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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:50 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:50 +0000 |
commit | 2e00214b3efbdfeefaa0fe9e8b8fd519de7adc35 (patch) | |
tree | d325add32978dbdc1db975a438b3a77d571b1ab8 /tests/ui/mir/issue-109743.rs | |
parent | Releasing progress-linux version 1.68.2+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-2e00214b3efbdfeefaa0fe9e8b8fd519de7adc35.tar.xz rustc-2e00214b3efbdfeefaa0fe9e8b8fd519de7adc35.zip |
Merging upstream version 1.69.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/mir/issue-109743.rs')
-rw-r--r-- | tests/ui/mir/issue-109743.rs | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/tests/ui/mir/issue-109743.rs b/tests/ui/mir/issue-109743.rs new file mode 100644 index 000000000..73f3405e3 --- /dev/null +++ b/tests/ui/mir/issue-109743.rs @@ -0,0 +1,51 @@ +// build-pass +// compile-flags: --crate-type=lib + +use std::marker::PhantomData; + +pub trait StreamOnce { + type Token; +} + +impl StreamOnce for &str { + type Token = (); +} + +pub trait Parser<Input: StreamOnce> { + type PartialState: Default; + fn parse_mode(&self, _state: &Self::PartialState) {} + fn parse_mode_impl() {} +} + +pub fn parse_bool<'a>() -> impl Parser<&'a str> { + pub struct TokensCmp<C, Input> + where + Input: StreamOnce, + { + _cmp: C, + _marker: PhantomData<Input>, + } + + impl<Input, C> Parser<Input> for TokensCmp<C, Input> + where + C: FnMut(Input::Token), + Input: StreamOnce, + { + type PartialState = (); + } + + TokensCmp { _cmp: |_| (), _marker: PhantomData } +} + +pub struct ParseBool; + +impl<'a> Parser<&'a str> for ParseBool +where + &'a str: StreamOnce, +{ + type PartialState = (); + + fn parse_mode_impl() { + parse_bool().parse_mode(&Default::default()) + } +} |