Enum NllRegionVariableOrigin 

pub enum NllRegionVariableOrigin<'tcx> {
    FreeRegion,
    Placeholder(Placeholder<TyCtxt<'tcx>, BoundRegion>),
    Existential {
        name: Option<Symbol>,
    },
}

Variants

FreeRegion

During NLL region processing, we create variables for free regions that we encounter in the function signature and elsewhere. This origin indices we’ve got one of those.

Placeholder(Placeholder<TyCtxt<'tcx>, BoundRegion>)

“Universal” instantiation of a higher-ranked region (e.g., from a for<'a> T binder). Meant to represent “any region”.

Existential

Fields

name: Option<Symbol>

Trait Implementations

impl<'tcx> Clone for NllRegionVariableOrigin<'tcx>

fn clone(&self) -> NllRegionVariableOrigin<'tcx>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for NllRegionVariableOrigin<'tcx>

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

Formats the value using the given formatter.

impl<'tcx> Copy for NllRegionVariableOrigin<'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: 16 bytes

Size for each variant:

• FreeRegion: 0 bytes
• Placeholder: 16 bytes
• Existential: 8 bytes