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Merge {With,Graph}{Successors,Predecessors} into {Successors,Predecessors}

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Now with GAT!
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Maybe Waffle
2024-04-14 15:40:26 +00:00
parent 398da593a5
commit 0d5fc9bf58
15 changed files with 78 additions and 133 deletions
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12
compiler/rustc_data_structures/src/graph/vec_graph/mod.rs
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@@ -1,4 +1,4 @@
use crate::graph::{DirectedGraph, GraphSuccessors, WithNumEdges, WithSuccessors};
use crate::graph::{DirectedGraph, Successors, WithNumEdges};
use rustc_index::{Idx, IndexVec};
#[cfg(test)]
@@ -92,14 +92,10 @@ impl<N: Idx> WithNumEdges for VecGraph<N> {
}
}
impl<'graph, N: Idx> GraphSuccessors<'graph> for VecGraph<N> {
type Item = N;
impl<N: Idx + Ord> Successors for VecGraph<N> {
type Successors<'g> = std::iter::Cloned<std::slice::Iter<'g, N>>;
type Iter = std::iter::Cloned<std::slice::Iter<'graph, N>>;
}
impl<N: Idx + Ord> WithSuccessors for VecGraph<N> {
fn successors(&self, node: N) -> <Self as GraphSuccessors<'_>>::Iter {
fn successors(&self, node: N) -> Self::Successors<'_> {
self.successors(node).iter().cloned()
}
}