Enum rustc_hir::hir::MatchSource

pub enum MatchSource {
    Normal,
    IfLetDesugar {
        contains_else_clause: bool,
    },
    IfLetGuardDesugar,
    WhileDesugar,
    WhileLetDesugar,
    ForLoopDesugar,
    TryDesugar,
    AwaitDesugar,
}

Hints at the original code for a match _ { .. }.

Variants

Normal

A match _ { .. }.

IfLetDesugar

An if let _ = _ { .. } (optionally with else { .. }).

Fields of IfLetDesugar

contains_else_clause: bool

IfLetGuardDesugar

An if let _ = _ => { .. } match guard.

WhileDesugar

A while _ { .. } (which was desugared to a loop { match _ { .. } }).

WhileLetDesugar

A while let _ = _ { .. } (which was desugared to a loop { match _ { .. } }).

ForLoopDesugar

A desugared for _ in _ { .. } loop.

TryDesugar

A desugared ? operator.

AwaitDesugar

A desugared <expr>.await.

Implementations

impl MatchSource

pub fn name(self) -> &'static str

Trait Implementations

impl Clone for MatchSource

fn clone(&self) -> MatchSource

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for MatchSource

impl Debug for MatchSource

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

Formats the value using the given formatter.

impl<__E: Encoder> Encodable<__E> for MatchSource

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>

impl Eq for MatchSource

impl Hash for MatchSource

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl<__CTX> HashStable<__CTX> for MatchSource where
    __CTX: HashStableContext, 

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq<MatchSource> for MatchSource

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

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

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

This method tests for !=.

impl StructuralEq for MatchSource

impl StructuralPartialEq for MatchSource