// Transmogrify License
//
// Copyright (c) 2001, ThoughtWorks, Inc.
// All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// - Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// - Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// Neither the name of the ThoughtWorks, Inc. nor the names of its
// contributors may be used to endorse or promote products derived from this
// software without specific prior written permission.
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package com.puppycrawl.tools.checkstyle.checks.usage.transmogrify;
import java.util.ArrayList;
import java.util.List;
import java.util.ListIterator;
import com.puppycrawl.tools.checkstyle.api.TokenTypes;
/**
* This class is for counting the reference
*/
public class ReferenceCounter extends ReferenceTool {
private List _references = new ArrayList();
private List _resolvedReferences = new ArrayList();
private List _unresolvedReferences = new ArrayList();
public ReferenceCounter(SymbolTable table) {
super(table.getTree());
countReferences();
}
/**
* Return the number of references
*/
public int numberOfReferences() {
return _references.size();
}
/**
* Return the number of resolved references
*/
public int numberOfResolvedReferences() {
return _resolvedReferences.size();
}
public int numberOfUnresolvedReferences() {
return _unresolvedReferences.size();
}
public ListIterator getUnresolvedReferences() {
return _unresolvedReferences.listIterator();
}
private void countReferences() {
handleNode( _tree );
}
protected void handleNode( SymTabAST node ) {
if (node.getType() == TokenTypes.IDENT && node.isMeaningful()) {
_references.add( node );
if (node.getDefinition() != null && !(node.getDefinition() instanceof UnknownClass)) {
_resolvedReferences.add( node );
}
else {
_unresolvedReferences.add( node );
}
}
walkChildren( node );
}
}