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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:29 +0000 |
commit | 631cd5845e8de329d0e227aaa707d7ea228b8f8f (patch) | |
tree | a1b87c8f8cad01cf18f7c5f57a08f102771ed303 /tests/ui/traits/new-solver/runaway-impl-candidate-selection.rs | |
parent | Adding debian version 1.69.0+dfsg1-1. (diff) | |
download | rustc-631cd5845e8de329d0e227aaa707d7ea228b8f8f.tar.xz rustc-631cd5845e8de329d0e227aaa707d7ea228b8f8f.zip |
Merging upstream version 1.70.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/traits/new-solver/runaway-impl-candidate-selection.rs')
-rw-r--r-- | tests/ui/traits/new-solver/runaway-impl-candidate-selection.rs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tests/ui/traits/new-solver/runaway-impl-candidate-selection.rs b/tests/ui/traits/new-solver/runaway-impl-candidate-selection.rs new file mode 100644 index 000000000..1dca86d36 --- /dev/null +++ b/tests/ui/traits/new-solver/runaway-impl-candidate-selection.rs @@ -0,0 +1,15 @@ +// compile-flags: -Ztrait-solver=next + +// In the new solver, we are trying to select `<?0 as Iterator>::Item: Debug`, +// which, naively can be unified with every impl of `Debug` if we're not careful. +// This test makes sure that we treat projections with inference var substs as +// placeholders during fast reject. + +fn iter<T: Iterator>() -> <T as Iterator>::Item { + todo!() +} + +fn main() { + println!("{:?}", iter::<_>()); + //~^ ERROR type annotations needed +} |