Struct bytecodec::json_codec::JsonDecoder

pub struct JsonDecoder<T>(_);

JSON decoder.

Note that this decodes items monolithically so very large items may impair real-time property of the system.

Examples

use bytecodec::{Decode, DecodeBuf};
use bytecodec::json_codec::JsonDecoder;
use serde_json::Value;

let mut decoder = JsonDecoder::<Value>::new();

decoder.decode(&mut DecodeBuf::new(b"[1, 2")).unwrap();
let json = decoder
   .decode(&mut DecodeBuf::new_as_eos(b", 3]"))
   .unwrap()
   .unwrap();

assert_eq!(json.to_string(), "[1,2,3]");

Methods

impl<T> JsonDecoder<T> where
    T: for<'de> Deserialize<'de>, 

pub fn new() -> Self

Makes a new JsonDecoder instance.

Trait Implementations

impl<T: Debug> Debug for JsonDecoder<T>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<T> Decode for JsonDecoder<T> where
    T: for<'de> Deserialize<'de>, 

type Item = T

The type of items to be decoded.

fn decode(&mut self, buf: &mut DecodeBuf) -> Result<Option<Self::Item>>

Consumes the given buffer (a part of a byte sequence), and decodes an item from it.

fn has_terminated(&self) -> bool

Returns true if the decoder cannot decode items anymore, otherwise false.

fn is_idle(&self) -> bool

Returns true if the decoder does not have an item that being decoded, otherwise false.

fn requiring_bytes_hint(&self) -> Option<u64>

Returns the lower bound of the number of bytes needed to decode the next item.

impl<T> Default for JsonDecoder<T> where
    T: for<'de> Deserialize<'de>, 

fn default() -> Self

Returns the "default value" for a type.