Add this and field reference serialization to C# backend

2 files changed, 35 insertions, 7 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 e66d114..fd7f953 100644
--- a/src/main/java/org/zwobble/couscous/backends/csharp/CsharpSerializer.java
+++ b/src/main/java/org/zwobble/couscous/backends/csharp/CsharpSerializer.java
@@ -88,7 +88,7 @@ public class CsharpSerializer implements NodeVisitor {
 
     @Override
     public void visit(ThisReferenceNode reference) {
-        throw new UnsupportedOperationException();
+        writer.writeKeyword("this");
     }
 
     @Override
@@ -231,7 +231,14 @@ public class CsharpSerializer implements NodeVisitor {
 
     @Override
     public void visit(FieldDeclarationNode declaration) {
-        throw new UnsupportedOperationException();
+        writer.writeStatement(() -> {
+            writer.writeKeyword("internal");
+            writer.writeSpace();
+            writeTypeReference(declaration.getType());
+            writer.writeSpace();
+            writer.writeIdentifier(declaration.getName());
+            writer.writeSymbol(";");
+        });
     }
 
     @Override
@@ -251,17 +258,20 @@ public class CsharpSerializer implements NodeVisitor {
             writer.writeSpace();
             writer.writeIdentifier(classNode.getSimpleName());
             writer.startBlock();
-
-            for (MethodNode method : classNode.getMethods()) {
-                write(method);
-            }
-
+            writeAll(classNode.getFields());
+            writeAll(classNode.getMethods());
             writer.endBlock();
         });
 
         writer.endBlock();
     }
 
+    private void writeAll(List<? extends Node> nodes) {
+        for (Node method : nodes) {
+            write(method);
+        }
+    }
+
     private void writeTypeReference(TypeName value) {
         // TODO: process the nodes before serialization
         if (PRIMITIVES.containsKey(value)) {
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 95696c7..8c3162b 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
@@ -14,6 +14,7 @@ import static org.zwobble.couscous.ast.MethodCallNode.methodCall;
 import static org.zwobble.couscous.ast.MethodCallNode.staticMethodCall;
 import static org.zwobble.couscous.ast.ReturnNode.returns;
 import static org.zwobble.couscous.ast.TernaryConditionalNode.ternaryConditional;
+import static org.zwobble.couscous.ast.ThisReferenceNode.thisReference;
 import static org.zwobble.couscous.ast.VariableDeclaration.var;
 import static org.zwobble.couscous.ast.VariableReferenceNode.reference;
 import static org.zwobble.couscous.util.ExtraLists.list;
@@ -53,6 +54,12 @@ public class CsharpSerializerTests {
     }
 
     @Test
+    public void thisReferenceUsesThisKeyword() {
+        String output = serialize(thisReference(TypeName.of("X")));
+        assertEquals("this", output);
+    }
+
+    @Test
     public void ternaryConditionalWritesConditionAndBranches() {
         String output = serialize(ternaryConditional(literal(true), literal(1), literal(2)));
         assertEquals("true ? 1 : 2", output);
@@ -173,6 +180,17 @@ public class CsharpSerializerTests {
         assertEquals("namespace Couscous.com.example {\n    internal class Example {\n    }\n}\n", output);
     }
 
+    @Test
+    public void classWithFields() {
+        ClassNode classNode = ClassNode.builder("com.example.Example")
+            .field("x", TypeName.of("X"))
+            .build();
+
+        String output = serialize(classNode);
+
+        assertEquals("namespace Couscous.com.example {\n    internal class Example {\n        internal Couscous.X x;\n    }\n}\n", output);
+    }
+
     private String serialize(Node node) {
         return CsharpSerializer.serialize(node, "Couscous");
     }