From 6eff1da1b9c09f2c4e12dfd247edf3d3d6061256 Mon Sep 17 00:00:00 2001
From: Ben Fry <fry@processing.org>
Date: Sat, 25 Apr 2015 03:08:25 -0400
Subject: [PATCH] add push() and pop() to String/Int/FloatList

---
 core/src/processing/data/FloatList.java  | 16 ++++++++++++++++
 core/src/processing/data/IntList.java    | 16 ++++++++++++++++
 core/src/processing/data/StringList.java | 16 ++++++++++++++++
 3 files changed, 48 insertions(+)

diff --git a/core/src/processing/data/FloatList.java b/core/src/processing/data/FloatList.java
index 625850a1e..bc39a3ae3 100644
--- a/core/src/processing/data/FloatList.java
+++ b/core/src/processing/data/FloatList.java
@@ -137,6 +137,22 @@ public class FloatList implements Iterable<Float> {
   }
 
 
+  /** Just an alias for append(), but matches pop() */
+  public void push(float value) {
+    append(value);
+  }
+
+
+  public float pop() {
+    if (count == 0) {
+      throw new RuntimeException("Can't call pop() on an empty list");
+    }
+    float value = get(count-1);
+    count--;
+    return value;
+  }
+
+
   /**
    * Remove an element from the specified index.
    *
diff --git a/core/src/processing/data/IntList.java b/core/src/processing/data/IntList.java
index c591d3ae8..e9a310361 100644
--- a/core/src/processing/data/IntList.java
+++ b/core/src/processing/data/IntList.java
@@ -157,6 +157,22 @@ public class IntList implements Iterable<Integer> {
   }
 
 
+  /** Just an alias for append(), but matches pop() */
+  public void push(int value) {
+    append(value);
+  }
+
+
+  public int pop() {
+    if (count == 0) {
+      throw new RuntimeException("Can't call pop() on an empty list");
+    }
+    int value = get(count-1);
+    count--;
+    return value;
+  }
+
+
   /**
    * Remove an element from the specified index
    *
diff --git a/core/src/processing/data/StringList.java b/core/src/processing/data/StringList.java
index 595affdcb..65d73ceb9 100644
--- a/core/src/processing/data/StringList.java
+++ b/core/src/processing/data/StringList.java
@@ -140,6 +140,22 @@ public class StringList implements Iterable<String> {
   }
 
 
+  /** Just an alias for append(), but matches pop() */
+  public void push(String value) {
+    append(value);
+  }
+
+
+  public String pop() {
+    if (count == 0) {
+      throw new RuntimeException("Can't call pop() on an empty list");
+    }
+    String value = get(count-1);
+    count--;
+    return value;
+  }
+
+
   /**
    * Remove an element from the specified index.
    *