From 2b887718befc50679896368ae6852335ffff49a6 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 29 Aug 2026 10:15:00 +0100
Subject: Add stubbed TypeScript code writer

---
 .../lang/typescript/TypescriptWriterTests.java     | 46 ++++++++++++++++++++++
 .../typescript/ast/TypescriptModuleMatcher.java    | 35 ++++++++++++++++
 2 files changed, 81 insertions(+)
 create mode 100644 src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriterTests.java
 create mode 100644 src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptModuleMatcher.java

(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
new file mode 100644
index 0000000..8712b4a
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/TypescriptWriterTests.java
@@ -0,0 +1,46 @@
+package org.zwobble.hobgoblin.compiler.output.lang.typescript;
+
+import org.junit.jupiter.api.Test;
+import org.zwobble.hobgoblin.compiler.output.CodeWriter;
+import org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptModule;
+
+import java.io.IOException;
+import java.io.StringWriter;
+import java.util.Optional;
+
+import static org.zwobble.precisely.AssertThat.assertThat;
+import static org.zwobble.precisely.Matchers.equalTo;
+
+public class TypescriptWriterTests {
+    // == Modules ==
+
+    @Test
+    public void emptyModule() throws IOException {
+        var typescript = new TypescriptModule();
+
+        var string = write(writer -> writer.writeModule(typescript));
+
+        assertThat(string, equalTo("""
+            // Generated by hobgoblin.
+
+            """
+        ));
+    }
+
+    private String write(TypescriptWriter.Write write) throws IOException {
+        return write(write, Optional.empty());
+    }
+
+    private String write(TypescriptWriter.Write write, String originalContents) throws IOException {
+        return write(write, Optional.of(originalContents));
+    }
+
+    private String write(TypescriptWriter.Write write, Optional<String> originalContents) throws IOException {
+        var stringWriter = new StringWriter();
+        TypescriptWriter.writeTo(
+            new CodeWriter.InMemoryCodeWriterFile(originalContents, stringWriter),
+            write
+        );
+        return stringWriter.toString();
+    }
+}
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptModuleMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptModuleMatcher.java
new file mode 100644
index 0000000..088dba0
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/typescript/ast/TypescriptModuleMatcher.java
@@ -0,0 +1,35 @@
+// Generated by hobgoblin.
+
+package org.zwobble.hobgoblin.compiler.output.lang.typescript.ast;
+
+// Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptModuleMatcher imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptModuleMatcher imports
+
+public final class TypescriptModuleMatcher implements org.zwobble.precisely.Matcher<java.lang.Object> {
+    public static org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptModuleMatcher isTypescriptModule() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptModuleMatcher(java.util.List.of());
+    }
+
+    private final java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptModule>> submatchers;
+
+    private TypescriptModuleMatcher(
+        java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptModule>> submatchers
+    ) {
+        this.submatchers = submatchers;
+    }
+
+    public org.zwobble.precisely.MatchResult match(java.lang.Object actual) {
+        return this.toMatcher().match(actual);
+    }
+
+    public org.zwobble.precisely.TextTree describe() {
+        return this.toMatcher().describe();
+    }
+
+    private org.zwobble.precisely.Matcher<java.lang.Object> toMatcher() {
+        return org.zwobble.precisely.Matchers.instanceOf(org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptModule.class, this.submatchers);
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptModuleMatcher body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.typescript.ast.TypescriptModuleMatcher body
+}
-- 
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