From 68bebfd105e893ac922ba1702fff3a7b1e3be1be Mon Sep 17 00:00:00 2001
From: ketzusaka <james@weebly.com>
Date: Thu, 16 Jun 2016 14:04:37 -0700
Subject: [PATCH] Add support for Swift 2.3

This updates the code to work under both 2.2 and 2.3 while developers handle their transition period up to Swift 3. The project file is also updated to indicate the last migration, and the version of swift. The version instructs Xcode 8 which internal toolchain is to be used.
---
 SnapKit.xcodeproj/project.pbxproj | 6 ++++++
 Source/ConstraintAttributes.swift | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/SnapKit.xcodeproj/project.pbxproj b/SnapKit.xcodeproj/project.pbxproj
index d664215..08ec7e2 100644
--- a/SnapKit.xcodeproj/project.pbxproj
+++ b/SnapKit.xcodeproj/project.pbxproj
@@ -463,9 +463,11 @@
 					};
 					EEBCC9D719CC627D0083B827 = {
 						CreatedOnToolsVersion = 6.0;
+						LastSwiftMigration = 0800;
 					};
 					EEBCC9E119CC627D0083B827 = {
 						CreatedOnToolsVersion = 6.0;
+						LastSwiftMigration = 0800;
 					};
 					EECDB3791AC0C9D4006BBC11 = {
 						CreatedOnToolsVersion = 6.2;
@@ -882,6 +884,7 @@
 				PRODUCT_NAME = SnapKit;
 				SKIP_INSTALL = YES;
 				SUPPORTED_PLATFORMS = "iphonesimulator iphoneos";
+				SWIFT_VERSION = 2.3;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -903,6 +906,7 @@
 				PRODUCT_NAME = SnapKit;
 				SKIP_INSTALL = YES;
 				SUPPORTED_PLATFORMS = "iphonesimulator iphoneos";
+				SWIFT_VERSION = 2.3;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -916,6 +920,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "io.snapkit.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 2.3;
 			};
 			name = Debug;
 		};
@@ -927,6 +932,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "io.snapkit.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 2.3;
 			};
 			name = Release;
 		};
diff --git a/Source/ConstraintAttributes.swift b/Source/ConstraintAttributes.swift
index 95bfddb..304a3c8 100644
--- a/Source/ConstraintAttributes.swift
+++ b/Source/ConstraintAttributes.swift
@@ -130,7 +130,11 @@ internal struct ConstraintAttributes: OptionSetType, BooleanType {
             attrs.append(.CenterY)
         }
         if (self.contains(ConstraintAttributes.Baseline)) {
+            #if swift(>=2.3)
+            attrs.append(.LastBaseline)
+            #else
             attrs.append(.Baseline)
+            #endif
         }
         
         #if os(iOS) || os(tvOS)