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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 /tests/ui/dep-graph/dep-graph-variance-alias.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 'tests/ui/dep-graph/dep-graph-variance-alias.rs')
-rw-r--r-- | tests/ui/dep-graph/dep-graph-variance-alias.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/ui/dep-graph/dep-graph-variance-alias.rs b/tests/ui/dep-graph/dep-graph-variance-alias.rs new file mode 100644 index 000000000..008434696 --- /dev/null +++ b/tests/ui/dep-graph/dep-graph-variance-alias.rs @@ -0,0 +1,22 @@ +// Test that changing what a `type` points to does not go unnoticed +// by the variance analysis. + +// incremental +// compile-flags: -Z query-dep-graph + +#![feature(rustc_attrs)] +#![allow(dead_code)] +#![allow(unused_variables)] +fn main() {} + +#[rustc_if_this_changed] +struct Foo<T> { + f: T, +} + +type TypeAlias<T> = Foo<T>; + +#[rustc_then_this_would_need(variances_of)] //~ ERROR OK +struct Use<T> { + x: TypeAlias<T>, +} |