Struct VacantEntry

pub struct VacantEntry<'a> { /* private fields */ }

A view into a vacant entry in a Object.

Implementations

impl<'a> VacantEntry<'a>

pub fn insert<T: Into<Value>>(self, val: T) -> &'a mut Value

Insert a value into the vacant entry and return a mutable reference to it.

Examples

use sonic_rs::{json, object, value::object::Entry};

let mut obj = object! {};

if let Entry::Vacant(entry) = obj.entry(&"hello") {
    assert_eq!(entry.insert(1), &1);
}

if let Entry::Vacant(entry) = obj.entry(&"world") {
    assert_eq!(entry.insert(json!("woo").clone()), "woo");
}

assert_eq!(obj.get(&"hello").unwrap(), 1);
assert_eq!(obj.get(&"world").unwrap(), "woo");

pub fn key(&self) -> &str

Get the key of the vacant entry.