diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/dst/dst-index.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/dst/dst-index.rs')
-rw-r--r-- | src/test/ui/dst/dst-index.rs | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/test/ui/dst/dst-index.rs b/src/test/ui/dst/dst-index.rs new file mode 100644 index 000000000..2f2c5df46 --- /dev/null +++ b/src/test/ui/dst/dst-index.rs @@ -0,0 +1,37 @@ +// Test that overloaded index expressions with DST result types +// can't be used as rvalues + +use std::ops::Index; +use std::fmt::Debug; + +#[derive(Copy, Clone)] +struct S; + +impl Index<usize> for S { + type Output = str; + + fn index(&self, _: usize) -> &str { + "hello" + } +} + +#[derive(Copy, Clone)] +struct T; + +impl Index<usize> for T { + type Output = dyn Debug + 'static; + + fn index<'a>(&'a self, idx: usize) -> &'a (dyn Debug + 'static) { + static x: usize = 42; + &x + } +} + +fn main() { + S[0]; + //~^ ERROR cannot move out of index of `S` + //~^^ ERROR E0161 + T[0]; + //~^ ERROR cannot move out of index of `T` + //~^^ ERROR E0161 +} |