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>,
}Expand description
Represents a single arm of a match expression, e.g.
<pat> (if <guard>) => <body>.
Fields
hir_id: HirIdspan: Spanpat: &'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
sourceimpl<'tcx> ArenaAllocatable<'tcx, IsNotCopy> for Arm<'tcx>
impl<'tcx> ArenaAllocatable<'tcx, IsNotCopy> for Arm<'tcx>
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut Self
fn allocate_from_iter<'a>(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = Self>
) -> &'a mut [Self]ⓘNotable traits for &[u8]impl Read for &[u8]impl Write for &mut [u8]
sourceimpl<'hir, __CTX> HashStable<__CTX> for Arm<'hir>where
__CTX: HashStableContext,
impl<'hir, __CTX> HashStable<__CTX> for Arm<'hir>where
__CTX: HashStableContext,
fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)
Auto Trait Implementations
impl<'hir> RefUnwindSafe for Arm<'hir>
impl<'hir> !Send for Arm<'hir>
impl<'hir> !Sync for Arm<'hir>
impl<'hir> Unpin for Arm<'hir>
impl<'hir> UnwindSafe for Arm<'hir>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Layout
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.
Size: 48 bytes