From 5a15eaebcad9fe95772d7391bb2cc5b1b2a8c0d2 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sun, 30 Aug 2026 14:17:09 +0100
Subject: Mark fields as readonly in typescript-types

---
 .../output/lang/typescript/TypescriptWriterTests.java     | 15 ++++++++++++++-
 .../ast/TypescriptClassFieldDeclarationMatcher.java       |  6 ++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

(limited to 'src/test/java')

diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriterTests.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriterTests.java
index 718f6e4..7ca267a 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriterTests.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriterTests.java
@@ -212,7 +212,7 @@ public class TypescriptWriterTests {
     }
 
     @Test
-    public void staticClassFieldDeclarationWithoutInitialValue() throws IOException {
+    public void staticClassFieldDeclaration() throws IOException {
         var typescript = TypescriptClassFieldDeclaration.arbitrary()
             .withVisibility(TypescriptVisibility.PUBLIC)
             .withName(id("a"))
@@ -224,6 +224,19 @@ public class TypescriptWriterTests {
         assertThat(string, equalTo("public static a;"));
     }
 
+    @Test
+    public void readOnlyClassFieldDeclaration() throws IOException {
+        var typescript = TypescriptClassFieldDeclaration.arbitrary()
+            .withVisibility(TypescriptVisibility.PUBLIC)
+            .withName(id("a"))
+            .withIsReadOnly(true)
+            .build();
+
+        var string = write(writer -> writer.writeClassElement(typescript));
+
+        assertThat(string, equalTo("public readonly a;"));
+    }
+
     @Test
     public void classFieldDeclarationWithExplicitType() throws IOException {
         var typescript = TypescriptClassFieldDeclaration.arbitrary()
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptClassFieldDeclarationMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptClassFieldDeclarationMatcher.java
index 62a3f9e..f4afcc8 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptClassFieldDeclarationMatcher.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptClassFieldDeclarationMatcher.java
@@ -48,6 +48,12 @@ public final class TypescriptClassFieldDeclarationMatcher implements org.zwobble
         return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassFieldDeclarationMatcher(submatchers);
     }
 
+    public org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassFieldDeclarationMatcher withIsReadOnly(org.zwobble.precisely.Matcher<? super java.lang.Boolean> isReadOnly) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassFieldDeclaration>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("isReadOnly", org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassFieldDeclaration::isReadOnly, (org.zwobble.precisely.Matcher) isReadOnly));
+        return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassFieldDeclarationMatcher(submatchers);
+    }
+
     public org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassFieldDeclarationMatcher withType(org.zwobble.precisely.Matcher<? super java.util.Optional<org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptExpression>> type) {
         var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassFieldDeclaration>>(this.submatchers);
         submatchers.add(org.zwobble.precisely.Matchers.has("type", org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassFieldDeclaration::type, (org.zwobble.precisely.Matcher) type));
-- 
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