jsonlogic 0.5.1

A JsonLogic implementation in Rust
Documentation 
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use serde_json::{json, Value};

use super::{logic, Data, Expression};

/// Double negation, or "cast to a boolean". Takes a single argument.
pub fn compute(args: &[Expression], data: &Data) -> Value {
    let a = args
        .get(0)
        .map(|arg| arg.compute(data))
        .unwrap_or(json!(null));

    Value::Bool(logic::is_truthy(&a))
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::compute_const;

    #[test]
    fn test() {
        assert_eq!(compute_const!(), Value::Bool(false));
        assert_eq!(compute_const!(json!(null)), Value::Bool(false));
        assert_eq!(compute_const!(json!(false)), Value::Bool(false));
        assert_eq!(compute_const!(json!(true)), Value::Bool(true));
    }
}