[closes gh-20] Unrolled operator overloading.

source/#external/ILSpy

@@ -1 +1 @@
-Subproject commit 1e338e0fdc676a005522ae6a10adb627a6b94b11
+Subproject commit e4edcffab101aa0660e8fd83a5c7278c03924d6e

source/Server/Decompilation/AstBasedDecompiler.cs

@@ -25,6 +25,7 @@ namespace SharpLab.Server.Decompilation {
 
             var context = new DecompilerContext(module) {
                 Settings = {
+                    OperatorOverloading = false,
                     AnonymousMethods = false,
                     YieldReturn = false,
                     AsyncAwait = false,

source/Tests/DecompilationTests.cs

@@ -31,6 +31,8 @@ namespace SharpLab.Tests {
         [InlineData("Module.vb2vb")]
         // https://github.com/ashmind/SharpLab/issues/9
         [InlineData("Lambda.CallInArray.cs2cs")]
+        // https://github.com/ashmind/SharpLab/issues/20
+        [InlineData("Casts.ExplicitOperatorOnNull.cs2cs")]
         public async Task SlowUpdate_ReturnsExpectedDecompiledCode(string resourceName) {
             var data = TestData.FromResource(resourceName);
             var driver = await NewTestDriverAsync(data);

source/Tests/TestCode/Casts.ExplicitOperatorOnNull.cs2cs

@@ -0,0 +1,39 @@
+public class Foo {
+    public static explicit operator uint? (Foo foo) => 1;
+}
+
+public class Bar {
+    public void Baz() {
+        var x = (uint?)((Foo)null);
+    }
+}
+
+#=>
+
+using System;
+using System.Diagnostics;
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Security;
+using System.Security.Permissions;
+
+[assembly: AssemblyVersion("0.0.0.0")]
+[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
+[assembly: CompilationRelaxations(8)]
+[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
+[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
+[module: UnverifiableCode]
+public class Foo
+{
+    public static uint? op_Explicit(Foo foo)
+    {
+        return new uint?(1u);
+    }
+}
+public class Bar
+{
+    public void Baz()
+    {
+        /*uint?*/Foo.op_Explicit(null);
+    }
+}

source/Tests/Tests.csproj

@@ -26,6 +26,10 @@
     <None Remove="TestCode\Simple.vb2vb" />
   </ItemGroup>
 
+  <ItemGroup>
+    <EmbeddedResource Include="TestCode\Casts.ExplicitOperatorOnNull.cs2cs" />
+  </ItemGroup>
+
   <ItemGroup>
     <EmbeddedResource Include="TestCode\Ast\EmptyType.fs2ast" />
     <EmbeddedResource Include="TestCode\Ast\LiteralTokens.fs2ast" />