Export empty model index if no model_* files exist (#996)

smithy-lang · Oct 10, 2023 · d5d3c62 · d5d3c62
1 parent fcc0c46
commit d5d3c62
Showing 1 changed file with 13 additions and 2 deletions.
diff --git a/...script-codegen/src/main/java/software/amazon/smithy/typescript/codegen/SymbolVisitor.java b/...script-codegen/src/main/java/software/amazon/smithy/typescript/codegen/SymbolVisitor.java
@@ -22,6 +22,7 @@
 import java.util.Comparator;
 import java.util.HashMap;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
@@ -486,13 +487,23 @@ static void writeModelIndex(Collection<Shape> shapes, SymbolProvider symbolProvi
                                     FileManifest fileManifest) {
             TypeScriptWriter writer = new TypeScriptWriter("");
             String modelPrefix = String.join("/", ".", CodegenUtils.SOURCE_FOLDER, SHAPE_NAMESPACE_PREFIX);
-            shapes.stream()
+            List<String> collectedModelNamespaces = shapes.stream()
                     .map(shape -> symbolProvider.toSymbol(shape).getNamespace())
                     .filter(namespace -> namespace.startsWith(modelPrefix))
                     .distinct()
                     .sorted(Comparator.naturalOrder())
                     .map(namespace -> namespace.replaceFirst(Matcher.quoteReplacement(modelPrefix), "."))
-                    .forEach(namespace -> writer.write("export * from $S;", namespace));
+                    .toList();
+
+            // Export empty model index if no models_* files are present
+            if (collectedModelNamespaces.isEmpty()) {
+                writer.write("export {};");
+            } else {
+                for (String namespace : collectedModelNamespaces) {
+                    writer.write("export * from $S;", namespace);
+                }
+            }
+
             fileManifest.writeFile(
                     Paths.get(CodegenUtils.SOURCE_FOLDER, SHAPE_NAMESPACE_PREFIX, "index.ts").toString(),
                     writer.toString());