Merge pull request #203 from ddobrev/master

Wrapped copy constructors

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/CLI/CLIHeadersTemplate.cs

@@ -374,6 +374,10 @@ namespace CppSharp.Generators.CLI
                 if (ASTUtils.CheckIgnoreMethod(ctor))
                     continue;
 
+                // C++/CLI does not allow special member funtions for value types.
+                if (@class.IsValueType && ctor.IsCopyConstructor)
+                    continue;
+
                 GenerateMethod(ctor);
             }
 

src/Generator/Generators/CLI/CLISourcesTemplate.cs

@@ -142,6 +142,10 @@ namespace CppSharp.Generators.CLI
                 if (ASTUtils.CheckIgnoreMethod(method))
                     continue;
 
+                // C++/CLI does not allow special member funtions for value types.
+                if (@class.IsValueType && method.IsCopyConstructor)
+                    continue;
+
                 GenerateMethod(method, @class);
             }
 

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.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);
         }

src/Generator/Passes/CheckStaticClass.cs

@@ -59,6 +59,14 @@ namespace CppSharp.Passes
             // If all the above constraints hold, then we assume the class can be
             // static.
             @class.IsStatic = true;
+
+            // Ignore the special methods for static classes.
+            foreach (var ctor in @class.Constructors)
+                ctor.IsGenerated = false;
+
+            foreach (var dtor in @class.Destructors)
+                dtor.IsGenerated = false;
+
             return true;
         }
     }

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));
+
+        var testCopyConstructorRef = new TestCopyConstructorRef { A = 10, B = 5 };
+        var copyBar = new TestCopyConstructorRef(testCopyConstructorRef);
+        Assert.That(testCopyConstructorRef.A, Is.EqualTo(copyBar.A));
+        Assert.That(testCopyConstructorRef.B, Is.EqualTo(copyBar.B));
+    }
 }
  

tests/Basic/Basic.cpp

@@ -217,3 +217,13 @@ Bar::Item operator |(Bar::Item left, Bar::Item right)
 {
     return left | right;
 }
+
+TestCopyConstructorRef::TestCopyConstructorRef()
+{
+}
+
+TestCopyConstructorRef::TestCopyConstructorRef(const TestCopyConstructorRef& other)
+{
+    A = other.A;
+    B = other.B;
+}

tests/Basic/Basic.h

@@ -278,3 +278,12 @@ class DependentTypeWithNestedIndependent
         long l;
     };
 };
+
+class DLL_API TestCopyConstructorRef
+{
+public:
+    TestCopyConstructorRef();
+    TestCopyConstructorRef(const TestCopyConstructorRef& other);
+    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;
@@ -107,4 +107,13 @@ public class CSharpTempTests : GeneratorTestFixture
         bar.ArrayOfPrimitivePointers = array;
         Assert.That(i, Is.EqualTo(*(int*) bar.ArrayOfPrimitivePointers[0]));
     }
+
+    [Test]
+    public void TestCopyConstructorValue()
+    {
+        var testCopyConstructorVal = new TestCopyConstructorVal { A = 10, B = 5 };
+        var copyBar = new TestCopyConstructorVal(testCopyConstructorVal);
+        Assert.That(testCopyConstructorVal.A, Is.EqualTo(copyBar.A));
+        Assert.That(testCopyConstructorVal.B, Is.EqualTo(copyBar.B));
+    }
 }

tests/CSharpTemp/CSharpTemp.cpp

@@ -191,3 +191,13 @@ void P::setIsBool(bool value)
 }
 
 int TestDestructors::Marker = 0;
+
+TestCopyConstructorVal::TestCopyConstructorVal()
+{
+}
+
+TestCopyConstructorVal::TestCopyConstructorVal(const TestCopyConstructorVal& other)
+{
+    A = other.A;
+    B = other.B;
+}

tests/CSharpTemp/CSharpTemp.cs

@@ -64,6 +64,11 @@ namespace CppSharp.Tests
             driver.TranslationUnitPasses.AddPass(new TestAttributesPass());
         }
 
+        public override void Preprocess(Driver driver, ASTContext ctx)
+        {
+            ctx.SetClassAsValueType("TestCopyConstructorVal");
+        }
+
         public override void Postprocess(Driver driver, ASTContext lib)
         {
             new CaseRenamePass(

tests/CSharpTemp/CSharpTemp.h

@@ -138,3 +138,12 @@ struct DLL_API TestDestructors
     TestDestructors() { Marker = 0xf00d; }
     ~TestDestructors() { Marker = 0xcafe; }
 };
+
+class DLL_API TestCopyConstructorVal
+{
+public:
+    TestCopyConstructorVal();
+    TestCopyConstructorVal(const TestCopyConstructorVal& other);
+    int A;
+    float B;
+};