Enum rustc_hir::TraitBoundModifier

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pub enum TraitBoundModifier {
    None,
    Maybe,
    MaybeConst,
}

Expand description

A modifier on a bound, currently this is only used for ?Sized, where the modifier is Maybe. Negative bounds should also be handled here.

Variants

`None`

`Maybe`

`MaybeConst`

Trait Implementations

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impl Clone for TraitBoundModifier

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fn clone(&self) -> TraitBoundModifier

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 TraitBoundModifier

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

Formats the value using the given formatter. Read more

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fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more

1.3.0 · source

fn hash_slice<H>(data: &[Self], state: &mut H)where
H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

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impl<CTX> HashStable<CTX> for TraitBoundModifierwhere
__CTX: HashStableContext,

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fn hash_stable(&self, hcx: &mut CTX, __hasher: &mut StableHasher)

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impl PartialEq<TraitBoundModifier> for TraitBoundModifier

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fn eq(&self, other: &TraitBoundModifier) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0 · source

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

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impl Copy for TraitBoundModifier

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impl Eq for TraitBoundModifier

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impl StructuralEq for TraitBoundModifier

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impl StructuralPartialEq for TraitBoundModifier

Auto Trait Implementations

impl RefUnwindSafe for TraitBoundModifier

impl Send for TraitBoundModifier

impl Sync for TraitBoundModifier

impl Unpin for TraitBoundModifier

impl UnwindSafe for TraitBoundModifier

Blanket Implementations

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,

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fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T

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fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &[u8]`impl Read for &[u8]impl Write for &mut [u8]`

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impl<T> Borrow<T> for Twhere
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 Twhere
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 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.

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impl<T> ToOwned for Twhere
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 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.

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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: 1 byte

Size for each variant:

None: 0 bytes
Maybe: 0 bytes
MaybeConst: 0 bytes

Enum rustc_hir::TraitBoundModifier

Variants

None

Maybe

MaybeConst

Trait Implementations

impl Clone for TraitBoundModifier

fn clone(&self) -> TraitBoundModifier

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

impl Debug for TraitBoundModifier

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

impl<__E: Encoder> Encodable<__E> for TraitBoundModifier

fn encode(&self, __encoder: &mut __E)

impl Hash for TraitBoundModifier

fn hash<__H: Hasher>(&self, state: &mut __H)

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher,

impl<__CTX> HashStable<__CTX> for TraitBoundModifierwhere __CTX: HashStableContext,

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq<TraitBoundModifier> for TraitBoundModifier

fn eq(&self, other: &TraitBoundModifier) -> bool

fn ne(&self, other: &Rhs) -> bool

impl Copy for TraitBoundModifier

impl Eq for TraitBoundModifier

impl StructuralEq for TraitBoundModifier

impl StructuralPartialEq for TraitBoundModifier

Auto Trait Implementations

impl RefUnwindSafe for TraitBoundModifier

impl Send for TraitBoundModifier

impl Sync for TraitBoundModifier

impl Unpin for TraitBoundModifier

impl UnwindSafe for TraitBoundModifier

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere T: Copy,

fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T

fn allocate_from_iter( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>) -> &'a mut [T]ⓘNotable traits for &[u8]impl Read for &[u8]impl Write for &mut [u8]

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> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

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

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

`None`

`Maybe`

`MaybeConst`

impl<E: Encoder> Encodable<E> for TraitBoundModifier

fn encode(&self, encoder: &mut E)

fn hash<H: Hasher>(&self, state: &mut H)

fn hash_slice<H>(data: &[Self], state: &mut H)where
H: Hasher,

impl<CTX> HashStable<CTX> for TraitBoundModifierwhere
__CTX: HashStableContext,

fn hash_stable(&self, hcx: &mut CTX, __hasher: &mut StableHasher)

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

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,

fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &[u8]`impl Read for &[u8]impl Write for &mut [u8]`

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> ToOwned for Twhere
T: Clone,

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

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