Struct JsonStringValueDecoder 

pub struct JsonStringValueDecoder<T> { /* private fields */ }

Decodes one JSON string into an owned value via serde_json.

Type Parameters

• T: Target value type deserialized through Serde.

Examples

use qubit_codec::JsonStringValueDecoder;
use qubit_codec::ValueDecoder;
use serde::Deserialize;

#[derive(Debug, Deserialize, PartialEq)]
struct Point {
    x: i32,
    y: i32,
}

let mut decoder = JsonStringValueDecoder::<Point>::new();
let point = decoder.decode(r#"{"x":1,"y":2}"#).unwrap();
assert_eq!(point, Point { x: 1, y: 2 });

Implementations

impl<T> JsonStringValueDecoder<T>

pub const fn new() -> Self

Creates a JSON string decoder for values of type T.

Returns

Returns a stateless decoder without allocating or constructing a T.

Trait Implementations

impl<T: Clone> Clone for JsonStringValueDecoder<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Copy> Copy for JsonStringValueDecoder<T>

impl<T: Debug> Debug for JsonStringValueDecoder<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Default> Default for JsonStringValueDecoder<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> ValueDecoder<str> for JsonStringValueDecoder<T>

where T: DeserializeOwned,

type Error = Error

JSON syntax or target-value deserialization failure.

type Output = T

Owned value deserialized independently of the input string lifetime.

fn decode(&mut self, input: &str) -> Result<Self::Output, Self::Error>

Deserializes input from a JSON string.

Parameters

• input: One complete JSON value, optionally surrounded by whitespace.

Returns

Returns an owned T; decoding may allocate according to the target type.

Errors

Returns a JSON error for malformed or incomplete input, trailing non-whitespace data, or a value incompatible with T.