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ec15052c7f
Effectively it is true for all environments where debugger is actually present. TEST=service tests Change-Id: I0592e83004271ca32c107f4347f7bd82172b0a62 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/310622 Reviewed-by: Alexander Markov <alexmarkov@google.com> Commit-Queue: Slava Egorov <vegorov@google.com>
59 lines
2.2 KiB
C++
59 lines
2.2 KiB
C++
// Copyright (c) 2017, 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/bootstrap_natives.h"
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#include "vm/debugger.h"
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#include "vm/exceptions.h"
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#include "vm/native_entry.h"
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#include "vm/object_store.h"
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#include "vm/runtime_entry.h"
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namespace dart {
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DEFINE_NATIVE_ENTRY(AsyncStarMoveNext_debuggerStepCheck, 0, 1) {
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#if !defined(PRODUCT)
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GET_NON_NULL_NATIVE_ARGUMENT(Closure, generator, arguments->NativeArgAt(0));
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Debugger* debugger = isolate->debugger();
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if (debugger != nullptr && debugger->IsSingleStepping()) {
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debugger->AsyncStepInto(generator);
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}
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#endif
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return Object::null();
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}
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// Instantiate generic [closure] using the type argument T
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// corresponding to Future<T> in the given [future] instance
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// (which may extend or implement Future).
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DEFINE_NATIVE_ENTRY(SuspendState_instantiateClosureWithFutureTypeArgument,
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0,
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2) {
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GET_NON_NULL_NATIVE_ARGUMENT(Closure, closure, arguments->NativeArgAt(0));
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GET_NON_NULL_NATIVE_ARGUMENT(Instance, future, arguments->NativeArgAt(1));
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IsolateGroup* isolate_group = thread->isolate_group();
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const auto& future_class =
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Class::Handle(zone, isolate_group->object_store()->future_class());
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ASSERT(future_class.NumTypeArguments() == 1);
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const auto& cls = Class::Handle(zone, future.clazz());
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auto& type = Type::Handle(zone, cls.GetInstantiationOf(zone, future_class));
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ASSERT(!type.IsNull());
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if (!type.IsInstantiated()) {
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const auto& instance_type_args =
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TypeArguments::Handle(zone, future.GetTypeArguments());
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type ^=
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type.InstantiateFrom(instance_type_args, Object::null_type_arguments(),
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kNoneFree, Heap::kOld);
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}
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auto& type_args = TypeArguments::Handle(zone, type.arguments());
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ASSERT(type_args.IsNull() || type_args.Length() == 1);
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type_args = type_args.Canonicalize(thread);
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ASSERT(closure.delayed_type_arguments() ==
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Object::empty_type_arguments().ptr());
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closure.set_delayed_type_arguments(type_args);
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return closure.ptr();
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}
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} // namespace dart
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