From db09ec599bf26d1b5c1dca50e5f85447ebf77c9b Mon Sep 17 00:00:00 2001
From: squid233 <60126026+squid233@users.noreply.github.com>
Date: Sun, 11 Jun 2023 14:55:14 +0800
Subject: [PATCH] 0.4.0

---
 changelog.txt                                          | 3 +++
 gradle.properties                                      | 2 +-
 src/main/java/org/overrun/binpacking/PackerRegion.java | 8 +++++---
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/changelog.txt b/changelog.txt
index 8666336..3429367 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,6 @@
+0.4.0
+Changed: PackerRegion::ifFitPresent now requires an exact type
+
 0.3.0
 Added: PackerRegion now provides a default implementation of ::equals, ::hashCode and ::toString
 
diff --git a/gradle.properties b/gradle.properties
index 81fd948..5b7d008 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -4,7 +4,7 @@ org.gradle.jvmargs=-Dfile.encoding=UTF-8
 projGroupId=io.github.over-run
 projArtifactId=bin-packing
 projName=bin-packing
-projVersion=0.3.0
+projVersion=0.4.0
 projDesc=The Java port of jakesgordon/bin-packing.
 projVcs=Over-Run/bin-packing
 projBranch=0.x
diff --git a/src/main/java/org/overrun/binpacking/PackerRegion.java b/src/main/java/org/overrun/binpacking/PackerRegion.java
index 1731f13..20b4aed 100644
--- a/src/main/java/org/overrun/binpacking/PackerRegion.java
+++ b/src/main/java/org/overrun/binpacking/PackerRegion.java
@@ -51,7 +51,7 @@ static PackerRegion<Object> sized(int width, int height) {
      * @param size the size of the region.
      * @return the region.
      */
-    static PackerRegion<Object> delegate(PackerRegionSize size) {
+    static PackerRegion<?> delegate(PackerRegionSize size) {
         return delegate(size, null);
     }
 
@@ -85,9 +85,11 @@ static <T> PackerRegion<T> delegate(PackerRegionSize size, T userdata) {
      * Performs the given action if {@link #fit() fit} position is present.
      *
      * @param consumer the action to be performed.
+     * @param <R>      the type of this region.
      */
-    default void ifFitPresent(BiConsumer<PackerRegion<T>, PackerFitPos> consumer) {
-        fit().ifPresent(fit -> consumer.accept(this, fit));
+    @SuppressWarnings("unchecked")
+    default <R extends PackerRegion<T>> void ifFitPresent(BiConsumer<R, PackerFitPos> consumer) {
+        fit().ifPresent(fit -> consumer.accept((R) this, fit));
     }
 
     /**