Struct rustc_borrowck::constraints::graph::Reverse

pub(crate) struct Reverse;

In reverse mode, a R1: R2 constraint results in an edge R2 -> R1. We use this for optimizing liveness computation, because then we wish to iterate from a region (e.g., R2) to all the regions that will outlive it (e.g., R1).

Trait Implementations

impl Clone for Reverse

fn clone(&self) -> Reverse

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ConstraintGraphDirection for Reverse

fn start_region(c: &OutlivesConstraint<'_>) -> RegionVid

fn end_region(c: &OutlivesConstraint<'_>) -> RegionVid

fn is_normal() -> bool

impl Debug for Reverse

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

Formats the value using the given formatter.

impl Copy for Reverse

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.

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