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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/ui/coercion/retslot-cast.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/coercion/retslot-cast.rs')
-rw-r--r-- | tests/ui/coercion/retslot-cast.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/ui/coercion/retslot-cast.rs b/tests/ui/coercion/retslot-cast.rs new file mode 100644 index 000000000..ae500cb15 --- /dev/null +++ b/tests/ui/coercion/retslot-cast.rs @@ -0,0 +1,22 @@ +#![allow(warnings)] + +pub fn fail(x: Option<&(Iterator<Item=()>+Send)>) + -> Option<&Iterator<Item=()>> { + // This call used to trigger an LLVM assertion because the return + // slot had type "Option<&Iterator>"* instead of + // "Option<&(Iterator+Send)>"* -- but this now yields a + // compilation error and I'm not sure how to create a comparable + // test. To ensure that this PARTICULAR failure doesn't occur + // again, though, I've left this test here, so if this ever starts + // to compile again, we can adjust the test appropriately (clearly + // it should never ICE...). -nmatsakis + inner(x) //~ ERROR mismatched types +} + +pub fn inner(x: Option<&(Iterator<Item=()>+Send)>) + -> Option<&(Iterator<Item=()>+Send)> { + x +} + + +fn main() {} |