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|
// check-pass
// compile-flags: --cfg something
#![deny(unused_mut)]
extern "C" {
fn ffi(
#[allow(unused_mut)] a: i32,
#[cfg(something)] b: i32,
#[cfg_attr(something, cfg(nothing))] c: i32,
#[forbid(unused_mut)] d: i32,
#[deny(unused_mut)] #[warn(unused_mut)] ...
);
}
type FnType = fn(
#[allow(unused_mut)] a: i32,
#[cfg(something)] b: i32,
#[cfg_attr(something, cfg(nothing))] c: i32,
#[forbid(unused_mut)] d: i32,
#[deny(unused_mut)] #[warn(unused_mut)] e: i32
);
pub fn foo(
#[allow(unused_mut)] a: i32,
#[cfg(something)] b: i32,
#[cfg_attr(something, cfg(nothing))] c: i32,
#[forbid(unused_mut)] d: i32,
#[deny(unused_mut)] #[warn(unused_mut)] _e: i32
) {}
// self
struct SelfStruct {}
impl SelfStruct {
fn foo(
#[allow(unused_mut)] self,
#[cfg(something)] a: i32,
#[cfg_attr(something, cfg(nothing))]
#[deny(unused_mut)] b: i32,
) {}
}
struct RefStruct {}
impl RefStruct {
fn foo(
#[allow(unused_mut)] &self,
#[cfg(something)] a: i32,
#[cfg_attr(something, cfg(nothing))]
#[deny(unused_mut)] b: i32,
) {}
}
trait RefTrait {
fn foo(
#[forbid(unused_mut)] &self,
#[warn(unused_mut)] a: i32
) {}
}
impl RefTrait for RefStruct {
fn foo(
#[forbid(unused_mut)] &self,
#[warn(unused_mut)] a: i32
) {}
}
// Box<Self>
struct BoxSelfStruct {}
impl BoxSelfStruct {
fn foo(
#[allow(unused_mut)] self: Box<Self>,
#[cfg(something)] a: i32,
#[cfg_attr(something, cfg(nothing))]
#[deny(unused_mut)] b: i32,
) {}
}
trait BoxSelfTrait {
fn foo(
#[forbid(unused_mut)] self: Box<Self>,
#[warn(unused_mut)] a: i32
) {}
}
impl BoxSelfTrait for BoxSelfStruct {
fn foo(
#[forbid(unused_mut)] self: Box<Self>,
#[warn(unused_mut)] a: i32
) {}
}
fn main() {
let _: unsafe extern "C" fn(_, _, _, ...) = ffi;
let _: fn(_, _, _, _) = foo;
let _: FnType = |_, _, _, _| {};
let c = |
#[allow(unused_mut)] a: u32,
#[cfg(something)] b: i32,
#[cfg_attr(something, cfg(nothing))]
#[deny(unused_mut)] c: i32,
| {};
let _ = c(1, 2);
}
|
