Xcode 12 build

Author: horothesun

Example/ImmutableGraph.xcodeproj/project.pbxproj

@@ -170,7 +170,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0720;
-				LastUpgradeCheck = 0900;
+				LastUpgradeCheck = 1200;
 				ORGANIZATIONNAME = CocoaPods;
 				TargetAttributes = {
 					607FACE41AFB9204008FA782 = {
@@ -280,14 +280,17 @@
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -334,14 +337,17 @@
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;

Example/Podfile.lock

@@ -9,7 +9,7 @@ EXTERNAL SOURCES:
     :path: "../"
 
 SPEC CHECKSUMS:
-  ImmutableGraph: df24e5e00d06c29b108eff315840e3042389aa8c
+  ImmutableGraph: 5e26222f4fdafc7b9e5b8196dbc16758bba6b563
 
 PODFILE CHECKSUM: a68ff2910ea3747fe37b2fd2552bb335e940447a
 

Example/Pods/Local Podspecs/ImmutableGraph.podspec.json

@@ -28,6 +28,7 @@ Functional Swift graph algorithms: DFS, BFS and FindPath on immutable graphs dev
   s.source           = { :git => 'https://github.com/horothesun/ImmutableGraph.git', :tag => s.version.to_s }
   # s.social_media_url = 'https://twitter.com/<TWITTER_USERNAME>'
 
+  s.swift_versions = '5.0'
   s.ios.deployment_target = '9.0'
 
   s.source_files = 'ImmutableGraph/Classes/**/*'

Example/Pods/Manifest.lock

@@ -13,7 +13,7 @@ public protocol Weightable { var weight: Double { get } }
 public protocol WeightedEdgeProtocol: EdgeProtocol, Weightable { }
 
 
-public struct Edge<V>: EdgeProtocol
+public struct Edge<V>: EdgeProtocol, Hashable
     where V: Equatable {
 
     public let source: V
@@ -25,10 +25,8 @@ public struct Edge<V>: EdgeProtocol
         self.destination = destination
     }
 
-    public var hashValue: Int {
-        get {
-            return "\(source)->\(destination)".hashValue
-        }
+    public func hash(into hasher: inout Hasher) {
+        hasher.combine("\(source)->\(destination)")
     }
 
     public static func ==(lhs: Edge, rhs: Edge) -> Bool {
@@ -41,7 +39,7 @@ public struct Edge<V>: EdgeProtocol
 }
 
 
-public struct WeightedEdge<V>: WeightedEdgeProtocol
+public struct WeightedEdge<V>: WeightedEdgeProtocol, Hashable
     where V: Equatable {
 
     public let source: V
@@ -56,10 +54,8 @@ public struct WeightedEdge<V>: WeightedEdgeProtocol
         self.weight = weight
     }
 
-    public var hashValue: Int {
-        get {
-            return "\(source)-(\(weight))->\(destination)".hashValue
-        }
+    public func hash(into hasher: inout Hasher) {
+        hasher.combine("\(source)-(\(weight))->\(destination)")
     }
 
     public static func ==(lhs: WeightedEdge, rhs: WeightedEdge) -> Bool {