1 /* 2 * Copyright (C) 2008 Apple Inc. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with this library; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 * 18 */ 19 20 #include "config.h" 21 #include "Lookup.h" 22 23 #include "Executable.h" 24 #include "JSFunction.h" 25 26 namespace JSC { 27 28 void HashTable::createTable(JSGlobalData* globalData) const 29 { 30 ASSERT(!table); 31 int linkIndex = compactHashSizeMask + 1; 32 HashEntry* entries = new HashEntry[compactSize]; 33 for (int i = 0; i < compactSize; ++i) 34 entries[i].setKey(0); 35 for (int i = 0; values[i].key; ++i) { 36 StringImpl* identifier = Identifier::add(globalData, values[i].key).leakRef(); 37 int hashIndex = identifier->existingHash() & compactHashSizeMask; 38 HashEntry* entry = &entries[hashIndex]; 39 40 if (entry->key()) { 41 while (entry->next()) { 42 entry = entry->next(); 43 } 44 ASSERT(linkIndex < compactSize); 45 entry->setNext(&entries[linkIndex++]); 46 entry = entry->next(); 47 } 48 49 entry->initialize(identifier, values[i].attributes, values[i].value1, values[i].value2 50 #if ENABLE(JIT) 51 , values[i].generator 52 #endif 53 ); 54 } 55 table = entries; 56 } 57 58 void HashTable::deleteTable() const 59 { 60 if (table) { 61 int max = compactSize; 62 for (int i = 0; i != max; ++i) { 63 if (StringImpl* key = table[i].key()) 64 key->deref(); 65 } 66 delete [] table; 67 table = 0; 68 } 69 } 70 71 void setUpStaticFunctionSlot(ExecState* exec, const HashEntry* entry, JSObject* thisObj, const Identifier& propertyName, PropertySlot& slot) 72 { 73 ASSERT(thisObj->structure()->anonymousSlotCount() > 0); 74 ASSERT(thisObj->getAnonymousValue(0).isCell() && asObject(thisObj->getAnonymousValue(0).asCell())->isGlobalObject()); 75 ASSERT(entry->attributes() & Function); 76 WriteBarrierBase<Unknown>* location = thisObj->getDirectLocation(exec->globalData(), propertyName); 77 78 if (!location) { 79 JSFunction* function; 80 JSGlobalObject* globalObject = asGlobalObject(thisObj->getAnonymousValue(0).asCell()); 81 #if ENABLE(JIT) && ENABLE(JIT_OPTIMIZE_NATIVE_CALL) 82 if (entry->generator()) 83 function = new (exec) JSFunction(exec, globalObject, globalObject->functionStructure(), entry->functionLength(), propertyName, exec->globalData().getHostFunction(entry->function(), entry->generator())); 84 else 85 #endif 86 function = new (exec) JSFunction(exec, globalObject, globalObject->functionStructure(), entry->functionLength(), propertyName, entry->function()); 87 88 thisObj->putDirectFunction(exec->globalData(), propertyName, function, entry->attributes()); 89 location = thisObj->getDirectLocation(exec->globalData(), propertyName); 90 } 91 92 slot.setValue(thisObj, location->get(), thisObj->offsetForLocation(location)); 93 } 94 95 } // namespace JSC 96
