Struct rustc::hir::Arm

pub struct Arm {
    pub attrs: HirVec<Attribute>,
    pub pats: HirVec<P<Pat>>,
    pub guard: Option<P<Expr>>,
    pub body: P<Expr>,
}

🔬 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?

represents one arm of a 'match'

Fields

attrs: HirVec<Attribute>

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

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pats: HirVec<P<Pat>>

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

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guard: Option<P<Expr>>

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

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body: P<Expr>

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

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Methods

impl Arm

pub fn contains_explicit_ref_binding(&self) -> Option<Mutability>

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

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Checks if the patterns for this arm contain any ref or ref mut bindings, and if yes whether its containing mutable ones or just immutables ones.

Trait Implementations

impl Clone for Arm

fn clone(&self) -> Arm

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for Arm

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

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

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

This method tests for !=.

impl Eq for Arm

impl Encodable for Arm

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 Arm

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

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

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impl Hash for Arm

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 Arm

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

Formats the value using the given formatter.

impl<'tcx> HashStable<StableHashingContext<'tcx>> for Arm

fn hash_stable<W: StableHasherResult>(
    &self,
    __ctx: &mut StableHashingContext<'tcx>,
    __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?