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