projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 9dae56ea | 1 | /* |
| f9bf01c6 | 2 | * Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved. |
| 9dae56ea A |
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 | #ifndef SmallStrings_h | |
| 27 | #define SmallStrings_h | |
| 28 | ||
| 29 | #include "UString.h" | |
| 30 | #include <wtf/OwnPtr.h> | |
| 31 | ||
| 32 | namespace JSC { | |
| 33 | ||
| 34 | class JSGlobalData; | |
| 35 | class JSString; | |
| f9bf01c6 | 36 | class MarkStack; |
| 9dae56ea A |
37 | class SmallStringsStorage; |
| 38 | ||
| f9bf01c6 | 39 | class SmallStrings : public Noncopyable { |
| 9dae56ea A |
40 | public: |
| 41 | SmallStrings(); | |
| 42 | ~SmallStrings(); | |
| 43 | ||
| 44 | JSString* emptyString(JSGlobalData* globalData) | |
| 45 | { | |
| 46 | if (!m_emptyString) | |
| 47 | createEmptyString(globalData); | |
| 48 | return m_emptyString; | |
| 49 | } | |
| 50 | JSString* singleCharacterString(JSGlobalData* globalData, unsigned char character) | |
| 51 | { | |
| 52 | if (!m_singleCharacterStrings[character]) | |
| 53 | createSingleCharacterString(globalData, character); | |
| 54 | return m_singleCharacterStrings[character]; | |
| 55 | } | |
| 56 | ||
| 57 | UString::Rep* singleCharacterStringRep(unsigned char character); | |
| 58 | ||
| f9bf01c6 A |
59 | void markChildren(MarkStack&); |
| 60 | void clear(); | |
| 9dae56ea A |
61 | |
| 62 | unsigned count() const; | |
| 4e4e5a6f A |
63 | #if ENABLE(JIT) |
| 64 | JSString** singleCharacterStrings() { return m_singleCharacterStrings; } | |
| 65 | #endif | |
| 9dae56ea A |
66 | private: |
| 67 | void createEmptyString(JSGlobalData*); | |
| 68 | void createSingleCharacterString(JSGlobalData*, unsigned char); | |
| 69 | ||
| 70 | JSString* m_emptyString; | |
| 71 | JSString* m_singleCharacterStrings[0x100]; | |
| 72 | OwnPtr<SmallStringsStorage> m_storage; | |
| 73 | }; | |
| 74 | ||
| 75 | } // namespace JSC | |
| 76 | ||
| 77 | #endif // SmallStrings_h |