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    • japa.parser.ast.visitor.DumpVisitor Maven / Gradle / Ivy

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    This package contains a Java 1.7 Parser with AST generation and visitor support. The AST records the source code structure, javadoc and comments. Soon will be possible change the AST nodes or create new ones to modify source code like refactoring. This parser is based on Sreenivasa Viswanadha Java 1.5 parser.

    There is a newer version: 1.0.9
    Show newest version
    /*
 * Copyright (C) 2007 Júlio Vilmar Gesser.
 * 
 * This file is part of Java 1.5 parser and Abstract Syntax Tree.
 *
 * Java 1.5 parser and Abstract Syntax Tree is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Java 1.5 parser and Abstract Syntax Tree 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Java 1.5 parser and Abstract Syntax Tree.  If not, see .
 */
/*
 * Created on 05/10/2006
 */
package japa.parser.ast.visitor;

import japa.parser.ast.BlockComment;
import japa.parser.ast.Comment;
import japa.parser.ast.CompilationUnit;
import japa.parser.ast.ImportDeclaration;
import japa.parser.ast.LineComment;
import japa.parser.ast.PackageDeclaration;
import japa.parser.ast.TypeParameter;
import japa.parser.ast.body.AnnotationDeclaration;
import japa.parser.ast.body.AnnotationMemberDeclaration;
import japa.parser.ast.body.BodyDeclaration;
import japa.parser.ast.body.ClassOrInterfaceDeclaration;
import japa.parser.ast.body.ConstructorDeclaration;
import japa.parser.ast.body.EmptyMemberDeclaration;
import japa.parser.ast.body.EmptyTypeDeclaration;
import japa.parser.ast.body.EnumConstantDeclaration;
import japa.parser.ast.body.EnumDeclaration;
import japa.parser.ast.body.FieldDeclaration;
import japa.parser.ast.body.InitializerDeclaration;
import japa.parser.ast.body.JavadocComment;
import japa.parser.ast.body.MethodDeclaration;
import japa.parser.ast.body.ModifierSet;
import japa.parser.ast.body.MultiTypeParameter;
import japa.parser.ast.body.Parameter;
import japa.parser.ast.body.TypeDeclaration;
import japa.parser.ast.body.VariableDeclarator;
import japa.parser.ast.body.VariableDeclaratorId;
import japa.parser.ast.expr.AnnotationExpr;
import japa.parser.ast.expr.ArrayAccessExpr;
import japa.parser.ast.expr.ArrayCreationExpr;
import japa.parser.ast.expr.ArrayInitializerExpr;
import japa.parser.ast.expr.AssignExpr;
import japa.parser.ast.expr.BinaryExpr;
import japa.parser.ast.expr.BooleanLiteralExpr;
import japa.parser.ast.expr.CastExpr;
import japa.parser.ast.expr.CharLiteralExpr;
import japa.parser.ast.expr.ClassExpr;
import japa.parser.ast.expr.ConditionalExpr;
import japa.parser.ast.expr.DoubleLiteralExpr;
import japa.parser.ast.expr.EnclosedExpr;
import japa.parser.ast.expr.Expression;
import japa.parser.ast.expr.FieldAccessExpr;
import japa.parser.ast.expr.InstanceOfExpr;
import japa.parser.ast.expr.IntegerLiteralExpr;
import japa.parser.ast.expr.IntegerLiteralMinValueExpr;
import japa.parser.ast.expr.LongLiteralExpr;
import japa.parser.ast.expr.LongLiteralMinValueExpr;
import japa.parser.ast.expr.MarkerAnnotationExpr;
import japa.parser.ast.expr.MemberValuePair;
import japa.parser.ast.expr.MethodCallExpr;
import japa.parser.ast.expr.NameExpr;
import japa.parser.ast.expr.NormalAnnotationExpr;
import japa.parser.ast.expr.NullLiteralExpr;
import japa.parser.ast.expr.ObjectCreationExpr;
import japa.parser.ast.expr.QualifiedNameExpr;
import japa.parser.ast.expr.SingleMemberAnnotationExpr;
import japa.parser.ast.expr.StringLiteralExpr;
import japa.parser.ast.expr.SuperExpr;
import japa.parser.ast.expr.ThisExpr;
import japa.parser.ast.expr.UnaryExpr;
import japa.parser.ast.expr.VariableDeclarationExpr;
import japa.parser.ast.stmt.AssertStmt;
import japa.parser.ast.stmt.BlockStmt;
import japa.parser.ast.stmt.BreakStmt;
import japa.parser.ast.stmt.CatchClause;
import japa.parser.ast.stmt.ContinueStmt;
import japa.parser.ast.stmt.DoStmt;
import japa.parser.ast.stmt.EmptyStmt;
import japa.parser.ast.stmt.ExplicitConstructorInvocationStmt;
import japa.parser.ast.stmt.ExpressionStmt;
import japa.parser.ast.stmt.ForStmt;
import japa.parser.ast.stmt.ForeachStmt;
import japa.parser.ast.stmt.IfStmt;
import japa.parser.ast.stmt.LabeledStmt;
import japa.parser.ast.stmt.ReturnStmt;
import japa.parser.ast.stmt.Statement;
import japa.parser.ast.stmt.SwitchEntryStmt;
import japa.parser.ast.stmt.SwitchStmt;
import japa.parser.ast.stmt.SynchronizedStmt;
import japa.parser.ast.stmt.ThrowStmt;
import japa.parser.ast.stmt.TryStmt;
import japa.parser.ast.stmt.TypeDeclarationStmt;
import japa.parser.ast.stmt.WhileStmt;
import japa.parser.ast.type.ClassOrInterfaceType;
import japa.parser.ast.type.PrimitiveType;
import japa.parser.ast.type.ReferenceType;
import japa.parser.ast.type.Type;
import japa.parser.ast.type.VoidType;
import japa.parser.ast.type.WildcardType;

