1 | /* |
2 | * Copyright (C) 2008 Apple Inc. All rights reserved. |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #include "config.h" |
27 | #include "StructureStubInfo.h" |
28 | |
29 | namespace JSC { |
30 | |
31 | #if ENABLE(JIT) |
32 | void StructureStubInfo::deref() |
33 | { |
34 | switch (accessType) { |
35 | case access_get_by_id_self: |
36 | u.getByIdSelf.baseObjectStructure->deref(); |
37 | return; |
38 | case access_get_by_id_proto: |
39 | u.getByIdProto.baseObjectStructure->deref(); |
40 | u.getByIdProto.prototypeStructure->deref(); |
41 | return; |
42 | case access_get_by_id_chain: |
43 | u.getByIdChain.baseObjectStructure->deref(); |
44 | u.getByIdChain.chain->deref(); |
45 | return; |
46 | case access_get_by_id_self_list: { |
47 | PolymorphicAccessStructureList* polymorphicStructures = u.getByIdSelfList.structureList; |
48 | polymorphicStructures->derefStructures(count: u.getByIdSelfList.listSize); |
49 | delete polymorphicStructures; |
50 | return; |
51 | } |
52 | case access_get_by_id_proto_list: { |
53 | PolymorphicAccessStructureList* polymorphicStructures = u.getByIdProtoList.structureList; |
54 | polymorphicStructures->derefStructures(count: u.getByIdProtoList.listSize); |
55 | delete polymorphicStructures; |
56 | return; |
57 | } |
58 | case access_put_by_id_transition: |
59 | u.putByIdTransition.previousStructure->deref(); |
60 | u.putByIdTransition.structure->deref(); |
61 | u.putByIdTransition.chain->deref(); |
62 | return; |
63 | case access_put_by_id_replace: |
64 | u.putByIdReplace.baseObjectStructure->deref(); |
65 | return; |
66 | case access_get_by_id: |
67 | case access_put_by_id: |
68 | case access_get_by_id_generic: |
69 | case access_put_by_id_generic: |
70 | case access_get_array_length: |
71 | case access_get_string_length: |
72 | // These instructions don't ref their Structures. |
73 | return; |
74 | default: |
75 | ASSERT_NOT_REACHED(); |
76 | } |
77 | } |
78 | #endif |
79 | |
80 | } // namespace JSC |
81 | |