Enum proc_macro::Level
source · #[non_exhaustive]pub enum Level {
Error,
Warning,
Note,
Help,
}
🔬This is a nightly-only experimental API. (
proc_macro_diagnostic
#54140)Expand description
An enum representing a diagnostic level.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
Error
🔬This is a nightly-only experimental API. (
proc_macro_diagnostic
#54140)An error.
Warning
🔬This is a nightly-only experimental API. (
proc_macro_diagnostic
#54140)A warning.
Note
🔬This is a nightly-only experimental API. (
proc_macro_diagnostic
#54140)A note.
Help
🔬This is a nightly-only experimental API. (
proc_macro_diagnostic
#54140)A help message.
Trait Implementations§
Auto Trait Implementations§
impl RefUnwindSafe for Level
impl Send for Level
impl Sync for Level
impl Unpin for Level
impl UnwindSafe for Level
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more