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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
commit | 64d98f8ee037282c35007b64c2649055c56af1db (patch) | |
tree | 5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/ui/borrowck/issue-83309-ice-immut-in-for-loop.rs | |
parent | Adding debian version 1.67.1+dfsg1-1. (diff) | |
download | rustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/borrowck/issue-83309-ice-immut-in-for-loop.rs')
-rw-r--r-- | tests/ui/borrowck/issue-83309-ice-immut-in-for-loop.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/ui/borrowck/issue-83309-ice-immut-in-for-loop.rs b/tests/ui/borrowck/issue-83309-ice-immut-in-for-loop.rs new file mode 100644 index 000000000..d301e7b35 --- /dev/null +++ b/tests/ui/borrowck/issue-83309-ice-immut-in-for-loop.rs @@ -0,0 +1,32 @@ +// rust-lang/rust#83309: The compiler tries to suggest potential +// methods that return `&mut` items. However, when it doesn't +// find such methods, it still tries to add suggestions +// which then fails an assertion later because there was +// no suggestions to make. + + +fn main() { + for v in Query.iter_mut() { + //~^ NOTE this iterator yields `&` references + *v -= 1; + //~^ ERROR cannot assign to `*v`, which is behind a `&` reference + //~| NOTE `v` is a `&` reference, so the data it refers to cannot be written + } +} + +pub struct Query; +pub struct QueryIter<'a>(&'a i32); + +impl Query { + pub fn iter_mut<'a>(&'a mut self) -> QueryIter<'a> { + todo!(); + } +} + +impl<'a> Iterator for QueryIter<'a> { + type Item = &'a i32; + + fn next(&mut self) -> Option<Self::Item> { + todo!(); + } +} |