From bd664e8cffcaf997631c9a8f5a5770d5a8bbe4d7 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 29 Aug 2026 22:19:10 +0100
Subject: Add class declarations to TypeScript AST

---
 .../output/lang/typescript/TypescriptWriter.java   | 27 ++++++++++++++++
 .../typescript/ast/TypescriptClassDeclaration.java | 36 ++++++++++++++++++++++
 .../lang/typescript/ast/TypescriptIdentifier.java  |  3 ++
 .../lang/typescript/ast/TypescriptStatement.java   | 18 +++++++++++
 4 files changed, 84 insertions(+)
 create mode 100644 src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptClassDeclaration.java
 create mode 100644 src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptStatement.java

(limited to 'src/main/java')

diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriter.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriter.java
index a031a82..c230705 100644
--- a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriter.java
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriter.java
@@ -1,7 +1,10 @@
 package org.zwobble.hobgoblin.compiler.output.lang.typescript;
 
 import org.zwobble.hobgoblin.compiler.output.CodeWriter;
+import org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration;
+import org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptIdentifier;
 import org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptModule;
+import org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptStatement;
 
 import java.io.IOException;
 import java.nio.file.Path;
@@ -45,4 +48,28 @@ public class TypescriptWriter implements AutoCloseable {
     public void writeModule(TypescriptModule module) throws IOException {
         this.writer.writeHeader();
     }
+
+    // == Statements ==
+
+    void writeStatement(TypescriptStatement statement) throws IOException {
+        switch (statement) {
+            case TypescriptClassDeclaration classDeclaration -> {
+                this.writeClassDeclaration(classDeclaration);
+            }
+        }
+    }
+
+    private void writeClassDeclaration(TypescriptClassDeclaration classDeclaration) throws IOException {
+        this.writer.write("class ");
+        this.writeIdentifier(classDeclaration.name());
+        this.writer.write(" {");
+        this.writer.newLine();
+        this.writer.write("}");
+    }
+
+    // == Identifiers ==
+
+    private void writeIdentifier(TypescriptIdentifier name) throws IOException {
+        this.writer.write(name.value());
+    }
 }
diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptClassDeclaration.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptClassDeclaration.java
new file mode 100644
index 0000000..a2e992c
--- /dev/null
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptClassDeclaration.java
@@ -0,0 +1,36 @@
+// Generated by hobgoblin.
+
+package org.zwobble.hobgoblin.compiler.output.lang.typescript.ast;
+
+// Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration imports
+
+public record TypescriptClassDeclaration(
+    org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptIdentifier name
+) implements org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptStatement {
+    public static org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration.Builder arbitrary() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration.Builder(org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptIdentifier.arbitrary().build());
+    }
+
+    public record Builder(
+        org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptIdentifier name
+    ) implements org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptStatement.Builder {
+        public org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration build() {
+            return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration(name);
+        }
+
+        public org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration.Builder withName(org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptIdentifier name) {
+            return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration.Builder(name);
+        }
+
+        public org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration.Builder withName(org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptIdentifier.Builder name) {
+            return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration.Builder(name.build());
+        }
+
+        // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration.Builder body
+        // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration.Builder body
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration body
+}
diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptIdentifier.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptIdentifier.java
index a87c792..f9b85e9 100644
--- a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptIdentifier.java
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptIdentifier.java
@@ -28,5 +28,8 @@ public record TypescriptIdentifier(
     }
 
     // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptIdentifier body
+    public static TypescriptIdentifier of(String value) {
+        return new TypescriptIdentifier(value);
+    }
     // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptIdentifier body
 }
diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptStatement.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptStatement.java
new file mode 100644
index 0000000..8bb978b
--- /dev/null
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptStatement.java
@@ -0,0 +1,18 @@
+// Generated by hobgoblin.
+
+package org.zwobble.hobgoblin.compiler.output.lang.typescript.ast;
+
+// Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptStatement imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptStatement imports
+
+public sealed interface TypescriptStatement permits org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptClassDeclaration {
+    public interface Builder {
+        public org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptStatement build();
+
+        // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptStatement.Builder body
+        // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptStatement.Builder body
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptStatement body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptStatement body
+}
-- 
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