yoga/YogaKit/Source/UIView+Yoga.m

/**
 * 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 "UIView+Yoga.h"
#import "YGLayout+Private.h"
#import <objc/runtime.h>

static const void *kYGYogaAssociatedKey = &kYGYogaAssociatedKey;

@implementation UIView (YogaKit)

- (YGLayout *)yoga
{
  YGLayout *yoga = objc_getAssociatedObject(self, kYGYogaAssociatedKey);
  if (!yoga) {
    yoga = [[YGLayout alloc] initWithView:self];
    objc_setAssociatedObject(self, kYGYogaAssociatedKey, yoga, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
  }

  return yoga;
}


@end