import java.util.Iterator;
import java.util.List;

/**
 * Dumps the AST to formatted Java source code.
 * 
 * @author Julio Vilmar Gesser
 */
public final class DumpVisitor implements VoidVisitor {

	private static class SourcePrinter {

		private int level = 0;

		private boolean indented = false;

		private final StringBuilder buf = new StringBuilder();

		public void indent() {
			level++;
		}

		public void unindent() {
			level--;
		}

		private void makeIndent() {
			for (int i = 0; i < level; i++) {
				buf.append("    ");
			}
		}

		public void print(final String arg) {
			if (!indented) {
				makeIndent();
				indented = true;
			}
			buf.append(arg);
		}

		public void printLn(final String arg) {
			print(arg);
			printLn();
		}

		public void printLn() {
			buf.append("\n");
			indented = false;
		}

		public String getSource() {
			return buf.toString();
		}

		@Override public String toString() {
			return getSource();
		}
	}

	private final SourcePrinter printer = new SourcePrinter();

	public String getSource() {
		return printer.getSource();
	}

	private void printModifiers(final int modifiers) {
		if (ModifierSet.isPrivate(modifiers)) {
			printer.print("private ");
		}
		if (ModifierSet.isProtected(modifiers)) {
			printer.print("protected ");
		}
		if (ModifierSet.isPublic(modifiers)) {
			printer.print("public ");
		}
		if (ModifierSet.isAbstract(modifiers)) {
			printer.print("abstract ");
		}
		if (ModifierSet.isStatic(modifiers)) {
			printer.print("static ");
		}
		if (ModifierSet.isFinal(modifiers)) {
			printer.print("final ");
		}
		if (ModifierSet.isNative(modifiers)) {
			printer.print("native ");
		}
		if (ModifierSet.isStrictfp(modifiers)) {
			printer.print("strictfp ");
		}
		if (ModifierSet.isSynchronized(modifiers)) {
			printer.print("synchronized ");
		}
		if (ModifierSet.isTransient(modifiers)) {
			printer.print("transient ");
		}
		if (ModifierSet.isVolatile(modifiers)) {
			printer.print("volatile ");
		}
	}

	private void printMembers(final List members, final Object arg) {
		for (final BodyDeclaration member : members) {
			printer.printLn();
			member.accept(this, arg);
			printer.printLn();
		}
	}

