Enum ConstArgKind

pub enum ConstArgKind<'hir> {
    Path(QPath<'hir>),
    Anon(&'hir AnonConst),
    Infer(Span),
}

See ConstArg.

Variants

Path(QPath<'hir>)

Note: Currently this is only used for bare const params (N where fn foo<const N: usize>(...)), not paths to any const (N where const N: usize = ...).

However, in the future, we’ll be using it for all of those.

Anon(&'hir AnonConst)

Infer(Span)

Note: Not all inferred consts are represented as ConstArgKind::Infer. In cases where it is ambiguous whether a generic arg is a type or a const, inference variables are represented as GenericArg::Infer instead.

Trait Implementations

impl<'hir> Clone for ConstArgKind<'hir>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'hir> Debug for ConstArgKind<'hir>

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

Formats the value using the given formatter.

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

where __CTX: HashStableContext,

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

impl<'hir> Copy for ConstArgKind<'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: 24 bytes

Size for each variant:

• Path: 24 bytes
• Anon: 16 bytes
• Infer: 12 bytes