Struct Number

pub struct Number { /* private fields */ }

Represents a number, whether integer or floating point.

Implementations

impl Number

pub fn is_i64(&self) -> bool

Returns true if the Number is an integer between i64::MIN and i64::MAX.

For any Number on which is_i64 returns true, as_i64 is guaranteed to return the integer value.

pub fn is_u64(&self) -> bool

Returns true if the Number is an integer between zero and u64::MAX.

For any Number on which is_u64 returns true, as_u64 is guaranteed to return the integer value.

pub fn is_f64(&self) -> bool

Returns true if the Number can be represented by f64.

For any Number on which is_f64 returns true, as_f64 is guaranteed to return the floating point value.

Currently this function returns true if and only if both is_i64 and is_u64 return false but this is not a guarantee in the future.

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

If the Number is an integer, represent it as i64 if possible. Returns None otherwise.

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

If the Number is an integer, represent it as u64 if possible. Returns None otherwise.

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

Represents the number as f64 if possible. Returns None otherwise.

pub fn from_f64(f: f64) -> Option<Number>

Converts a finite f64 to a Number. Infinite or NaN values are not numbers.

Trait Implementations

impl Clone for Number

fn clone(&self) -> Number

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Number

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

Formats the value using the given formatter.

impl From<&Number> for Number

fn from(json: &Number) -> Self

Converts to this type from the input type.

impl From<&Number> for Number

fn from(yaml: &Number) -> Self

Converts to this type from the input type.

impl From<i16> for Number

fn from(i: i16) -> Self

Converts to this type from the input type.

impl From<i32> for Number

fn from(i: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Number

fn from(i: i64) -> Self

Converts to this type from the input type.

impl From<i8> for Number

fn from(i: i8) -> Self

Converts to this type from the input type.

impl From<isize> for Number

fn from(i: isize) -> Self

Converts to this type from the input type.

impl From<u16> for Number

fn from(u: u16) -> Self

Converts to this type from the input type.

impl From<u32> for Number

fn from(u: u32) -> Self

Converts to this type from the input type.

impl From<u64> for Number

fn from(u: u64) -> Self

Converts to this type from the input type.

impl From<u8> for Number

fn from(u: u8) -> Self

Converts to this type from the input type.

impl From<usize> for Number

fn from(u: usize) -> Self

Converts to this type from the input type.

impl Ord for Number

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

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 PartialOrd for Number

fn partial_cmp(&self, other: &Number) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Number

impl StructuralPartialEq for Number