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/*
* Copyright (C) 2015-2023 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "ObjectPropertyCondition.h"
#include "Watchpoint.h"
#include <wtf/Noncopyable.h>
#include <wtf/TZoneMalloc.h>
namespace JSC {
// FIXME: This isn't actually a Watchpoint. We should probably have a name which better reflects that:
// https://bugs.webkit.org/show_bug.cgi?id=202381
class AdaptiveInferredPropertyValueWatchpointBase {
WTF_MAKE_NONCOPYABLE(AdaptiveInferredPropertyValueWatchpointBase);
WTF_MAKE_TZONE_ALLOCATED(AdaptiveInferredPropertyValueWatchpointBase);
public:
AdaptiveInferredPropertyValueWatchpointBase(const ObjectPropertyCondition&);
AdaptiveInferredPropertyValueWatchpointBase() = default;
const ObjectPropertyCondition& key() const { return m_key; }
void initialize(const ObjectPropertyCondition&);
void install(VM&);
virtual ~AdaptiveInferredPropertyValueWatchpointBase() = default;
class StructureWatchpoint final : public Watchpoint {
public:
StructureWatchpoint()
: Watchpoint(Watchpoint::Type::AdaptiveInferredPropertyValueStructure)
{ }
void fireInternal(VM&, const FireDetail&);
};
static_assert(sizeof(StructureWatchpoint) == sizeof(Watchpoint));
class PropertyWatchpoint final : public Watchpoint {
public:
PropertyWatchpoint()
: Watchpoint(Watchpoint::Type::AdaptiveInferredPropertyValueProperty)
{ }
void fireInternal(VM&, const FireDetail&);
};
static_assert(sizeof(PropertyWatchpoint) == sizeof(Watchpoint));
protected:
virtual bool isValid() const;
virtual void handleFire(VM&, const FireDetail&) = 0;
private:
void fire(VM&, const FireDetail&);
ObjectPropertyCondition m_key;
StructureWatchpoint m_structureWatchpoint;
PropertyWatchpoint m_propertyWatchpoint;
};
} // namespace JSC
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