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() const

    35 {

    36     ScopeChainIterator scopeEnd = end();

    37     for (ScopeChainIterator scopeIter = begin(); scopeIter != scopeEnd; ++scopeIter) {

    38         JSObject* o = *scopeIter;

    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.ascii());

    47         }

    48         fprintf(stderr, "\n");

    49     }

    50 }

    51 

    52 #endif

    53 

    54 int ScopeChain::localDepth() const

    55 {

    56     int scopeDepth = 0;

    57     ScopeChainIterator iter = this->begin();

    58     ScopeChainIterator end = this->end();

    59     while (!(*iter)->inherits(&JSActivation::info)) {

    60         ++iter;

    61         if (iter == end)

    62             break;

    63         ++scopeDepth;

    64     }

    65     return scopeDepth;

    66 }

    67 

    68 } // namespace JSC