Enum proc_macro::Level

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#[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

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impl Clone for Level

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fn clone(&self) -> Level

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl Debug for Level

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

Formats the value using the given formatter. Read more

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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

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

Enum proc_macro::Level

Variants (Non-exhaustive)

`Error`

`Warning`

`Note`

`Help`

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,

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

Enum proc_macro::Level

Variants (Non-exhaustive)

Error

Warning

Note

Help

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,

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

`Error`

`Warning`

`Note`

`Help`

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>,