ai-agent 0.13.4

Idiomatic agent sdk inspired by the claude code source leak
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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59

use std::cell::RefCell;
use std::rc::Rc;

pub struct Lazy<T: Clone> {
    factory: Rc<dyn Fn() -> T>,
    cached: RefCell<Option<T>>,
}

impl<T: Clone> Lazy<T> {
    pub fn new(factory: impl Fn() -> T + 'static) -> Self {
        Lazy {
            factory: Rc::new(factory),
            cached: RefCell::new(None),
        }
    }

    pub fn get(&self) -> T {
        if self.cached.borrow().is_none() {
            let value = (self.factory)();
            *self.cached.borrow_mut() = Some(value);
        }
        self.cached.borrow().as_ref().unwrap().clone()
    }
}

pub fn lazy_schema<T, F>(factory: F) -> impl Fn() -> T + 'static
where
    T: Clone + 'static,
    F: Fn() -> T + 'static,
{
    let lazy = Rc::new(RefCell::new(None));
    let factory = Rc::new(factory);

    move || {
        if lazy.borrow().is_none() {
            let value = factory();
            *lazy.borrow_mut() = Some(value);
        }
        lazy.borrow().as_ref().unwrap().clone()
    }
}

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

    #[test]
    fn test_lazy_schema() {
        let mut call_count = 0;
        let factory = lazy_schema(|| {
            call_count += 1;
            "computed"
        });

        assert_eq!(factory(), "computed");
        assert_eq!(factory(), "computed");
        assert_eq!(call_count, 1);
    }
}