	private void printMemberAnnotations(final List annotations, final Object arg) {
		if (annotations != null) {
			for (final AnnotationExpr a : annotations) {
				a.accept(this, arg);
				printer.printLn();
			}
		}
	}

	private void printAnnotations(final List annotations, final Object arg) {
		if (annotations != null) {
			for (final AnnotationExpr a : annotations) {
				a.accept(this, arg);
				printer.print(" ");
			}
		}
	}

	private void printTypeArgs(final List args, final Object arg) {
		if (args != null) {
			printer.print("<");
			for (final Iterator i = args.iterator(); i.hasNext();) {
				final Type t = i.next();
				t.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
			printer.print(">");
		}
	}

	private void printTypeParameters(final List args, final Object arg) {
		if (args != null) {
			printer.print("<");
			for (final Iterator i = args.iterator(); i.hasNext();) {
				final TypeParameter t = i.next();
				t.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
			printer.print(">");
		}
	}

	private void printArguments(final List args, final Object arg) {
		printer.print("(");
		if (args != null) {
			for (final Iterator i = args.iterator(); i.hasNext();) {
				final Expression e = i.next();
				e.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}
		printer.print(")");
	}

	private void printJavadoc(final JavadocComment javadoc, final Object arg) {
		if (javadoc != null) {
			javadoc.accept(this, arg);
		}
	}

	private void printJavaComment(final Comment javacomment, final Object arg) {
		if (javacomment != null) {
			javacomment.accept(this, arg);
		}
	}

	@Override public void visit(final CompilationUnit n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		if (n.getPackage() != null) {
			n.getPackage().accept(this, arg);
		}
		if (n.getImports() != null) {
			for (final ImportDeclaration i : n.getImports()) {
				i.accept(this, arg);
			}
			printer.printLn();
		}
		if (n.getTypes() != null) {
			for (final Iterator i = n.getTypes().iterator(); i.hasNext();) {
				i.next().accept(this, arg);
				printer.printLn();
				if (i.hasNext()) {
					printer.printLn();
				}
			}
		}
	}

	@Override public void visit(final PackageDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printAnnotations(n.getAnnotations(), arg);
		printer.print("package ");
		n.getName().accept(this, arg);
		printer.printLn(";");
		printer.printLn();
	}

	@Override public void visit(final NameExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(n.getName());
	}

	@Override public void visit(final QualifiedNameExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getQualifier().accept(this, arg);
		printer.print(".");
		printer.print(n.getName());
	}

	@Override public void visit(final ImportDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("import ");
		if (n.isStatic()) {
			printer.print("static ");
		}
		n.getName().accept(this, arg);
		if (n.isAsterisk()) {
			printer.print(".*");
		}
		printer.printLn(";");
	}

	@Override public void visit(final ClassOrInterfaceDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printJavadoc(n.getJavaDoc(), arg);
		printMemberAnnotations(n.getAnnotations(), arg);
		printModifiers(n.getModifiers());

		if (n.isInterface()) {
			printer.print("interface ");
		} else {
			printer.print("class ");
		}

		printer.print(n.getName());

		printTypeParameters(n.getTypeParameters(), arg);

		if (n.getExtends() != null) {
			printer.print(" extends ");
			for (final Iterator i = n.getExtends().iterator(); i.hasNext();) {
				final ClassOrInterfaceType c = i.next();
				c.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}

		if (n.getImplements() != null) {
			printer.print(" implements ");
			for (final Iterator i = n.getImplements().iterator(); i.hasNext();) {
				final ClassOrInterfaceType c = i.next();
				c.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}

		printer.printLn(" {");
		printer.indent();
		if (n.getMembers() != null) {
			printMembers(n.getMembers(), arg);
		}
		printer.unindent();
		printer.print("}");
	}

	@Override public void visit(final EmptyTypeDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printJavadoc(n.getJavaDoc(), arg);
		printer.print(";");
	}

	@Override public void visit(final JavadocComment n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("/**");
		printer.print(n.getContent());
		printer.printLn("*/");
	}

