Hides default fns inside Fuse impl to avoid exposing it to any crate#70910

Merged

bors merged 3 commits intorust-lang:masterfrom

rakshith-ravi:master

Apr 17, 2020

Commits on Apr 8, 2020

Added FuseIteratorImpl, FustDoubleEndedIteratorImpl and FuseExactSizeIteratorImpl to avoid exposing default functions outside of the current crate.
rakshith-ravi
committed

Commits on Apr 10, 2020

Added comments.
rakshith-ravi
committed

Commits on Apr 15, 2020

Inlined everything into a single trait and trait impl
rakshith-ravi
committed