Enum Value 

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

Owned JSON data. Objects retain member order and parsed objects have unique keys.

Variants

Null

JSON null.

Bool(bool)

JSON boolean.

Number(Number)

Exact JSON number.

String(String)

Unicode string.

Array(Vec<Value>)

Ordered values.

Object(Vec<(String, Value)>)

Ordered name/value members.

Implementations

impl Value

pub fn string(value: impl Into<String>) -> Self

Make a JSON string.

pub fn u64(value: u64) -> Self

Make an unsigned number without converting to floating point.

pub fn i64(value: i64) -> Self

Make a signed number without converting to floating point.

pub fn object<const N: usize>(fields: [(&str, Value); N]) -> Self

Make an object, with later duplicate names replacing earlier values.

pub fn insert(&mut self, key: &str, value: Value) -> bool

Insert or replace an object member; false when this value is not an object.

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

Look up an object member.

pub fn as_object(&self) -> Option<&[(String, Value)]>

Borrow an object member list.

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

Borrow an array.

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

Borrow a string.

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

Read a boolean.

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

Read an unsigned integer token.

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

Read a signed integer token.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Self

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 Default for Value

fn default() -> Value

Returns the “default value” for a type.

impl Eq for Value

impl Field for Value

a free-form member (configuration of a plugin, a service, …)

fn put(&self) -> Value

fn take(v: Option<&Value>) -> Self

impl PartialEq for Value

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Value