Trait RegionExt 

pub trait RegionExt<'tcx> {
    // Required methods
    fn new_early_param(
        tcx: TyCtxt<'tcx>,
        early_bound_region: EarlyParamRegion,
    ) -> Region<'tcx>;
    fn new_late_param(
        tcx: TyCtxt<'tcx>,
        scope: DefId,
        kind: LateParamRegionKind,
    ) -> Region<'tcx>;
    fn new_var(tcx: TyCtxt<'tcx>, v: RegionVid) -> Region<'tcx>;
    fn new_error(tcx: TyCtxt<'tcx>, guar: ErrorGuaranteed) -> Region<'tcx>;
    fn new_error_misc(tcx: TyCtxt<'tcx>) -> Region<'tcx>;
    fn new_error_with_message<S: Into<MultiSpan>>(
        tcx: TyCtxt<'tcx>,
        span: S,
        msg: &'static str,
    ) -> Region<'tcx>;
    fn new_from_kind(tcx: TyCtxt<'tcx>, kind: RegionKind<'tcx>) -> Region<'tcx>;
}

Required Methods

fn new_early_param( tcx: TyCtxt<'tcx>, early_bound_region: EarlyParamRegion, ) -> Region<'tcx>

fn new_late_param( tcx: TyCtxt<'tcx>, scope: DefId, kind: LateParamRegionKind, ) -> Region<'tcx>

fn new_var(tcx: TyCtxt<'tcx>, v: RegionVid) -> Region<'tcx>

fn new_error(tcx: TyCtxt<'tcx>, guar: ErrorGuaranteed) -> Region<'tcx>

Constructs a RegionKind::ReError region.

fn new_error_misc(tcx: TyCtxt<'tcx>) -> Region<'tcx>

Constructs a RegionKind::ReError region and registers a delayed bug to ensure it gets used.

fn new_error_with_message<S: Into<MultiSpan>>( tcx: TyCtxt<'tcx>, span: S, msg: &'static str, ) -> Region<'tcx>

Constructs a RegionKind::ReError region and registers a delayed bug with the given msg to ensure it gets used.

fn new_from_kind(tcx: TyCtxt<'tcx>, kind: RegionKind<'tcx>) -> Region<'tcx>

Avoid this in favour of more specific new_* methods, where possible, to avoid the cost of the match.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<'tcx> RegionExt<'tcx> for Region<'tcx>