	@Override public void visit(final ClassOrInterfaceType n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		if (n.getScope() != null) {
			n.getScope().accept(this, arg);
			printer.print(".");
		}
		printer.print(n.getName());
		printTypeArgs(n.getTypeArgs(), arg);
	}

	@Override public void visit(final TypeParameter n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(n.getName());
		if (n.getTypeBound() != null) {
			printer.print(" extends ");
			for (final Iterator i = n.getTypeBound().iterator(); i.hasNext();) {
				final ClassOrInterfaceType c = i.next();
				c.accept(this, arg);
				if (i.hasNext()) {
					printer.print(" & ");
				}
			}
		}
	}

	@Override public void visit(final PrimitiveType n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		switch (n.getType()) {
		case Boolean:
			printer.print("boolean");
			break;
		case Byte:
			printer.print("byte");
			break;
		case Char:
			printer.print("char");
			break;
		case Double:
			printer.print("double");
			break;
		case Float:
			printer.print("float");
			break;
		case Int:
			printer.print("int");
			break;
		case Long:
			printer.print("long");
			break;
		case Short:
			printer.print("short");
			break;
		}
	}

	@Override public void visit(final ReferenceType n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getType().accept(this, arg);
		for (int i = 0; i < n.getArrayCount(); i++) {
			printer.print("[]");
		}
	}

	@Override public void visit(final WildcardType n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("?");
		if (n.getExtends() != null) {
			printer.print(" extends ");
			n.getExtends().accept(this, arg);
		}
		if (n.getSuper() != null) {
			printer.print(" super ");
			n.getSuper().accept(this, arg);
		}
	}

	@Override public void visit(final FieldDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printJavadoc(n.getJavaDoc(), arg);
		printMemberAnnotations(n.getAnnotations(), arg);
		printModifiers(n.getModifiers());
		n.getType().accept(this, arg);

		printer.print(" ");
		for (final Iterator i = n.getVariables().iterator(); i.hasNext();) {
			final VariableDeclarator var = i.next();
			var.accept(this, arg);
			if (i.hasNext()) {
				printer.print(", ");
			}
		}

		printer.print(";");
	}

	@Override public void visit(final VariableDeclarator n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getId().accept(this, arg);
		if (n.getInit() != null) {
			printer.print(" = ");
			n.getInit().accept(this, arg);
		}
	}

	@Override public void visit(final VariableDeclaratorId n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(n.getName());
		for (int i = 0; i < n.getArrayCount(); i++) {
			printer.print("[]");
		}
	}

	@Override public void visit(final ArrayInitializerExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("{");
		if (n.getValues() != null) {
			printer.print(" ");
			for (final Iterator i = n.getValues().iterator(); i.hasNext();) {
				final Expression expr = i.next();
				expr.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
			printer.print(" ");
		}
		printer.print("}");
	}

	@Override public void visit(final VoidType n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("void");
	}

	@Override public void visit(final ArrayAccessExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getName().accept(this, arg);
		printer.print("[");
		n.getIndex().accept(this, arg);
		printer.print("]");
	}

	@Override public void visit(final ArrayCreationExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("new ");
		n.getType().accept(this, arg);

		if (n.getDimensions() != null) {
			for (final Expression dim : n.getDimensions()) {
				printer.print("[");
				dim.accept(this, arg);
				printer.print("]");
			}
			for (int i = 0; i < n.getArrayCount(); i++) {
				printer.print("[]");
			}
		} else {
			for (int i = 0; i < n.getArrayCount(); i++) {
				printer.print("[]");
			}
			printer.print(" ");
			n.getInitializer().accept(this, arg);
		}
	}

	@Override public void visit(final AssignExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getTarget().accept(this, arg);
		printer.print(" ");
		switch (n.getOperator()) {
		case assign:
			printer.print("=");
			break;
		case and:
			printer.print("&=");
			break;
		case or:
			printer.print("|=");
			break;
		case xor:
			printer.print("^=");
			break;
		case plus:
			printer.print("+=");
			break;
		case minus:
			printer.print("-=");
			break;
		case rem:
			printer.print("%=");
			break;
		case slash:
			printer.print("/=");
			break;
		case star:
			printer.print("*=");
			break;
		case lShift:
			printer.print("<<=");
			break;
		case rSignedShift:
			printer.print(">>=");
			break;
		case rUnsignedShift:
			printer.print(">>>=");
			break;
		}
		printer.print(" ");
		n.getValue().accept(this, arg);
	}

