Lending iterator trait and declarative macro for iteration

code review
1

Since I found myself in the need to have lending iterators, which are exclusively used in for-loops like iteration, i.e. while let Some(…) = iter.next() { … } I whipped up a generic lending iterator trait and a declarative macro to facilitate iteration over iterator expressions.

The purpose of the macro is to improve ergonomics to not need to instantiate the iterator in a mutable variable manually each time and then call next() on it (and not accidentally re-instantiate the iterator on each iteration causing an infinite looping over the first item).

What are your thoughts on this?

2

This topic was automatically closed 90 days after the last reply. We invite you to open a new topic if you have further questions or comments.