From 29c6eb562540bb3dc87fe01b6ac40d6ebbab2407 Mon Sep 17 00:00:00 2001
From: Dimitar Dobrev <dpldobrev@protonmail.com>
Date: Mon, 11 May 2020 00:56:28 +0300
Subject: [PATCH] Test overriding from a secondary base for Itanium

Fixes https://github.com/mono/CppSharp/issues/1364.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>
---
 tests/CSharp/CSharp.Tests.cs | 18 ++++++++++++++++++
 tests/CSharp/CSharp.cpp      | 23 +++++++++++++++++++++++
 tests/CSharp/CSharp.h        | 12 ++++++++++++
 3 files changed, 53 insertions(+)

diff --git a/tests/CSharp/CSharp.Tests.cs b/tests/CSharp/CSharp.Tests.cs
index 7bcee686..f2f0fc60 100644
--- a/tests/CSharp/CSharp.Tests.cs
+++ b/tests/CSharp/CSharp.Tests.cs
@@ -102,6 +102,24 @@ public unsafe class CSharpTests : GeneratorTestFixture
 #pragma warning restore 0219
     }
 
+    private class OverriddenInManaged : Baz
+    {
+        public override int Type => 10;
+    }
+
+    [Test]
+    public void TestDer()
+    {
+        using (var der = new OverriddenInManaged())
+        {
+            using (var hasDer = new HasOverriddenInManaged())
+            {
+                hasDer.SetOverriddenInManaged(der);
+                Assert.That(hasDer.CallOverriddenInManaged(), Is.EqualTo(10));
+            }
+        }
+    }
+
     [Test]
     public void TestReturnCharPointer()
     {
diff --git a/tests/CSharp/CSharp.cpp b/tests/CSharp/CSharp.cpp
index 024c9833..0e0cfe44 100644
--- a/tests/CSharp/CSharp.cpp
+++ b/tests/CSharp/CSharp.cpp
@@ -329,6 +329,11 @@ void Baz::setMethod(ProtectedNestedEnum value)
 {
 }
 
+int Baz::type() const
+{
+    return -1;
+}
+
 AbstractProprietor::~AbstractProprietor()
 {
 }
@@ -865,6 +870,24 @@ AbstractWithProperty::~AbstractWithProperty()
 {
 }
 
+HasOverriddenInManaged::HasOverriddenInManaged()
+{
+}
+
+HasOverriddenInManaged::~HasOverriddenInManaged()
+{
+}
+
+void HasOverriddenInManaged::setOverriddenInManaged(Baz* value)
+{
+    overriddenInManaged = value;
+}
+
+int HasOverriddenInManaged::callOverriddenInManaged()
+{
+    return overriddenInManaged->type();
+}
+
 IgnoredType PropertyWithIgnoredType::ignoredType()
 {
     return _ignoredType;
diff --git a/tests/CSharp/CSharp.h b/tests/CSharp/CSharp.h
index 500d8fcd..e57a704d 100644
--- a/tests/CSharp/CSharp.h
+++ b/tests/CSharp/CSharp.h
@@ -161,6 +161,7 @@ public:
     int takesQux(const Qux& qux);
     Qux returnQux();
     void setMethod(ProtectedNestedEnum value);
+    int type() const override;
 
     typedef bool (*FunctionTypedef)(const void *);
     FunctionTypedef functionTypedef;
@@ -537,6 +538,17 @@ class DLL_API IgnoredTypeInheritingNonIgnoredWithNoEmptyCtor : public P
 {
 };
 
+class DLL_API HasOverriddenInManaged
+{
+public:
+    HasOverriddenInManaged();
+    ~HasOverriddenInManaged();
+    void setOverriddenInManaged(Baz *value);
+    int callOverriddenInManaged();
+private:
+    Baz* overriddenInManaged = 0;
+};
+
 class DLL_API PropertyWithIgnoredType
 {
 public: