Add expression statement serialisation to C# backend

2 files changed, 11 insertions, 1 deletions

diff --git a/src/main/java/org/zwobble/couscous/backends/csharp/CsharpSerializer.java b/src/main/java/org/zwobble/couscous/backends/csharp/CsharpSerializer.java
index fd7f953..c9df2ac 100644
--- a/src/main/java/org/zwobble/couscous/backends/csharp/CsharpSerializer.java
+++ b/src/main/java/org/zwobble/couscous/backends/csharp/CsharpSerializer.java
@@ -168,7 +168,10 @@ public class CsharpSerializer implements NodeVisitor {
 
     @Override
     public void visit(ExpressionStatementNode expressionStatement) {
-        throw new UnsupportedOperationException();
+        writer.writeStatement(() -> {
+            write(expressionStatement.getExpression());
+            writer.writeSymbol(";");
+        });
     }
 
     @Override
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 8c3162b..2986234 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
@@ -7,6 +7,7 @@ import org.zwobble.couscous.tests.TestIds;
 
 import static org.junit.Assert.assertEquals;
 import static org.zwobble.couscous.ast.ConstructorCallNode.constructorCall;
+import static org.zwobble.couscous.ast.ExpressionStatementNode.expressionStatement;
 import static org.zwobble.couscous.ast.FieldAccessNode.fieldAccess;
 import static org.zwobble.couscous.ast.FormalArgumentNode.formalArg;
 import static org.zwobble.couscous.ast.LiteralNode.literal;
@@ -127,6 +128,12 @@ public class CsharpSerializerTests {
     }
 
     @Test
+    public void expressionStatementWritesExpression() {
+        String output = serialize(expressionStatement(literal(true)));
+        assertEquals("true;\n", output);
+    }
+
+    @Test
     public void methodHasDynamicReturnType() {
         String output = serialize(MethodNode.staticMethod("nothing").build());
         assertEquals("internal static void nothing() {\n}\n", output);