	@Override public void visit(final BinaryExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getLeft().accept(this, arg);
		printer.print(" ");
		switch (n.getOperator()) {
		case or:
			printer.print("||");
			break;
		case and:
			printer.print("&&");
			break;
		case binOr:
			printer.print("|");
			break;
		case binAnd:
			printer.print("&");
			break;
		case xor:
			printer.print("^");
			break;
		case equals:
			printer.print("==");
			break;
		case notEquals:
			printer.print("!=");
			break;
		case less:
			printer.print("<");
			break;
		case greater:
			printer.print(">");
			break;
		case lessEquals:
			printer.print("<=");
			break;
		case greaterEquals:
			printer.print(">=");
			break;
		case lShift:
			printer.print("<<");
			break;
		case rSignedShift:
			printer.print(">>");
			break;
		case rUnsignedShift:
			printer.print(">>>");
			break;
		case plus:
			printer.print("+");
			break;
		case minus:
			printer.print("-");
			break;
		case times:
			printer.print("*");
			break;
		case divide:
			printer.print("/");
			break;
		case remainder:
			printer.print("%");
			break;
		}
		printer.print(" ");
		n.getRight().accept(this, arg);
	}

	@Override public void visit(final CastExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("(");
		n.getType().accept(this, arg);
		printer.print(") ");
		n.getExpr().accept(this, arg);
	}

	@Override public void visit(final ClassExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getType().accept(this, arg);
		printer.print(".class");
	}

	@Override public void visit(final ConditionalExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getCondition().accept(this, arg);
		printer.print(" ? ");
		n.getThenExpr().accept(this, arg);
		printer.print(" : ");
		n.getElseExpr().accept(this, arg);
	}

	@Override public void visit(final EnclosedExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("(");
		n.getInner().accept(this, arg);
		printer.print(")");
	}

	@Override public void visit(final FieldAccessExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getScope().accept(this, arg);
		printer.print(".");
		printer.print(n.getField());
	}

	@Override public void visit(final InstanceOfExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getExpr().accept(this, arg);
		printer.print(" instanceof ");
		n.getType().accept(this, arg);
	}

	@Override public void visit(final CharLiteralExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("'");
		printer.print(n.getValue());
		printer.print("'");
	}

	@Override public void visit(final DoubleLiteralExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(n.getValue());
	}

	@Override public void visit(final IntegerLiteralExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(n.getValue());
	}

	@Override public void visit(final LongLiteralExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(n.getValue());
	}

	@Override public void visit(final IntegerLiteralMinValueExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(n.getValue());
	}

	@Override public void visit(final LongLiteralMinValueExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(n.getValue());
	}

	@Override public void visit(final StringLiteralExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("\"");
		printer.print(n.getValue());
		printer.print("\"");
	}

	@Override public void visit(final BooleanLiteralExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(String.valueOf(n.getValue()));
	}

	@Override public void visit(final NullLiteralExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("null");
	}

	@Override public void visit(final ThisExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		if (n.getClassExpr() != null) {
			n.getClassExpr().accept(this, arg);
			printer.print(".");
		}
		printer.print("this");
	}

	@Override public void visit(final SuperExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		if (n.getClassExpr() != null) {
			n.getClassExpr().accept(this, arg);
			printer.print(".");
		}
		printer.print("super");
	}

	@Override public void visit(final MethodCallExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		if (n.getScope() != null) {
			n.getScope().accept(this, arg);
			printer.print(".");
		}
		printTypeArgs(n.getTypeArgs(), arg);
		printer.print(n.getName());
		printArguments(n.getArgs(), arg);
	}

