| 1 | /*
|
|---|
| 2 | * Copyright (C) 2010 University of Szeged
|
|---|
| 3 | * Copyright (C) 2010 Renata Hodovan ([email protected])
|
|---|
| 4 | * All rights reserved.
|
|---|
| 5 | *
|
|---|
| 6 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 7 | * modification, are permitted provided that the following conditions
|
|---|
| 8 | * are met:
|
|---|
| 9 | * 1. Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * 2. Redistributions in binary form must reproduce the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 13 | * documentation and/or other materials provided with the distribution.
|
|---|
| 14 | *
|
|---|
| 15 | * THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY
|
|---|
| 16 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|---|
| 17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|---|
| 18 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL UNIVERSITY OF SZEGED OR
|
|---|
| 19 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|---|
| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|---|
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|---|
| 22 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
|---|
| 23 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|---|
| 25 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 26 | */
|
|---|
| 27 |
|
|---|
| 28 | #include "RegExp.h"
|
|---|
| 29 | #include "RegExpKey.h"
|
|---|
| 30 | #include "UString.h"
|
|---|
| 31 |
|
|---|
| 32 | #ifndef RegExpCache_h
|
|---|
| 33 | #define RegExpCache_h
|
|---|
| 34 |
|
|---|
| 35 | namespace JSC {
|
|---|
| 36 |
|
|---|
| 37 | class RegExpCache {
|
|---|
| 38 | public:
|
|---|
| 39 | PassRefPtr<RegExp> lookupOrCreate(const UString& patternString, const UString& flags);
|
|---|
| 40 | PassRefPtr<RegExp> create(const UString& patternString, const UString& flags);
|
|---|
| 41 | RegExpCache(JSGlobalData* globalData);
|
|---|
| 42 |
|
|---|
| 43 | private:
|
|---|
| 44 | static const unsigned maxCacheablePatternLength = 256;
|
|---|
| 45 | static const int maxCacheableEntries = 256;
|
|---|
| 46 |
|
|---|
| 47 | typedef HashMap<RegExpKey, RefPtr<RegExp> > RegExpCacheMap;
|
|---|
| 48 | RegExpKey patternKeyArray[maxCacheableEntries];
|
|---|
| 49 | RegExpCacheMap m_cacheMap;
|
|---|
| 50 | JSGlobalData* m_globalData;
|
|---|
| 51 | int m_nextKeyToEvict;
|
|---|
| 52 | bool m_isFull;
|
|---|
| 53 | };
|
|---|
| 54 |
|
|---|
| 55 | } // namespace JSC
|
|---|
| 56 |
|
|---|
| 57 | #endif // RegExpCache_h
|
|---|
