From 29a12834b0d64b36a366c171d3270f06c0cbf09c Mon Sep 17 00:00:00 2001
From: Samuel Hsiung <hsiung@gmail.com>
Date: Thu, 29 Oct 2015 19:39:32 -0700
Subject: [PATCH] adds convenience methods to return a vertical and horizontal
 stack spec

---
 AsyncDisplayKit/Layout/ASStackLayoutSpec.h  | 10 ++++++++++
 AsyncDisplayKit/Layout/ASStackLayoutSpec.mm | 14 ++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/AsyncDisplayKit/Layout/ASStackLayoutSpec.h b/AsyncDisplayKit/Layout/ASStackLayoutSpec.h
index dd331f1405..ebf7130bfe 100644
--- a/AsyncDisplayKit/Layout/ASStackLayoutSpec.h
+++ b/AsyncDisplayKit/Layout/ASStackLayoutSpec.h
@@ -57,4 +57,14 @@
  */
 + (instancetype)stackLayoutSpecWithDirection:(ASStackLayoutDirection)direction spacing:(CGFloat)spacing justifyContent:(ASStackLayoutJustifyContent)justifyContent alignItems:(ASStackLayoutAlignItems)alignItems children:(NSArray *)children;
 
+/**
+ * @return A stack layout spec with direction of ASStackLayoutDirectionVertical
+ **/
++ (instancetype)verticalStackLayoutSpec;
+
+/**
+ * @return A stack layout spec with direction of ASStackLayoutDirectionHorizontal
+ **/
++ (instancetype)horizontalStackLayoutSpec;
+
 @end
diff --git a/AsyncDisplayKit/Layout/ASStackLayoutSpec.mm b/AsyncDisplayKit/Layout/ASStackLayoutSpec.mm
index 2269ffffeb..0763bf2615 100644
--- a/AsyncDisplayKit/Layout/ASStackLayoutSpec.mm
+++ b/AsyncDisplayKit/Layout/ASStackLayoutSpec.mm
@@ -38,6 +38,20 @@
   return [[self alloc] initWithDirection:direction spacing:spacing justifyContent:justifyContent alignItems:alignItems children:children];
 }
 
++ (instancetype)verticalStackLayoutSpec
+{
+  ASStackLayoutSpec *stackLayoutSpec = [[self alloc] init];
+  stackLayoutSpec.direction = ASStackLayoutDirectionVertical;
+  return stackLayoutSpec;
+}
+
++ (instancetype)horizontalStackLayoutSpec
+{
+  ASStackLayoutSpec *stackLayoutSpec = [[self alloc] init];
+  stackLayoutSpec.direction = ASStackLayoutDirectionHorizontal;
+  return stackLayoutSpec;
+}
+
 - (instancetype)initWithDirection:(ASStackLayoutDirection)direction spacing:(CGFloat)spacing justifyContent:(ASStackLayoutJustifyContent)justifyContent alignItems:(ASStackLayoutAlignItems)alignItems children:(NSArray *)children
 {
   if (!(self = [super init])) {