Function json_rules_engine::from_dynamic

pub fn from_dynamic<'de, T>(
    value: &'de Dynamic
) -> Result<T, Box<EvalAltResult, Global>> where
    T: Deserialize<'de>, 

Deserialize a Dynamic value into a Rust type that implements serde::Deserialize.

Example

use rhai::{Dynamic, Array, Map, INT};
use rhai::serde::from_dynamic;
use serde::Deserialize;

#[derive(Debug, Deserialize, PartialEq)]
struct Hello {
    a: INT,
    b: bool,
}

#[derive(Debug, Deserialize, PartialEq)]
struct Test {
    int: u32,
    seq: Vec<String>,
    obj: Hello,
}

let mut map = Map::new();
map.insert("int".into(), Dynamic::from(42_u32));

let mut map2 = Map::new();
map2.insert("a".into(), (123 as INT).into());
map2.insert("b".into(), true.into());

map.insert("obj".into(), map2.into());

let arr: Array = vec!["foo".into(), "bar".into(), "baz".into()];
map.insert("seq".into(), arr.into());

let value: Test = from_dynamic(&map.into())?;

let expected = Test {
    int: 42,
    seq: vec!["foo".into(), "bar".into(), "baz".into()],
    obj: Hello { a: 123, b: true },
};

assert_eq!(value, expected);