Enum rustc_hir::OpaqueTyOrigin

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pub enum OpaqueTyOrigin {
    FnReturn(LocalDefId),
    AsyncFn(LocalDefId),
    TyAlias,
}

Expand description

From whence the opaque type came.

Variants

`FnReturn(LocalDefId)`

-> impl Trait

`AsyncFn(LocalDefId)`

async fn

`TyAlias`

type aliases: type Foo = impl Trait;

Trait Implementations

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impl Clone for OpaqueTyOrigin

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fn clone(&self) -> OpaqueTyOrigin

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 OpaqueTyOrigin

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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 eq(&self, other: &OpaqueTyOrigin) -> 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 StructuralEq for OpaqueTyOrigin

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impl StructuralPartialEq for OpaqueTyOrigin

Auto Trait Implementations

impl RefUnwindSafe for OpaqueTyOrigin

impl UnwindSafe for OpaqueTyOrigin

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: 8 bytes

Size for each variant:

FnReturn: 4 bytes
AsyncFn: 4 bytes
TyAlias: 0 bytes

Enum rustc_hir::OpaqueTyOrigin

Variants

FnReturn(LocalDefId)

AsyncFn(LocalDefId)

TyAlias

Trait Implementations

impl Clone for OpaqueTyOrigin

fn clone(&self) -> OpaqueTyOrigin

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

impl Debug for OpaqueTyOrigin

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

impl<__D: Decoder> Decodable<__D> for OpaqueTyOrigin

fn decode(__decoder: &mut __D) -> Self

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

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

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

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

impl PartialEq<OpaqueTyOrigin> for OpaqueTyOrigin

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

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

impl Copy for OpaqueTyOrigin

impl Eq for OpaqueTyOrigin

impl StructuralEq for OpaqueTyOrigin

impl StructuralPartialEq for OpaqueTyOrigin

Auto Trait Implementations

impl RefUnwindSafe for OpaqueTyOrigin

impl Send for OpaqueTyOrigin

impl Sync for OpaqueTyOrigin

impl Unpin for OpaqueTyOrigin

impl UnwindSafe for OpaqueTyOrigin

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

`FnReturn(LocalDefId)`

`AsyncFn(LocalDefId)`

`TyAlias`

impl<D: Decoder> Decodable<D> for OpaqueTyOrigin

fn decode(decoder: &mut D) -> Self

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

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

impl<CTX> HashStable<CTX> for OpaqueTyOriginwhere
__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>,