Wrapped copy constructors.

Signed-off-by: Dimitar Dobrev <dpldobrev@yahoo.com>

src/Generator/AST/Utils.cs

@@ -25,7 +25,7 @@ namespace CppSharp.AST
             if (@class != null && @class.IsValueType && isEmptyCtor)
                 return true;
 
-            if (method.IsCopyConstructor || method.IsMoveConstructor)
+            if (method.IsMoveConstructor)
                 return true;
 
             if (method.IsDestructor)

src/Generator/Generators/CSharp/CSharpTextTemplate.cs

@@ -2159,8 +2159,19 @@ namespace CppSharp.Generators.CSharp
             WriteLine("{0} = Marshal.AllocHGlobal({1});", Helpers.InstanceIdentifier,
                 @class.Layout.Size);
 
-            if (!method.IsDefaultConstructor || @class.HasNonTrivialDefaultConstructor)
-                GenerateInternalFunctionCall(method);
+            if (method.IsCopyConstructor)
+            {
+                if (@class.HasNonTrivialCopyConstructor)
+                    GenerateInternalFunctionCall(method);
+                else
+                    WriteLine("*(({0}.Internal*) __Instance) = *(({0}.Internal*) {1}.__Instance);",
+                        @class.Name, method.Parameters[0].Name);
+            }
+            else
+            {
+                if (!method.IsDefaultConstructor || @class.HasNonTrivialDefaultConstructor)
+                    GenerateInternalFunctionCall(method);
+            }
 
             GenerateVTableClassSetupCall(@class);
         }

tests/Basic/Basic.Tests.cs

@@ -193,5 +193,19 @@ public class BasicTests : GeneratorTestFixture
     public void TestChar16()
     {
     }
+
+    [Test]
+    public void TestCopyConstructor()
+    {
+        Foo foo = new Foo { A = 5, B = 5.5f };
+        var copyFoo = new Foo(foo);
+        Assert.That(foo.A, Is.EqualTo(copyFoo.A));
+        Assert.That(foo.B, Is.EqualTo(copyFoo.B));
+
+        Bar bar = new Bar { A = 10, B = 5 };
+        var copyBar = new Bar(bar);
+        Assert.That(bar.A, Is.EqualTo(copyBar.A));
+        Assert.That(bar.B, Is.EqualTo(copyBar.B));
+    }
 }
  

tests/Basic/Basic.cpp

@@ -27,6 +27,12 @@ Bar::Bar()
 {
 }
 
+Bar::Bar(const Bar& bar)
+{
+    A = bar.A;
+    B = bar.B;
+}
+
 Bar::Item Bar::RetItem1()
 {
     return Bar::Item1;

tests/Basic/Basic.h

@@ -28,6 +28,7 @@ struct DLL_API Bar
     };
 
     Bar();
+    Bar(const Bar& bar);
     Item RetItem1();
     int A;
     float B;

tests/CSharpTemp/CSharpTemp.Tests.cs

@@ -34,7 +34,7 @@ public class CSharpTempTests : GeneratorTestFixture
     [Test]
     public void TestFixedArrays()
     {
-        Qux qux = new Qux(null);
+        Qux qux = new Qux((Foo) null);
         var array = new[] { 1, 2, 3 };
         qux.Array = array;
         for (int i = 0; i < qux.Array.Length; i++)
@@ -64,7 +64,7 @@ public class CSharpTempTests : GeneratorTestFixture
         Assert.That(proprietor.Value, Is.EqualTo(20));
         proprietor.Prop = 50;
         Assert.That(proprietor.Prop, Is.EqualTo(50));
-        var p = new P(null);
+        var p = new P((IQux) null);
         p.Value = 20;
         Assert.That(p.Value, Is.EqualTo(30));
         p.Prop = 50;