schema-codegen: fix generating for new schema({}) definition syntax

Author: endel

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@colyseus/schema",
-  "version": "3.0.69",
+  "version": "3.0.70",
   "description": "Binary state serializer with delta encoding for games",
   "bin": {
     "schema-codegen": "bin/schema-codegen",

src/codegen/parser.ts

@@ -186,7 +186,7 @@ function inspectNode(node: ts.Node, context: Context, decoratorName: string) {
                 // skip if no className is provided
                 if (!className) { break; }
 
-                if (currentStructure.name !== className) {
+                if (currentStructure?.name !== className) {
                     currentStructure = new Class();
                 }
                 context.addStructure(currentStructure);
@@ -277,7 +277,7 @@ function inspectNode(node: ts.Node, context: Context, decoratorName: string) {
                 // skip if no className is provided
                 if (!className) { break; }
 
-                if (currentStructure.name !== className) {
+                if (currentStructure?.name !== className) {
                     currentStructure = new Class();
                     context.addStructure(currentStructure);
                 }

test/codegen/Codegen.test.ts

@@ -109,6 +109,16 @@ describe("schema-codegen", () => {
 
             assert.strictEqual(3, outputFiles.length);
         });
+
+        it("with map", () => {
+            const inputFiles = glob.sync(path.resolve(INPUT_DIR, "PlainSchemaMap.ts"));
+
+            generate("ts", { files: inputFiles, output: OUTPUT_DIR, });
+
+            const outputFiles = glob.sync(path.resolve(OUTPUT_DIR, "*.ts"));
+
+            assert.strictEqual(2, outputFiles.length);
+        });
     });
 
     describe("invalid/error", () => {