Enum syntax_pos::hygiene::CompilerDesugaringKind

pub enum CompilerDesugaringKind {
    IfTemporary,
    QuestionMark,
    TryBlock,
    ExistentialType,
    Async,
    Await,
    ForLoop,
}

The kind of compiler desugaring.

Variants

IfTemporary

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.

QuestionMarkTryBlockExistentialType

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

AsyncAwaitForLoop

Methods

impl CompilerDesugaringKind

pub fn name(self) -> Symbol

Trait Implementations

impl Eq for CompilerDesugaringKind

impl PartialEq<CompilerDesugaringKind> for CompilerDesugaringKind

fn eq(&self, other: &CompilerDesugaringKind) -> bool

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

#[must_use]

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Copy for CompilerDesugaringKind

impl Clone for CompilerDesugaringKind

fn clone(&self) -> CompilerDesugaringKind

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CompilerDesugaringKind

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

Formats the value using the given formatter.

impl Hash for CompilerDesugaringKind

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl Encodable for CompilerDesugaringKind

fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>

impl Decodable for CompilerDesugaringKind

fn decode<__D: Decoder>(
    d: &mut __D
) -> Result<CompilerDesugaringKind, __D::Error>