rustc_borrowck::constraints::graph

Trait ConstraintGraphDirection

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pub(crate) trait ConstraintGraphDirection: Copy + 'static {
    // Required methods
    fn start_region(c: &OutlivesConstraint<'_>) -> RegionVid;
    fn end_region(c: &OutlivesConstraint<'_>) -> RegionVid;
    fn is_normal() -> bool;
}
Expand description

Marker trait that controls whether a R1: R2 constraint represents an edge R1 -> R2 or R2 -> R1.

Required Methods§

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

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

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fn is_normal() -> bool

Object Safety§

This trait is not object safe.

Implementors§