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This commit is contained in:
Nadrieril 2020-12-22 11:28:17 +00:00
parent 85fdb34d3a
commit be23694622
1 changed files with 4 additions and 4 deletions
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8
compiler/rustc_mir_build/src/thir/pattern/usefulness.rs
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@ -852,10 +852,10 @@ enum WitnessPreference {
/// We'll perform the following steps:
/// 1. Start with an empty witness
/// `Witness(vec![])`
/// 2. Push a witness `Some(_)` against the `None`
/// `Witness(vec![Some(_)])`
/// 3. Push a witness `true` against the `false`
/// `Witness(vec![Some(_), true])`
/// 2. Push a witness `true` against the `false`
/// `Witness(vec![true])`
/// 3. Push a witness `Some(_)` against the `None`
/// `Witness(vec![true, Some(_)])`
/// 4. Apply the `Pair` constructor to the witnesses
/// `Witness(vec![Pair(Some(_), true)])`
///