rust/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122199.stderr

error[E0403]: the name `N` is already used for a generic parameter in this item's generic parameters
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:18
   |
LL | trait Trait<const N: Trait = bar> {
   |                   - first use of `N`
...
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |                  ^ already used

error[E0425]: cannot find value `bar` in this scope
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:30
   |
LL | trait Trait<const N: Trait = bar> {
   |                              ^^^ not found in this scope

error[E0423]: expected value, found builtin type `u32`
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:29
   |
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |                             ^^^ not a value

error[E0425]: cannot find value `bar` in this scope
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:26:9
   |
LL |         bar
   |         ^^^ not found in this scope

warning: trait objects without an explicit `dyn` are deprecated
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:22
   |
LL | trait Trait<const N: Trait = bar> {
   |                      ^^^^^
   |
   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
   = note: `#[warn(bare_trait_objects)]` on by default
help: if this is an object-safe trait, use `dyn`
   |
LL | trait Trait<const N: dyn Trait = bar> {
   |                      +++

error[E0391]: cycle detected when computing type of `Trait::N`
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:22
   |
LL | trait Trait<const N: Trait = bar> {
   |                      ^^^^^
   |
   = note: ...which immediately requires computing type of `Trait::N` again
note: cycle used when computing explicit predicates of trait `Trait`
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:1
   |
LL | trait Trait<const N: Trait = bar> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = 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

error[E0391]: cycle detected when computing type of `Trait::N`
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:13
   |
LL | trait Trait<const N: Trait = bar> {
   |             ^^^^^^^^^^^^^^^^^^^^
   |
   = note: ...which immediately requires computing type of `Trait::N` again
note: cycle used when computing explicit predicates of trait `Trait`
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:1
   |
LL | trait Trait<const N: Trait = bar> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = 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

error: defaults for const parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:12
   |
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |            ^^^^^^^^^^^^^^^^^^^^

warning: trait objects without an explicit `dyn` are deprecated
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:21
   |
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |                     ^^^^^
   |
   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
help: if this is an object-safe trait, use `dyn`
   |
LL |     fn fnc<const N: dyn Trait = u32>(&self) -> Trait {
   |                     +++

warning: trait objects without an explicit `dyn` are deprecated
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:44
   |
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |                                            ^^^^^
   |
   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
help: if this is an object-safe trait, use `dyn`
   |
LL |     fn fnc<const N: Trait = u32>(&self) -> dyn Trait {
   |                                            +++

warning: trait objects without an explicit `dyn` are deprecated
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:22
   |
LL | trait Trait<const N: Trait = bar> {
   |                      ^^^^^
   |
   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
help: if this is an object-safe trait, use `dyn`
   |
LL | trait Trait<const N: dyn Trait = bar> {
   |                      +++

error[E0038]: the trait `Trait` cannot be made into an object
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:22
   |
LL | trait Trait<const N: Trait = bar> {
   |                      ^^^^^ `Trait` cannot be made into an object
   |
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:8
   |
LL | trait Trait<const N: Trait = bar> {
   |       ----- this trait cannot be made into an object...
...
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |        ^^^ ...because method `fnc` has generic type parameters
   = help: consider moving `fnc` to another trait

error[E0038]: the trait `Trait` cannot be made into an object
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:13
   |
LL | trait Trait<const N: Trait = bar> {
   |             ^^^^^^^^^^^^^^^^^^^^ `Trait` cannot be made into an object
   |
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:8
   |
LL | trait Trait<const N: Trait = bar> {
   |       ----- this trait cannot be made into an object...
...
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |        ^^^ ...because method `fnc` has generic type parameters
   = help: consider moving `fnc` to another trait

error: `(dyn Trait<{const error}> + 'static)` is forbidden as the type of a const generic parameter
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:22
   |
LL | trait Trait<const N: Trait = bar> {
   |                      ^^^^^
   |
   = note: the only supported types are integers, `bool` and `char`

error: associated item referring to unboxed trait object for its own trait
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:44
   |
LL | trait Trait<const N: Trait = bar> {
   |       ----- in this trait
...
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |                                            ^^^^^
   |
help: you might have meant to use `Self` to refer to the implementing type
   |
LL |     fn fnc<const N: Trait = u32>(&self) -> Self {
   |                                            ~~~~

warning: trait objects without an explicit `dyn` are deprecated
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:21
   |
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |                     ^^^^^
   |
   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
help: if this is an object-safe trait, use `dyn`
   |
LL |     fn fnc<const N: dyn Trait = u32>(&self) -> Trait {
   |                     +++

error[E0038]: the trait `Trait` cannot be made into an object
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:21
   |
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |                     ^^^^^ `Trait` cannot be made into an object
   |
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:8
   |
LL | trait Trait<const N: Trait = bar> {
   |       ----- this trait cannot be made into an object...
...
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |        ^^^ ...because method `fnc` has generic type parameters
   = help: consider moving `fnc` to another trait

error[E0038]: the trait `Trait` cannot be made into an object
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:13
   |
LL | trait Trait<const N: Trait = bar> {
   |             ^^^^^^^^^^^^^^^^^^^^ `Trait` cannot be made into an object
   |
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:8
   |
LL | trait Trait<const N: Trait = bar> {
   |       ----- this trait cannot be made into an object...
...
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |        ^^^ ...because method `fnc` has generic type parameters
   = help: consider moving `fnc` to another trait
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`

error: `(dyn Trait<{const error}> + 'static)` is forbidden as the type of a const generic parameter
  --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:21
   |
LL |     fn fnc<const N: Trait = u32>(&self) -> Trait {
   |                     ^^^^^
   |
   = note: the only supported types are integers, `bool` and `char`

error: aborting due to 14 previous errors; 5 warnings emitted

Some errors have detailed explanations: E0038, E0391, E0403, E0423, E0425.
For more information about an error, try `rustc --explain E0038`.