Enum rustc_attr::builtin::AttrError

source · [−]

enum AttrError {
    MultipleItem(String),
    UnknownMetaItem(String, &'static [&'static str]),
    MissingSince,
    NonIdentFeature,
    MissingFeature,
    MultipleStabilityLevels,
    UnsupportedLiteral(UnsupportedLiteralReason, bool),
}

Variants

`MultipleItem(String)`

`UnknownMetaItem(String, &'static [&'static str])`

`MissingSince`

`NonIdentFeature`

`MissingFeature`

`MultipleStabilityLevels`

`UnsupportedLiteral(UnsupportedLiteralReason, bool)`

Auto Trait Implementations

impl RefUnwindSafe for AttrError

Blanket Implementations

source

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

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T, U> Into for Twhere
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.

source

impl<T, U> TryFrom for Twhere
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.

source

impl<T, U> TryInto for Twhere
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.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 48 bytes

Size for each variant:

MultipleItem: 31 bytes
UnknownMetaItem: 47 bytes
MissingSince: 0 bytes
NonIdentFeature: 0 bytes
MissingFeature: 0 bytes
MultipleStabilityLevels: 0 bytes
UnsupportedLiteral: 2 bytes

Enum rustc_attr::builtin::AttrError

Variants

`MultipleItem(String)`

`UnknownMetaItem(String, &'static [&'static str])`

`MissingSince`

`NonIdentFeature`

`MissingFeature`

`MultipleStabilityLevels`

`UnsupportedLiteral(UnsupportedLiteralReason, bool)`

Auto Trait Implementations

impl RefUnwindSafe for AttrError

impl Send for AttrError

impl Sync for AttrError

impl Unpin for AttrError

impl UnwindSafe for AttrError

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere
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 Twhere
U: From<T>,

fn into(self) -> U

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

type Error = Infallible

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

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

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

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

Layout

Enum rustc_attr::builtin::AttrError

Variants

MultipleItem(String)

UnknownMetaItem(String, &'static [&'static str])

MissingSince

NonIdentFeature

MissingFeature

MultipleStabilityLevels

UnsupportedLiteral(UnsupportedLiteralReason, bool)

Auto Trait Implementations

impl RefUnwindSafe for AttrError

impl Send for AttrError

impl Sync for AttrError

impl Unpin for AttrError

impl UnwindSafe for AttrError

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere 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 Twhere U: From<T>,

fn into(self) -> U

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

type Error = Infallible

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

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

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

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

Layout

`MultipleItem(String)`

`UnknownMetaItem(String, &'static [&'static str])`

`MissingSince`

`NonIdentFeature`

`MissingFeature`

`MultipleStabilityLevels`

`UnsupportedLiteral(UnsupportedLiteralReason, bool)`

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

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

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

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

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

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