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error[E0277]: the trait bound `[closure@$DIR/issue-56164.rs:1:19: 1:21]: Fn<()>` is not satisfied
--> $DIR/issue-56164.rs:1:18
|
LL | const fn foo() { (||{})() }
| ^^^^^^^^ expected an `Fn<()>` closure, found `[closure@$DIR/issue-56164.rs:1:19: 1:21]`
|
= help: the trait `~const Fn<()>` is not implemented for closure `[closure@$DIR/issue-56164.rs:1:19: 1:21]`
note: the trait `Fn<()>` is implemented for `[closure@$DIR/issue-56164.rs:1:19: 1:21]`, but that implementation is not `const`
--> $DIR/issue-56164.rs:1:18
|
LL | const fn foo() { (||{})() }
| ^^^^^^^^
= note: wrap the `[closure@$DIR/issue-56164.rs:1:19: 1:21]` in a closure with no arguments: `|| { /* code */ }`
error[E0015]: cannot call non-const closure in constant functions
--> $DIR/issue-56164.rs:1:18
|
LL | const fn foo() { (||{})() }
| ^^^^^^^^
|
= note: closures need an RFC before allowed to be called in constant functions
= note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
= help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
error: function pointer calls are not allowed in constant functions
--> $DIR/issue-56164.rs:6:5
|
LL | input()
| ^^^^^^^
note: erroneous constant used
--> $DIR/issue-56164.rs:1:18
|
LL | const fn foo() { (||{})() }
| ^^^^^^
note: erroneous constant used
--> $DIR/issue-56164.rs:1:18
|
LL | const fn foo() { (||{})() }
| ^^^^^^
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0015, E0277.
For more information about an error, try `rustc --explain E0015`.
|
