18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 2635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * Copyright (C) 2003, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * This library is free software; you can redistribute it and/or 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modify it under the terms of the GNU Library General Public 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * License as published by the Free Software Foundation; either 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * version 2 of the License, or (at your option) any later version. 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * This library is distributed in the hope that it will be useful, 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * but WITHOUT ANY WARRANTY; without even the implied warranty of 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Library General Public License for more details. 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * You should have received a copy of the GNU Library General Public License 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * along with this library; see the file COPYING.LIB. If not, write to 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Boston, MA 02110-1301, USA. 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#ifndef Identifier_h 22635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#define Identifier_h 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "JSGlobalData.h" 25d0825bca7fe65beaee391d30da42e937db621564Steve Block#include "ThreadSpecific.h" 26635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include "UString.h" 27f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick#include <wtf/text/CString.h> 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace JSC { 308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project class ExecState; 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project class Identifier { 34635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project friend class Structure; 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project public: 368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Identifier() { } 378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick Identifier(ExecState* exec, const char* s) : m_string(add(exec, s)) { } // Only to be used with string literals. 39f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick Identifier(ExecState* exec, const UChar* s, int length) : m_string(add(exec, s, length)) { } 40f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick Identifier(ExecState* exec, StringImpl* rep) : m_string(add(exec, rep)) { } 41f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick Identifier(ExecState* exec, const UString& s) : m_string(add(exec, s.impl())) { } 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick Identifier(JSGlobalData* globalData, const char* s) : m_string(add(globalData, s)) { } // Only to be used with string literals. 44f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick Identifier(JSGlobalData* globalData, const UChar* s, int length) : m_string(add(globalData, s, length)) { } 45f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick Identifier(JSGlobalData* globalData, StringImpl* rep) : m_string(add(globalData, rep)) { } 46f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick Identifier(JSGlobalData* globalData, const UString& s) : m_string(add(globalData, s.impl())) { } 478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick const UString& ustring() const { return m_string; } 49f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick StringImpl* impl() const { return m_string.impl(); } 508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick const UChar* characters() const { return m_string.characters(); } 52f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick int length() const { return m_string.length(); } 538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 54f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick CString ascii() const { return m_string.ascii(); } 558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 56dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block static Identifier from(ExecState* exec, unsigned y); 57dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block static Identifier from(ExecState* exec, int y); 58dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block static Identifier from(ExecState* exec, double y); 59545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch static Identifier from(JSGlobalData*, unsigned y); 60545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch static Identifier from(JSGlobalData*, int y); 61545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch static Identifier from(JSGlobalData*, double y); 62f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick 63f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static uint32_t toUInt32(const UString&, bool& ok); 64f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick uint32_t toUInt32(bool& ok) const { return toUInt32(m_string, ok); } 65f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick unsigned toArrayIndex(bool& ok) const; 66f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick 67f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick bool isNull() const { return m_string.isNull(); } 68f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick bool isEmpty() const { return m_string.isEmpty(); } 698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project friend bool operator==(const Identifier&, const Identifier&); 718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project friend bool operator!=(const Identifier&, const Identifier&); 728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project friend bool operator==(const Identifier&, const char*); 74635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project friend bool operator!=(const Identifier&, const char*); 758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 76f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static bool equal(const StringImpl*, const char*); 77f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static bool equal(const StringImpl*, const UChar*, unsigned length); 78f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static bool equal(const StringImpl* a, const StringImpl* b) { return ::equal(a, b); } 798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 80f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static PassRefPtr<StringImpl> add(ExecState*, const char*); // Only to be used with string literals. 81f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static PassRefPtr<StringImpl> add(JSGlobalData*, const char*); // Only to be used with string literals. 828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project private: 84f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick UString m_string; 858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 86f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static bool equal(const Identifier& a, const Identifier& b) { return a.m_string.impl() == b.m_string.impl(); } 87f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static bool equal(const Identifier& a, const char* b) { return equal(a.m_string.impl(), b); } 888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 89f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static PassRefPtr<StringImpl> add(ExecState*, const UChar*, int length); 90f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static PassRefPtr<StringImpl> add(JSGlobalData*, const UChar*, int length); 918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 92f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static PassRefPtr<StringImpl> add(ExecState* exec, StringImpl* r) 938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifndef NDEBUG 95dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block checkCurrentIdentifierTable(exec); 968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 97dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (r->isIdentifier()) 988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return r; 998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return addSlowCase(exec, r); 1008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 101f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static PassRefPtr<StringImpl> add(JSGlobalData* globalData, StringImpl* r) 1028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 1038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifndef NDEBUG 104dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block checkCurrentIdentifierTable(globalData); 1058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 106dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (r->isIdentifier()) 1078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return r; 1088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return addSlowCase(globalData, r); 1098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 111f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static PassRefPtr<StringImpl> addSlowCase(ExecState*, StringImpl* r); 112f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static PassRefPtr<StringImpl> addSlowCase(JSGlobalData*, StringImpl* r); 1138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 114dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block static void checkCurrentIdentifierTable(ExecState*); 115dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block static void checkCurrentIdentifierTable(JSGlobalData*); 1168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project }; 1178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inline bool operator==(const Identifier& a, const Identifier& b) 1198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 1208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return Identifier::equal(a, b); 1218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inline bool operator!=(const Identifier& a, const Identifier& b) 1248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 1258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return !Identifier::equal(a, b); 1268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inline bool operator==(const Identifier& a, const char* b) 1298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 1308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return Identifier::equal(a, b); 1318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 133635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project inline bool operator!=(const Identifier& a, const char* b) 134635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project { 135635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return !Identifier::equal(a, b); 136635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 137635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 1388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project IdentifierTable* createIdentifierTable(); 1398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project void deleteIdentifierTable(IdentifierTable*); 1408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 141f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick struct IdentifierRepHash : PtrHash<RefPtr<StringImpl> > { 142f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static unsigned hash(const RefPtr<StringImpl>& key) { return key->existingHash(); } 143f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static unsigned hash(StringImpl* key) { return key->existingHash(); } 144f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick }; 145f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick 1468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} // namespace JSC 1478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 148635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#endif // Identifier_h 149