[][src]Enum rustc::hir::BindingAnnotation

pub enum BindingAnnotation {
    Unannotated,
    Mutable,
    Ref,
    RefMut,
}
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Explicit binding annotations given in the HIR for a binding. Note that this is not the final binding mode that we infer after type inference.

Variants

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No binding annotation given: this means that the final binding mode will depend on whether we have skipped through a & reference when matching. For example, the x in Some(x) will have binding mode None; if you do let Some(x) = &Some(22), it will ultimately be inferred to be by-reference.

Note that implicit reference skipping is not implemented yet (#42640).

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Annotated with mut x -- could be either ref or not, similar to None.

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Annotated as ref, like ref x

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Annotated as ref mut x.

Trait Implementations

impl Clone for BindingAnnotation
[src]

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

impl PartialEq for BindingAnnotation
[src]

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

This method tests for !=.

impl Encodable for BindingAnnotation
[src]

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impl Decodable for BindingAnnotation
[src]

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impl Debug for BindingAnnotation
[src]

Formats the value using the given formatter. Read more

impl Copy for BindingAnnotation
[src]

impl<'a, 'tcx> HashStable<StableHashingContext<'a>> for BindingAnnotation
[src]

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Auto Trait Implementations

impl Send for BindingAnnotation

impl Sync for BindingAnnotation

Blanket Implementations

impl<T> MaybeResult for T
[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

impl<'a, T> Captures for T where
    T: ?Sized
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

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

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

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

impl<T> From for T
[src]

Performs the conversion.

impl<T, U> Into for T where
    U: From<T>, 
[src]

Performs the conversion.

impl<T, U> TryFrom for T where
    T: From<U>, 
[src]

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Immutably borrows from an owned value. Read more

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
[src]

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

impl<T> BorrowMut for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Mutably borrows from an owned value. Read more

impl<T> Any for T where
    T: 'static + ?Sized
[src]

🔬 This is a nightly-only experimental API. (get_type_id)

this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

impl<T> Encodable for T where
    T: UseSpecializedEncodable + ?Sized
[src]

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impl<T> Decodable for T where
    T: UseSpecializedDecodable
[src]

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impl<E> SpecializationError for E
[src]

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Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more

impl<T> Erased for T
[src]

impl<T> Send for T where
    T: ?Sized
[src]

impl<T> Sync for T where
    T: ?Sized
[src]

impl<T> Erased for T