mirror of https://github.com/rust-lang/rust
72 lines
1.5 KiB
Rust
72 lines
1.5 KiB
Rust
//@ build-pass
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//@ revisions: no-opt inline
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//@ [inline]compile-flags: -Zmir-opt-level=3 --emit=mir
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#![feature(trivial_bounds)]
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#![allow(unused)]
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trait Foo {
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fn test(&self);
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}
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fn foo<'a>(s: &'a mut ())
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where
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&'a mut (): Foo,
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{
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s.test();
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}
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fn clone(it: &mut ()) -> &mut ()
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where
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for<'any> &'any mut (): Clone,
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//~^ WARN trait bound for<'any> &'any mut (): Clone does not depend on any type or lifetime parameters
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{
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it.clone()
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}
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fn generic_function<X: Foo>(x: X) {}
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struct S where i32: Foo;
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//~^ WARN trait bound i32: Foo does not depend on any type or lifetime parameters
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impl Foo for () where i32: Foo {
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//~^ WARN trait bound i32: Foo does not depend on any type or lifetime parameters
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fn test(&self) {
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3i32.test();
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Foo::test(&4i32);
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generic_function(5i32);
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}
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}
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fn f() where i32: Foo {
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//~^ WARN trait bound i32: Foo does not depend on any type or lifetime parameters
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let s = S;
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3i32.test();
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Foo::test(&4i32);
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generic_function(5i32);
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}
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fn g() where &'static str: Foo {
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//~^ WARN trait bound &'static str: Foo does not depend on any type or lifetime parameters
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"Foo".test();
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Foo::test(&"Foo");
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generic_function("Foo");
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}
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fn use_op(s: String) -> String
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where
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String: ::std::ops::Neg<Output = String>,
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//~^ WARN trait bound String: Neg does not depend on any type or lifetime parameters
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{
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-s
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}
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fn use_for()
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where
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i32: Iterator,
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//~^ WARN trait bound i32: Iterator does not depend on any type or lifetime parameters
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{
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for _ in 2i32 {}
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}
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fn main() {}
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