Enum proc_macro::Level

#[non_exhaustive]
pub enum Level {
    Error,
    Warning,
    Note,
    Help,
}

🔬 This is a nightly-only experimental API. (proc_macro_diagnostic #38356)

An enum representing a diagnostic level.

Variants (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 #38356)

An error.

Warning

🔬 This is a nightly-only experimental API. (proc_macro_diagnostic #38356)

A warning.

Note

🔬 This is a nightly-only experimental API. (proc_macro_diagnostic #38356)

A note.

Help

🔬 This is a nightly-only experimental API. (proc_macro_diagnostic #38356)

A help message.

Trait Implementations

impl Copy for Level

impl Clone for Level

fn clone(&self) -> Level

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Level

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.