Fix assertion for some languages when wrapping a C++11 enum class that is private in a class.

Also don't wrap private enums for a few languages that attempted to do so.

Closes #594.

CHANGES.current

@@ -6,7 +6,13 @@ Version 3.0.9 (in progress)
 ===========================
 
 2016-03-31: wsfulton
-	    [Java] unsigned long long marshalling improvements when a negative number
+            Fixes #594. Fix assertion for some languages when wrapping a C++11 enum class that
+            is private in a class.
+
+            Also don't wrap private enums for a few languages that attempted to do so.
+
+2016-03-31: wsfulton
+            [Java] unsigned long long marshalling improvements when a negative number
             is passed from Java to C. A cast to signed long long in the C layer will now
             result in the expected value. No change for positive numbers passed to C.
             Fixes #623.

Examples/test-suite/cpp11_strongly_typed_enumerations.i

@@ -214,5 +214,12 @@ Enum1 globalTest1(Enum1 e) { return e; }
 Class1::Enum12 globalTest2(Class1::Enum12 e) { return e; }
 Class1::Struct1::Enum12 globalTest3(Class1::Struct1::Enum12 e) { return e; }
 
+class PrivateEnumClass {
+private:
+  enum class Enum {
+    PrivateEnum1,
+    PrivateEnum2
+  };
+};
 %}
 

Source/Modules/allegrocl.cxx

@@ -3166,6 +3166,9 @@ int ALLEGROCL::enumDeclaration(Node *n) {
   Printf(stderr, "enumDeclaration %s\n", Getattr(n, "name"));
 #endif
 
+  if (getCurrentClass() && (cplus_mode != PUBLIC))
+    return SWIG_NOWRAP;
+
   if (Getattr(n, "sym:name")) {
     add_defined_foreign_type(n);
   }

Source/Modules/cffi.cxx

@@ -688,6 +688,9 @@ int CFFI::typedefHandler(Node *n) {
 }
 
 int CFFI::enumDeclaration(Node *n) {
+  if (getCurrentClass() && (cplus_mode != PUBLIC))
+    return SWIG_NOWRAP;
+
   String *name = Getattr(n, "sym:name");
   bool slot_name_keywords;
   String *lisp_name = 0;

Source/Modules/clisp.cxx

@@ -242,6 +242,9 @@ int CLISP::typedefHandler(Node *n) {
 }
 
 int CLISP::enumDeclaration(Node *n) {
+  if (getCurrentClass() && (cplus_mode != PUBLIC))
+    return SWIG_NOWRAP;
+
   is_function = 0;
   String *name = Getattr(n, "sym:name");
 

Source/Modules/go.cxx

@@ -2712,6 +2712,9 @@ private:
    * ---------------------------------------------------------------------- */
 
   virtual int enumDeclaration(Node *n) {
+    if (getCurrentClass() && (cplus_mode != PUBLIC))
+      return SWIG_NOWRAP;
+
     String *name = goEnumName(n);
     if (Strcmp(name, "int") != 0) {
       if (!ImportMode || !imported_package) {

Source/Modules/lang.cxx

@@ -1649,6 +1649,9 @@ int Language::externDeclaration(Node *n) {
  * ---------------------------------------------------------------------- */
 
 int Language::enumDeclaration(Node *n) {
+  if (CurrentClass && (cplus_mode != PUBLIC))
+    return SWIG_NOWRAP;
+
   String *oldNSpace = NSpace;
   NSpace = Getattr(n, "sym:nspace");
 

Source/Modules/lua.cxx

@@ -1157,6 +1157,9 @@ public:
    * ------------------------------------------------------------ */
 
   virtual int enumDeclaration(Node *n) {
+    if (getCurrentClass() && (cplus_mode != PUBLIC))
+      return SWIG_NOWRAP;
+
     current[STATIC_CONST] = true;
     current[ENUM_CONST] = true;
     // There is some slightly specific behaviour with enums. Basically,

Source/Modules/ocaml.cxx

@@ -1287,6 +1287,9 @@ public:
    * typedef enum and enum are handled.  I need to produce consistent names,
    * which means looking up and registering by typedef and enum name. */
   int enumDeclaration(Node *n) {
+    if (getCurrentClass() && (cplus_mode != PUBLIC))
+      return SWIG_NOWRAP;
+
     String *name = Getattr(n, "name");
     if (name) {
       String *oname = NewString(name);

Source/Modules/r.cxx

@@ -1179,6 +1179,9 @@ int R::OutputArrayMethod(String *className, List *el, File *out) {
  tdname is the typedef of the enumeration, i.e. giving its name.
 *************************************************************/
 int R::enumDeclaration(Node *n) {
+  if (getCurrentClass() && (cplus_mode != PUBLIC))
+    return SWIG_NOWRAP;
+
   String *name = Getattr(n, "name");
   String *tdname = Getattr(n, "tdname");