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/*
* Copyright (C) 2021 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
namespace JSC {
class AbstractSlotVisitor;
class JSCell;
class SlotVisitor;
#define UNUSED_MODIFIER_ARGUMENT /* unused */
#define DECLARE_UNUSED_STRUCT_TO_TERMINATE_VISIT_MACRO_EXPANDER_IMPL(counter) \
struct UnusedSlotVisitorMacroStructSoWeCanHaveASemicolon##counter { }
#define DECLARE_UNUSED_STRUCT_TO_TERMINATE_VISIT_MACRO_EXPANDER(counter) \
DECLARE_UNUSED_STRUCT_TO_TERMINATE_VISIT_MACRO_EXPANDER_IMPL(counter)
#define DECLARE_UNUSED_STRUCT_TO_TERMINATE_VISIT_MACRO \
DECLARE_UNUSED_STRUCT_TO_TERMINATE_VISIT_MACRO_EXPANDER(__COUNTER__)
// Macros for visitAggregate().
#define DECLARE_VISIT_AGGREGATE_WITH_MODIFIER(postModifier) \
private: \
template<typename Visitor> ALWAYS_INLINE void visitAggregateImpl(Visitor&) postModifier; \
public: \
void visitAggregate(AbstractSlotVisitor&) postModifier; \
void visitAggregate(SlotVisitor&) postModifier
#define DECLARE_VISIT_AGGREGATE \
DECLARE_VISIT_AGGREGATE_WITH_MODIFIER(UNUSED_MODIFIER_ARGUMENT)
#define DEFINE_VISIT_AGGREGATE_WITH_MODIFIER(className, postModifier) \
void className::visitAggregate(AbstractSlotVisitor& visitor) postModifier { visitAggregateImpl(visitor); } \
void className::visitAggregate(SlotVisitor& visitor) postModifier { visitAggregateImpl(visitor); } \
DECLARE_UNUSED_STRUCT_TO_TERMINATE_VISIT_MACRO
#define DEFINE_VISIT_AGGREGATE(className) \
DEFINE_VISIT_AGGREGATE_WITH_MODIFIER(className, UNUSED_MODIFIER_ARGUMENT)
// Macros for static visitChildren().
#define DECLARE_VISIT_CHILDREN_WITH_MODIFIER(preModifier) \
private: \
template<typename Visitor> ALWAYS_INLINE static void visitChildrenImpl(JSCell*, Visitor&); \
public: \
preModifier static void visitChildren(JSCell*, AbstractSlotVisitor&); \
preModifier static void visitChildren(JSCell*, SlotVisitor&)
#define DECLARE_VISIT_CHILDREN \
DECLARE_VISIT_CHILDREN_WITH_MODIFIER(UNUSED_MODIFIER_ARGUMENT)
#define DEFINE_VISIT_CHILDREN_WITH_MODIFIER(preModifier, className) \
preModifier void className::visitChildren(JSCell* cell, AbstractSlotVisitor& visitor) \
{ \
AbstractSlotVisitor::ReferrerContext context(visitor, cell); \
visitChildrenImpl(cell, visitor); \
} \
preModifier void className::visitChildren(JSCell* cell, SlotVisitor& visitor) { visitChildrenImpl(cell, visitor); } \
DECLARE_UNUSED_STRUCT_TO_TERMINATE_VISIT_MACRO
#define DEFINE_VISIT_CHILDREN(className) \
DEFINE_VISIT_CHILDREN_WITH_MODIFIER(UNUSED_MODIFIER_ARGUMENT, className)
// Macros for static visitOutputConstraints().
#define DECLARE_VISIT_OUTPUT_CONSTRAINTS_WITH_MODIFIER(preModifier) \
private: \
template<typename Visitor> ALWAYS_INLINE static void visitOutputConstraintsImpl(JSCell*, Visitor&); \
public: \
preModifier static void visitOutputConstraints(JSCell*, AbstractSlotVisitor&); \
preModifier static void visitOutputConstraints(JSCell*, SlotVisitor&)
#define DECLARE_VISIT_OUTPUT_CONSTRAINTS \
DECLARE_VISIT_OUTPUT_CONSTRAINTS_WITH_MODIFIER(UNUSED_MODIFIER_ARGUMENT)
#define DEFINE_VISIT_OUTPUT_CONSTRAINTS_WITH_MODIFIER(preModifier, className) \
preModifier void className::visitOutputConstraints(JSCell* cell, AbstractSlotVisitor& visitor) \
{ \
AbstractSlotVisitor::ReferrerContext context(visitor, cell); \
visitOutputConstraintsImpl(cell, visitor); \
} \
preModifier void className::visitOutputConstraints(JSCell* cell, SlotVisitor& visitor) { visitOutputConstraintsImpl(cell, visitor); } \
DECLARE_UNUSED_STRUCT_TO_TERMINATE_VISIT_MACRO
#define DEFINE_VISIT_OUTPUT_CONSTRAINTS(className) \
DEFINE_VISIT_OUTPUT_CONSTRAINTS_WITH_MODIFIER(UNUSED_MODIFIER_ARGUMENT, className)
// Macros for visitAdditionalChildren().
#define DEFINE_VISIT_ADDITIONAL_CHILDREN(className) \
template void className::visitAdditionalChildren(JSC::AbstractSlotVisitor&); \
template void className::visitAdditionalChildren(JSC::SlotVisitor&)
} // namespace JSC
using JSC::AbstractSlotVisitor;
using JSC::JSCell;
using JSC::SlotVisitor;
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