Await always waits

runtime/vm/object_store.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object_store.h"
 
 #include "vm/exceptions.h"
 #include "vm/dart_entry.h"
 #include "vm/isolate.h"
 #include "vm/object.h"
@@ skipping 17 matching lines @@
     smi_type_(Type::null()),
     mint_class_(Class::null()),
     mint_type_(Type::null()),
     bigint_class_(Class::null()),
     double_class_(Class::null()),
     double_type_(Type::null()),
     float32x4_type_(Type::null()),
     int32x4_type_(Type::null()),
     float64x2_type_(Type::null()),
     string_type_(Type::null()),
+    future_class_(Class::null()),
+    completer_class_(Class::null()),
     one_byte_string_class_(Class::null()),
     two_byte_string_class_(Class::null()),
     external_one_byte_string_class_(Class::null()),
     external_two_byte_string_class_(Class::null()),
     bool_type_(Type::null()),
     bool_class_(Class::null()),
     array_class_(Class::null()),
     array_type_(Type::null()),
     immutable_array_class_(Class::null()),
     growable_object_array_class_(Class::null()),
@@ skipping 111 matching lines @@
   const Stacktrace& stack_trace =
       Stacktrace::Handle(Stacktrace::New(code_array, pc_offset_array));
   // Expansion of inlined functions requires additional memory at run time,
   // avoid it.
   stack_trace.set_expand_inlined(false);
   set_preallocated_stack_trace(stack_trace);
 
   return true;
 }
 
+
+void ObjectStore::InitAsyncObjects() {
+  Isolate* isolate = Isolate::Current();
+  ASSERT(isolate != NULL && isolate->object_store() == this);
+
+  const Library& async_lib = Library::Handle(async_library());
+  ASSERT(!async_lib.IsNull());
+  Class& cls = Class::Handle(isolate);
+  cls = async_lib.LookupClass(Symbols::Future());
+  ASSERT(!cls.IsNull());
+  set_future_class(cls);
+  cls = async_lib.LookupClass(Symbols::Completer());
+  ASSERT(!cls.IsNull());
+  set_completer_class(cls);
+}
+
 }  // namespace dart