Struct JsonNum 

pub struct JsonNum { /* private fields */ }

A JSON number span — (start, end) into the original input.

Numbers are not eagerly decoded — JSON numbers are arbitrary-precision decimal and there is no Rust primitive that losslessly fits all of them. Decoding is the consumer’s choice via as_i64, as_u64, as_f64.

Implementations

impl JsonNum

pub const fn start(&self) -> u32

pub const fn end(&self) -> u32

pub fn raw_bytes<'input>(&self, input: &'input [u8]) -> Option<&'input [u8]>

Raw bytes of the number literal, taken from the original input.

pub fn as_str<'input>(&self, input: &'input [u8]) -> &'input str

The raw number text. Always ASCII (lexer guarantees this).

pub fn is_float(&self, input: &[u8]) -> bool

True if the literal contains ., e, or E — i.e. is not an integer.

pub fn as_i64(&self, input: &[u8]) -> Result<i64, ErrorKind>

pub fn as_u64(&self, input: &[u8]) -> Result<u64, ErrorKind>

pub fn as_i128(&self, input: &[u8]) -> Result<i128, ErrorKind>

Decode the literal as i128. Routes through str::parse — 128-bit JSON integers are rare enough that the bespoke fast paths used for i64/u64 are not justified.

pub fn as_u128(&self, input: &[u8]) -> Result<u128, ErrorKind>

Decode the literal as u128.

pub fn as_f64(&self, input: &[u8]) -> Result<f64, ErrorKind>

Trait Implementations

impl Clone for JsonNum

fn clone(&self) -> JsonNum

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JsonNum

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

Formats the value using the given formatter.

impl PartialEq for JsonNum

fn eq(&self, other: &JsonNum) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for JsonNum

impl Eq for JsonNum

impl StructuralPartialEq for JsonNum