[Foundation] TimeZone: Modernize hashing

lorentey · lorentey · commit 562b6ecc04c3 · 2019-04-05T18:07:29.000-07:00
diff --git a/Darwin/Foundation-swiftoverlay/TimeZone.swift b/Darwin/Foundation-swiftoverlay/TimeZone.swift
@@ -196,11 +196,12 @@ public struct TimeZone : Hashable, Equatable, ReferenceConvertible {
     
     // MARK: -
     
-    public var hashValue : Int {
+    public func hash(into hasher: inout Hasher) {
         if _autoupdating {
-            return 1
+            hasher.combine(false)
         } else {
-            return _wrapped.hash
+            hasher.combine(true)
+            hasher.combine(_wrapped)
         }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -196,11 +196,12 @@ public struct TimeZone : Hashable, Equatable, ReferenceConvertible {`
`196`	`196`
`197`	`197`	`// MARK: -`
`198`	`198`
`199`		`- public var hashValue : Int {`
	`199`	`+ public func hash(into hasher: inout Hasher) {`
`200`	`200`	`if _autoupdating {`
`201`		`- return 1`
	`201`	`+ hasher.combine(false)`
`202`	`202`	`} else {`
`203`		`- return _wrapped.hash`
	`203`	`+ hasher.combine(true)`
	`204`	`+ hasher.combine(_wrapped)`
`204`	`205`	`}`
`205`	`206`	`}`
`206`	`207`