Enum Value 

pub enum Value {
    Null,
    Bool(bool),
    Int(i64),
    Float(f64),
    String(String),
    Binary(Binary),
    Timestamp(Timestamp),
    List(Vec<Value>),
    Map(BTreeMap<String, Value>),
}

Represents a valid JASN value.

Variants

Null

Null value.

Bool(bool)

Boolean value (true or false).

Int(i64)

64-bit signed integer.

Float(f64)

64-bit floating-point number.

String(String)

UTF-8 string.

Binary(Binary)

Binary data (byte array).

Timestamp(Timestamp)

Timestamp with timezone (ISO8601/RFC3339 compatible).

List(Vec<Value>)

Ordered list of values.

Map(BTreeMap<String, Value>)

Map of string keys to values.

Implementations

impl Value

pub fn is_null(&self) -> bool

Returns true if the value is Self::Null.

pub fn is_bool(&self) -> bool

Returns true if the value is Self::Bool.

pub fn is_int(&self) -> bool

Returns true if the value is Self::Int.

pub fn is_float(&self) -> bool

Returns true if the value is Self::Float.

pub fn is_string(&self) -> bool

Returns true if the value is Self::String.

pub fn is_binary(&self) -> bool

Returns true if the value is Self::Binary.

pub fn is_timestamp(&self) -> bool

Returns true if the value is Self::Timestamp.

pub fn is_list(&self) -> bool

Returns true if the value is Self::List.

pub fn is_map(&self) -> bool

Returns true if the value is Self::Map.

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

Returns the bool value if this is a Self::Bool, otherwise None.

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

Returns the i64 value if this is a Self::Int, otherwise None.

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

Returns the f64 value if this is a Self::Float, otherwise None.

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

Returns the str if this is a Self::String, otherwise None.

pub fn as_binary(&self) -> Option<&Binary>

Returns the Binary if this is a Self::Binary, otherwise None.

pub fn as_timestamp(&self) -> Option<&Timestamp>

Returns the Timestamp value if this is a Self::Timestamp, otherwise None.

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

Returns the list of values if this is a Self::List, otherwise None.

pub fn as_map(&self) -> Option<&BTreeMap<String, Value>>

Returns the map of key-value pairs if this is a Self::Map, otherwise None.

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

Returns a mutable reference to the list of values if this is a Self::List, otherwise None.

pub fn as_map_mut(&mut self) -> Option<&mut BTreeMap<String, Value>>

Returns a mutable reference to the map of key-value pairs if this is a Self::Map, otherwise None.

pub fn take(&mut self) -> Value

Takes the value, leaving Self::Null in its place.

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 Default for Value

fn default() -> Value

Returns the “default value” for a type.

impl Display for Value

Display implementation for Value using debug formatting.

For proper JASN formatting, use the jasn crate’s formatting functions.

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

Formats the value using the given formatter.

impl<K, V> From<&[(K, V)]> for Value

where K: Into<String> + Clone, V: Into<Value> + Clone,

fn from(slice: &[(K, V)]) -> Self

Converts to this type from the input type.

impl<K, V, const N: usize> From<&[(K, V); N]> for Value

where K: Into<String> + Clone, V: Into<Value> + Clone,

fn from(arr: &[(K, V); N]) -> Self

Converts to this type from the input type.

impl<V> From<&[V]> for Value

where V: Into<Value> + Clone,

fn from(slice: &[V]) -> Self

Converts to this type from the input type.

impl<V, const N: usize> From<&[V; N]> for Value

where V: Into<Value> + Clone,

fn from(arr: &[V; N]) -> Self

Converts to this type from the input type.

impl From<&str> for Value

fn from(value: &str) -> Self

Converts to this type from the input type.

impl<K, V, const N: usize> From<[(K, V); N]> for Value

where K: Into<String>, V: Into<Value>,

fn from(arr: [(K, V); N]) -> Self

Converts to this type from the input type.

impl<V, const N: usize> From<[V; N]> for Value

where V: Into<Value>,

fn from(arr: [V; N]) -> 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<Binary> for Value

fn from(value: Binary) -> Self

Converts to this type from the input type.

impl<'a> From<Cow<'a, str>> for Value

fn from(value: Cow<'a, str>) -> Self

Converts to this type from the input type.

impl From<OffsetDateTime> for Value

fn from(value: Timestamp) -> Self

Converts to this type from the input type.

impl<V> From<Option<V>> for Value

where V: Into<Value>,

fn from(opt: Option<V>) -> Self

Converts to this type from the input type.

impl From<String> for Value

fn from(value: String) -> Self

Converts to this type from the input type.

impl<V> From<Vec<V>> for Value

where V: Into<Value>,

fn from(vec: Vec<V>) -> Self

Converts to this type from the input type.

impl From<bool> for Value

fn from(value: bool) -> Self

Converts to this type from the input type.

impl From<f64> for Value

fn from(value: f64) -> Self

Converts to this type from the input type.

impl From<i64> for Value

fn from(value: i64) -> Self

Converts to this type from the input type.

impl<K, V> FromIterator<(K, V)> for Value

where K: Into<String>, V: Into<Value>,

fn from_iter<I: IntoIterator<Item = (K, V)>>(iter: I) -> Self

Creates a value from an iterator.

impl<V> FromIterator<V> for Value

where V: Into<Value>,

fn from_iter<I: IntoIterator<Item = V>>(iter: I) -> Self

Creates a value from an iterator.

impl PartialEq<&str> for Value

fn eq(&self, other: &&str) -> 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 PartialEq<String> for Value

fn eq(&self, other: &String) -> 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 PartialEq<bool> for Value

fn eq(&self, other: &bool) -> 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 PartialEq<f64> for Value

fn eq(&self, other: &f64) -> 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 PartialEq<i64> for Value

fn eq(&self, other: &i64) -> 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 PartialEq<str> for Value

fn eq(&self, other: &str) -> 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 PartialEq for Value

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