text: //
  //  MASAttribute.h
  //  Masonry
  //
  //  Created by Jonas Budelmann on 21/07/13.
  //  Copyright (c) 2013 cloudling. All rights reserved.
  //
  
  #import "MASUtilities.h"
  
  /**
   *  An immutable tuple which stores the view and the related NSLayoutAttribute.
   *  Describes part of either the left or right hand side of a constraint equation
   */
  @interface MASViewAttribute : NSObject
  
  /**
   *  The view which the reciever relates to. Can be nil if item is not a view.
   */
  @property (nonatomic, weak, readonly) MAS_VIEW *view;
  
  /**
   *  The item which the reciever relates to.
   */
  @property (nonatomic, weak, readonly) id item;
  
  /**
   *  The attribute which the reciever relates to
   */
  @property (nonatomic, assign, readonly) NSLayoutAttribute layoutAttribute;
  
  /**
   *  Convenience initializer.
   */
  - (id)initWithView:(MAS_VIEW *)view layoutAttribute:(NSLayoutAttribute)layoutAttribute;
  
  /**
   *  The designated initializer.
   */
  - (id)initWithView:(MAS_VIEW *)view item:(id)item layoutAttribute:(NSLayoutAttribute)layoutAttribute;
  
  /**
   *	Determine whether the layoutAttribute is a size attribute
   *
   *	@return	YES if layoutAttribute is equal to NSLayoutAttributeWidth or NSLayoutAttributeHeight
   */
  - (BOOL)isSizeAttribute;
  
  @end
  