- Make sure to fail early if an non-stacktrace is passed into the VM

runtime/vm/object.cc

 // Copyright (c) 2012, 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.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 13192 matching lines @@
 
 void LanguageError::PrintJSONImpl(JSONStream* stream, bool ref) const {
   JSONObject jsobj(stream);
   AddTypeProperties(&jsobj, "Error", JSONType(), ref);
   jsobj.AddProperty("id", "");
   jsobj.AddProperty("message", ToErrorCString());
 }
 
 
 RawUnhandledException* UnhandledException::New(const Instance& exception,
-                                               const Instance& stacktrace,
+                                               const Stacktrace& stacktrace,
                                                Heap::Space space) {
   ASSERT(Object::unhandled_exception_class() != Class::null());
   UnhandledException& result = UnhandledException::Handle();
   {
     RawObject* raw = Object::Allocate(UnhandledException::kClassId,
                                       UnhandledException::InstanceSize(),
                                       space);
     NoGCScope no_gc;
     result ^= raw;
   }
   result.set_exception(exception);
   result.set_stacktrace(stacktrace);
   return result.raw();
 }
 
 
 RawUnhandledException* UnhandledException::New(Heap::Space space) {
   ASSERT(Object::unhandled_exception_class() != Class::null());
   UnhandledException& result = UnhandledException::Handle();
   {
     RawObject* raw = Object::Allocate(UnhandledException::kClassId,
                                       UnhandledException::InstanceSize(),
                                       space);
     NoGCScope no_gc;
     result ^= raw;
   }
   result.set_exception(Object::null_instance());
-  result.set_stacktrace(Object::null_instance());
+  result.set_stacktrace(Stacktrace::Handle());
   return result.raw();
 }
 
 
 void UnhandledException::set_exception(const Instance& exception) const {
   StorePointer(&raw_ptr()->exception_, exception.raw());
 }
 
 
-void UnhandledException::set_stacktrace(const Instance& stacktrace) const {
+void UnhandledException::set_stacktrace(const Stacktrace& stacktrace) const {
   StorePointer(&raw_ptr()->stacktrace_, stacktrace.raw());
 }
 
 
 const char* UnhandledException::ToErrorCString() const {
   Isolate* isolate = Isolate::Current();
   if (exception() == isolate->object_store()->out_of_memory()) {
     return "Unhandled exception:\nOut of memory";
   }
   if (exception() == isolate->object_store()->stack_overflow()) {
@@ skipping 7304 matching lines @@
   return tag_label.ToCString();
 }
 
 
 void UserTag::PrintJSONImpl(JSONStream* stream, bool ref) const {
   Instance::PrintJSONImpl(stream, ref);
 }
 
 
 }  // namespace dart