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authorbors[bot] <26634292+bors[bot]@users.noreply.github.com>2020-06-05 16:46:28 +0100
committerGitHub <[email protected]>2020-06-05 16:46:28 +0100
commit2a3ab7f3b4b6f1917a55025d54ac39b0a0642b6e (patch)
treec8aa32697a5c7910f8ebbcacf6e06d088bfca833 /crates/ra_toolchain
parentf133159ec0b5037b58a26f52f8b37c545872dc7d (diff)
parent0d2328f3eaf69c6a50fe6c1e946257bd3503d751 (diff)
Merge #4689
4689: Implement return position impl trait / opaque type support r=matklad a=flodiebold This is working, but I'm not that happy with how the lowering works. We might need an additional representation between `TypeRef` and `Ty` where names are resolved and `impl Trait` bounds are separated out, but things like inference variables don't exist and `impl Trait` is always represented the same way. Also note that this doesn't implement correct handling of RPIT *inside* the function (which involves turning the `impl Trait`s into variables and creating obligations for them). That intermediate representation might help there as well. Co-authored-by: Florian Diebold <[email protected]> Co-authored-by: Florian Diebold <[email protected]>
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