#[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.
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.
🔬 This is a nightly-only experimental API. (
proc_macro_diagnostic #54140)
 🔬 This is a nightly-only experimental API. (
proc_macro_diagnostic #54140)
 🔬 This is a nightly-only experimental API. (
proc_macro_diagnostic #54140)
 🔬 This is a nightly-only experimental API. (
proc_macro_diagnostic #54140)
 
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
impl<T> Any for T where
    T: 'static + ?Sized, 
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
impl<T, U> Into<U> for T where
    U: From<T>, 
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (toowned_clone_into #41263)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
The type returned in the event of a conversion error.