32 lines
753 B
Rust
32 lines
753 B
Rust
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// This is a regression test for issue #104400.
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// revisions: unconstrained constrained
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//[constrained] check-pass
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// Test that we can constrain generic const items that appear inside associated consts by
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// adding a (makeshift) "evaluatable"-bound to the item.
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#![feature(generic_const_items, generic_const_exprs)]
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#![allow(incomplete_features)]
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trait Trait {
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const LEN: usize;
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#[cfg(unconstrained)]
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const ARRAY: [i32; Self::LEN]; //[unconstrained]~ ERROR unconstrained generic constant
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#[cfg(constrained)]
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const ARRAY: [i32; Self::LEN]
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where
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[(); Self::LEN]:;
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}
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impl Trait for () {
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const LEN: usize = 2;
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const ARRAY: [i32; Self::LEN] = [360, 720];
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}
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fn main() {
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let [_, _] = <() as Trait>::ARRAY;
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}
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