Refactor Isolate -> Thread in NativeArguments and exception handler jump.

runtime/lib/isolate.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 "platform/assert.h"
 #include "vm/bootstrap_natives.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_entry.h"
@@ skipping 38 matching lines @@
   int32_t hi = static_cast<int32_t>(id >> 32);
   int32_t lo = static_cast<int32_t>(id);
   int32_t hash = (hi ^ lo) & kSmiMax;
   return Smi::New(hash);
 }
 
 
 DEFINE_NATIVE_ENTRY(RawReceivePortImpl_factory, 1) {
   ASSERT(TypeArguments::CheckedHandle(arguments->NativeArgAt(0)).IsNull());
   Dart_Port port_id =
-      PortMap::CreatePort(arguments->isolate()->message_handler());
+      PortMap::CreatePort(isolate->message_handler());
   return ReceivePort::New(port_id, false /* not control port */);
 }
 
 
 DEFINE_NATIVE_ENTRY(RawReceivePortImpl_get_id, 1) {
   GET_NON_NULL_NATIVE_ARGUMENT(ReceivePort, port, arguments->NativeArgAt(0));
   return Integer::NewFromUint64(port.Id());
 }
 
 
@@ skipping 178 matching lines @@
   GET_NON_NULL_NATIVE_ARGUMENT(String, uri, arguments->NativeArgAt(1));
   GET_NON_NULL_NATIVE_ARGUMENT(Instance, args, arguments->NativeArgAt(2));
   GET_NON_NULL_NATIVE_ARGUMENT(Instance, message, arguments->NativeArgAt(3));
   GET_NON_NULL_NATIVE_ARGUMENT(Bool, paused, arguments->NativeArgAt(4));
   GET_NATIVE_ARGUMENT(String, package_root, arguments->NativeArgAt(5));
 
   // Canonicalize the uri with respect to the current isolate.
   char* error = NULL;
   char* canonical_uri = NULL;
   const Library& root_lib =
-      Library::Handle(arguments->isolate()->object_store()->root_library());
-  if (!CanonicalizeUri(arguments->isolate(), root_lib, uri,
+      Library::Handle(isolate->object_store()->root_library());
+  if (!CanonicalizeUri(isolate, root_lib, uri,
                        &canonical_uri, &error)) {
     const String& msg = String::Handle(String::New(error));
     ThrowIsolateSpawnException(msg);
   }
 
   char* utf8_package_root = NULL;
   if (!package_root.IsNull()) {
     const intptr_t len = Utf8::Length(package_root);
     utf8_package_root = zone->Alloc<char>(len + 1);
     package_root.ToUTF8(reinterpret_cast<uint8_t*>(utf8_package_root), len);
@@ skipping 32 matching lines @@
   MessageWriter writer(&data, &allocator, false);
   writer.WriteMessage(msg);
 
   PortMap::PostMessage(new Message(port.Id(),
                                    data, writer.BytesWritten(),
                                    Message::kOOBPriority));
   return Object::null();
 }
 
 }  // namespace dart