Do not generate the destructor/finalizer pair if the destructor of the native class is protected.

Had to fix line endings (LF) in the CLI* files.

src/Generator/Generators/CLI/CLIHeadersTemplate.cs

@@ -382,20 +382,22 @@ namespace CppSharp.Generators.CLI
                 GenerateMethod(ctor);
             }
 
-            if (@class.IsRefType)
+            if (Options.GenerateFinalizers && @class.IsRefType)
+            {
+                var destructor = @class.Destructors
+                    .FirstOrDefault(d => d.Parameters.Count == 0 && d.Access == AccessSpecifier.Public);
+                if (destructor != null)
                 {
                     GenerateClassDestructor(@class);
                     GenerateClassFinalizer(@class);
                 }
+            }
 
             PopIndent();
         }
 
         private void GenerateClassDestructor(Class @class)
         {
-            if (!Options.GenerateFinalizers)
-                return;
-
             PushBlock(CLIBlockKind.Destructor);
             WriteLine("~{0}();", @class.Name);
             PopBlock(NewLineKind.BeforeNextBlock);
@@ -403,9 +405,6 @@ namespace CppSharp.Generators.CLI
 
         private void GenerateClassFinalizer(Class @class)
         {
-            if (!Options.GenerateFinalizers)
-                return;
-
             PushBlock(CLIBlockKind.Finalizer);
             WriteLine("!{0}();", @class.Name);
             PopBlock(NewLineKind.BeforeNextBlock);

src/Generator/Generators/CLI/CLISourcesTemplate.cs

@@ -205,12 +205,17 @@ namespace CppSharp.Generators.CLI
             GenerateClassConstructor(@class, isIntPtr: false);
             GenerateClassConstructor(@class, isIntPtr: true);
 
-            if (@class.IsRefType)
+            if (Options.GenerateFinalizers && @class.IsRefType)
+            {
+                var destructor = @class.Destructors
+                    .FirstOrDefault(d => d.Parameters.Count == 0 && d.Access == AccessSpecifier.Public);
+                if (destructor != null)
                 {
                     GenerateClassDestructor(@class);
                     GenerateClassFinalizer(@class);
                 }
             }
+        }
 
         private void GenerateClassProperties(Class @class, Class realOwner)
         {
@@ -229,9 +234,6 @@ namespace CppSharp.Generators.CLI
 
         private void GenerateClassDestructor(Class @class)
         {
-            if (!Options.GenerateFinalizers)
-                return;
-
             PushBlock(CLIBlockKind.Destructor);
 
             WriteLine("{0}::~{1}()", QualifiedIdentifier(@class), @class.Name);
@@ -247,9 +249,6 @@ namespace CppSharp.Generators.CLI
 
         private void GenerateClassFinalizer(Class @class)
         {
-            if (!Options.GenerateFinalizers)
-                return;
-
             PushBlock(CLIBlockKind.Finalizer);
 
             WriteLine("{0}::!{1}()", QualifiedIdentifier(@class), @class.Name);

tests/CLITemp/CLITemp.cs

@@ -11,6 +11,12 @@ namespace CppSharp.Tests
         {
         }
 
+        public override void Setup(Driver driver)
+        {
+            driver.Options.GenerateFinalizers = true;
+            base.Setup(driver);
+        }
+
         public override void Preprocess(Driver driver, ASTContext ctx)
         {
         }

tests/CLITemp/CLITemp.h

@@ -15,3 +15,12 @@ struct DLL_API Types
     typedef int AttributedFuncType(int, int) ATTR;
     AttributedFuncType AttributedSum;
 };
+
+// Tests code generator to not generate a destructor/finalizer pair
+// if the destructor of the C++ class is not public.
+class DLL_API TestProtectedDestructors
+{
+    ~TestProtectedDestructors();
+};
+
+TestProtectedDestructors::~TestProtectedDestructors() {}