Enum Value 

pub enum Value {
    Null,
    Bool(bool),
    Number(f64),
    String(String),
    Array(Vec<Self>),
    Object(HashMap<String, Self>),
}

A generic value that can hold any data type.

Variants

Null

Null value

Bool(bool)

Boolean value

Number(f64)

Numeric value

String(String)

String value

Array(Vec<Self>)

Array of values

Object(HashMap<String, Self>)

Object (key-value map)

Implementations

impl Value

pub const fn null() -> Self

Create a new null value.

pub const fn bool(v: bool) -> Self

Create a new boolean value.

pub const fn number(v: f64) -> Self

Create a new number value.

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

Create a new string value.

pub const fn array(v: Vec<Self>) -> Self

Create a new array value.

pub const fn object(v: HashMap<String, Self>) -> Self

Create a new object value.

pub const fn is_null(&self) -> bool

Check if value is null.

pub const fn is_bool(&self) -> bool

Check if value is a boolean.

pub const fn is_number(&self) -> bool

Check if value is a number.

pub const fn is_string(&self) -> bool

Check if value is a string.

pub const fn is_array(&self) -> bool

Check if value is an array.

pub const fn is_object(&self) -> bool

Check if value is an object.

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

Get as boolean.

pub const fn as_number(&self) -> Option<f64>

Get as number.

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

Get as string.

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

Get as array.

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

Get as mutable array.

pub const fn as_object(&self) -> Option<&HashMap<String, Self>>

Get as object.

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

Get field from object.

pub fn require_array(&self) -> Result<&Vec<Self>, ExecutionError>

Get as array or return ExpectedArray error (DRY helper for apply_ methods).

pub fn extract_numbers(&self, field: &str) -> Result<Vec<f64>, ExecutionError>

Extract numeric values from array items by field name.

pub fn len(&self) -> usize

Get array length or object key count.

pub fn is_empty(&self) -> bool

Check if array or object is empty.

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 From<&str> for Value

fn from(v: &str) -> Self

Converts to this type from the input type.

impl From<String> for Value

fn from(v: String) -> Self

Converts to this type from the input type.

impl<T: Into<Self>> From<Vec<T>> for Value

fn from(v: Vec<T>) -> 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<f64> for Value

fn from(v: f64) -> 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 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