[−][src]Enum rustc_ap_syntax::source_map::hygiene::DesugaringKind
The kind of compiler desugaring.
Variants
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 type Foo = impl Trait;
and replacing the
impl Trait
with Foo
.
Trait Implementations
impl Clone for DesugaringKind
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fn clone(&self) -> DesugaringKind
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fn clone_from(&mut self, source: &Self)
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impl Decodable for DesugaringKind
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fn decode<__D>(d: &mut __D) -> Result<DesugaringKind, <__D as Decoder>::Error> where
__D: Decoder,
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__D: Decoder,
impl Debug for DesugaringKind
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impl Encodable for DesugaringKind
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impl Copy for DesugaringKind
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impl PartialEq<DesugaringKind> for DesugaringKind
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Auto Trait Implementations
impl Send for DesugaringKind
impl Sync for DesugaringKind
impl Unpin for DesugaringKind
impl UnwindSafe for DesugaringKind
impl RefUnwindSafe for DesugaringKind
Blanket Implementations
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Erased for T
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impl<T> Encodable for T where
T: UseSpecializedEncodable + ?Sized,
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T: UseSpecializedEncodable + ?Sized,
impl<T> Decodable for T where
T: UseSpecializedDecodable,
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T: UseSpecializedDecodable,