ref_wrapper

Wrapper of dynamically borrowed data.

The author of this crate is not good at English.
Forgive me if the document is hard to read.

What is this?

This crate provide wrappers for value generated from dynamic borrowing types.

Examples

Normal use case.

let src = RefCell::new(vec![1, 2, 3]);
let target = RefWrap::new(src.borrow(), |x| VecStat(x));
assert_eq!(target.summary(), 6);

pub struct VecStat<'a>(&'a Vec<i32>);
impl<'a> VecStat<'a> {
    pub fn summary(&self) -> i32 {
        self.0.iter().sum::<i32>()
    }
}

Iterator use case.

let src = RefCell::new(vec![1, 2, 3]);
let iter = RefWrap::new(src.borrow(), |x| x.iter());
assert_eq!(iter.sum::<i32>(), 6);

What's new.

v0.2.2

• Remove unused lifetime constraint of RefIter::new and RefIterMut::new.
• Minor refactoring.

v0.2.1

• Minor refactoring.

v0.2.0

• Crate is now no_std.
• new method callback argument returns no longer need to wrapped in Box.
• RefWrap and RefWrapMut implement Iterator in certain cases.
• Instead of the above, RefIter and RefIterMut have been removed.

v0.1.3-0.1.5

• Minor refactoring.

v0.1.2

• Some internal function is inlined.