We want to return $pb$::FieldEntry<'_, $msg_type$> for msg_mut accessors as opposed to the current state (returning $Msg$Mut directly).
In this CL, we pave the way to implementing field entry returns.
We introduce { MessagePresentMutData, MessageAbsentMutData } and impl { ProxiedWithRawVTable, ProxiedWithRawOptionalVTable }. I initially tried a blanket impl approach, but it collided with the already existing PrimitiveVTable constructs; perhaps worth revisiting post 0.6.
In a followup, we'll flesh out the bodies. Lastly, we'll perform the swapover by
replacing $field$_mut with $field$_entry, updating all related tests.
PiperOrigin-RevId: 599282850
- Only prepend r# to fields when needed instead of always
- Append '__mangled_because_symbol_is_a_rust_raw_identifier' to names like 'Self' which can't be used legally even with an r# prefix
Also use the same check to prepend r# on:
- Message names (eg `message Self {}`)
- oneof names
- oneof case names
- enum names
- enum case names
- module names (e.g. 'package google.type')
PiperOrigin-RevId: 599153141
We now support fields with bytes as map values e.g. map<i32, bytes>. The implementation for the C++ runtime was straightforward. The majority of the changes in this CL are about the UPB runtime. In UPB, when we insert Rust bytes/string into the map we need to first copy the bytes onto the maps arena. To support this I have rewritten the macro that implements the ProxiedInMapValue types. I refactored the functionality to convert between UPB and Rust types into the 'UpbTypeConversions' trait. This trait has a function 'to_message_value_if_required' which does the copying for bytes and strings.
PiperOrigin-RevId: 599118416
This adds private methods of:
-- .raw_msg() to Msg+MsgMut+MsgView
-- .raw_arena() to Msg+MsgMut [upb kernel only]
And updates the accessors to use the self.raw_msg() / self.raw_arena().
A couple more things will need to be changed before the accessors can be verbatim reused in Msg/MsgView/MsgMut which will be mailed separately.
PiperOrigin-RevId: 598869392
- ProxiedInMapValue is defined in maps.rs, and no longer in the runtime files {upb, cpp}.rs.
- ProxiedInMapValue's methods accept and return Proxied types.
- InnerMapMut no longer has any generic type parameters.
- Through this refactoring the Map type is no longer a ZST. Creating a new map is now as simple as `Map::new()`.
PiperOrigin-RevId: 597765165
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