| 1 | /*
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| 2 | * Copyright (C) 2008 Apple Inc. All rights reserved.
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| 3 | *
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| 4 | * Redistribution and use in source and binary forms, with or without
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| 5 | * modification, are permitted provided that the following conditions
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| 6 | * are met:
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| 7 | * 1. Redistributions of source code must retain the above copyright
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| 8 | * notice, this list of conditions and the following disclaimer.
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| 9 | * 2. Redistributions in binary form must reproduce the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer in the
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| 11 | * documentation and/or other materials provided with the distribution.
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| 12 | *
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| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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| 14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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| 17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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| 19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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| 20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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| 21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 24 | */
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| 25 |
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| 26 | #include "config.h"
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| 27 | #include "StructureStubInfo.h"
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| 28 |
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| 29 | namespace JSC {
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| 30 |
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| 31 | #if ENABLE(JIT)
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| 32 | void StructureStubInfo::deref()
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| 33 | {
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| 34 | switch (accessType) {
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| 35 | case access_get_by_id_self:
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| 36 | u.getByIdSelf.baseObjectStructure->deref();
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| 37 | return;
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| 38 | case access_get_by_id_proto:
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| 39 | u.getByIdProto.baseObjectStructure->deref();
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| 40 | u.getByIdProto.prototypeStructure->deref();
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| 41 | return;
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| 42 | case access_get_by_id_chain:
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| 43 | u.getByIdChain.baseObjectStructure->deref();
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| 44 | u.getByIdChain.chain->deref();
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| 45 | return;
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| 46 | case access_get_by_id_self_list: {
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| 47 | PolymorphicAccessStructureList* polymorphicStructures = u.getByIdSelfList.structureList;
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| 48 | polymorphicStructures->derefStructures(u.getByIdSelfList.listSize);
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| 49 | delete polymorphicStructures;
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| 50 | return;
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| 51 | }
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| 52 | case access_get_by_id_proto_list: {
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| 53 | PolymorphicAccessStructureList* polymorphicStructures = u.getByIdProtoList.structureList;
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| 54 | polymorphicStructures->derefStructures(u.getByIdProtoList.listSize);
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| 55 | delete polymorphicStructures;
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| 56 | return;
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| 57 | }
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| 58 | case access_put_by_id_transition:
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| 59 | u.putByIdTransition.previousStructure->deref();
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| 60 | u.putByIdTransition.structure->deref();
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| 61 | u.putByIdTransition.chain->deref();
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| 62 | return;
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| 63 | case access_put_by_id_replace:
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| 64 | u.putByIdReplace.baseObjectStructure->deref();
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| 65 | return;
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| 66 | case access_get_by_id:
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| 67 | case access_put_by_id:
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| 68 | case access_get_by_id_generic:
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| 69 | case access_put_by_id_generic:
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| 70 | case access_get_array_length:
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| 71 | case access_get_string_length:
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| 72 | // These instructions don't ref their Structures.
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| 73 | return;
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| 74 | default:
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| 75 | ASSERT_NOT_REACHED();
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| 76 | }
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| 77 | }
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| 78 | #endif
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| 79 |
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| 80 | } // namespace JSC
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