Trait ObjectRef

pub trait ObjectRef<'a>: Copy {
    type JsonRef: JsonRef<'a>;

    // Required methods
    fn len(self) -> usize;
    fn get(self, key: &str) -> Option<Self::JsonRef>;
    fn list(self) -> Vec<(&'a str, Self::JsonRef)>;
    fn list_value(self) -> Vec<Self::JsonRef>;

    // Provided method
    fn is_empty(self) -> bool { ... }
}

A trait for borrowed JSON objects.

Required Associated Types

type JsonRef: JsonRef<'a>

The type of borrowed JSON values.

Required Methods

fn len(self) -> usize

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

Returns the value associated with the given key.

fn list(self) -> Vec<(&'a str, Self::JsonRef)>

Returns all entries in the object.

fn list_value(self) -> Vec<Self::JsonRef>

Returns all values in the object.

Provided Methods

fn is_empty(self) -> bool

Returns true if the array is empty.

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<'a> ObjectRef<'a> for &'a Map<String, Value>

type JsonRef = &'a Value

fn len(self) -> usize

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

fn list(self) -> Vec<(&'a str, Self::JsonRef)>

fn list_value(self) -> Vec<Self::JsonRef>

Implementors