Enum Number 

pub enum Number {
    I64(i64),
    U64(u64),
    F64(f64),
}

Represents a TOON number.

TOON supports signed integers, unsigned integers, and floating point numbers.

Examples

use serde_toon2::{Number, Value};

let int = Number::I64(-42);
let uint = Number::U64(42);
let float = Number::F64(3.14);

assert_eq!(int.as_i64(), Some(-42));
assert_eq!(uint.as_u64(), Some(42));
assert_eq!(float.as_f64(), 3.14);

Variants

I64(i64)

A signed 64-bit integer.

U64(u64)

An unsigned 64-bit integer.

F64(f64)

A 64-bit floating point number.

Implementations

impl Number

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

Tries to convert this number to an i64.

Returns None if the conversion would lose precision or overflow.

Examples

use serde_toon2::Number;

assert_eq!(Number::I64(42).as_i64(), Some(42));
assert_eq!(Number::U64(42).as_i64(), Some(42));
assert_eq!(Number::F64(42.0).as_i64(), Some(42));
assert_eq!(Number::F64(42.5).as_i64(), None);

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

Tries to convert this number to a u64.

Returns None if the conversion would lose precision or overflow.

Examples

use serde_toon2::Number;

assert_eq!(Number::U64(42).as_u64(), Some(42));
assert_eq!(Number::I64(42).as_u64(), Some(42));
assert_eq!(Number::I64(-42).as_u64(), None);
assert_eq!(Number::F64(42.0).as_u64(), Some(42));
assert_eq!(Number::F64(42.5).as_u64(), None);

pub fn as_f64(&self) -> f64

Converts this number to an f64.

This conversion is always possible, though very large integers may lose precision.

Examples

use serde_toon2::Number;

assert_eq!(Number::I64(42).as_f64(), 42.0);
assert_eq!(Number::U64(42).as_f64(), 42.0);
assert_eq!(Number::F64(3.14).as_f64(), 3.14);

pub fn is_i64(&self) -> bool

Returns true if this number is stored as an i64.

Examples

use serde_toon2::Number;

assert!(Number::I64(42).is_i64());
assert!(!Number::U64(42).is_i64());
assert!(!Number::F64(42.0).is_i64());

pub fn is_u64(&self) -> bool

Returns true if this number is stored as a u64.

Examples

use serde_toon2::Number;

assert!(Number::U64(42).is_u64());
assert!(!Number::I64(42).is_u64());
assert!(!Number::F64(42.0).is_u64());

pub fn is_f64(&self) -> bool

Returns true if this number is stored as an f64.

Examples

use serde_toon2::Number;

assert!(Number::F64(3.14).is_f64());
assert!(!Number::I64(42).is_f64());
assert!(!Number::U64(42).is_f64());

Trait Implementations

impl Clone for Number

fn clone(&self) -> Number

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Number

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Number

fn deserialize<D>( deserializer: D, ) -> Result<Number, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Number

fn eq(&self, other: &Number) -> 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 Serialize for Number

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Number