Function from_const_value 

pub fn from_const_value<T>(
    value: impl AsRef<ConstValue>,
) -> Result<T, RuntimeError>
where
    T: FromConstValue,

Convert something into a ConstValueBuf.

Examples

let value = rune::to_const_value((i32::MIN, u64::MAX))?;
let (a, b) = rune::from_const_value::<(i32, u64)>(&value)?;

assert_eq!(a, i32::MIN);
assert_eq!(b, u64::MAX);