Add raise methods for throwing c++ exceptions in C#, Java, D

The director c++ exceptions are thrown in a helper method instead of in
the director overloaded method. This circumvents compiler warnings about
throwing exceptions when the method has an exception specification or
noexcept. If the exception is thrown, abort will still be called!
In Java, the "director:noexcept" typemap can be used to do something
else. This typemap should be ported to the other languages too.

1 files changed, 4 insertions, 0 deletions

diff --git a/Lib/d/director.swg b/Lib/d/director.swg
index a7d9c7688..02da0e0ac 100644
--- a/Lib/d/director.swg
+++ b/Lib/d/director.swg
@@ -40,6 +40,10 @@ namespace Swig {
   public:
     DirectorPureVirtualException(const char *msg) : DirectorException(std::string("Attempted to invoke pure virtual method ") + msg) {
     }
+
+    static void raise(const char *msg) {
+      throw DirectorPureVirtualException(msg);
+    }
   };
 }