Fixed Swift 1.2 regressions and added some simple tests

Conflicts:
	Snap/ConstraintMaker.swift
	Snap/View+Snap.swift

Snap.xcodeproj/project.pbxproj

@@ -7,6 +7,8 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		EEAED5481A8F56A500777EF9 /* Snap.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = EEBCC9D819CC627D0083B827 /* Snap.framework */; };
+		EEAED5491A8F56BF00777EF9 /* SnapTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = EE91728C19CB304E007888CF /* SnapTests.swift */; };
 		EEBCC9F019CC64F80083B827 /* EdgeInsets.swift in Sources */ = {isa = PBXBuildFile; fileRef = EEBCC9EF19CC64F70083B827 /* EdgeInsets.swift */; };
 		EEBCC9F219CC65050083B827 /* View+Snap.swift in Sources */ = {isa = PBXBuildFile; fileRef = EEBCC9F119CC65040083B827 /* View+Snap.swift */; };
 		EEBCC9F419CC65110083B827 /* ConstraintAttributes.swift in Sources */ = {isa = PBXBuildFile; fileRef = EEBCC9F319CC65110083B827 /* ConstraintAttributes.swift */; };
@@ -46,6 +48,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				EEAED5481A8F56A500777EF9 /* Snap.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -233,6 +236,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				EEAED5491A8F56BF00777EF9 /* SnapTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

Snap/ConstraintMaker.swift

@@ -61,7 +61,7 @@ public class ConstraintMaker {
         return constraint
     }
     
-    internal class func makeConstraints(view: View, block: (make: ConstraintMaker) -> ()) {
+    internal class func makeConstraints(view: View, block: (make: ConstraintMaker) -> Void) {
         #if os(iOS)
         view.setTranslatesAutoresizingMaskIntoConstraints(false)
         #else
@@ -70,7 +70,7 @@ public class ConstraintMaker {
         let maker = ConstraintMaker(view: view)
         block(make: maker)
         
-        var layoutConstraints = view.snp_installedLayoutConstraints
+        var layoutConstraints = Array<LayoutConstraint>(view.snp_installedLayoutConstraints)
         for constraint in maker.constraints {
             layoutConstraints += constraint.install()
         }
@@ -78,7 +78,7 @@ public class ConstraintMaker {
         view.snp_installedLayoutConstraints = layoutConstraints
     }
     
-    internal class func remakeConstraints(view: View, block: (make: ConstraintMaker) -> ()) {
+    internal class func remakeConstraints(view: View, block: (make: ConstraintMaker) -> Void) {
         #if os(iOS)
         view.setTranslatesAutoresizingMaskIntoConstraints(false)
         #else
@@ -87,7 +87,7 @@ public class ConstraintMaker {
         let maker = ConstraintMaker(view: view)
         block(make: maker)
         
-        var layoutConstraints: Array<LayoutConstraint> = view.snp_installedLayoutConstraints
+        var layoutConstraints = Array<LayoutConstraint>(view.snp_installedLayoutConstraints)
         for existingLayoutConstraint in layoutConstraints {
             existingLayoutConstraint.constraint?.uninstall()
         }
@@ -100,7 +100,7 @@ public class ConstraintMaker {
         view.snp_installedLayoutConstraints = layoutConstraints
     }
     
-    internal class func updateConstraints(view: View, block: (make: ConstraintMaker) -> ()) {
+    internal class func updateConstraints(view: View, block: (make: ConstraintMaker) -> Void) {
         #if os(iOS)
         view.setTranslatesAutoresizingMaskIntoConstraints(false)
         #else
@@ -109,7 +109,7 @@ public class ConstraintMaker {
         let maker = ConstraintMaker(view: view)
         block(make: maker)
         
-        var layoutConstraints = view.snp_installedLayoutConstraints
+        var layoutConstraints = Array<LayoutConstraint>(view.snp_installedLayoutConstraints)
         for constraint in maker.constraints {
             layoutConstraints += constraint.installOnView(updateExisting: true)
         }
@@ -118,7 +118,8 @@ public class ConstraintMaker {
     }
     
     internal class func removeConstraints(view: View) {
-        for existingLayoutConstraint in view.snp_installedLayoutConstraints {
+        let eixsitingLayoutConstraints = Array<LayoutConstraint>(view.snp_installedLayoutConstraints)
+        for existingLayoutConstraint in eixsitingLayoutConstraints {
             existingLayoutConstraint.constraint?.uninstall()
         }
         

