Struct TagRevWriter 

pub struct TagRevWriter { /* private fields */ }

Writes keys for the provided tags into a prepend-only buffer.

Implementations

impl TagRevWriter

pub fn new() -> Self

pub fn begin_field<B: ReverseBuf + ?Sized>( &mut self, tag: u32, wire_type: WireType, buf: &mut B, )

Encode the key delta to the given key into the buffer.

All fields must be encoded in order; this is enforced in the encoding by encoding each field’s tag as a non-negative delta from the previously encoded field’s tag. The tag delta is encoded in the bits above the lowest two bits in the key delta, which encode the wire type. When decoding, the wire type is taken as-is, and the tag delta added to the tag of the last field decoded.

pub fn finalize<B: ReverseBuf + ?Sized>(&mut self, buf: &mut B)

Finishes writing the current message by encoding the key of the first field that appeared.

Trait Implementations

impl Default for TagRevWriter

fn default() -> TagRevWriter

Returns the “default value” for a type.