Enum proc_macro::Level

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

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

代表诊断级别的枚举。

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 #54140)

一个错误。

Warning

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

一个警告。

Note

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

一条消息。

Help

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

一条帮助消息。

Trait Implementations

impl Clone for Level

fn clone(&self) -> Level

返回值的副本。

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

从 source 执行复制分配。

impl Debug for Level

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

使用给定的格式化程序格式化该值。

impl Copy for Level