Restore ClosedRange.Index: Hashable conformance

airspeedswift · airspeedswift · commit fb79ad24e390 · 2018-02-01T17:59:40.000-08:00
diff --git a/stdlib/public/core/ClosedRange.swift b/stdlib/public/core/ClosedRange.swift
@@ -167,8 +167,8 @@ extension ClosedRange.Index : Comparable {
   }
 }
 
-/* FIXME: compiler crash
-extension ClosedRange.Index: Hashable where Bound: Hashable {
+extension ClosedRange.Index: Hashable 
+where Bound: Strideable, Bound.Stride: SignedInteger, Bound: Hashable {
   public var hashValue: Int {
     switch self {
     case .inRange(let value):
@@ -178,7 +178,6 @@ extension ClosedRange.Index: Hashable where Bound: Hashable {
     }
   }
 }
-*/
 
 // FIXME: this should only be conformance to RandomAccessCollection but
 // the compiler balks without all 3

Original file line number	Diff line number	Diff line change
`@@ -167,8 +167,8 @@ extension ClosedRange.Index : Comparable {`
`167`	`167`	`}`
`168`	`168`	`}`
`169`	`169`
`170`		`-/* FIXME: compiler crash`
`171`		`-extension ClosedRange.Index: Hashable where Bound: Hashable {`
	`170`	`+extension ClosedRange.Index: Hashable`
	`171`	`+where Bound: Strideable, Bound.Stride: SignedInteger, Bound: Hashable {`
`172`	`172`	`public var hashValue: Int {`
`173`	`173`	`switch self {`
`174`	`174`	`case .inRange(let value):`
`@@ -178,7 +178,6 @@ extension ClosedRange.Index: Hashable where Bound: Hashable {`
`178`	`178`	`}`
`179`	`179`	`}`
`180`	`180`	`}`
`181`		`-*/`
`182`	`181`
`183`	`182`	`// FIXME: this should only be conformance to RandomAccessCollection but`
`184`	`183`	`// the compiler balks without all 3`