Fix regressed virtual read-only properties with setters in subclasses

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

Author: ddobrev

src/Generator/Passes/GetterSetterToPropertyPass.cs

@@ -143,27 +143,8 @@ private static void ProcessProperties(Class @class, HashSet<Property> newPropert
         {
             foreach (var property in newProperties)
             {
-                if (property.IsOverride)
-                {
-                    Property baseProperty = GetBaseProperty(@class, property);
-                    if (baseProperty == null)
-                    {
-                        if (property.SetMethod != null)
-                        {
-                            property.SetMethod.GenerationKind = GenerationKind.Generate;
-                            property.SetMethod = null;
-                        }
-                        else
-                        {
-                            property.GetMethod.GenerationKind = GenerationKind.Generate;
-                            property.GetMethod = null;
-                        }
-                    }
-                    else if (property.GetMethod == null && baseProperty.SetMethod != null)
-                        property.GetMethod = baseProperty.GetMethod;
-                    else if (property.SetMethod == null)
-                        property.SetMethod = baseProperty.SetMethod;
-                }
+                ProcessOverridden(@class, property);
+
                 if (property.GetMethod == null)
                 {
                     if (property.SetMethod != null)
@@ -185,14 +166,45 @@ private static void ProcessProperties(Class @class, HashSet<Property> newPropert
             }
         }
 
+        private static void ProcessOverridden(Class @class, Property property)
+        {
+            if (!property.IsOverride)
+                return;
+
+            Property baseProperty = GetBaseProperty(@class, property);
+            if (baseProperty == null)
+            {
+                if (property.SetMethod != null)
+                {
+                    property.SetMethod.GenerationKind = GenerationKind.Generate;
+                    property.SetMethod = null;
+                }
+                else
+                {
+                    property.GetMethod.GenerationKind = GenerationKind.Generate;
+                    property.GetMethod = null;
+                }
+            }
+            else if (property.GetMethod == null && baseProperty.SetMethod != null)
+                property.GetMethod = baseProperty.GetMethod;
+            else if (property.SetMethod == null || baseProperty.SetMethod == null)
+            {
+                if (property.SetMethod != null)
+                    property.SetMethod.GenerationKind = GenerationKind.Generate;
+                property.SetMethod = baseProperty.SetMethod;
+            }
+        }
+
         private static Property GetBaseProperty(Class @class, Property @override)
         {
             foreach (var @base in @class.Bases)
             {
                 Class baseClass = @base.Class.OriginalClass ?? @base.Class;
                 Property baseProperty = baseClass.Properties.Find(p =>
-                    (@override.GetMethod != null && @override.GetMethod.BaseMethod == p.GetMethod) ||
-                    (@override.SetMethod != null && @override.SetMethod.BaseMethod == p.SetMethod) ||
+                    (@override.GetMethod?.IsOverride == true &&
+                     @override.GetMethod.BaseMethod == p.GetMethod) ||
+                    (@override.SetMethod?.IsOverride == true &&
+                     @override.SetMethod.BaseMethod == p.SetMethod) ||
                     (@override.Field != null && @override.Field == p.Field));
                 if (baseProperty != null)
                     return baseProperty;

tests/Common/Common.Tests.cs

@@ -522,6 +522,13 @@ public void TestProperties()
 
             Assert.That(prop.Get32Bit, Is.EqualTo(10));
             Assert.That(prop.IsEmpty, Is.EqualTo(prop.Empty));
+
+            Assert.That(prop.VirtualGetter, Is.EqualTo(15));
+        }
+        using (var prop = new HasOverridenSetter())
+        {
+            Assert.That(prop.VirtualGetter, Is.EqualTo(20));
+            prop.SetVirtualGetter(5);
         }
     }
 

tests/Common/Common.cpp

@@ -628,6 +628,11 @@ bool TestProperties::empty()
     return false;
 }
 
+int TestProperties::virtualGetter()
+{
+    return 15;
+}
+
 HasOverridenSetter::HasOverridenSetter()
 {
 }
@@ -646,6 +651,15 @@ bool HasOverridenSetter::setVirtualSetterReturnsBoolean(int value)
     return TestProperties::setVirtualSetterReturnsBoolean(value);
 }
 
+int HasOverridenSetter::virtualGetter()
+{
+    return 20;
+}
+
+void HasOverridenSetter::setVirtualGetter(int value)
+{
+}
+
 TypeMappedIndex::TypeMappedIndex()
 {
 }

tests/Common/Common.h

@@ -614,6 +614,8 @@ struct DLL_API TestProperties
     int get32Bit();
     bool isEmpty();
     bool empty();
+
+    virtual int virtualGetter();
 private:
     int FieldValue;
     double _refToPrimitiveInSetter;
@@ -630,6 +632,9 @@ class DLL_API HasOverridenSetter : public TestProperties
 
     int virtualSetterReturnsBoolean() override;
     bool setVirtualSetterReturnsBoolean(int value) override;
+
+    int virtualGetter() override;
+    void setVirtualGetter(int value);
 };
 
 class DLL_API TypeMappedIndex