1/*
2 * Copyright (C) 2014 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
27#include "config.h"
28#include "TypeLocationCache.h"
29
30#include "TypeProfiler.h"
31#include "VM.h"
32
33namespace JSC {
34
35std::pair<TypeLocation*, bool> TypeLocationCache::getTypeLocation(GlobalVariableID globalVariableID, intptr_t sourceID, unsigned start, unsigned end, RefPtr<TypeSet>&& globalTypeSet, VM* vm)
36{
37 LocationKey key;
38 key.m_globalVariableID = globalVariableID;
39 key.m_sourceID = sourceID;
40 key.m_start = start;
41 key.m_end = end;
42
43 bool isNewLocation = false;
44 if (m_locationMap.find(key) == m_locationMap.end()) {
45 ASSERT(vm->typeProfiler());
46 TypeLocation* location = vm->typeProfiler()->nextTypeLocation();
47 location->m_globalVariableID = globalVariableID;
48 location->m_sourceID = sourceID;
49 location->m_divotStart = start;
50 location->m_divotEnd = end;
51 location->m_globalTypeSet = WTFMove(globalTypeSet);
52
53 m_locationMap[key] = location;
54 isNewLocation = true;
55 }
56
57 TypeLocation* location = m_locationMap.find(key)->second;
58 return std::pair<TypeLocation*, bool>(location, isNewLocation);
59}
60
61} // namespace JSC
62