Support instanceof in C# backend

2 files changed, 10 insertions, 3 deletions

diff --git a/src/test/java/org/zwobble/couscous/tests/ValueObjectTests.java b/src/test/java/org/zwobble/couscous/tests/ValueObjectTests.java
index f6096f8..dbdd483 100644
--- a/src/test/java/org/zwobble/couscous/tests/ValueObjectTests.java
+++ b/src/test/java/org/zwobble/couscous/tests/ValueObjectTests.java
@@ -57,6 +57,7 @@ public class ValueObjectTests {
             {FormalArgumentNode.class},
             {FormalTypeParameterNode.class},
             {IfStatementNode.class},
+            {InstanceOfNode.class},
             {InstanceReceiver.class},
             {InterfaceNode.class},
             {LiteralNode.class},
diff --git a/src/test/java/org/zwobble/couscous/tests/backends/csharp/CsharpSerializerTests.java b/src/test/java/org/zwobble/couscous/tests/backends/csharp/CsharpSerializerTests.java
index fda3980..3cb723e 100644
--- a/src/test/java/org/zwobble/couscous/tests/backends/csharp/CsharpSerializerTests.java
+++ b/src/test/java/org/zwobble/couscous/tests/backends/csharp/CsharpSerializerTests.java
@@ -26,9 +26,7 @@ import static org.zwobble.couscous.ast.LocalVariableDeclarationNode.localVariabl
 import static org.zwobble.couscous.ast.MethodCallNode.methodCall;
 import static org.zwobble.couscous.ast.MethodCallNode.staticMethodCall;
 import static org.zwobble.couscous.ast.MethodSignature.signature;
-import static org.zwobble.couscous.ast.Operations.integerAdd;
-import static org.zwobble.couscous.ast.Operations.integerMultiply;
-import static org.zwobble.couscous.ast.Operations.not;
+import static org.zwobble.couscous.ast.Operations.*;
 import static org.zwobble.couscous.ast.ReturnNode.returns;
 import static org.zwobble.couscous.ast.TernaryConditionalNode.ternaryConditional;
 import static org.zwobble.couscous.ast.ThisReferenceNode.thisReference;
@@ -196,6 +194,14 @@ public class CsharpSerializerTests {
     }
 
     @Test
+    public void instanceOfIsWrittenUsingIsOperator() {
+        String output = serialize(instanceOf(
+            reference(var(TestIds.ANY_ID, "x", Types.OBJECT)),
+            ScalarType.of("X")));
+        assertEquals("x is X", output);
+    }
+
+    @Test
     public void infixOperationIsBracketedWhenNecessary() {
         assertEquals("1 + 2 * 3", serialize(integerAdd(literal(1), integerMultiply(literal(2), literal(3)))));
         assertEquals("(1 + 2) * 3", serialize(integerMultiply(integerAdd(literal(1), literal(2)), literal(3))));