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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /src/test/ui/never_type/fallback-closure-ret.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/never_type/fallback-closure-ret.rs')
-rw-r--r-- | src/test/ui/never_type/fallback-closure-ret.rs | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/src/test/ui/never_type/fallback-closure-ret.rs b/src/test/ui/never_type/fallback-closure-ret.rs deleted file mode 100644 index 5c8ce48cb..000000000 --- a/src/test/ui/never_type/fallback-closure-ret.rs +++ /dev/null @@ -1,23 +0,0 @@ -// This test verifies that never type fallback preserves the following code in a -// compiling state. This pattern is fairly common in the wild, notably seen in -// wasmtime v0.16. Typically this is some closure wrapper that expects a -// collection of 'known' signatures, and -> ! is not included in that set. -// -// This test is specifically targeted by the unit type fallback when -// encountering a set of obligations like `?T: Foo` and `Trait::Projection = -// ?T`. In the code below, these are `R: Bar` and `Fn::Output = R`. -// -// revisions: nofallback fallback -// check-pass - -#![cfg_attr(fallback, feature(never_type_fallback))] - -trait Bar { } -impl Bar for () { } -impl Bar for u32 { } - -fn foo<R: Bar>(_: impl Fn() -> R) {} - -fn main() { - foo(|| panic!()); -} |