Use hash(into:) instead of hashValue for UnorderedPair Hashable conformance (#187)

jsbean · web-flow · commit ee95d59a077e · 2018-10-08T20:29:20.000-04:00
diff --git a/Sources/DataStructures/Pair/UnorderedPair.swift b/Sources/DataStructures/Pair/UnorderedPair.swift
@@ -54,7 +54,7 @@ extension UnorderedPair: Hashable where T: Hashable {
 
     /// Implements hashable requirement.
     @inlinable
-    public var hashValue: Int {
-        return a.hashValue ^ b.hashValue
+    public func hash(into hasher: inout Hasher) {
+        hasher.combine(a.hashValue ^ b.hashValue)
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -54,7 +54,7 @@ extension UnorderedPair: Hashable where T: Hashable {`
`54`	`54`
`55`	`55`	`/// Implements hashable requirement.`
`56`	`56`	`@inlinable`
`57`		`- public var hashValue: Int {`
`58`		`- return a.hashValue ^ b.hashValue`
	`57`	`+ public func hash(into hasher: inout Hasher) {`
	`58`	`+ hasher.combine(a.hashValue ^ b.hashValue)`
`59`	`59`	`}`
`60`	`60`	`}`