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/dep-graph/dep-graph-variance-alias.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/dep-graph/dep-graph-variance-alias.rs')
-rw-r--r-- | src/test/ui/dep-graph/dep-graph-variance-alias.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/dep-graph/dep-graph-variance-alias.rs b/src/test/ui/dep-graph/dep-graph-variance-alias.rs new file mode 100644 index 000000000..008434696 --- /dev/null +++ b/src/test/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>, +} |