| // Copyright 2018 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_OBJECTS_MICROTASK_H_ |
| #define V8_OBJECTS_MICROTASK_H_ |
| |
| #include "src/objects/objects.h" |
| #include "src/objects/struct.h" |
| |
| // Has to be the last include (doesn't have include guards): |
| #include "src/objects/object-macros.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| // Abstract base class for all microtasks that can be scheduled on the |
| // microtask queue. This class merely serves the purpose of a marker |
| // interface. |
| class Microtask : public Struct { |
| public: |
| // Dispatched behavior. |
| DECL_CAST(Microtask) |
| DECL_VERIFIER(Microtask) |
| |
| OBJECT_CONSTRUCTORS(Microtask, Struct); |
| }; |
| |
| // A CallbackTask is a special Microtask that allows us to schedule |
| // C++ microtask callbacks on the microtask queue. This is heavily |
| // used by Blink for example. |
| class CallbackTask : public Microtask { |
| public: |
| DECL_ACCESSORS(callback, Foreign) |
| DECL_ACCESSORS(data, Foreign) |
| |
| DEFINE_FIELD_OFFSET_CONSTANTS(Microtask::kHeaderSize, |
| TORQUE_GENERATED_CALLBACK_TASK_FIELDS) |
| |
| // Dispatched behavior. |
| DECL_CAST(CallbackTask) |
| DECL_PRINTER(CallbackTask) |
| DECL_VERIFIER(CallbackTask) |
| |
| OBJECT_CONSTRUCTORS(CallbackTask, Microtask); |
| }; |
| |
| // A CallableTask is a special (internal) Microtask that allows us to |
| // schedule arbitrary callables on the microtask queue. We use this |
| // for various tests of the microtask queue. |
| class CallableTask : public Microtask { |
| public: |
| DECL_ACCESSORS(callable, JSReceiver) |
| DECL_ACCESSORS(context, Context) |
| |
| DEFINE_FIELD_OFFSET_CONSTANTS(Microtask::kHeaderSize, |
| TORQUE_GENERATED_CALLABLE_TASK_FIELDS) |
| |
| // Dispatched behavior. |
| DECL_CAST(CallableTask) |
| DECL_PRINTER(CallableTask) |
| DECL_VERIFIER(CallableTask) |
| void BriefPrintDetails(std::ostream& os); |
| |
| OBJECT_CONSTRUCTORS(CallableTask, Microtask); |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #include "src/objects/object-macros-undef.h" |
| |
| #endif // V8_OBJECTS_MICROTASK_H_ |