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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/imports/extern-crate-used.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/imports/extern-crate-used.rs')
-rw-r--r-- | src/test/ui/imports/extern-crate-used.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/imports/extern-crate-used.rs b/src/test/ui/imports/extern-crate-used.rs new file mode 100644 index 000000000..8198c1816 --- /dev/null +++ b/src/test/ui/imports/extern-crate-used.rs @@ -0,0 +1,32 @@ +// Extern crate items are marked as used if they are used +// through extern prelude entries introduced by them. + +// edition:2018 + +#![deny(unused_extern_crates)] + +// Shouldn't suggest changing to `use`, as new name +// would no longer be added to the prelude which could cause +// compilation errors for imports that use the new name in +// other modules. See #57672. +extern crate core as iso1; +extern crate core as iso2; +extern crate core as iso3; +extern crate core as iso4; + +// Doesn't introduce its extern prelude entry, so it's still considered unused. +extern crate core; //~ ERROR unused extern crate + +mod m { + use iso1::any as are_you_okay1; + use ::iso2::any as are_you_okay2; + type AreYouOkay1 = dyn iso3::any::Any; + type AreYouOkay2 = dyn (::iso4::any::Any); + + use core::any as are_you_okay3; + use ::core::any as are_you_okay4; + type AreYouOkay3 = dyn core::any::Any; + type AreYouOkay4 = dyn (::core::any::Any); +} + +fn main() {} |