	@Override public void visit(final ObjectCreationExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		if (n.getScope() != null) {
			n.getScope().accept(this, arg);
			printer.print(".");
		}

		printer.print("new ");

		printTypeArgs(n.getTypeArgs(), arg);
		n.getType().accept(this, arg);

		printArguments(n.getArgs(), arg);

		if (n.getAnonymousClassBody() != null) {
			printer.printLn(" {");
			printer.indent();
			printMembers(n.getAnonymousClassBody(), arg);
			printer.unindent();
			printer.print("}");
		}
	}

	@Override public void visit(final UnaryExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		switch (n.getOperator()) {
		case positive:
			printer.print("+");
			break;
		case negative:
			printer.print("-");
			break;
		case inverse:
			printer.print("~");
			break;
		case not:
			printer.print("!");
			break;
		case preIncrement:
			printer.print("++");
			break;
		case preDecrement:
			printer.print("--");
			break;
		}

		n.getExpr().accept(this, arg);

		switch (n.getOperator()) {
		case posIncrement:
			printer.print("++");
			break;
		case posDecrement:
			printer.print("--");
			break;
		}
	}

	@Override public void visit(final ConstructorDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printJavadoc(n.getJavaDoc(), arg);
		printMemberAnnotations(n.getAnnotations(), arg);
		printModifiers(n.getModifiers());

		printTypeParameters(n.getTypeParameters(), arg);
		if (n.getTypeParameters() != null) {
			printer.print(" ");
		}
		printer.print(n.getName());

		printer.print("(");
		if (n.getParameters() != null) {
			for (final Iterator i = n.getParameters().iterator(); i.hasNext();) {
				final Parameter p = i.next();
				p.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}
		printer.print(")");

		if (n.getThrows() != null) {
			printer.print(" throws ");
			for (final Iterator i = n.getThrows().iterator(); i.hasNext();) {
				final NameExpr name = i.next();
				name.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}
		printer.print(" ");
		n.getBlock().accept(this, arg);
	}

	@Override public void visit(final MethodDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printJavadoc(n.getJavaDoc(), arg);
		printMemberAnnotations(n.getAnnotations(), arg);
		printModifiers(n.getModifiers());

		printTypeParameters(n.getTypeParameters(), arg);
		if (n.getTypeParameters() != null) {
			printer.print(" ");
		}

		n.getType().accept(this, arg);
		printer.print(" ");
		printer.print(n.getName());

		printer.print("(");
		if (n.getParameters() != null) {
			for (final Iterator i = n.getParameters().iterator(); i.hasNext();) {
				final Parameter p = i.next();
				p.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}
		printer.print(")");

		for (int i = 0; i < n.getArrayCount(); i++) {
			printer.print("[]");
		}

		if (n.getThrows() != null) {
			printer.print(" throws ");
			for (final Iterator i = n.getThrows().iterator(); i.hasNext();) {
				final NameExpr name = i.next();
				name.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}
		if (n.getBody() == null) {
			printer.print(";");
		} else {
			printer.print(" ");
			n.getBody().accept(this, arg);
		}
	}

	@Override public void visit(final Parameter n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printAnnotations(n.getAnnotations(), arg);
		printModifiers(n.getModifiers());

		n.getType().accept(this, arg);
		if (n.isVarArgs()) {
			printer.print("...");
		}
		printer.print(" ");
		n.getId().accept(this, arg);
	}
	
    public void visit(MultiTypeParameter n, Object arg) {
        printAnnotations(n.getAnnotations(), arg);
        printModifiers(n.getModifiers());

        Iterator types = n.getTypes().iterator();
        types.next().accept(this, arg);
        while (types.hasNext()) {
        	printer.print(" | ");
        	types.next().accept(this, arg);
        }
        
        printer.print(" ");
        n.getId().accept(this, arg);
    }

	@Override public void visit(final ExplicitConstructorInvocationStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		if (n.isThis()) {
			printTypeArgs(n.getTypeArgs(), arg);
			printer.print("this");
		} else {
			if (n.getExpr() != null) {
				n.getExpr().accept(this, arg);
				printer.print(".");
			}
			printTypeArgs(n.getTypeArgs(), arg);
			printer.print("super");
		}
		printArguments(n.getArgs(), arg);
		printer.print(";");
	}

