move NodeView -> MutableMutliTrie.Node.View

Author: supersaiyansubtlety

enigma/src/main/java/org/quiltmc/enigma/util/multi_trie/CompositeStringMultiTrie.java

@@ -54,7 +54,7 @@ private static final class Root<V> extends MutableMapNode<Character, V, Branch<V
 
 		private final CompositeStringMultiTrie.Branch.Factory<V> branchFactory;
 
-		private final NodeView<Character, V> view = new NodeView<>(this);
+		private final View<Character, V> view = new View<>(this);
 
 		private Root(
 				Map<Character, CompositeStringMultiTrie.Branch<V>> branches, Collection<V> leaves,
@@ -95,7 +95,7 @@ public static final class Branch<V> extends MutableMapNode.Branch<Character, V,
 
 		private final CompositeStringMultiTrie.Branch.Factory<V> branchFactory;
 
-		private final MultiTrie.Node<Character, V> view = new NodeView<>(this);
+		private final MultiTrie.Node<Character, V> view = new View<>(this);
 
 		private Branch(
 				MutableMapNode<Character, V, CompositeStringMultiTrie.Branch<V>> parent, char key,

enigma/src/main/java/org/quiltmc/enigma/util/multi_trie/MutableMultiTrie.java

@@ -1,5 +1,8 @@
 package org.quiltmc.enigma.util.multi_trie;
 
+import javax.annotation.Nonnull;
+import java.util.stream.Stream;
+
 /**
  * A multi-trie that allows modification which can also provide unmodifiable views of its contents.
  *
@@ -48,5 +51,34 @@ interface Node<K, V> extends MultiTrie.Node<K, V> {
 		 * @return a live, unmodifiable view of this node
 		 */
 		MultiTrie.Node<K, V> getView();
+
+		class View<K, V> implements MultiTrie.Node<K, V> {
+			protected final Node<K, V> viewed;
+
+			protected View(Node<K, V> viewed) {
+				this.viewed = viewed;
+			}
+
+			@Override
+			public Stream<V> streamLeaves() {
+				return this.viewed.streamLeaves();
+			}
+
+			@Override
+			public Stream<V> streamStems() {
+				return this.viewed.streamStems();
+			}
+
+			@Override
+			public Stream<V> streamValues() {
+				return this.viewed.streamValues();
+			}
+
+			@Nonnull
+			@Override
+			public MultiTrie.Node<K, V> next(K key) {
+				return this.viewed.next(key).getView();
+			}
+		}
 	}
 }