Trait IteratorExtTag 

pub trait IteratorExtTag {
    // Required method
    fn read_tag(&mut self) -> Result<Option<Tag>>;
}

Extension trait for reading tag from byte iterators.

This trait provides a convenient method to read tag directly from any iterator that yields bytes.

Example

use ::protobuf_core::IteratorExtTag;

let bytes = vec![0x08]; // tag 1:0 (field 1, wire type 0)
let mut iter = bytes.into_iter();
let tag = iter.read_tag().unwrap().unwrap();
assert_eq!(tag.field_number.as_u32(), 1);

Required Methods

fn read_tag(&mut self) -> Result<Option<Tag>>

Read a tag from this iterator.

Returns the Tag Ok(Some(tag)) if successfully read. Returns Ok(None) if no input is available (empty iterator). Returns Err(ProtobufError) if the tag is malformed.

Implementors

impl<I> IteratorExtTag for I

where I: Iterator<Item = u8>,