mirror of https://github.com/rust-lang/rust.git
50 lines
2.1 KiB
Plaintext
50 lines
2.1 KiB
Plaintext
warning: trait objects without an explicit `dyn` are deprecated
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--> $DIR/ice-hir-wf-check-anon-const-issue-122989.rs:2:20
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LL | trait Foo<const N: Bar<2>> {
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| ^^^^^^
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= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
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= note: `#[warn(bare_trait_objects)]` on by default
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help: if this is a dyn-compatible trait, use `dyn`
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LL | trait Foo<const N: dyn Bar<2>> {
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| +++
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warning: trait objects without an explicit `dyn` are deprecated
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--> $DIR/ice-hir-wf-check-anon-const-issue-122989.rs:9:20
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LL | trait Bar<const M: Foo<2>> {}
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| ^^^^^^
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= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
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help: if this is a dyn-compatible trait, use `dyn`
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LL | trait Bar<const M: dyn Foo<2>> {}
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| +++
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error[E0391]: cycle detected when computing type of `Foo::N`
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--> $DIR/ice-hir-wf-check-anon-const-issue-122989.rs:2:11
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LL | trait Foo<const N: Bar<2>> {
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| ^^^^^^^^^^^^^^^
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note: ...which requires computing type of `Bar::M`...
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--> $DIR/ice-hir-wf-check-anon-const-issue-122989.rs:9:11
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LL | trait Bar<const M: Foo<2>> {}
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| ^^^^^^^^^^^^^^^
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= note: ...which again requires computing type of `Foo::N`, completing the cycle
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note: cycle used when computing explicit predicates of trait `Foo`
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--> $DIR/ice-hir-wf-check-anon-const-issue-122989.rs:2:1
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LL | trait Foo<const N: Bar<2>> {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
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error: aborting due to 1 previous error; 2 warnings emitted
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For more information about this error, try `rustc --explain E0391`.
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