child function is now returning TreeNode

treedatastructure/build.gradle

@@ -15,7 +15,7 @@ android {
         minSdkVersion 15
         targetSdkVersion 29
         versionCode 1
-        versionName "1.2.2"
+        versionName "1.2.3"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         consumerProguardFiles 'consumer-rules.pro'

treedatastructure/src/main/java/com/github/adriankuta/datastructure/tree/ChildDeclarationInterface.kt

@@ -15,7 +15,8 @@ interface ChildDeclarationInterface<T> {
      *     }
      * }
      * ```
+     * @return New created TreeNode.
      */
     @JvmSynthetic
-    fun child(value: T, childDeclaration: ChildDeclaration<T>? = null)
+    fun child(value: T, childDeclaration: ChildDeclaration<T>? = null): TreeNode<T>
 }

treedatastructure/src/main/java/com/github/adriankuta/datastructure/tree/TreeNode.kt

@@ -27,11 +27,12 @@ open class TreeNode<T>(val value: T) : Iterable<TreeNode<T>>, ChildDeclarationIn
     }
 
     @JvmSynthetic
-    override fun child(value: T, childDeclaration: ChildDeclaration<T>?) {
+    override fun child(value: T, childDeclaration: ChildDeclaration<T>?): TreeNode<T> {
         val newChild = TreeNode(value)
         if(childDeclaration != null)
             newChild.childDeclaration()
         _children.add(newChild)
+        return newChild
     }
 
     /**

treedatastructure/src/test/java/com/github/adriankuta/datastructure/tree/TreeNodeTest.kt

@@ -139,20 +139,4 @@ class TreeNodeTest {
         }
         assertEquals(root.prettyString(), rootExt.prettyString())
     }
-
-//    @Test
-//    fun getVisibleNodes() {
-//        val root = tree("World") {
-//            child("Level 1") {
-//                child("Level 2") {
-//                    child("Level 3") {
-//                        child("Level 4")
-//                    }
-//                }
-//            }
-//        }
-//
-//        print(root.prettyString())
-//    }
-
 }