1 /* 2 * Copyright (C) 2003, 2006, 2008 Apple Inc. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library 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 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21 #include "config.h" 22 #include "ScopeChain.h" 23 24 #include "JSActivation.h" 25 #include "JSGlobalObject.h" 26 #include "JSObject.h" 27 #include "PropertyNameArray.h" 28 #include <stdio.h> 29 30 namespace JSC { 31 32 #ifndef NDEBUG 33 34 void ScopeChainNode::print() 35 { 36 ScopeChainIterator scopeEnd = end(); 37 for (ScopeChainIterator scopeIter = begin(); scopeIter != scopeEnd; ++scopeIter) { 38 JSObject* o = scopeIter->get(); 39 PropertyNameArray propertyNames(globalObject->globalExec()); 40 o->getPropertyNames(globalObject->globalExec(), propertyNames); 41 PropertyNameArray::const_iterator propEnd = propertyNames.end(); 42 43 fprintf(stderr, "----- [scope %p] -----\n", o); 44 for (PropertyNameArray::const_iterator propIter = propertyNames.begin(); propIter != propEnd; propIter++) { 45 Identifier name = *propIter; 46 fprintf(stderr, "%s, ", name.ustring().utf8().data()); 47 } 48 fprintf(stderr, "\n"); 49 } 50 } 51 52 #endif 53 54 const ClassInfo ScopeChainNode::s_info = { "ScopeChainNode", 0, 0, 0 }; 55 56 int ScopeChainNode::localDepth() 57 { 58 int scopeDepth = 0; 59 ScopeChainIterator iter = this->begin(); 60 ScopeChainIterator end = this->end(); 61 while (!(*iter)->inherits(&JSActivation::s_info)) { 62 ++iter; 63 if (iter == end) 64 break; 65 ++scopeDepth; 66 } 67 return scopeDepth; 68 } 69 70 void ScopeChainNode::markChildren(MarkStack& markStack) 71 { 72 if (next) 73 markStack.append(&next); 74 markStack.append(&object); 75 markStack.append(&globalObject); 76 markStack.append(&globalThis); 77 } 78 79 } // namespace JSC 80
