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//@aux-build:proc_macro_derive.rs
#![allow(unused, clippy::duplicated_attributes)]
#![warn(clippy::useless_attribute)]
#![warn(unreachable_pub)]
#![feature(rustc_private)]
#[allow(dead_code)]
//~^ useless_attribute
#[cfg_attr(clippy, allow(dead_code))]
//~^ useless_attribute
#[rustfmt::skip]
#[allow(unused_imports)]
#[allow(unused_extern_crates)]
#[macro_use]
extern crate regex as regex_crate;
#[macro_use]
extern crate proc_macro_derive;
fn test_indented_attr() {
#[allow(clippy::almost_swapped)]
//~^ useless_attribute
use std::collections::HashSet;
let _ = HashSet::<u32>::default();
}
// don't lint on unused_import for `use` items
#[allow(unused_imports)]
use std::collections;
// don't lint on unused for `use` items
#[allow(unused)]
use std::option;
// don't lint on deprecated for `use` items
mod foo {
#[deprecated]
pub struct Bar;
}
#[allow(deprecated)]
pub use foo::Bar;
// This should not trigger the lint. There's lint level definitions inside the external derive
// that would trigger the useless_attribute lint.
#[derive(DeriveSomething)]
struct Baz;
// don't lint on unreachable_pub for `use` items
mod a {
mod b {
#[allow(dead_code)]
#[allow(unreachable_pub)]
pub struct C;
}
#[allow(unreachable_pub)]
pub use self::b::C;
}
// don't lint on clippy::wildcard_imports for `use` items
#[allow(clippy::wildcard_imports)]
pub use std::io::prelude::*;
// don't lint on clippy::enum_glob_use for `use` items
#[allow(clippy::enum_glob_use)]
pub use std::cmp::Ordering::*;
// don't lint on clippy::redundant_pub_crate
mod c {
#[allow(clippy::redundant_pub_crate)]
pub(crate) struct S;
}
// https://github.com/rust-lang/rust-clippy/issues/7511
pub mod split {
#[allow(clippy::module_name_repetitions)]
pub use regex::SplitN;
}
// https://github.com/rust-lang/rust-clippy/issues/8768
#[allow(clippy::single_component_path_imports)]
use regex;
mod module {
pub(crate) struct Struct;
}
#[rustfmt::skip]
#[allow(unused_import_braces)]
#[allow(unused_braces)]
use module::{Struct};
fn main() {
test_indented_attr();
}
// Regression test for https://github.com/rust-lang/rust-clippy/issues/4467
#[allow(dead_code)]
use std::collections as puppy_doggy;
// Regression test for https://github.com/rust-lang/rust-clippy/issues/11595
pub mod hidden_glob_reexports {
#![allow(unreachable_pub)]
mod my_prelude {
pub struct MyCoolTypeInternal;
pub use MyCoolTypeInternal as MyCoolType;
}
mod my_uncool_type {
pub(crate) struct MyUncoolType;
}
// This exports `MyCoolType`.
pub use my_prelude::*;
// This hides `my_prelude::MyCoolType`.
#[allow(hidden_glob_reexports)]
use my_uncool_type::MyUncoolType as MyCoolType;
}
// Regression test for https://github.com/rust-lang/rust-clippy/issues/10878
pub mod ambiguous_glob_exports {
#![allow(unreachable_pub)]
mod my_prelude {
pub struct MyType;
}
mod my_type {
pub struct MyType;
}
#[allow(ambiguous_glob_reexports)]
pub use my_prelude::*;
pub use my_type::*;
}
// Regression test for https://github.com/rust-lang/rust-clippy/issues/13764
pub mod unknown_namespace {
pub mod some_module {
pub struct SomeType;
}
#[allow(rustc::non_glob_import_of_type_ir_inherent)]
use some_module::SomeType;
}
// Regression test for https://github.com/rust-lang/rust-clippy/issues/15316
pub mod redundant_imports_issue {
macro_rules! empty {
() => {};
}
#[expect(redundant_imports)]
pub(crate) use empty;
empty!();
}
pub mod issue15636 {
pub mod f {
#[deprecated(since = "TBD")]
pub mod deprec {}
}
#[allow(deprecated_in_future)]
pub use f::deprec;
}
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