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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/issues/issue-83190.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/issues/issue-83190.rs | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-83190.rs b/src/test/ui/issues/issue-83190.rs new file mode 100644 index 000000000..da931c3ed --- /dev/null +++ b/src/test/ui/issues/issue-83190.rs @@ -0,0 +1,49 @@ +// check-pass + +// Regression test for issue #83190, triggering an ICE in borrowck. + +pub trait Any {} +impl<T> Any for T {} + +pub trait StreamOnce { + type Range; +} + +pub trait Parser<Input>: Sized { + type Output; + type PartialState; + fn map(self) -> Map<Self> { + todo!() + } +} + +pub struct Map<P>(P); +impl<I, P: Parser<I, Output = ()>> Parser<I> for Map<P> { + type Output = (); + type PartialState = P::PartialState; +} + +struct TakeWhile1<Input>(Input); +impl<I: StreamOnce> Parser<I> for TakeWhile1<I> { + type Output = I::Range; + type PartialState = (); +} +impl<I> TakeWhile1<I> { + fn new() -> Self { + todo!() + } +} + +impl<I, A: Parser<I>> Parser<I> for (A,) { + type Output = (); + type PartialState = Map<A::Output>; +} + +pub fn metric_stream_parser<'a, I>() -> impl Parser<I, Output = (), PartialState = impl Any + 'a> +where + I: StreamOnce<Range = &'a [()]>, +{ + (TakeWhile1::new(),).map() +} + +fn main() {} |