pub trait FromBytes<'a>: Sized {
// Required method
fn from_bytes(buf: &mut &'a [u8]) -> Result<Self, FromBytesError>;
// Provided method
fn from_maybe_bytes(
buf: Option<&mut &'a [u8]>,
) -> Result<Self, FromBytesError> { ... }
}Expand description
Deserialize a field from a byte buffer
Required Methods§
Sourcefn from_bytes(buf: &mut &'a [u8]) -> Result<Self, FromBytesError>
fn from_bytes(buf: &mut &'a [u8]) -> Result<Self, FromBytesError>
Read the binary representation of a field and return the parsed representation
Note: the argument is a mutable reference to an immutable slice. While the contents
of the slice cannot be modified, the slice itself can. Every call to from_bytes consumes
a number of bytes from the beginning of the slice.
Provided Methods§
Sourcefn from_maybe_bytes(buf: Option<&mut &'a [u8]>) -> Result<Self, FromBytesError>
fn from_maybe_bytes(buf: Option<&mut &'a [u8]>) -> Result<Self, FromBytesError>
Read the binary representation of a field from a buffer that may or may not exist
The default implementation returns an error when the buffer does not exist, but the blanket
impl for Option<T> effectively returns Ok(None)
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.