From 9052ed6da37af23ea82588d248f409e60a33c6cb Mon Sep 17 00:00:00 2001
From: Ben Culkin <scorpress@gmail.com>
Date: Sun, 12 Apr 2020 13:13:42 -0400
Subject: Finish up extraction

This applies the changes that were necessary to complete the extraction
of these packages from bjc-utils
---
 src/main/java/bjc/esodata/SingleTape.java |  5 +++++
 src/main/java/bjc/esodata/Tape.java       | 16 ++++++++++++++++
 2 files changed, 21 insertions(+)

(limited to 'src/main/java/bjc/esodata')

diff --git a/src/main/java/bjc/esodata/SingleTape.java b/src/main/java/bjc/esodata/SingleTape.java
index 28dca2a..c2957a6 100644
--- a/src/main/java/bjc/esodata/SingleTape.java
+++ b/src/main/java/bjc/esodata/SingleTape.java
@@ -180,6 +180,11 @@ public class SingleTape<T> implements Tape<T> {
 		return true;
 	}
 
+	@Override
+	public void append(T itm) {
+		backing.add(itm);
+	}
+	
 	@Override
 	public int hashCode() {
 		final int prime = 31;
diff --git a/src/main/java/bjc/esodata/Tape.java b/src/main/java/bjc/esodata/Tape.java
index 080e216..7d5fd9a 100644
--- a/src/main/java/bjc/esodata/Tape.java
+++ b/src/main/java/bjc/esodata/Tape.java
@@ -132,4 +132,20 @@ public interface Tape<T> {
 	default boolean atEnd() {
 		return position() == size();
 	}
+	
+	/**
+	 * Append an item to the tape.
+	 * 
+	 * By default, uses a fairly non-performant implementation. Should be overidden in subclasses to be more performant. 
+	 * @param itm The item to append.
+	 */
+	default void append(T itm) {
+		int pos = position();
+		
+		last();
+		
+		insertAfter(itm);
+		
+		seekTo(pos);
+	}
 }
-- 
cgit v1.2.3