rust/tests/ui/const-generics/generic_const_exprs/dont-eagerly-error-in-is-const-evaluatable.rs

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2021-03-02 09:47:06 -06:00
// run-pass
#![feature(generic_const_exprs)]
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#![allow(incomplete_features)]
// This test is a repro for #82279. It checks that we don't error
// when calling is_const_evaluatable on `std::mem::size_of::<T>()`
// when looking for candidates that may prove `T: Foo` in `foo`
trait Foo {}
#[allow(dead_code)]
fn foo<T: Foo>() {}
impl<T> Foo for T where [(); std::mem::size_of::<T>()]: {}
fn main() {}