rust/tests/ui/associated-consts/associated-const-array-len.rs

trait Foo {
    const ID: usize;
}

const X: [i32; <i32 as Foo>::ID] = [0, 1, 2];
//~^ ERROR the trait bound `i32: Foo` is not satisfied

fn main() {
    assert_eq!(1, X);
}
Support generic associated consts 2015-08-03 22:16:24 -04:00			`trait Foo {`
			`const ID: usize;`
Catch associated consts that depend on type parameters in type checking. Constants with values that depend on generic parameters or `Self` cause ICEs in `check_const`, and are not yet accepted via RFC, so we need to throw a proper error in these cases. 2015-05-04 01:39:10 -06:00			`}`

rustc_const_eval: always demand typeck_tables for evaluating constants. 2017-02-15 15:00:20 +02:00			`const X: [i32; <i32 as Foo>::ID] = [0, 1, 2];`
			//~^ ERROR the trait bound `i32: Foo` is not satisfied
Catch associated consts that depend on type parameters in type checking. Constants with values that depend on generic parameters or `Self` cause ICEs in `check_const`, and are not yet accepted via RFC, so we need to throw a proper error in these cases. 2015-05-04 01:39:10 -06:00
Support generic associated consts 2015-08-03 22:16:24 -04:00			`fn main() {`
			`assert_eq!(1, X);`
			`}`