Enum rustc::hir::MatchSource

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

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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

Variants

Normal

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

A match _ { .. }

IfLetDesugar

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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

Fields of IfLetDesugar

contains_else_clause: bool

🔬 This is a nightly-only experimental API. (rustc_private) this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

WhileLetDesugar

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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

ForLoopDesugar

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

A desugared for _ in _ { .. } loop

TryDesugar

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

A desugared ? operator

Trait Implementations

impl Clone for MatchSource

fn clone(&self) -> MatchSource

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for MatchSource

fn eq(&self, __arg_0: &MatchSource) -> bool

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

fn ne(&self, __arg_0: &MatchSource) -> bool

This method tests for !=.

impl Eq for MatchSource

impl Encodable for MatchSource

fn encode<__S: Encoder>(&self, __arg_0: &mut __S) -> Result<(), __S::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

impl Decodable for MatchSource

fn decode<__D: Decoder>(__arg_0: &mut __D) -> Result<MatchSource, __D::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

impl Hash for MatchSource

fn hash<__H: Hasher>(&self, __arg_0: &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 Debug for MatchSource

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Copy for MatchSource

impl<'gcx> HashStable<StableHashingContext<'gcx>> for MatchSource

fn hash_stable<W: StableHasherResult>(
    &self,
    hcx: &mut StableHashingContext<'gcx>,
    hasher: &mut StableHasher<W>
)

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?