Fixed Hashable Conformance to hash(into:)

ahmedrezik · ahmedrezik · commit 73f009209e99 · 2020-07-09T14:33:03.000+02:00
diff --git a/Graph/Graph/Edge.swift b/Graph/Graph/Edge.swift
@@ -29,13 +29,13 @@ extension Edge: CustomStringConvertible {
 
 extension Edge: Hashable {
 
-  public var hashValue: Int {
-    var string = "\(from.description)\(to.description)"
-    if weight != nil {
-      string.append("\(weight!)")
-    }
-    return string.hashValue
-  }
+    public func hash(into hasher: inout Hasher) {
+           hasher.combine(from)
+           hasher.combine(to)
+        if weight != nil {
+             hasher.combine(weight)
+          }
+         }
 }
 
 public func == <T>(lhs: Edge<T>, rhs: Edge<T>) -> Bool {
diff --git a/Graph/Graph/Vertex.swift b/Graph/Graph/Vertex.swift
@@ -24,8 +24,10 @@ extension Vertex: CustomStringConvertible {
 
 extension Vertex: Hashable {
 
-  public var hashValue: Int {
-    return "\(data)\(index)".hashValue
+  public func hasher(into hasher: inout Hasher){
+      
+      hasher.combine(data)
+      hasher.combine(index)
   }
 
 }

Original file line number	Diff line number	Diff line change
`@@ -24,8 +24,10 @@ extension Vertex: CustomStringConvertible {`
`24`	`24`
`25`	`25`	`extension Vertex: Hashable {`
`26`	`26`
`27`		`- public var hashValue: Int {`
`28`		`- return "\(data)\(index)".hashValue`
	`27`	`+ public func hasher(into hasher: inout Hasher){`
	`28`	`+`
	`29`	`+ hasher.combine(data)`
	`30`	`+ hasher.combine(index)`
`29`	`31`	`}`
`30`	`32`
`31`	`33`	`}`