	@Override public void visit(final VariableDeclarationExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printAnnotations(n.getAnnotations(), arg);
		printModifiers(n.getModifiers());

		n.getType().accept(this, arg);
		printer.print(" ");

		for (final Iterator i = n.getVars().iterator(); i.hasNext();) {
			final VariableDeclarator v = i.next();
			v.accept(this, arg);
			if (i.hasNext()) {
				printer.print(", ");
			}
		}
	}

	@Override public void visit(final TypeDeclarationStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getTypeDeclaration().accept(this, arg);
	}

	@Override public void visit(final AssertStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("assert ");
		n.getCheck().accept(this, arg);
		if (n.getMessage() != null) {
			printer.print(" : ");
			n.getMessage().accept(this, arg);
		}
		printer.print(";");
	}

	@Override public void visit(final BlockStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.printLn("{");
		if (n.getStmts() != null) {
			printer.indent();
			for (final Statement s : n.getStmts()) {
				s.accept(this, arg);
				printer.printLn();
			}
			printer.unindent();
		}
		printer.print("}");

	}

	@Override public void visit(final LabeledStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(n.getLabel());
		printer.print(": ");
		n.getStmt().accept(this, arg);
	}

	@Override public void visit(final EmptyStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(";");
	}

	@Override public void visit(final ExpressionStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		n.getExpression().accept(this, arg);
		printer.print(";");
	}

	@Override public void visit(final SwitchStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("switch(");
		n.getSelector().accept(this, arg);
		printer.printLn(") {");
		if (n.getEntries() != null) {
			printer.indent();
			for (final SwitchEntryStmt e : n.getEntries()) {
				e.accept(this, arg);
			}
			printer.unindent();
		}
		printer.print("}");

	}

	@Override public void visit(final SwitchEntryStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		if (n.getLabel() != null) {
			printer.print("case ");
			n.getLabel().accept(this, arg);
			printer.print(":");
		} else {
			printer.print("default:");
		}
		printer.printLn();
		printer.indent();
		if (n.getStmts() != null) {
			for (final Statement s : n.getStmts()) {
				s.accept(this, arg);
				printer.printLn();
			}
		}
		printer.unindent();
	}

	@Override public void visit(final BreakStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("break");
		if (n.getId() != null) {
			printer.print(" ");
			printer.print(n.getId());
		}
		printer.print(";");
	}

	@Override public void visit(final ReturnStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("return");
		if (n.getExpr() != null) {
			printer.print(" ");
			n.getExpr().accept(this, arg);
		}
		printer.print(";");
	}

	@Override public void visit(final EnumDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printJavadoc(n.getJavaDoc(), arg);
		printMemberAnnotations(n.getAnnotations(), arg);
		printModifiers(n.getModifiers());

		printer.print("enum ");
		printer.print(n.getName());

		if (n.getImplements() != null) {
			printer.print(" implements ");
			for (final Iterator i = n.getImplements().iterator(); i.hasNext();) {
				final ClassOrInterfaceType c = i.next();
				c.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}

		printer.printLn(" {");
		printer.indent();
		if (n.getEntries() != null) {
			printer.printLn();
			for (final Iterator i = n.getEntries().iterator(); i.hasNext();) {
				final EnumConstantDeclaration e = i.next();
				e.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}
		if (n.getMembers() != null) {
			printer.printLn(";");
			printMembers(n.getMembers(), arg);
		} else {
			if (n.getEntries() != null) {
				printer.printLn();
			}
		}
		printer.unindent();
		printer.print("}");
	}

	@Override public void visit(final EnumConstantDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printJavadoc(n.getJavaDoc(), arg);
		printMemberAnnotations(n.getAnnotations(), arg);
		printer.print(n.getName());

		if (n.getArgs() != null) {
			printArguments(n.getArgs(), arg);
		}

		if (n.getClassBody() != null) {
			printer.printLn(" {");
			printer.indent();
			printMembers(n.getClassBody(), arg);
			printer.unindent();
			printer.printLn("}");
		}
	}

