Derive Macro trait_based_collection_macros::IntoIterator

#[derive(IntoIterator)]

This macro is used to derive the IntoIterator a standard implementation for all the data structures that implement the Collection trait. This macro will create a generic wrapper around the data structure and then use some of the Collection methods to iterate over the elements of the data structure.

The wrapper will implement the Iterator and ExactSizeIterator traits and will be returned by the into_iter method of the data structure.

So by implementing this macro, the user can ensure that one of the methods of Iterators is implemented for the data structure.

Panics

This macro will panic if the input could not be properly parsed using the syn crate.