dart-sdk/runtime/vm/object_graph_copy.h
Martin Kustermann 5f9ec9f52a [vm/concurrency] Allow closures as entrypoints in Isolate.spawn calls
We already allow sending closures (if immutable via sharing
otherwise via copying). This CL makes use of this to allow the argument
to `Isolate.spawn()` to be any closure.

Similar to normal message sending, the spawn will fail if the closure
cannot be sent (or causes an error on the new isolate, e.g. rehashing
error).

Issue https://github.com/dart-lang/sdk/issues/46623

TEST=vm/dart{_2,}/isolates/closure_entrypoint_test

Change-Id: Iab342267d87bd87bc8c0c82d16aec58a69a3df44
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/212295
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2021-09-03 19:08:37 +00:00

30 lines
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// Copyright (c) 2021, 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.
#ifndef RUNTIME_VM_OBJECT_GRAPH_COPY_H_
#define RUNTIME_VM_OBJECT_GRAPH_COPY_H_
namespace dart {
class Object;
class ObjectPtr;
// Makes a transitive copy of the object graph referenced by [object]. Will not
// copy objects that can be safely shared - due to being immutable.
//
// The result will be an array of length 3 of the format
//
// [
// <message>,
// <collection-lib-objects-to-rehash>,
// <core-lib-objects-to-rehash>,
// ]
//
// If the array of objects to rehash is not `null` the receiver should re-hash
// those objects.
ObjectPtr CopyMutableObjectGraph(const Object& root);
} // namespace dart
#endif // RUNTIME_VM_OBJECT_GRAPH_COPY_H_