Merge pull request #20 from ankurp/discardable

Adding @discardableResult for each functions in Array

Cent.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "Cent"
-  s.version      = "6.0.2"
+  s.version      = "6.0.3"
   s.summary      = "Extension for common object types for Swift Language"
   s.homepage     = "https://github.com/ankurp/Cent"
   s.license      = { :type => "MIT", :file => "LICENSE" }
@@ -12,5 +12,5 @@ Pod::Spec.new do |s|
   s.osx.deployment_target = "10.10"
   s.tvos.deployment_target = "9.0"
   s.watchos.deployment_target = "2.0"
-  s.dependency "Dollar", "~> 6.0.0"
+  s.dependency "Dollar", "~> 6.1.0"
 end

Cent.xcodeproj/project.pbxproj

@@ -80,6 +80,7 @@
 		92180C6E1C711845003BA0E3 /* Dollar.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = Dollar.xcodeproj; path = Dollar/Dollar.xcodeproj; sourceTree = "<group>"; };
 		924F92DC195F8338003DBB60 /* Cent.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Cent.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		92E6688119F0B89600BB4FB8 /* CentTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = CentTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
+		92EF83611DCF815700D7F4FD /* Try.playground */ = {isa = PBXFileReference; lastKnownFileType = file.playground; path = Try.playground; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -113,6 +114,7 @@
 		924F92D2195F8338003DBB60 = {
 			isa = PBXGroup;
 			children = (
+				92EF83611DCF815700D7F4FD /* Try.playground */,
 				92180C6E1C711845003BA0E3 /* Dollar.xcodeproj */,
 				924F92DE195F8338003DBB60 /* Cent */,
 				924F92EB195F8338003DBB60 /* CentTests */,

Package.swift

@@ -3,5 +3,5 @@ import PackageDescription
 let package = Package(
     name: "Cent",
     dependencies: [
-        .Package(url: "https://github.com/ankurp/Dollar", majorVersion: 6, minor: 0)
+        .Package(url: "https://github.com/ankurp/Dollar", majorVersion: 6, minor: 1)
     ])

Sources/Array.swift

@@ -39,7 +39,7 @@ public extension Array {
     ///
     /// - parameter callback: The callback function to invoke that take an element
     /// - returns: array itself
-    func eachWithIndex(callback: (Int, Element) -> ()) -> [Element] {
+    @discardableResult func eachWithIndex(callback: (Int, Element) -> ()) -> [Element] {
         for (index, elem) in self.enumerated() {
             callback(index, elem)
         }
@@ -50,8 +50,8 @@ public extension Array {
     ///
     /// - parameter callback: The callback function to invoke
     /// - returns: The array itself
-    func each(callback: (Element) -> ()) -> [Element] {
-        _ = self.eachWithIndex { (index, elem) -> () in
+    @discardableResult func each(callback: (Element) -> ()) -> [Element] {
+        self.eachWithIndex { (index, elem) -> () in
             callback(elem)
         }
         return self
@@ -62,7 +62,7 @@ public extension Array {
     /// - parameter when: The condition to check each element against
     /// - parameter callback: The callback function to invoke
     /// - returns: The array itself
-    func each(when: (Element) -> Bool, callback: (Element) -> ()) -> [Element] {
+    @discardableResult func each(when: (Element) -> Bool, callback: (Element) -> ()) -> [Element] {
         return $.each(self, when: when, callback: callback)
     }
 

Try.playground/Contents.swift

@@ -0,0 +1,3 @@
+import Cent
+
+[1, 2, 3].each { print($0) }

Try.playground/contents.xcplayground

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='ios'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>