hashcode

src/main/java/util/ast/AST.java

@@ -1,5 +1,7 @@
 package util.ast;
 
+import java.util.Objects;
+
 public class AST {
 
     private final Node root;
@@ -25,4 +27,9 @@ public class AST {
     public String toString() {
         return this.root.toString();
     }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.root);
+    }
 }

src/main/java/util/ast/Node.java

@@ -3,6 +3,7 @@ package util.ast;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Objects;
 
 public class Node {
 
@@ -15,11 +16,6 @@ public class Node {
         this.value = "";
     }
 
-    public Node(String name, String value) {
-        this.name = name;
-        this.value = value;
-    }
-
     public void addChild(Node node) {
         this.children.add(node);
     }
@@ -28,6 +24,10 @@ public class Node {
         return !this.children.isEmpty();
     }
 
+    public List<Node> getChildren() {
+        return this.children;
+    }
+
     public String getName() {
         return this.name;
     }
@@ -77,4 +77,9 @@ public class Node {
             }
         }
     }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.name, this.value, this.children); // TODO: children?
+    }
 }