Struct rustc_mir_build::thir::pattern::const_to_pat::fallback_to_const_ref::FallbackToConstRef[−][src]

pub(super) struct FallbackToConstRef(());

Expand description

This error type signals that we encountered a non-struct-eq situation behind a reference. We bubble this up in order to get back to the reference destructuring and make that emit a const pattern instead of a deref pattern. This allows us to simply call PartialEq::eq on such patterns (since that function takes a reference) and not have to jump through any hoops to get a reference to the value.

Trait Implementations

impl Debug for FallbackToConstRef

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl RefUnwindSafe for FallbackToConstRef

impl Send for FallbackToConstRef

impl Sync for FallbackToConstRef

impl Unpin for FallbackToConstRef

impl UnwindSafe for FallbackToConstRef

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

pub fn from(t: T) -> T

Performs the conversion.

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

pub fn into(self) -> U

Performs the conversion.

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.

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

Layout

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

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