- Support for patching of class methods and fields.

runtime/vm/exceptions.cc

 // Copyright (c) 2011, 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/exceptions.h"
 
 #include "vm/dart_entry.h"
 #include "vm/debugger.h"
 #include "vm/flags.h"
 #include "vm/object.h"
@@ skipping 189 matching lines @@
 
 // Static helpers for allocating, initializing, and throwing an error instance.
 
 // Return the script of the Dart function that called the native entry or the
 // runtime entry. The frame iterator points to the callee.
 RawScript* Exceptions::GetCallerScript(DartFrameIterator* iterator) {
   StackFrame* caller_frame = iterator->NextFrame();
   ASSERT(caller_frame != NULL && caller_frame->IsDartFrame());
   const Function& caller = Function::Handle(caller_frame->LookupDartFunction());
   ASSERT(!caller.IsNull());
-  const Class& caller_class = Class::Handle(caller.owner());
-  return caller_class.script();
+  return caller.script();
 }
 
 
 // Allocate a new instance of the given class name.
 // TODO(hausner): Rename this NewCoreInstance to call out the fact that
 // the class name is resolved in the core library implicitly?
 RawInstance* Exceptions::NewInstance(const char* class_name) {
   const String& cls_name = String::Handle(Symbols::New(class_name));
   const Library& core_lib = Library::Handle(Library::CoreLibrary());
   Class& cls = Class::Handle(core_lib.LookupClass(cls_name));
@@ skipping 213 matching lines @@
     case kIsolateSpawn:
       library = Library::IsolateLibrary();
       class_name = Symbols::New("IsolateSpawnException");
       break;
   }
 
   return DartLibraryCalls::ExceptionCreate(library, class_name, arguments);
 }
 
 }  // namespace dart