Struct rustc_hir::hir::AssocItemConstraint

pub struct AssocItemConstraint<'hir> {
    pub hir_id: HirId,
    pub ident: Ident,
    pub gen_args: &'hir GenericArgs<'hir>,
    pub kind: AssocItemConstraintKind<'hir>,
    pub span: Span,
}

A constraint on an associated item.

Examples

• the A = Ty and B = Ty in Trait<A = Ty, B = Ty>
• the G<Ty> = Ty in Trait<G<Ty> = Ty>
• the A: Bound in Trait<A: Bound>
• the RetTy in Trait(ArgTy, ArgTy) -> RetTy
• the C = { Ct } in Trait<C = { Ct }> (feature associated_const_equality)
• the f(..): Bound in Trait<f(..): Bound> (feature return_type_notation)

Fields

hir_id: HirId

ident: Ident

gen_args: &'hir GenericArgs<'hir>

kind: AssocItemConstraintKind<'hir>

span: Span

Implementations

impl<'hir> AssocItemConstraint<'hir>

pub fn ty(self) -> Option<&'hir Ty<'hir>>

Obtain the type on the RHS of an assoc ty equality constraint if applicable.

pub fn ct(self) -> Option<&'hir ConstArg<'hir>>

Obtain the const on the RHS of an assoc const equality constraint if applicable.

Trait Implementations

impl<'hir> Clone for AssocItemConstraint<'hir>

fn clone(&self) -> AssocItemConstraint<'hir>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'hir> Debug for AssocItemConstraint<'hir>

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

Formats the value using the given formatter.

impl<'hir, __CTX> HashStable<__CTX> for AssocItemConstraint<'hir>

where __CTX: HashStableContext,

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

impl<'hir> Copy for AssocItemConstraint<'hir>

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: 64 bytes