Include missing hash helpers implementation

Levi McCallum · levi · commit 275fd3edddb7 · 2015-11-30T06:41:40.000-08:00
diff --git a/AsyncDisplayKit.xcodeproj/project.pbxproj b/AsyncDisplayKit.xcodeproj/project.pbxproj
@@ -162,7 +162,8 @@
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 		2577548B1BED252700737CA5 /* CKTextKitTailTruncater.mm in Sources */ = {isa = PBXBuildFile; fileRef = 257754781BED252700737CA5 /* CKTextKitTailTruncater.mm */; };
 		2577548C1BED252700737CA5 /* CKTextKitTruncating.h in Headers */ = {isa = PBXBuildFile; fileRef = 257754791BED252700737CA5 /* CKTextKitTruncating.h */; };
-		2577548E1BED278B00737CA5 /* CKEqualityHashHelpers.h in Sources */ = {isa = PBXBuildFile; fileRef = 2577548D1BED278B00737CA5 /* CKEqualityHashHelpers.h */; };
+		257754911BED28F300737CA5 /* CKEqualityHashHelpers.h in Headers */ = {isa = PBXBuildFile; fileRef = 2577548D1BED278B00737CA5 /* CKEqualityHashHelpers.h */; };
+		257754921BED28F300737CA5 /* CKEqualityHashHelpers.mm in Sources */ = {isa = PBXBuildFile; fileRef = 2577548F1BED289A00737CA5 /* CKEqualityHashHelpers.mm */; };
 		2767E9411BB19BD600EA9B77 /* ASViewController.h in Headers */ = {isa = PBXBuildFile; fileRef = ACC945A81BA9E7A0005E1FB8 /* ASViewController.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		2767E9421BB19BD600EA9B77 /* ASViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = ACC945AA1BA9E7C1005E1FB8 /* ASViewController.m */; };
 		2911485C1A77147A005D0878 /* ASControlNodeTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 2911485B1A77147A005D0878 /* ASControlNodeTests.m */; };
@@ -619,6 +620,7 @@
 		257754781BED252700737CA5 /* CKTextKitTailTruncater.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = CKTextKitTailTruncater.mm; path = TextKit/CKTextKitTailTruncater.mm; sourceTree = "<group>"; };
 		257754791BED252700737CA5 /* CKTextKitTruncating.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = CKTextKitTruncating.h; path = TextKit/CKTextKitTruncating.h; sourceTree = "<group>"; };
 		2577548D1BED278B00737CA5 /* CKEqualityHashHelpers.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = CKEqualityHashHelpers.h; path = TextKit/CKEqualityHashHelpers.h; sourceTree = "<group>"; };
+		2577548F1BED289A00737CA5 /* CKEqualityHashHelpers.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = CKEqualityHashHelpers.mm; sourceTree = "<group>"; };
 		2911485B1A77147A005D0878 /* ASControlNodeTests.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ASControlNodeTests.m; sourceTree = "<group>"; };
 		292C59991A956527007E5DD6 /* ASLayoutRangeType.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASLayoutRangeType.h; sourceTree = "<group>"; };
 		292C599A1A956527007E5DD6 /* ASRangeHandlerPreload.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASRangeHandlerPreload.h; sourceTree = "<group>"; };
@@ -1102,6 +1104,7 @@
 				257754781BED252700737CA5 /* CKTextKitTailTruncater.mm */,
 				257754791BED252700737CA5 /* CKTextKitTruncating.h */,
 				2577548D1BED278B00737CA5 /* CKEqualityHashHelpers.h */,
+				2577548F1BED289A00737CA5 /* CKEqualityHashHelpers.mm */,
 			);
 			name = TextKit;
 			sourceTree = "<group>";
@@ -1187,6 +1190,7 @@
 				058D0A6B195D05EC00B7D73C /* _ASAsyncTransactionContainer.h in Headers */,
 				058D0A6D195D05EC00B7D73C /* _ASAsyncTransactionGroup.h in Headers */,
 				058D0A72195D05F800B7D73C /* _ASCoreAnimationExtras.h in Headers */,
+				257754911BED28F300737CA5 /* CKEqualityHashHelpers.h in Headers */,
 				058D0A53195D05DC00B7D73C /* _ASDisplayLayer.h in Headers */,
 				058D0A55195D05DC00B7D73C /* _ASDisplayView.h in Headers */,
 				058D0A74195D05F800B7D73C /* _ASPendingState.h in Headers */,
@@ -1636,7 +1640,6 @@
 				2577547B1BED252700737CA5 /* CKTextKitAttributes.mm in Sources */,
 				430E7C911B4C23F100697A4C /* ASIndexPath.m in Sources */,
 				ACF6ED231B17843500DA7C62 /* ASInsetLayoutSpec.mm in Sources */,
-				2577548E1BED278B00737CA5 /* CKEqualityHashHelpers.h in Sources */,
 				ACF6ED4C1B17847A00DA7C62 /* ASInternalHelpers.mm in Sources */,
 				ACF6ED251B17843500DA7C62 /* ASLayout.mm in Sources */,
 				9C5FA3531B8F6ADF00A62714 /* ASLayoutOptions.mm in Sources */,
@@ -1651,6 +1654,7 @@
 				257754891BED252700737CA5 /* CKTextKitShadower.mm in Sources */,
 				ACF6ED2C1B17843500DA7C62 /* ASOverlayLayoutSpec.mm in Sources */,
 				0442850F1BAA64EC00D16268 /* ASMultidimensionalArrayUtils.mm in Sources */,
+				257754921BED28F300737CA5 /* CKEqualityHashHelpers.mm in Sources */,
 				055F1A3919ABD413004DAFF1 /* ASRangeController.mm in Sources */,
 				044285091BAA63FE00D16268 /* ASBatchFetching.m in Sources */,
 				292C59A11A956527007E5DD6 /* ASRangeHandlerPreload.mm in Sources */,
diff --git a/AsyncDisplayKit/CKEqualityHashHelpers.mm b/AsyncDisplayKit/CKEqualityHashHelpers.mm
@@ -0,0 +1,26 @@
+/*
+ *  Copyright (c) 2014-present, Facebook, Inc.
+ *  All rights reserved.
+ *
+ *  This source code is licensed under the BSD-style license found in the
+ *  LICENSE file in the root directory of this source tree. An additional grant
+ *  of patent rights can be found in the PATENTS file in the same directory.
+ *
+ */
+
+#import "CKEqualityHashHelpers.h"
+
+#import <functional>
+#import <objc/runtime.h>
+#import <stdio.h>
+#import <string>
+
+NSUInteger CKIntegerArrayHash(const NSUInteger *subhashes, NSUInteger count)
+{
+  uint64_t result = subhashes[0];
+  for (int ii = 1; ii < count; ++ii) {
+    result = CKHashCombine(result, subhashes[ii]);
+  }
+  return CKHash64ToNative(result);
+}
+
