Enum proc_macro::Level[−][src]

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

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

Expand description

代表诊断级别的枚举。

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)

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

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fn clone(&self) -> Level

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返回值的副本。 Read more

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

1.0.0 [src]

从 source 执行复制分配。 Read more

impl Debug for Level

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

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使用给定的格式化程序格式化该值。 Read more

impl Copy for Level

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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

impl<T> Any for T where
T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

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获取 self 的 TypeId。 Read more

impl<T> Borrow<T> for T where
T: ?Sized,

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pub fn borrow(&self) -> &T

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从拥有的值中一成不变地借用。 Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

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pub fn borrow_mut(&mut self) -> &mut T

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从拥有的值中借用。 Read more

impl<T> From<T> for T

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pub fn from(t: T) -> T

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执行转换。

impl<T, U> Into for T where
U: From<T>,

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pub fn into(self) -> U

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执行转换。

impl<T> ToOwned for T where
T: Clone,

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type Owned = T

获得所有权后的结果类型。

pub fn to_owned(&self) -> T

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通常通过克隆从借用数据中创建拥有的数据。 Read more

pub fn clone_into(&self, target: &mut T)

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🔬 This is a nightly-only experimental API. (toowned_clone_into #41263)

recently added

使用借来的数据来替换拥有的数据，通常是通过克隆。 Read more

impl<T, U> TryFrom for T where
U: Into<T>,

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type Error = Infallible

发生转换错误时返回的类型。

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

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执行转换。

impl<T, U> TryInto for T where
U: TryFrom<T>,

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type Error = >::Error

发生转换错误时返回的类型。

pub fn try_into(self) -> Result<U, >::Error>

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执行转换。

Enum proc_macro::Level[−][src]

Variants (Non-exhaustive)

Trait Implementations

impl Clone for Level

fn clone(&self) -> Level

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

impl Debug for Level

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

impl Copy for Level

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

impl<T> Any for T where
T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

pub fn into(self) -> U

impl<T> ToOwned for T where
T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Enum proc_macro::Level[−][src]

Variants (Non-exhaustive)

Trait Implementations

impl Clone for Level

fn clone(&self) -> Level

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

impl Debug for Level

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

impl Copy for Level

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

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,