mirror of https://github.com/rust-lang/rust.git
20 lines
649 B
Rust
20 lines
649 B
Rust
#![feature(staged_api)]
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#![allow(internal_features)]
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#![stable(feature = "unit_test", since = "1.0.0")]
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#[unstable(feature = "step_trait", issue = "42168")]
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pub trait Unstable {}
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#[stable(feature = "unit_test", since = "1.0.0")]
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fn foo<T: Unstable>(_: T) {}
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#[stable(feature = "unit_test", since = "1.0.0")]
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pub fn bar<T>(t: T) { //~ HELP consider restricting type parameter `T` with unstable trait `Unstable`
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foo(t) //~ ERROR E0277
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}
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#[stable(feature = "unit_test", since = "1.0.0")]
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pub fn baz<T>(t: std::ops::Range<T>) { //~ HELP consider restricting type parameter `T` with unstable trait
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for _ in t {} //~ ERROR E0277
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}
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fn main() {}
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