diff --git a/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java b/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java
index 1852765c617..93e0df63f92 100644
--- a/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java
+++ b/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java
@@ -461,12 +461,16 @@ public class ExpressionCodegen extends JetVisitor {
                             methodDescriptor.getDescriptor());
                 }
                 else {
+                    methodDescriptor = typeMapper.mapSignature((JetFunction) declarationPsiElement);
+                    pushMethodArguments(expression, methodDescriptor);
                     if (functionParent instanceof NamespaceDescriptor && declarationPsiElement instanceof JetFunction) {
-                        methodDescriptor = typeMapper.mapSignature((JetFunction) declarationPsiElement);
-                        pushMethodArguments(expression, methodDescriptor);
                         final String owner = NamespaceCodegen.getJVMClassName(DescriptorUtil.getFQName(functionParent));
                         v.invokestatic(owner, methodDescriptor.getName(), methodDescriptor.getDescriptor());
                     }
+                    else if (functionParent instanceof ClassDescriptor && declarationPsiElement instanceof JetFunction) {
+                        final String owner = JetTypeMapper.jvmNameForInterface((ClassDescriptor) functionParent);
+                        v.invokeinterface(owner, methodDescriptor.getName(), methodDescriptor.getDescriptor());
+                    }
                     else {
                         throw new UnsupportedOperationException("don't know how to generate call to " + declarationPsiElement);
                     }
@@ -965,16 +969,29 @@ public class ExpressionCodegen extends JetVisitor {
     public void visitNewExpression(JetNewExpression expression) {
         final JetUserType constructorType = (JetUserType) expression.getTypeReference().getTypeElement();
         final JetSimpleNameExpression constructorReference = constructorType.getReferenceExpression();
-        final PsiElement declaration = bindingContext.getDeclarationPsiElement(bindingContext.resolveReferenceExpression(constructorReference));
+        DeclarationDescriptor constructorDescriptor = bindingContext.resolveReferenceExpression(constructorReference);
+        final PsiElement declaration = bindingContext.getDeclarationPsiElement(constructorDescriptor);
         if (declaration instanceof PsiMethod) {
             final PsiMethod constructor = (PsiMethod) declaration;
             PsiClass javaClass = constructor.getContainingClass();
             Type type = JetTypeMapper.psiClassType(javaClass);
             v.anew(type);
             v.dup();
-            final Method constructorDescriptor = getMethodDescriptor(constructor);
-            pushMethodArguments(expression, constructorDescriptor);
-            v.invokespecial(JetTypeMapper.jvmName(javaClass), "<init>", constructorDescriptor.getDescriptor());
+            final Method jvmConstructor = getMethodDescriptor(constructor);
+            pushMethodArguments(expression, jvmConstructor);
+            v.invokespecial(JetTypeMapper.jvmName(javaClass), "<init>", jvmConstructor.getDescriptor());
+            myStack.push(StackValue.onStack(type));
+            return;
+        }
+        else if (constructorDescriptor instanceof ConstructorDescriptor) {
+            ClassDescriptor classDecl = (ClassDescriptor) constructorDescriptor.getContainingDeclaration();
+            Type type = JetTypeMapper.jetImplementationType(classDecl);
+            v.anew(type);
+            v.dup();
+
+            Method method = typeMapper.mapConstructorSignature((ConstructorDescriptor) constructorDescriptor);
+            pushMethodArguments(expression, method);
+            v.invokespecial(JetTypeMapper.jvmNameForImplementation(classDecl), "<init>", method.getDescriptor());
             myStack.push(StackValue.onStack(type));
             return;
         }
diff --git a/idea/src/org/jetbrains/jet/codegen/JetTypeMapper.java b/idea/src/org/jetbrains/jet/codegen/JetTypeMapper.java
index dfd45a72987..f97d8919a4f 100644
--- a/idea/src/org/jetbrains/jet/codegen/JetTypeMapper.java
+++ b/idea/src/org/jetbrains/jet/codegen/JetTypeMapper.java
@@ -35,6 +35,14 @@ public class JetTypeMapper {
         return Type.getType("L" + jvmName(psiClass) + ";");
     }
 
+    static Type jetInterfaceType(ClassDescriptor classDescriptor) {
+        return Type.getType("L" + jvmNameForInterface(classDescriptor) + ";");
+    }
+
+    static Type jetImplementationType(ClassDescriptor classDescriptor) {
+        return Type.getType("L" + jvmNameForImplementation(classDescriptor) + ";");
+    }
+
     static String jvmName(JetNamespace namespace) {
         return NamespaceCodegen.getJVMClassName(namespace.getFQName());
     }
@@ -179,6 +187,16 @@ public class JetTypeMapper {
         return new Method(PropertyCodegen.setterName(descriptor.getName()), Type.VOID_TYPE, new Type[] { paramType });
     }
 
+    public Method mapConstructorSignature(ConstructorDescriptor descriptor) {
+        List<ValueParameterDescriptor> parameters = descriptor.getUnsubstitutedValueParameters();
+        Type[] parameterTypes = new Type[parameters.size()];
+        for (int i = 0; i < parameters.size(); i++) {
+            parameterTypes[i] = mapType(parameters.get(i).getOutType());
+        }
+        Type returnType = mapType(descriptor.getUnsubstitutedReturnType());
+        return new Method("<init>", Type.VOID_TYPE, parameterTypes);
+    }
+
     static int getAccessModifiers(JetDeclaration p, int defaultFlags) {
         int flags = 0;
         if (p.hasModifier(JetTokens.PUBLIC_KEYWORD)) {