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/*
* Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package vm.mlvm.tools;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.tree.LabeledStatementTree;
import com.sun.source.util.TreePathScanner;
import com.sun.source.util.Trees;
public class StratumAPTreeVisitor extends TreePathScanner<Object, Trees> {
public static final String LABEL_PREFIX = "Stratum_";
public static class StratumLineInfo implements Comparable<StratumLineInfo> {
String stratumName;
int stratumLineOrder;
String stratumLine;
int javaLineNum;
public StratumLineInfo(String stratumName, int stratumLineOrder, String stratumLine, int javaLineNum) {
this.stratumName = stratumName;
this.stratumLineOrder = stratumLineOrder;
this.stratumLine = stratumLine;
this.javaLineNum = javaLineNum;
}
public String getStratumName() {
return stratumName;
}
public int getStratumLineOrder() {
return stratumLineOrder;
}
public String getStratumSourceLine() {
return stratumLine;
}
public int getJavaLineNum() {
return javaLineNum;
}
@Override
public int compareTo(StratumLineInfo o) {
int i;
if ( (i = getStratumName().compareTo(o.getStratumName())) != 0 )
return i;
if ( (i = getStratumLineOrder() - o.getStratumLineOrder()) != 0 )
return i;
return 0;
}
@Override
public String toString() {
return getStratumName() + ":" + getStratumLineOrder()
+ " => Java:" + getJavaLineNum()
+ " [" + getStratumSourceLine() + "]";
}
}
public Map<String, Set<StratumLineInfo>> strata = new HashMap<String, Set<StratumLineInfo>>();
@Override
public Object visitLabeledStatement(LabeledStatementTree node, Trees p) {
processLabel(node, p);
return super.visitLabeledStatement(node, p);
}
private void processLabel(LabeledStatementTree node, Trees p) {
String label = node.getLabel().toString();
if ( ! label.startsWith(LABEL_PREFIX) )
return;
int stratumNameEndPos = label.indexOf('_', LABEL_PREFIX.length());
if ( stratumNameEndPos == -1 )
return;
String stratumName = label.substring(LABEL_PREFIX.length(), stratumNameEndPos);
int stratumLineEndPos = label.indexOf('_', stratumNameEndPos + 1);
if ( stratumLineEndPos == -1 )
return;
String stratumLineNumStr = label.substring(stratumNameEndPos + 1, stratumLineEndPos);
int stratumLineNum = Integer.parseInt(stratumLineNumStr);
String stratumLine = label.substring(stratumLineEndPos + 1);
CompilationUnitTree unit = getCurrentPath().getCompilationUnit();
int javaLineNum = (int) unit.getLineMap().getLineNumber(p.getSourcePositions().getStartPosition(unit, node));
Set<StratumLineInfo> stratumLines = this.strata.get(stratumName);
if ( stratumLines == null ) {
stratumLines = new TreeSet<StratumLineInfo>();
this.strata.put(stratumName, stratumLines);
}
stratumLines.add(new StratumLineInfo(stratumName, stratumLineNum, stratumLine, javaLineNum));
}
}
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