cel 0.14.0

A parser and interpreter for the Common Expression Language (CEL)
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

use crate::common::traits::Zeroer;
use crate::common::types::Type;
use crate::common::value::Val;

#[derive(Clone, Debug, Default)]
pub struct Null;

impl Val for Null {
    fn get_type(&self) -> &Type {
        &super::NULL_TYPE
    }

    fn equals(&self, other: &dyn Val) -> bool {
        other.downcast_ref::<Null>().is_some()
    }

    fn as_zeroer(&self) -> Option<&dyn Zeroer> {
        Some(self)
    }

    fn clone_as_boxed(&self) -> Box<dyn Val> {
        Box::new(Null)
    }
}

impl Zeroer for Null {
    fn is_zero_value(&self) -> bool {
        true
    }
}