Calling a generator function returns a generator object

src/objects-printer.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 114 matching lines @@
       break;
     case EXTERNAL_DOUBLE_ARRAY_TYPE:
       ExternalDoubleArray::cast(this)->ExternalDoubleArrayPrint(out);
       break;
     case FILLER_TYPE:
       PrintF(out, "filler");
       break;
     case JS_OBJECT_TYPE:  // fall through
     case JS_CONTEXT_EXTENSION_OBJECT_TYPE:
     case JS_ARRAY_TYPE:
+    case JS_GENERATOR_OBJECT_TYPE:
     case JS_REGEXP_TYPE:
       JSObject::cast(this)->JSObjectPrint(out);
       break;
     case ODDBALL_TYPE:
       Oddball::cast(this)->to_string()->Print(out);
       break;
     case JS_MODULE_TYPE:
       JSModule::cast(this)->JSModulePrint(out);
       break;
     case JS_FUNCTION_TYPE:
@@ skipping 378 matching lines @@
     case EXTERNAL_UNSIGNED_INT_ARRAY_TYPE:
       return "EXTERNAL_UNSIGNED_INT_ARRAY";
     case EXTERNAL_FLOAT_ARRAY_TYPE: return "EXTERNAL_FLOAT_ARRAY";
     case EXTERNAL_DOUBLE_ARRAY_TYPE: return "EXTERNAL_DOUBLE_ARRAY";
     case FILLER_TYPE: return "FILLER";
     case JS_OBJECT_TYPE: return "JS_OBJECT";
     case JS_CONTEXT_EXTENSION_OBJECT_TYPE: return "JS_CONTEXT_EXTENSION_OBJECT";
     case ODDBALL_TYPE: return "ODDBALL";
     case JS_GLOBAL_PROPERTY_CELL_TYPE: return "JS_GLOBAL_PROPERTY_CELL";
     case SHARED_FUNCTION_INFO_TYPE: return "SHARED_FUNCTION_INFO";
+    case JS_GENERATOR_OBJECT_TYPE: return "JS_GENERATOR_OBJECT";
     case JS_MODULE_TYPE: return "JS_MODULE";
     case JS_FUNCTION_TYPE: return "JS_FUNCTION";
     case CODE_TYPE: return "CODE";
     case JS_ARRAY_TYPE: return "JS_ARRAY";
     case JS_PROXY_TYPE: return "JS_PROXY";
     case JS_WEAK_MAP_TYPE: return "JS_WEAK_MAP";
     case JS_REGEXP_TYPE: return "JS_REGEXP";
     case JS_VALUE_TYPE: return "JS_VALUE";
     case JS_GLOBAL_OBJECT_TYPE: return "JS_GLOBAL_OBJECT";
     case JS_BUILTINS_OBJECT_TYPE: return "JS_BUILTINS_OBJECT";
@@ skipping 642 matching lines @@
     }
   }
   PrintF(out, "\n");
 }
 
 
 #endif  // OBJECT_PRINT
 
 
 } }  // namespace v8::internal