From 20f60d8b72a27655abef227d3a213946d61c2370 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Fri, 31 Jul 2026 11:11:18 +0100
Subject: Make all Java classes final

---
 .../hobgoblin/compiler/output/lang/java/JavaWriter.java      |  2 +-
 .../hobgoblin/compiler/output/lang/java/JavaWriterTests.java | 12 ++++++------
 2 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'src')

diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriter.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriter.java
index 7af7e01..6c7410e 100644
--- a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriter.java
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriter.java
@@ -88,7 +88,7 @@ public class JavaWriter implements AutoCloseable {
     private void writeClassDeclaration(JavaClassDeclaration classDeclaration) throws IOException {
         writeDocComment(classDeclaration.docComment());
 
-        this.writer.write("public class ");
+        this.writer.write("public final class ");
         this.writeIdentifier(classDeclaration.name());
         this.writer.write(" ");
 
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriterTests.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriterTests.java
index 9b16328..fe5fa81 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriterTests.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriterTests.java
@@ -37,7 +37,7 @@ public class JavaWriterTests {
             // Custom area start: com.example.shapes.Rectangle imports
             // Custom area end: com.example.shapes.Rectangle imports
 
-            public class Rectangle {
+            public final class Rectangle {
                 // Custom area start: com.example.shapes.Rectangle body
                 // Custom area end: com.example.shapes.Rectangle body
             }
@@ -61,7 +61,7 @@ public class JavaWriterTests {
         var string = write(writer -> writer.writeTypeDeclaration(java));
 
         assertThat(string, equalTo("""
-            public class Rectangle {
+            public final class Rectangle {
                 // Custom area start: Rectangle body
                 // Custom area end: Rectangle body
             }"""
@@ -85,7 +85,7 @@ public class JavaWriterTests {
         var string = write(writer -> writer.writeTypeDeclaration(java));
 
         assertThat(string, equalTo("""
-            public class Rectangle implements com.example.Shape {
+            public final class Rectangle implements com.example.Shape {
                 // Custom area start: Rectangle body
                 // Custom area end: Rectangle body
             }"""
@@ -107,7 +107,7 @@ public class JavaWriterTests {
         var string = write(writer -> writer.writeTypeDeclaration(java));
 
         assertThat(string, equalTo("""
-            public class Rectangle implements com.example.Shape, com.example.Drawable {
+            public final class Rectangle implements com.example.Shape, com.example.Drawable {
                 // Custom area start: Rectangle body
                 // Custom area end: Rectangle body
             }"""
@@ -141,7 +141,7 @@ public class JavaWriterTests {
         var string = write(writer -> writer.writeTypeDeclaration(java));
 
         assertThat(string, equalTo("""
-            public class Rectangle {
+            public final class Rectangle {
                 public void a() {
                 }
 
@@ -167,7 +167,7 @@ public class JavaWriterTests {
 
         assertThat(string, equalTo("""
             /// A 2D point.
-            public class Point {
+            public final class Point {
                 // Custom area start: Point body
                 // Custom area end: Point body
             }"""
-- 
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