OutlivesConstraintSet

rustc_borrowck::constraints

Struct OutlivesConstraintSet 

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pub(crate) struct OutlivesConstraintSet<'tcx> {
    outlives: IndexVec<OutlivesConstraintIndex, OutlivesConstraint<'tcx>>,
}
Expand description

A set of NLL region constraints. These include “outlives” constraints of the form R1: R2. Each constraint is identified by a unique OutlivesConstraintIndex and you can index into the set (constraint_set[i]) to access the constraint details.

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§outlives: IndexVec<OutlivesConstraintIndex, OutlivesConstraint<'tcx>>

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impl<'tcx> OutlivesConstraintSet<'tcx>

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pub(crate) fn push(&mut self, constraint: OutlivesConstraint<'tcx>)

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pub(crate) fn graph(&self, num_region_vars: usize) -> ConstraintGraph<Normal>

Constructs a “normal” graph from the constraint set; the graph makes it easy to find the constraints affecting a particular region.

N.B., this graph contains a “frozen” view of the current constraints. Any new constraints added to the OutlivesConstraintSet after the graph is built will not be present in the graph.

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pub(crate) fn reverse_graph( &self, num_region_vars: usize, ) -> ConstraintGraph<Reverse>

Like graph, but constraints a reverse graph where R1: R2 represents an edge R2 -> R1.

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pub(crate) fn outlives( &self, ) -> &IndexSlice<OutlivesConstraintIndex, OutlivesConstraint<'tcx>>

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impl<'tcx> Clone for OutlivesConstraintSet<'tcx>

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

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'tcx> Debug for OutlivesConstraintSet<'tcx>

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

Formats the value using the given formatter. Read more
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impl<'tcx> Default for OutlivesConstraintSet<'tcx>

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fn default() -> OutlivesConstraintSet<'tcx>

Returns the “default value” for a type. Read more
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impl<'tcx> Index<OutlivesConstraintIndex> for OutlivesConstraintSet<'tcx>

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type Output = OutlivesConstraint<'tcx>

The returned type after indexing.
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fn index(&self, i: OutlivesConstraintIndex) -> &Self::Output

Performs the indexing (container[index]) operation. Read more

Auto Trait Implementations§

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impl<'tcx> DynSend for OutlivesConstraintSet<'tcx>

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impl<'tcx> DynSync for OutlivesConstraintSet<'tcx>

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impl<'tcx> Freeze for OutlivesConstraintSet<'tcx>

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impl<'tcx> !RefUnwindSafe for OutlivesConstraintSet<'tcx>

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impl<'tcx> Send for OutlivesConstraintSet<'tcx>

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impl<'tcx> Sync for OutlivesConstraintSet<'tcx>

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impl<'tcx> Unpin for OutlivesConstraintSet<'tcx>

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impl<'tcx> !UnwindSafe for OutlivesConstraintSet<'tcx>

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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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