mirror of
https://github.com/protocolbuffers/protobuf
synced 2026-08-26 02:23:14 -04:00
2b3058dcff
This CL contains no functional change, it is a pure splitting of the existing files. I elected to move the C++ kernel files to `cpp_kernel/` which already contained the C++ API for the C++ kernel. Unfortunately this required removing the existing `third_party/protobuf/rust/cpp_kernel/BUILD` file, because, the Rust parts of the cpp kernel have circular dependencies with the shared code in `third_party/protobuf/rust`. PiperOrigin-RevId: 886884124
36 lines
1.1 KiB
Rust
36 lines
1.1 KiB
Rust
use super::*;
|
|
|
|
impl From<&ProtoStr> for PtrAndLen {
|
|
fn from(s: &ProtoStr) -> Self {
|
|
let bytes = s.as_bytes();
|
|
Self { ptr: bytes.as_ptr(), len: bytes.len() }
|
|
}
|
|
}
|
|
|
|
/// Kernel-specific owned `string` and `bytes` field type.
|
|
#[doc(hidden)]
|
|
pub struct InnerProtoString(OwnedArenaBox<[u8]>);
|
|
|
|
impl InnerProtoString {
|
|
pub(crate) fn as_bytes(&self) -> &[u8] {
|
|
&self.0
|
|
}
|
|
|
|
#[doc(hidden)]
|
|
pub fn into_raw_parts(self) -> (PtrAndLen, Arena) {
|
|
let (data_ptr, arena) = self.0.into_parts();
|
|
(unsafe { data_ptr.as_ref().into() }, arena)
|
|
}
|
|
}
|
|
|
|
impl From<&[u8]> for InnerProtoString {
|
|
fn from(val: &[u8]) -> InnerProtoString {
|
|
let arena = Arena::new();
|
|
let in_arena_copy = arena.copy_slice_in(val).unwrap();
|
|
// SAFETY:
|
|
// - `in_arena_copy` is valid slice that will live for `arena`'s lifetime and
|
|
// this is the only reference in the program to it.
|
|
// - `in_arena_copy` is a pointer into an allocation on `arena`
|
|
InnerProtoString(unsafe { OwnedArenaBox::new(Into::into(in_arena_copy), arena) })
|
|
}
|
|
}
|