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/*
* Copyright (C) 2008 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.
*/
#include "config.h"
#include "StructureStubInfo.h"
#include "JSObject.h"
#include "ScopeChain.h"
namespace JSC {
#if ENABLE(JIT)
void StructureStubInfo::deref()
{
switch (accessType) {
case access_get_by_id_self:
u.getByIdSelf.baseObjectStructure->deref();
return;
case access_get_by_id_proto:
u.getByIdProto.baseObjectStructure->deref();
u.getByIdProto.prototypeStructure->deref();
return;
case access_get_by_id_chain:
u.getByIdChain.baseObjectStructure->deref();
return;
case access_get_by_id_self_list: {
PolymorphicAccessStructureList* polymorphicStructures = u.getByIdSelfList.structureList;
polymorphicStructures->derefStructures(u.getByIdSelfList.listSize);
delete polymorphicStructures;
return;
}
case access_get_by_id_proto_list: {
PolymorphicAccessStructureList* polymorphicStructures = u.getByIdProtoList.structureList;
polymorphicStructures->derefStructures(u.getByIdProtoList.listSize);
delete polymorphicStructures;
return;
}
case access_put_by_id_transition:
u.putByIdTransition.previousStructure->deref();
u.putByIdTransition.structure->deref();
return;
case access_put_by_id_replace:
u.putByIdReplace.baseObjectStructure->deref();
return;
case access_get_by_id:
case access_put_by_id:
case access_get_by_id_generic:
case access_put_by_id_generic:
case access_get_array_length:
case access_get_string_length:
// These instructions don't ref their Structures.
return;
default:
ASSERT_NOT_REACHED();
}
}
void StructureStubInfo::markAggregate(MarkStack& markStack)
{
switch (accessType) {
case access_get_by_id_self:
return;
case access_get_by_id_proto:
return;
case access_get_by_id_chain:
return;
case access_get_by_id_self_list: {
PolymorphicAccessStructureList* polymorphicStructures = u.getByIdSelfList.structureList;
polymorphicStructures->markAggregate(markStack, u.getByIdSelfList.listSize);
return;
}
case access_get_by_id_proto_list: {
PolymorphicAccessStructureList* polymorphicStructures = u.getByIdProtoList.structureList;
polymorphicStructures->markAggregate(markStack, u.getByIdProtoList.listSize);
return;
}
case access_put_by_id_transition:
return;
case access_put_by_id_replace:
return;
case access_get_by_id:
case access_put_by_id:
case access_get_by_id_generic:
case access_put_by_id_generic:
case access_get_array_length:
case access_get_string_length:
// These instructions don't ref their Structures.
return;
default:
ASSERT_NOT_REACHED();
}
}
#endif
} // namespace JSC
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