Enum Value 

pub enum Value {
    Null,
    Bool(bool),
    Number(Number),
    String(String),
    Array(Vec<Value>),
    Object(Map),
}

A self-describing JSON value.

Variants

Null

null

Bool(bool)

true / false

Number(Number)

Number (lossless through i128 / u128, see Number).

String(String)

string

Array(Vec<Value>)

array

Object(Map)

object (insertion-ordered Map)

Implementations

impl Value

pub fn is_null(&self) -> bool

Whether this is null.

pub fn is_bool(&self) -> bool

Whether this is a boolean.

pub fn is_number(&self) -> bool

Whether this is a number.

pub fn is_string(&self) -> bool

Whether this is a string.

pub fn is_array(&self) -> bool

Whether this is an array.

pub fn is_object(&self) -> bool

Whether this is an object.

pub fn as_str(&self) -> Option<&str>

The string, if this is a string.

pub fn as_bool(&self) -> Option<bool>

The boolean, if this is a boolean.

pub fn as_number(&self) -> Option<&Number>

The number reference, if this is a number.

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

Best-effort i64.

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

Best-effort u64.

pub fn as_i128(&self) -> Option<i128>

Exact i128 conversion when integral and in range.

pub fn as_u128(&self) -> Option<u128>

Exact u128 conversion when integral and in range.

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

Convert to f64.

pub fn as_array(&self) -> Option<&Vec<Value>>

The array reference, if this is an array.

pub fn as_array_mut(&mut self) -> Option<&mut Vec<Value>>

The mutable array reference, if this is an array.

pub fn as_object(&self) -> Option<&Map>

The object reference, if this is an object.

pub fn as_object_mut(&mut self) -> Option<&mut Map>

The mutable object reference, if this is an object.

pub fn get(&self, key: &str) -> Option<&Value>

Get a value by key (objects only).

pub fn get_mut(&mut self, key: &str) -> Option<&mut Value>

Get a value by key, mutable (objects only).

pub fn pointer(&self, pointer: &str) -> Option<&Value>

Locate a value by RFC 6901 JSON Pointer.

/a/b/0 descends into a -> b -> first array element; ~0 / ~1 escape ~ and /. The empty pointer returns self.

pub fn into_object(self) -> Option<Map>

Consume self into a Map (if object).

pub fn into_array(self) -> Option<Vec<Value>>

Consume self into a Vec (if array).

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Value

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

Formats the value using the given formatter.

impl Display for Value

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

Compact JSON text.

impl<'a> From<&'a Value> for Value

fn from(v: &'a Value) -> Self

Converts to this type from the input type.

impl From<&String> for Value

fn from(s: &String) -> Self

Converts to this type from the input type.

impl From<&str> for Value

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<()> for Value

fn from(_: ()) -> Self

Converts to this type from the input type.

impl From<Map> for Value

fn from(m: Map) -> Self

Converts to this type from the input type.

impl From<Number> for Value

fn from(n: Number) -> Self

Converts to this type from the input type.

impl<T: Into<Value>> From<Option<T>> for Value

fn from(v: Option<T>) -> Self

Converts to this type from the input type.

impl From<String> for Value

fn from(s: String) -> Self

Converts to this type from the input type.

impl From<Vec<Value>> for Value

fn from(v: Vec<Value>) -> Self

Converts to this type from the input type.

impl From<bool> for Value

fn from(v: bool) -> Self

Converts to this type from the input type.

impl From<char> for Value

fn from(c: char) -> Self

Converts to this type from the input type.

impl From<f32> for Value

fn from(v: f32) -> Self

Converts to this type from the input type.

impl From<f64> for Value

fn from(v: f64) -> Self

Converts to this type from the input type.

impl From<i8> for Value

fn from(v: i8) -> Self

Converts to this type from the input type.

impl From<i16> for Value

fn from(v: i16) -> Self

Converts to this type from the input type.

impl From<i32> for Value

fn from(v: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Value

fn from(v: i64) -> Self

Converts to this type from the input type.

impl From<i128> for Value

fn from(v: i128) -> Self

Converts to this type from the input type.

impl From<isize> for Value

fn from(v: isize) -> Self

Converts to this type from the input type.

impl From<u8> for Value

fn from(v: u8) -> Self

Converts to this type from the input type.

impl From<u16> for Value

fn from(v: u16) -> Self

Converts to this type from the input type.

impl From<u32> for Value

fn from(v: u32) -> Self

Converts to this type from the input type.

impl From<u64> for Value

fn from(v: u64) -> Self

Converts to this type from the input type.

impl From<u128> for Value

fn from(v: u128) -> Self

Converts to this type from the input type.

impl From<usize> for Value

fn from(v: usize) -> Self

Converts to this type from the input type.

impl Index<&str> for Value

fn index(&self, key: &str) -> &Value

Index access; panics on a missing key.

type Output = Value

The returned type after indexing.

impl Index<usize> for Value

fn index(&self, idx: usize) -> &Value

Index access; panics on out-of-range.

type Output = Value

The returned type after indexing.

impl<'de> NsonDeserialize<'de> for Value

fn nextdecode_into<D: FormatDecoder<'de>>( decoder: &mut D, out: &mut DecodeSlot<Self>, ) -> Result<(), D::Error>

Decode into out.

fn expecting() -> &'static str

Human-readable description of the value this type decodes from.

fn nextdecode<D: FormatDecoder<'de>>(decoder: &mut D) -> Result<Self, D::Error>

Decode and return a value.

impl NsonSchema for Value

const SCHEMA: TypeSchema = TypeSchema::Opaque

The compile-time structural description.

impl NsonSerialize for Value

fn nextencode<E: FormatEncoder>(&self, e: &mut E) -> Result<(), E::Error>

Next-encode self into encoder.

impl PartialEq for Value

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Value