/*
* (c) Copyright 2010-2011 AgileBirds
*
* This file is part of OpenFlexo.
*
* OpenFlexo is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenFlexo 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
*
*/
package org.openflexo.antar;
import java.util.Collection;
import java.util.Enumeration;
import java.util.Vector;
import java.util.logging.Logger;
import org.openflexo.logging.FlexoLogger;
public class Sequence extends ControlGraph {
private static final Logger logger = FlexoLogger.getLogger(Sequence.class.getPackage().getName());
private Vector<ControlGraph> statements;
public Sequence() {
super();
statements = new Vector<ControlGraph>();
}
public Sequence(Vector<ControlGraph> statements) {
this();
this.statements.addAll(statements);
}
public Vector<ControlGraph> getStatements() {
return statements;
}
public void setStatements(Vector<ControlGraph> statements) {
this.statements = statements;
}
public boolean addToStatements(ControlGraph o) {
return statements.add(o);
}
public void addStatement(int index, ControlGraph element) {
statements.add(index, element);
}
public ControlGraph statementAt(int index) {
return statements.elementAt(index);
}
public Enumeration<ControlGraph> elements() {
return statements.elements();
}
public ControlGraph firstStatement() {
return statements.firstElement();
}
public int indexOf(ControlGraph statement) {
return statements.indexOf(statement);
}
public void insertStatementAt(ControlGraph statement, int index) {
statements.insertElementAt(statement, index);
}
public ControlGraph lastStatement() {
return statements.lastElement();
}
public boolean remove(ControlGraph o) {
return statements.remove(o);
}
public void removeAllStatements() {
statements.removeAllElements();
}
public void removeStatementAt(int index) {
statements.removeElementAt(index);
}
public int size() {
return statements.size();
}
@Override
public String toString() {
StringBuffer sb = new StringBuffer();
for (ControlGraph statement : statements) {
sb.append(statement + " ;\n");
}
return sb.toString();
}
@Override
public final ControlGraph normalize() {
Vector<ControlGraph> normalizedList = new Vector<ControlGraph>();
for (ControlGraph statement : getStatements()) {
if (statement != null && !(statement instanceof Nop)) {
ControlGraph normalizedStatement = statement.normalize();
if (normalizedStatement instanceof Sequence) {
Vector<ControlGraph> listOfNormalizedStatements = new Vector<ControlGraph>();
for (ControlGraph s : ((Sequence) normalizedStatement).getStatements()) {
listOfNormalizedStatements.add(s.normalize());
}
if (normalizedStatement.getHeaderComment() != null) {
if (listOfNormalizedStatements.size() > 0) {
ControlGraph firstStatement = listOfNormalizedStatements.firstElement();
if (firstStatement.getHeaderComment() == null) {
firstStatement.setHeaderComment(normalizedStatement.getHeaderComment());
} else {
firstStatement.appendHeaderComment(normalizedStatement.getHeaderComment(), true);
}
} else {
logger.warning("Forgetting comment " + normalizedStatement.getHeaderComment() + ". Implement this.");
// TODO: implement header comment recovery in this case
}
normalizedStatement.setHeaderComment(null);
} else if (normalizedStatement.getInlineComment() != null) {
logger.warning("Forgetting comment " + normalizedStatement.getInlineComment() + ". Implement this.");
// TODO: implement inline comment recovery in this case
}
normalizedList.addAll(listOfNormalizedStatements);
} else {
normalizedList.add(normalizedStatement);
}
} else if (statement instanceof Nop && statement.hasComment()) {
normalizedList.add(statement);
}
}
ControlGraph returned;
if (normalizedList.size() == 0) {
returned = new Nop();
} else if (normalizedList.size() == 1) {
returned = normalizedList.firstElement();
} else {
returned = new Sequence(normalizedList);
}
returned.setInlineComment(getInlineComment());
returned.appendHeaderComment(getHeaderComment(), true);
return returned;
}
public boolean addAll(Collection<? extends ControlGraph> c) {
return statements.addAll(c);
}
}