Enum rustc_ap_rustc_span::hygiene::DesugaringKind [−][src]
pub enum DesugaringKind { CondTemporary, QuestionMark, TryBlock, OpaqueTy, Async, Await, ForLoop(ForLoopLoc), }
Expand description
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
.
ForLoop(ForLoopLoc)
Trait Implementations
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
Auto Trait Implementations
impl RefUnwindSafe for DesugaringKind
impl Send for DesugaringKind
impl Sync for DesugaringKind
impl Unpin for DesugaringKind
impl UnwindSafe for DesugaringKind
Blanket Implementations
Mutably borrows from an owned value. Read more
Instruments this type with the provided Span
, returning an
Instrumented
wrapper. Read more
type Output = T
type Output = T
Should always be Self
pub fn vzip(self) -> V