Struct rustc_hir::Arm[−][src]

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>
Expand description

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

guard: Option<Guard<'hir>>
Expand description

Optional guard clause.

body: &'hir Expr<'hir>
Expand description

The expression the arm evaluates to if this arm matches.

Trait Implementations

impl<'hir> Debug for Arm<'hir>[src]

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

Formats the value using the given formatter. Read more

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

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

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

impl<T> Any for T where
    T: 'static + ?Sized, [src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.