mirror of https://github.com/rust-lang/rust
41 lines
941 B
Rust
41 lines
941 B
Rust
#![feature(trivial_bounds)]
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#![allow(unused)]
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#![deny(trivial_bounds)]
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struct A where i32: Copy; //~ ERROR
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trait X<T: Copy> {}
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trait Y<T>: Copy {}
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trait Z {
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type S: Copy;
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}
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// Check only the bound the user writes trigger the lint
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fn trivial_elaboration<T>() where T: X<i32> + Z<S = i32>, i32: Y<T> {} // OK
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fn global_param() where i32: X<()> {} //~ ERROR
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// Should only error on the trait bound, not the implicit
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// projection bound <i32 as Z>::S == i32.
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fn global_projection() where i32: Z<S = i32> {} //~ ERROR
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impl A {
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fn new() -> A { A }
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}
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// Lifetime bounds should be linted as well
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fn global_lifetimes() where i32: 'static, &'static str: 'static {}
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//~^ ERROR
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//~| ERROR
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fn local_lifetimes<'a>() where i32: 'a, &'a str: 'a {} // OK
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fn global_outlives() where 'static: 'static {} //~ ERROR
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// Check that each bound is checked individually
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fn mixed_bounds<T: Copy>() where i32: X<T> + Copy {} //~ ERROR
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fn main() {}
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