Enum FeedConstTy

pub enum FeedConstTy<'a, 'tcx> {
    Param(DefId, &'a [GenericArg<'tcx>]),
    No,
}

In some cases, hir::ConstArgs that are being used in the type system through const generics need to have their type “fed” to them using the query system.

Use this enum with <dyn HirTyLowerer>::lower_const_arg to instruct it with the desired behavior.

Variants

Param(DefId, &'a [GenericArg<'tcx>])

Feed the type.

The DefId belongs to the const param that we are supplying this (anon) const arg to.

The list of generic args is used to instantiate the parameters used by the type of the const param specified by DefId.

No

Don’t feed the type.

Trait Implementations

impl<'a, 'tcx> Clone for FeedConstTy<'a, 'tcx>

fn clone(&self) -> FeedConstTy<'a, 'tcx>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, 'tcx> Debug for FeedConstTy<'a, 'tcx>

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

Formats the value using the given formatter.

impl<'a, 'tcx> Copy for FeedConstTy<'a, 'tcx>

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:

• Param: 24 bytes
• No: 0 bytes