Trait JsonNumber 

pub trait JsonNumber {
    // Required methods
    fn as_u64(&self) -> Option<u64>;
    fn as_i64(&self) -> Option<i64>;
    fn as_f64(&self) -> Option<f64>;
    fn as_str(&self) -> Cow<'_, str>;
    fn to_number(&self) -> Cow<'_, Number>;

    // Provided method
    fn is_integer(&self) -> bool { ... }
}

A JSON number, readable without constructing a ::serde_json::Number.

Required Methods

fn as_u64(&self) -> Option<u64>

fn as_i64(&self) -> Option<i64>

fn as_f64(&self) -> Option<f64>

fn as_str(&self) -> Cow<'_, str>

Decimal digits; the only form that holds values outside the primitives.

fn to_number(&self) -> Cow<'_, Number>

For cold paths: error construction and annotations.

Provided Methods

fn is_integer(&self) -> bool

type: integer checks call this per number: override it where the default’s JsonNumber::to_number round-trip is not free (e.g. decimal representations).

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl JsonNumber for &Number

fn as_u64(&self) -> Option<u64>

fn as_i64(&self) -> Option<i64>

fn as_f64(&self) -> Option<f64>

fn as_str(&self) -> Cow<'_, str>

fn to_number(&self) -> Cow<'_, Number>

impl JsonNumber for Number

fn as_u64(&self) -> Option<u64>

fn as_i64(&self) -> Option<i64>

fn as_f64(&self) -> Option<f64>

fn as_str(&self) -> Cow<'_, str>

fn to_number(&self) -> Cow<'_, Number>

Implementors