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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/hygiene/traits-in-scope.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/hygiene/traits-in-scope.rs')
-rw-r--r-- | src/test/ui/hygiene/traits-in-scope.rs | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/test/ui/hygiene/traits-in-scope.rs b/src/test/ui/hygiene/traits-in-scope.rs new file mode 100644 index 000000000..548bb226b --- /dev/null +++ b/src/test/ui/hygiene/traits-in-scope.rs @@ -0,0 +1,53 @@ +// Macros with def-site hygiene still bring traits into scope. +// It is not clear whether this is desirable behavior or not. +// It is also not clear how to prevent it if it is not desirable. + +// check-pass + +#![feature(decl_macro)] +#![feature(trait_alias)] + +mod traits { + pub trait Trait1 { + fn simple_import(&self) {} + } + pub trait Trait2 { + fn renamed_import(&self) {} + } + pub trait Trait3 { + fn underscore_import(&self) {} + } + pub trait Trait4 { + fn trait_alias(&self) {} + } + + impl Trait1 for () {} + impl Trait2 for () {} + impl Trait3 for () {} + impl Trait4 for () {} +} + +macro m1() { + use traits::Trait1; +} +macro m2() { + use traits::Trait2 as Alias; +} +macro m3() { + use traits::Trait3 as _; +} +macro m4() { + trait Alias = traits::Trait4; +} + +fn main() { + m1!(); + m2!(); + m3!(); + m4!(); + + ().simple_import(); + ().renamed_import(); + ().underscore_import(); + ().trait_alias(); +} |