From 47873c041b7c7c308379dfba65672b115f9bce63 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=B1=9F=E6=88=98?=
 <40414978+PatriceJiang@users.noreply.github.com>
Date: Wed, 3 Jun 2020 19:27:02 +0800
Subject: [PATCH 1/2] add release hook (#1690)

---
 spine-cpp/spine-cpp/include/spine/Extension.h | 7 +++++++
 spine-cpp/spine-cpp/src/spine/SpineObject.cpp | 1 +
 2 files changed, 8 insertions(+)

diff --git a/spine-cpp/spine-cpp/include/spine/Extension.h b/spine-cpp/spine-cpp/include/spine/Extension.h
index a64b0a61a..754a9d506 100644
--- a/spine-cpp/spine-cpp/include/spine/Extension.h
+++ b/spine-cpp/spine-cpp/include/spine/Extension.h
@@ -61,6 +61,11 @@ public:
 		getInstance()->_free((void *) ptr, file, line);
 	}
 
+	template<typename T>
+	static void beforeFree(T *ptr) {
+		getInstance()->_beforeFree((void *) ptr);
+	}
+	
 	static char *readFile(const String &path, int *length) {
 		return getInstance()->_readFile(path, length);
 	}
@@ -83,6 +88,8 @@ public:
 
 	virtual char *_readFile(const String &path, int *length) = 0;
 
+	virtual void _beforeFree(void *ptr) {}
+
 protected:
 	SpineExtension();
 
diff --git a/spine-cpp/spine-cpp/src/spine/SpineObject.cpp b/spine-cpp/spine-cpp/src/spine/SpineObject.cpp
index 34308f432..f432f1abf 100644
--- a/spine-cpp/spine-cpp/src/spine/SpineObject.cpp
+++ b/spine-cpp/spine-cpp/src/spine/SpineObject.cpp
@@ -63,4 +63,5 @@ void SpineObject::operator delete(void *p) {
 }
 
 SpineObject::~SpineObject() {
+	SpineExtension::beforeFree(this);
 }

From c55b20d4facdd3315cc3fae24246e5e686f2a8ed Mon Sep 17 00:00:00 2001
From: badlogic <badlogicgames@gmail.com>
Date: Wed, 3 Jun 2020 13:28:24 +0200
Subject: [PATCH 2/2] [cpp] Fix unused-as-error in new Extension::_beforeFree.

---
 spine-cpp/spine-cpp/include/spine/Extension.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spine-cpp/spine-cpp/include/spine/Extension.h b/spine-cpp/spine-cpp/include/spine/Extension.h
index 754a9d506..c417ef80f 100644
--- a/spine-cpp/spine-cpp/include/spine/Extension.h
+++ b/spine-cpp/spine-cpp/include/spine/Extension.h
@@ -88,7 +88,7 @@ public:
 
 	virtual char *_readFile(const String &path, int *length) = 0;
 
-	virtual void _beforeFree(void *ptr) {}
+	virtual void _beforeFree(void *ptr) { SP_UNUSED(ptr); }
 
 protected:
 	SpineExtension();