Struct rustc_hir::hir::Arm

pub struct Arm<'hir> {
    pub hir_id: HirId,
    pub span: Span,
    pub pat: &'hir Pat<'hir>,
    pub guard: Option<Guard<'hir>>,
    pub body: &'hir Expr<'hir>,
}

Represents a single arm of a match expression, e.g. <pat> (if <guard>) => <body>.

Fields

hir_id: HirId

span: Span

pat: &'hir Pat<'hir>

If this pattern and the optional guard matches, then body is evaluated.

guard: Option<Guard<'hir>>

Optional guard clause.

body: &'hir Expr<'hir>

The expression the arm evaluates to if this arm matches.

Trait Implementations

impl<'hir> Debug for Arm<'hir>

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

Formats the value using the given formatter.

impl<'hir, __CTX> HashStable<__CTX> for Arm<'hir> where
    __CTX: HashStableContext, 

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