Ignored enum fixes.

C#/Java - Enums which have been ignored via %ignore and are subsequently
used are handled slightly differently. Type wrapper classes are now generated
which are effectively a wrapper of an empty enum. Previously in Java uncompilable
code was generated and in C# an int was used.

CHANGES.current

@@ -5,6 +5,12 @@ See the RELEASENOTES file for a summary of changes in each release.
 Version 3.0.1 (in progress)
 ===========================
 
+2014-04-08: wsfulton
+            [Java C#] Enums which have been ignored via %ignore and are subsequently
+            used are handled slightly differently. Type wrapper classes are now generated
+            which are effectively a wrapper of an empty enum. Previously in Java uncompilable
+            code was generated and in C# an int was used.
+
 2014-04-04: wsfulton
             Fix regression in 3.0.0 where legal code following an operator<< definition might
             give a syntax error. SF Bug #1365.

Examples/test-suite/common.mk

@@ -197,6 +197,7 @@ CPP_TEST_CASES += \
 	disown \
 	dynamic_cast \
 	empty \
+	enum_ignore \
 	enum_plus \
 	enum_rename \
 	enum_scope_template \

Examples/test-suite/enum_ignore.i

@@ -0,0 +1,20 @@
+%module enum_ignore
+
+// Similar to enum_missing C test, but with namespaces and using %ignore
+
+%ignore N::C;
+
+%inline %{
+  namespace N {
+    enum C { Red, Green, Blue };
+
+    struct Draw {
+      void DrawBW() {}
+      void DrawC(C c) {}
+      void DrawC_Ptr(C* c) {}
+      void DrawC_ConstRef(C const& c) {}
+    };
+  }
+%}
+
+

Source/Modules/csharp.cxx

@@ -3175,8 +3175,8 @@ public:
 	if (anonymous_enum) {
 	  replacementname = NewString("int");
 	} else {
-	  // An unknown enum - one that has not been parsed (neither a C enum forward reference nor a definition)
-	  replacementname = SwigType_base(classnametype);
+	  // An unknown enum - one that has not been parsed (neither a C enum forward reference nor a definition) or an ignored enum
+	  replacementname = NewStringf("SWIGTYPE%s", SwigType_manglestr(classnametype));
 	  Replace(replacementname, "enum ", "", DOH_REPLACE_ANY);
 	  Setattr(swig_types_hash, replacementname, classnametype);
 	}

Source/Modules/go.cxx

@@ -4514,10 +4514,12 @@ private:
       } else if (Strcmp(t, "enum ") == 0) {
 	ret = NewString("int");
       } else {
-	// An unknown enum - one that has not been parsed (neither a C enum forward reference nor a definition)
-	ret = SwigType_base(t);
-	Replace(ret, "enum ", "", DOH_REPLACE_ANY);
+	// An unknown enum - one that has not been parsed (neither a C enum forward reference nor a definition) or an ignored enum
+	String *tt = Copy(t);
+	Replace(tt, "enum ", "", DOH_REPLACE_ANY);
+	ret = exportedName(tt);
 	Setattr(undefined_enum_types, t, ret);
+	Delete(tt);
       }
     } else if (SwigType_isfunctionpointer(type) || SwigType_isfunction(type)) {
       ret = NewString("_swig_fnptr");

Source/Modules/java.cxx

@@ -3090,8 +3090,8 @@ public:
 	if (anonymous_enum) {
 	  replacementname = NewString("int");
 	} else {
-	  // An unknown enum - one that has not been parsed (neither a C enum forward reference nor a definition)
-	  replacementname = SwigType_base(classnametype);
+	  // An unknown enum - one that has not been parsed (neither a C enum forward reference nor a definition) or an ignored enum
+	  replacementname = NewStringf("SWIGTYPE%s", SwigType_manglestr(classnametype));
 	  Replace(replacementname, "enum ", "", DOH_REPLACE_ANY);
 	  Setattr(swig_types_hash, replacementname, classnametype);
 	}