Fixed the generated C# for comparison operators in templates.

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

src/Generator/Generators/CSharp/CSharpSources.cs

@@ -2392,14 +2392,15 @@ namespace CppSharp.Generators.CSharp
                 NewLine();
                 WriteLine("public override bool Equals(object obj)");
                 WriteStartBraceIndent();
+                var printedClass = @class.Visit(TypePrinter);
                 if (@class.IsRefType)
                 {
-                    WriteLine("return this == obj as {0};", @class.Name);
+                    WriteLine($"return this == obj as {printedClass};");
                 }
                 else
                 {
-                    WriteLine("if (!(obj is {0})) return false;", @class.Name);
+                    WriteLine($"if (!(obj is {printedClass})) return false;");
-                    WriteLine("return this == ({0}) obj;", @class.Name);
+                    WriteLine($"return this == ({printedClass}) obj;");
                 }
                 WriteCloseBraceIndent();
 
@@ -2408,20 +2409,21 @@ namespace CppSharp.Generators.CSharp
                 WriteLine("public override int GetHashCode()");
                 WriteStartBraceIndent();
                 if (@class.IsRefType)
-                {
+                    this.GenerateMember(@class, GenerateGetHashCode);
-                    WriteLine("if ({0} == global::System.IntPtr.Zero)", Helpers.InstanceIdentifier);
-                    WriteLineIndent("return global::System.IntPtr.Zero.GetHashCode();");
-                    WriteLine($@"return (*({TypePrinter.PrintNative(@class)}*) {
-                        Helpers.InstanceIdentifier}).GetHashCode();");
-                }
                 else
-                {
+                    WriteLine($"return {Helpers.InstanceIdentifier}.GetHashCode();");
-                    WriteLine("return {0}.GetHashCode();", Helpers.InstanceIdentifier);
-                }
                 WriteCloseBraceIndent();
             }
         }
 
+        private void GenerateGetHashCode(Class @class)
+        {
+            WriteLine($"if ({Helpers.InstanceIdentifier} == global::System.IntPtr.Zero)");
+            WriteLineIndent("return global::System.IntPtr.Zero.GetHashCode();");
+            WriteLine($@"return (*({TypePrinter.PrintNative(@class)}*) {
+                Helpers.InstanceIdentifier}).GetHashCode();");
+        }
+
         private void GenerateVirtualPropertyCall(Method method, Class @class,
             Property property, List<Parameter> parameters = null)
         {

tests/CSharp/CSharp.Tests.cs

@@ -764,6 +764,19 @@ public unsafe class CSharpTests : GeneratorTestFixture
         }
     }
 
+    [Test]
+    public void TestTemplateComparison()
+    {
+        using (var left = new HasDefaultTemplateArgument<int, int>())
+        using (var right = new HasDefaultTemplateArgument<int, int>())
+        {
+            left.Property = 15;
+            right.Property = 15;
+            Assert.IsTrue(left == right);
+            Assert.IsTrue(left.Equals(right));
+        }
+    }
+
     [Test]
     public void TestAbstractImplementatonsInPrimaryAndSecondaryBases()
     {

tests/CSharp/CSharpTemplates.h

@@ -132,6 +132,7 @@ public:
     void setProperty(const T& t);
     static T staticProperty();
     static void setStaticProperty(const T& t);
+    bool operator==(const HasDefaultTemplateArgument& other);
 private:
     T field;
     static T staticField;
@@ -214,6 +215,12 @@ void HasDefaultTemplateArgument<T, D>::setStaticProperty(const T& t)
     staticField = t;
 }
 
+template <typename T, typename D>
+bool HasDefaultTemplateArgument<T, D>::operator==(const HasDefaultTemplateArgument& other)
+{
+    return field == other.field;
+}
+
 template <typename T, typename D>
 T HasDefaultTemplateArgument<T, D>::staticField;