[][src]Enum syntax_pos::hygiene::DesugaringKind

pub enum DesugaringKind {

The kind of compiler desugaring.



We desugar if c { i } else { e } to match $ExprKind::Use(c) { true => i, _ => e }. However, we do not want to blame c for unreachability but rather say that i is unreachable. This desugaring kind allows us to avoid blaming c. This also applies to while loops.


Desugaring of an impl Trait in return type position to an existential type Foo: Trait; and replacing the impl Trait with Foo.


Trait Implementations

impl Clone for DesugaringKind[src]

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl PartialEq<DesugaringKind> for DesugaringKind[src]

#[must_use] fn ne(&self, other: &Rhs) -> bool1.0.0[src]

This method tests for !=.

impl Copy for DesugaringKind[src]

impl Debug for DesugaringKind[src]

impl Encodable for DesugaringKind[src]

impl Decodable for DesugaringKind[src]

Auto Trait Implementations

Blanket Implementations

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.

impl<T> From<T> for T[src]

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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.

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

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

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

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

impl<T> Decodable for T where
    T: UseSpecializedDecodable

impl<E> SpecializationError for E[src]

impl<T> Erased for T[src]