Added Observable

pedrommcarrasco · Apr 1, 2019 · 38e490a · 38e490a
1 parent 9d9bee8
commit 38e490a
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Showing 3 changed files with 37 additions and 1 deletion.
diff --git a/Sucrose.podspec b/Sucrose.podspec
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
   s.swift_version = "5.0"
   s.name         = "Sucrose"
-  s.version      = "3.2.0"
+  s.version      = "3.3.0"
   s.summary      = "🍬 Everyday sugar"
   s.description  = "Collection of handy methods & objects"
 

diff --git a/Sucrose.xcodeproj/project.pbxproj b/Sucrose.xcodeproj/project.pbxproj
@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		209692162252C57A007EF9DB /* Observable.swift in Sources */ = {isa = PBXBuildFile; fileRef = 209692152252C57A007EF9DB /* Observable.swift */; };
 		20D4D24021E67CEF00A3F80A /* Sucrose.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 20D4D23621E67CEF00A3F80A /* Sucrose.framework */; };
 		20D4D25121E67E5600A3F80A /* Collection+SafeIndex.swift in Sources */ = {isa = PBXBuildFile; fileRef = 20D4D25021E67E5600A3F80A /* Collection+SafeIndex.swift */; };
 		20D4D25721E67ED000A3F80A /* NSObject+Create.swift in Sources */ = {isa = PBXBuildFile; fileRef = 20D4D25621E67ED000A3F80A /* NSObject+Create.swift */; };
@@ -44,6 +45,7 @@
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
+		209692152252C57A007EF9DB /* Observable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Observable.swift; sourceTree = "<group>"; };
 		20D4D23621E67CEF00A3F80A /* Sucrose.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Sucrose.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		20D4D23A21E67CEF00A3F80A /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		20D4D23F21E67CEF00A3F80A /* SucroseTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = SucroseTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -155,6 +157,7 @@
 			isa = PBXGroup;
 			children = (
 				20D4D26121E6800900A3F80A /* Weak.swift */,
+				209692152252C57A007EF9DB /* Observable.swift */,
 			);
 			path = Objects;
 			sourceTree = "<group>";
@@ -255,6 +258,7 @@
 			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (
+				en,
 			);
 			mainGroup = 20D4D22C21E67CEF00A3F80A;
 			productRefGroup = 20D4D23721E67CEF00A3F80A /* Products */;
@@ -301,6 +305,7 @@
 				20D4D25921E67F0600A3F80A /* UIButton+Init.swift in Sources */,
 				20D4D26221E6800900A3F80A /* Weak.swift in Sources */,
 				20D4D25F21E67FAA00A3F80A /* UIViewController+Hierarchy.swift in Sources */,
+				209692162252C57A007EF9DB /* Observable.swift in Sources */,
 				531857832215A5D700009D11 /* UIView+Nameable.swift in Sources */,
 				20D4D25B21E67F3D00A3F80A /* UIStackView+Hierarchy.swift in Sources */,
 				531857872215B5BC00009D11 /* UIView+Shape.swift in Sources */,

diff --git a/Sucrose/Objects/Observable.swift b/Sucrose/Objects/Observable.swift
@@ -0,0 +1,31 @@
+//
+//  Observable.swift
+//  Sucrose
+//
+//  Created by Pedro Carrasco on 01/04/2019.
+//  Copyright © 2019 Pedro Carrasco. All rights reserved.
+//
+
+import Foundation
+
+public final class Observable<T> {
+    public typealias Observer = (T) -> ()
+
+    public var value: T {
+        didSet { observer?(value) }
+    }
+
+    private var observer: Observer?
+
+    public init(_ value: T) {
+        self.value = value
+    }
+}
+
+extension Observable {
+
+    public func subscribe(_ observer: Observer?) {
+        self.observer = observer
+        observer?(value)
+    }
+}