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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/function-pointer/issue-102289.rs | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/test/ui/function-pointer/issue-102289.rs b/src/test/ui/function-pointer/issue-102289.rs new file mode 100644 index 000000000..de394ca9a --- /dev/null +++ b/src/test/ui/function-pointer/issue-102289.rs @@ -0,0 +1,54 @@ +// check-pass + +pub(crate) trait Parser: Sized { + type Output; + fn parse(&mut self, _input: &str) -> Result<(), ()> { + loop {} + } + fn map<F, B>(self, _f: F) -> Map<Self, F> + where + F: FnMut(Self::Output) -> B, + { + todo!() + } +} + +pub(crate) struct Chainl1<P, Op>(P, Op); +impl<P, Op> Parser for Chainl1<P, Op> +where + P: Parser, + Op: Parser, + Op::Output: FnOnce(P::Output, P::Output) -> P::Output, +{ + type Output = P::Output; +} +pub(crate) fn chainl1<P, Op>(_parser: P, _op: Op) -> Chainl1<P, Op> +where + P: Parser, + Op: Parser, + Op::Output: FnOnce(P::Output, P::Output) -> P::Output, +{ + loop {} +} + +pub(crate) struct Map<P, F>(P, F); +impl<A, B, P, F> Parser for Map<P, F> +where + P: Parser<Output = A>, + F: FnMut(A) -> B, +{ + type Output = B; +} + +impl Parser for u32 { + type Output = (); +} + +pub fn chainl1_error_consume() { + fn first<T, U>(t: T, _: U) -> T { + t + } + let _ = chainl1(1, 1.map(|_| first)).parse(""); +} + +fn main() {} |