Enum rustc_hir::hir::LocalSource

source ·

pub enum LocalSource {
    Normal,
    AsyncFn,
    AwaitDesugar,
    AssignDesugar(Span),
}

Expand description

Hints at the original code for a let statement.

Variants

`Normal`

A match _ { .. }.

`AsyncFn`

When lowering async functions, we create locals within the async move so that all parameters are dropped after the future is polled.

async fn foo(<pattern> @ x: Type) {
    async move {
        let <pattern> = x;
    }
}

`AwaitDesugar`

A desugared <expr>.await.

`AssignDesugar(Span)`

A desugared expr = expr, where the LHS is a tuple, struct or array. The span is that of the = sign.

Trait Implementations

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impl Clone for LocalSource

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fn clone(&self) -> LocalSource

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 LocalSource

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

Formats the value using the given formatter. Read more

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Auto Trait Implementations

impl RefUnwindSafe for LocalSource

impl UnwindSafe for LocalSource

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: 12 bytes

Size for each variant:

Normal: 0 bytes
AsyncFn: 0 bytes
AwaitDesugar: 0 bytes
AssignDesugar: 8 bytes

Enum rustc_hir::hir::LocalSource

Variants

Normal

AsyncFn

AwaitDesugar

AssignDesugar(Span)

Trait Implementations

impl Clone for LocalSource

fn clone(&self) -> LocalSource

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

impl Debug for LocalSource

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

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

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

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

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

impl Copy for LocalSource

Auto Trait Implementations

impl RefUnwindSafe for LocalSource

impl !Send for LocalSource

impl !Sync for LocalSource

impl Unpin for LocalSource

impl UnwindSafe for LocalSource

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

`Normal`

`AsyncFn`

`AwaitDesugar`

`AssignDesugar(Span)`

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

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

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