Trait VariantValue 

pub trait VariantValue: FromLiteral {
    type VariantArray: ConcreteVariantArray<Value = Self>;
    type VariantObject: ConcreteVariantObject<Value = Self>;

    // Required methods
    fn is_null(&self) -> bool;
    fn is_boolean(&self) -> bool;
    fn is_string(&self) -> bool;
    fn is_array(&self) -> bool;
    fn is_object(&self) -> bool;
    fn as_bool(&self) -> Option<bool>;
    fn as_str(&self) -> Option<&str>;
    fn as_array(&self) -> Option<&Self::VariantArray>;
    fn as_object(&self) -> Option<&Self::VariantObject>;
    fn is_less_than(&self, other: &Self) -> bool;
    fn is_equal_to(&self, other: &Self) -> bool;
}

A trait for any variant value.

Required Associated Types

type VariantArray: ConcreteVariantArray<Value = Self>

The type of the array variant.

type VariantObject: ConcreteVariantObject<Value = Self>

The type of the object variant.

Required Methods

fn is_null(&self) -> bool

Whether the value is a null.

fn is_boolean(&self) -> bool

Whether the value is a boolean.

fn is_string(&self) -> bool

Whether the value is a number.

fn is_array(&self) -> bool

Whether the value is an array.

fn is_object(&self) -> bool

Whether the value is an object.

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

Convert the value to a bool; None if the value is not an array.

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

Convert the value to a str; None if the value is not a string.

fn as_array(&self) -> Option<&Self::VariantArray>

Convert the value to an array; None if the value is not an array.

fn as_object(&self) -> Option<&Self::VariantObject>

Convert the value to an object; None if the value is not an object.

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

Whether self is less than another value.

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

Whether self is equal to another value.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl VariantValue for Value

Available on crate feature json only.

type VariantArray = Vec<Value>

type VariantObject = Map<String, Value>

fn is_null(&self) -> bool

fn is_boolean(&self) -> bool

fn is_string(&self) -> bool

fn is_array(&self) -> bool

fn is_object(&self) -> bool

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

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

fn as_array(&self) -> Option<&Self::VariantArray>

fn as_object(&self) -> Option<&Self::VariantObject>

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

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

impl VariantValue for Value

Available on crate feature toml only.

type VariantArray = Vec<Value>

type VariantObject = Map<String, Value>

fn is_null(&self) -> bool

fn is_boolean(&self) -> bool

fn is_string(&self) -> bool

fn is_array(&self) -> bool

fn is_object(&self) -> bool

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

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

fn as_array(&self) -> Option<&Self::VariantArray>

fn as_object(&self) -> Option<&Self::VariantObject>

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

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

Implementors