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nit: clarify "keep it around" comment

This commit is contained in:
Niko Matsakis 2018-07-13 01:18:35 -04:00
parent 666c365db3
commit 9d2999461f
1 changed files with 2 additions and 2 deletions
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4
src/librustc_data_structures/graph/scc/mod.rs
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@ -122,8 +122,8 @@ struct SccsConstruction<'c, G: DirectedGraph + WithNumNodes + WithSuccessors + '
/// A set used to strip duplicates. As we accumulate successors
/// into the successors_stack, we sometimes get duplicate entries.
/// We use this set to remove those -- we keep it around between
/// successors to amortize memory allocation costs.
/// We use this set to remove those -- we also keep its storage
/// around between successors to amortize memory allocation costs.
duplicate_set: FxHashSet<S>,
scc_data: SccData<S>,