
PiperOrigin-RevId: 631010333
Proxied is not marked as Sized yet, because ProtoStr is still dynamically sized. We will wait for clarity for the string types before marking Proxied Sized.
PiperOrigin-RevId: 627707544
The intent of this directory would be for a layer of Rust bindings that directly map to upb semantics; Rust Protobuf runtime would be layer on top of that Rust, instead of directly on the upb C api.
PiperOrigin-RevId: 624282429
* Matches the C++ Protobuf API.
* Improves ergonomics by allowing users to provide Into, FromIterator, et. al. implementations.
* Allows owned types to be returned from functions.
PiperOrigin-RevId: 615008080
- size_hint must be implemented as described in the docs
- len/size_hint must return the number of items remaining in the iterator, not the size of the container
PiperOrigin-RevId: 604704172
A public "raw" field in a safe wrapper is guaranteed unsound!
This makes repeated and map inner access consistent and
avoids exposing raw internals.
It also provides the accessors necessary for implementing map
access for external types.
PiperOrigin-RevId: 604405543
When we implement Deref for RepeatedMut we cast it to a RepeatedView. The safety comments state that this is sound because both RepeatdView and RepeatedMut are repr(transparent) over InnerRepeatedMut. However, this has no longer been true after a recent change. RepeatedView and RepeatedMut had different layouts.
This change fixes the soundness issue by type casting the RawRepeatedField of a RepeatedMut to a RepeatedView. This is sound because RepeatedReview is repr(transparent) over RawRepeatedField.
PiperOrigin-RevId: 597488476
- Rename most usage of `'a` to `'msg`
- Remove a no-op unused lifetime param for `remove` in maps
- Elide lifetimes recommended by clippy
PiperOrigin-RevId: 589878364
This significantly simplifies the internals of PrimitiveMut,
and removes the need to refactor BytesMut and ProtoStrMut
to have the same runtime branching.
PiperOrigin-RevId: 589292565
This change names the lifetime of Mut<'a, T> and requires that T outlives 'a. The motivation for this change came up while implementing `Map<K, ProtoStr>`. The Map implementation makes it so that `V` needs to implement the `MapWithKeyOps` trait which has an associated type with a lifetime (`Value<'a>`. The lifetime bound on `T` ensures that e.g. for `MapWithKeyOps<Value<'b>=&'b ProtoStr>` `'a` outlives `'b`.
PiperOrigin-RevId: 585657154
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