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Implement Serialize for flexbuffer::Reader (#6635)

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* Implement Serialize for flexbuffer::Reader

* bump version

* Remove use of experimantal or-patterns

* Remove more use of experimantal or-patterns

Co-authored-by: Casper Neo <cneo@google.com>
This commit is contained in:
Casper
2021-05-10 23:15:46 -04:00
committed by GitHub
parent a1730fcea8
commit 8fd10606c1
9 changed files with 125 additions and 40 deletions
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9
rust/flexbuffers/src/buffer.rs
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@@ -1,6 +1,6 @@
use std::ops::{Deref, Range};
/// The underlying buffer that is used by a flexbuffer Reader.
/// The underlying buffer that is used by a flexbuffer Reader.
///
/// This allows for custom buffer implementations as long as they can be viewed as a &[u8].
pub trait Buffer: Deref<Target = [u8]> + Sized {
@@ -14,12 +14,12 @@ pub trait Buffer: Deref<Target = [u8]> + Sized {
/// A BufferString which will live at least as long as the Buffer itself.
///
/// Deref's to UTF-8 `str`, and only generated from the `buffer_str` function Result.
type BufferString: Deref<Target = str> + Sized;
type BufferString: Deref<Target = str> + Sized + serde::ser::Serialize;
/// This method returns an instance of type Self. This allows for lifetimes to be tracked
/// in cases of deserialization.
///
/// It also lets custom buffers manage reference counts.
/// It also lets custom buffers manage reference counts.
///
/// Returns None if:
/// - range start is greater than end
@@ -48,7 +48,7 @@ pub trait Buffer: Deref<Target = [u8]> + Sized {
Self::empty().buffer_str().unwrap()
}
/// Attempts to convert the given buffer to a custom string type.
/// Attempts to convert the given buffer to a custom string type.
///
/// This should fail if the type does not have valid UTF-8 bytes, and must be zero copy.
fn buffer_str(&self) -> Result<Self::BufferString, std::str::Utf8Error>;
@@ -78,4 +78,3 @@ impl<'de> Buffer for &'de [u8] {
std::str::from_utf8(self)
}
}