From 31edb1fcbd029c81d9340341115d4f35ea729ec3 Mon Sep 17 00:00:00 2001
From: William S Fulton <wsf@fultondesigns.co.uk>
Date: Tue, 18 Nov 2003 22:31:50 +0000
Subject: [PATCH] Contract assert macro added

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@5337 626c5289-ae23-0410-ae9c-e8d60b6d4f22
---
 Lib/java/javahead.swg | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Lib/java/javahead.swg b/Lib/java/javahead.swg
index 70ef1d62f..1a6d84759 100644
--- a/Lib/java/javahead.swg
+++ b/Lib/java/javahead.swg
@@ -88,4 +88,8 @@ void SWIG_JavaThrowException(JNIEnv *jenv, SWIG_JavaExceptionCodes code, const c
 }
 %insert(runtime) %{
 #endif
+
+/* Contract support */
+
+#define SWIG_contract_assert(nullreturn, expr, msg) if (!(expr)) {SWIG_JavaThrowException(jenv, SWIG_JavaIllegalArgumentException, msg); return nullreturn; } else
 %}