fix(MerkleNode): Links are a sequence of DagLink

Author: richardschneider

src/MerkleNode.cs

@@ -23,7 +23,7 @@ public class MerkleNode
         long linksSize;
         long linksCount;
         string name;
-        MerkleNode[] links;
+        IEnumerable<DagLink> links;
         IpfsClient ipfsClient;
 
         /// <summary>
@@ -46,6 +46,17 @@ public MerkleNode(string hash, string name = null)
             Name = name;
         }
 
+        /// <summary>
+        ///   Creates a new instance of the <see cref="MerkleNode"/> from the
+        ///   <see cref="DagLink"/>.
+        /// </summary>
+        /// <param name="link">The link to a node.</param>
+        public MerkleNode(DagLink link)
+        {
+            Hash = link.Hash;
+            Name = link.Name;
+        }
+
         internal IpfsClient IpfsClient
         {
             get
@@ -117,22 +128,13 @@ public long LinksCount
         /// <summary>
         ///  TODO
         /// </summary>
-        public IEnumerable<MerkleNode> Links
+        public IEnumerable<DagLink> Links
         {
             get
             {
                 if (links == null)
                 {
-                    if (linksCount == 0)
-                    {
-                        links = new MerkleNode[0];
-                    }
-                    else
-                    {
-                        var result = IpfsClient.DoCommand<dynamic>("object/links", Hash);
-                        links = ((JArray)result.Links)
-                            .Select(l => new MerkleNode((string)l["Hash"], (string)l["Name"])).ToArray();
-                    }
+                    links = IpfsClient.Object.LinksAsync(Hash).Result;
                 }
 
                 return links;
@@ -198,6 +200,8 @@ void GetObjectStats()
             dataSize = stats.DataSize;
             linksSize = stats.LinksSize;
             linksCount = stats.NumLinks;
+            if (linksCount == 0)
+                links = new DagLink[0];
 
             hasObjectStats = true;
             hasBlockStats = true;

test/MerkleNodeTest.cs

@@ -31,6 +31,16 @@ public void Links_and_LinksCount()
             Assert.AreEqual(6, node.Links.Count());
         }
 
+        [TestMethod]
+        public void FromALink()
+        {
+            var node = new MerkleNode(IpfsInfo);
+            var link = new MerkleNode(node.Links.First());
+            Assert.AreEqual(link.Hash, node.Links.First().Hash);
+            Assert.AreEqual(link.Name, node.Links.First().Name);
+            Assert.AreEqual(link.BlockSize, node.Links.First().Size);
+        }
+
         [TestMethod]
         public void Value_Equality()
         {