Snap/View+Snap.swift

@@ -68,15 +68,15 @@ public extension View {
     public var snp_centerWithinMargins: ConstraintItem { return ConstraintItem(object: self, attributes: ConstraintAttributes.CenterWithinMargins) }
     #endif
     
-    public func snp_makeConstraints(block: (make: ConstraintMaker) -> ()) {
+    public func snp_makeConstraints(block: (make: ConstraintMaker) -> Void) {
         ConstraintMaker.makeConstraints(self, block: block)
     }
     
-    public func snp_updateConstraints(block: (make: ConstraintMaker) -> ()) {
+    public func snp_updateConstraints(block: (make: ConstraintMaker) -> Void) {
         ConstraintMaker.updateConstraints(self, block: block)
     }
     
-    public func snp_remakeConstraints(block: (make: ConstraintMaker) -> ()) {
+    public func snp_remakeConstraints(block: (make: ConstraintMaker) -> Void) {
         ConstraintMaker.remakeConstraints(self, block: block)
     }
     
@@ -88,11 +88,10 @@ public extension View {
     
     internal var snp_installedLayoutConstraints: Array<LayoutConstraint> {
         get {
-            var constraints = objc_getAssociatedObject(self, &installedLayoutConstraintsKey) as? Array<LayoutConstraint>
+            if let constraints = objc_getAssociatedObject(self, &installedLayoutConstraintsKey) as? Array<LayoutConstraint> {
-            if constraints != nil {
+                return constraints
-                return constraints!
             }
-            return []
+            return Array<LayoutConstraint>()
         }
         set {
             objc_setAssociatedObject(self, &installedLayoutConstraintsKey, newValue, UInt(OBJC_ASSOCIATION_RETAIN_NONATOMIC))

SnapTests/SnapTests.swift

@@ -8,9 +8,12 @@
 
 import UIKit
 import XCTest
+import Snap
 
 class SnapTests: XCTestCase {
     
+    let container = UIView()
+    
     override func setUp() {
         super.setUp()
         // Put setup code here. This method is called before the invocation of each test method in the class.
@@ -21,16 +24,73 @@ class SnapTests: XCTestCase {
         super.tearDown()
     }
     
-    func testExample() {
+    func testMakeConstraints() {
-        // This is an example of a functional test case.
+        let v1 = UIView()
-        XCTAssert(true, "Pass")
+        let v2 = UIView()
+        self.container.addSubview(v1)
+        self.container.addSubview(v2)
+        
+        v1.snp_makeConstraints { (make) -> Void in
+            make.top.equalTo(v2.snp_top).offset(50)
+            make.left.equalTo(v2.snp_top).offset(50)
+            return
+        }
+        v2.snp_makeConstraints { (make) -> Void in
+            make.edges.equalTo(v1)
+            return
         }
         
-    func testPerformanceExample() {
-        // This is an example of a performance test case.
-        self.measureBlock() {
-            // Put the code you want to measure the time of here.
     }
+    
+    func testUpdateConstraints() {
+        let v1 = UIView()
+        let v2 = UIView()
+        self.container.addSubview(v1)
+        self.container.addSubview(v2)
+        
+        v1.snp_makeConstraints { (make) -> Void in
+            make.top.equalTo(v2.snp_top).offset(50)
+            make.left.equalTo(v2.snp_top).offset(50)
+            return
+        }
+        v1.snp_updateConstraints { (make) -> Void in
+            make.top.equalTo(v2.snp_top).offset(15)
+            return
+        }
+        
+    }
+    
+    func testRemakeConstraints() {
+        let v1 = UIView()
+        let v2 = UIView()
+        self.container.addSubview(v1)
+        self.container.addSubview(v2)
+        
+        v1.snp_makeConstraints { (make) -> Void in
+            make.top.equalTo(v2.snp_top).offset(50)
+            make.left.equalTo(v2.snp_top).offset(50)
+            return
+        }
+        v1.snp_remakeConstraints { (make) -> Void in
+            make.edges.equalTo(v2)
+            return
+        }
+        
+    }
+    
+    func testRemoveConstraints() {
+        let v1 = UIView()
+        let v2 = UIView()
+        self.container.addSubview(v1)
+        self.container.addSubview(v2)
+        
+        v1.snp_makeConstraints { (make) -> Void in
+            make.top.equalTo(v2.snp_top).offset(50)
+            make.left.equalTo(v2.snp_top).offset(50)
+            return
+        }
+        v1.snp_removeConstraints()
+        
     }
     
 }