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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`
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Matthias Krüger 2023-01-26 15:02:21 +01:00 • committed by GitHub
commit 3c145ff283
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compiler/rustc_data_structures/src/obligation_forest/mod.rs
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@ -139,8 +139,7 @@ pub enum ProcessResult<O, E> {
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)] #[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
struct ObligationTreeId(usize); struct ObligationTreeId(usize);
type ObligationTreeIdGenerator = type ObligationTreeIdGenerator = impl Iterator<Item = ObligationTreeId>;
std::iter::Map<std::ops::RangeFrom<usize>, fn(usize) -> ObligationTreeId>;
pub struct ObligationForest<O: ForestObligation> { pub struct ObligationForest<O: ForestObligation> {
/// The list of obligations. In between calls to [Self::process_obligations], /// The list of obligations. In between calls to [Self::process_obligations],