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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/lint/unused/lint-unused-extern-crate.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/lint/unused/lint-unused-extern-crate.rs')
-rw-r--r-- | src/test/ui/lint/unused/lint-unused-extern-crate.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/ui/lint/unused/lint-unused-extern-crate.rs b/src/test/ui/lint/unused/lint-unused-extern-crate.rs new file mode 100644 index 000000000..d5e4da526 --- /dev/null +++ b/src/test/ui/lint/unused/lint-unused-extern-crate.rs @@ -0,0 +1,35 @@ +// aux-build:lint_unused_extern_crate.rs +// aux-build:lint_unused_extern_crate2.rs +// aux-build:lint_unused_extern_crate3.rs +// aux-build:lint_unused_extern_crate4.rs +// aux-build:lint_unused_extern_crate5.rs + +#![deny(unused_extern_crates)] +#![allow(unused_variables)] +#![allow(deprecated)] + +extern crate lint_unused_extern_crate5; //~ ERROR: unused extern crate + +pub extern crate lint_unused_extern_crate4; // no error, it is re-exported + +extern crate lint_unused_extern_crate3; // no error, it is used + +extern crate lint_unused_extern_crate2; // no error, the use marks it as used + // even if imported objects aren't used + +extern crate lint_unused_extern_crate as other; // no error, the use * marks it as used + +#[allow(unused_imports)] +use lint_unused_extern_crate2::foo as bar; + +use other::*; + +mod foo { + // Test that this is unused even though an earlier `extern crate` is used. + extern crate lint_unused_extern_crate2; //~ ERROR unused extern crate +} + +fn main() { + lint_unused_extern_crate3::foo(); + let y = foo(); +} |