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error: `~const` can only be applied to `#[const_trait]` traits
--> $DIR/unstable-const-fn-in-libcore.rs:19:32
|
LL | const fn unwrap_or_else<F: ~const FnOnce() -> T>(self, f: F) -> T {
| ^^^^^^ can't be applied to `FnOnce`
|
note: `FnOnce` can't be used with `~const` because it isn't annotated with `#[const_trait]`
--> $SRC_DIR/core/src/ops/function.rs:LL:COL
error: `~const` can only be applied to `#[const_trait]` traits
--> $DIR/unstable-const-fn-in-libcore.rs:19:32
|
LL | const fn unwrap_or_else<F: ~const FnOnce() -> T>(self, f: F) -> T {
| ^^^^^^ can't be applied to `FnOnce`
|
note: `FnOnce` can't be used with `~const` because it isn't annotated with `#[const_trait]`
--> $SRC_DIR/core/src/ops/function.rs:LL:COL
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0015]: cannot call non-const closure in constant functions
--> $DIR/unstable-const-fn-in-libcore.rs:24:26
|
LL | Opt::None => f(),
| ^^^
|
= note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
error[E0493]: destructor of `F` cannot be evaluated at compile-time
--> $DIR/unstable-const-fn-in-libcore.rs:19:60
|
LL | const fn unwrap_or_else<F: ~const FnOnce() -> T>(self, f: F) -> T {
| ^ the destructor for this type cannot be evaluated in constant functions
...
LL | }
| - value is dropped here
error[E0493]: destructor of `Opt<T>` cannot be evaluated at compile-time
--> $DIR/unstable-const-fn-in-libcore.rs:19:54
|
LL | const fn unwrap_or_else<F: ~const FnOnce() -> T>(self, f: F) -> T {
| ^^^^ the destructor for this type cannot be evaluated in constant functions
...
LL | }
| - value is dropped here
error: aborting due to 5 previous errors
Some errors have detailed explanations: E0015, E0493.
For more information about an error, try `rustc --explain E0015`.
|
