Alexander Aprelev
37abbb2e3d
This CL adds acquisiton of write lock and check for whether write lock is held when updating class functions, primarily populated during class finalization. Read locks will be added in successive CLs, so is extending of the locks coverage to all aspects of program structure changes. Bug: https://github.com/dart-lang/sdk/issues/36097 Change-Id: I3dba6bc23db4e45599a20717226210f12e7fd2b3 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/168140 Commit-Queue: Alexander Aprelev <aam@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>
36 lines
1.4 KiB
C++
36 lines
1.4 KiB
C++
// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/globals.h"
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#include "vm/object.h"
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#include "vm/symbols.h"
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namespace dart {
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// Add function to a class and that class to the class dictionary so that
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// frame walking can be used.
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const Function& RegisterFakeFunction(const char* name, const Code& code) {
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Thread* thread = Thread::Current();
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const String& class_name = String::Handle(Symbols::New(thread, "ownerClass"));
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const Script& script = Script::Handle();
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const Library& lib = Library::Handle(Library::CoreLibrary());
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const Class& owner_class = Class::Handle(
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Class::New(lib, class_name, script, TokenPosition::kNoSource));
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const String& function_name = String::ZoneHandle(Symbols::New(thread, name));
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const Function& function = Function::ZoneHandle(Function::New(
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function_name, FunctionLayout::kRegularFunction, true, false, false,
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false, false, owner_class, TokenPosition::kMinSource));
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const Array& functions = Array::Handle(Array::New(1));
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functions.SetAt(0, function);
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{
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SafepointWriteRwLocker ml(thread, thread->isolate_group()->program_lock());
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owner_class.SetFunctions(functions);
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}
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lib.AddClass(owner_class);
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function.AttachCode(code);
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return function;
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}
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} // namespace dart
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