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Rollup merge of #107168 - Nilstrieb:if-a-tait-falls-in-the-forest,can-we-know-it-wasnt-revealed, r=oli-obk

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Use a type-alias-impl-trait in `ObligationForest`
This commit is contained in:
Matthias Krüger
2023-01-26 15:02:21 +01:00
committed by GitHub
parent 70a665a005 f74ca88384
commit 3c145ff283
1 changed files with 1 additions and 2 deletions
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compiler/rustc_data_structures/src/obligation_forest/mod.rs
+1 -2
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@@ -139,8 +139,7 @@ pub enum ProcessResult<O, E> {
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
struct ObligationTreeId(usize);
type ObligationTreeIdGenerator =
std::iter::Map<std::ops::RangeFrom<usize>, fn(usize) -> ObligationTreeId>;
type ObligationTreeIdGenerator = impl Iterator<Item = ObligationTreeId>;
pub struct ObligationForest<O: ForestObligation> {
/// The list of obligations. In between calls to [Self::process_obligations],