	@Override public void visit(final EmptyMemberDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printJavadoc(n.getJavaDoc(), arg);
		printer.print(";");
	}

	@Override public void visit(final InitializerDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printJavadoc(n.getJavaDoc(), arg);
		if (n.isStatic()) {
			printer.print("static ");
		}
		n.getBlock().accept(this, arg);
	}

	@Override public void visit(final IfStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("if (");
		n.getCondition().accept(this, arg);
		final boolean thenBlock = n.getThenStmt() instanceof BlockStmt;
		if (thenBlock) // block statement should start on the same line
			printer.print(") ");
		else {
			printer.printLn(")");
			printer.indent();
		}
		n.getThenStmt().accept(this, arg);
		if (!thenBlock)
			printer.unindent();
		if (n.getElseStmt() != null) {
			if (thenBlock)
				printer.print(" ");
			else
				printer.printLn();
			final boolean elseIf = n.getElseStmt() instanceof IfStmt;
			final boolean elseBlock = n.getElseStmt() instanceof BlockStmt;
			if (elseIf || elseBlock) // put chained if and start of block statement on a same level
				printer.print("else ");
			else {
				printer.printLn("else");
				printer.indent();
			}
			n.getElseStmt().accept(this, arg);
			if (!(elseIf || elseBlock))
				printer.unindent();
		}
	}

	@Override public void visit(final WhileStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("while (");
		n.getCondition().accept(this, arg);
		printer.print(") ");
		n.getBody().accept(this, arg);
	}

	@Override public void visit(final ContinueStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("continue");
		if (n.getId() != null) {
			printer.print(" ");
			printer.print(n.getId());
		}
		printer.print(";");
	}

	@Override public void visit(final DoStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("do ");
		n.getBody().accept(this, arg);
		printer.print(" while (");
		n.getCondition().accept(this, arg);
		printer.print(");");
	}

	@Override public void visit(final ForeachStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("for (");
		n.getVariable().accept(this, arg);
		printer.print(" : ");
		n.getIterable().accept(this, arg);
		printer.print(") ");
		n.getBody().accept(this, arg);
	}

	@Override public void visit(final ForStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("for (");
		if (n.getInit() != null) {
			for (final Iterator i = n.getInit().iterator(); i.hasNext();) {
				final Expression e = i.next();
				e.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}
		printer.print("; ");
		if (n.getCompare() != null) {
			n.getCompare().accept(this, arg);
		}
		printer.print("; ");
		if (n.getUpdate() != null) {
			for (final Iterator i = n.getUpdate().iterator(); i.hasNext();) {
				final Expression e = i.next();
				e.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}
		printer.print(") ");
		n.getBody().accept(this, arg);
	}

	@Override public void visit(final ThrowStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("throw ");
		n.getExpr().accept(this, arg);
		printer.print(";");
	}

	@Override public void visit(final SynchronizedStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("synchronized (");
		n.getExpr().accept(this, arg);
		printer.print(") ");
		n.getBlock().accept(this, arg);
	}

	@Override public void visit(final TryStmt n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("try ");
		if (!n.getResources().isEmpty()) {
			printer.print("(");
			Iterator resources = n.getResources().iterator();
			boolean first = true;
			while (resources.hasNext()) {
				visit(resources.next(), arg);
				if (resources.hasNext()) {
					printer.print(";");
					printer.printLn();
					if (first) {
						printer.indent();
					}
				}
				first = false;
			}
			if (n.getResources().size() > 1) {
				printer.unindent();
			}
			printer.print(") ");
		}
		n.getTryBlock().accept(this, arg);
		if (n.getCatchs() != null) {
			for (final CatchClause c : n.getCatchs()) {
				c.accept(this, arg);
			}
		}
		if (n.getFinallyBlock() != null) {
			printer.print(" finally ");
			n.getFinallyBlock().accept(this, arg);
		}
	}

	@Override public void visit(final CatchClause n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(" catch (");
		n.getExcept().accept(this, arg);
		printer.print(") ");
		n.getCatchBlock().accept(this, arg);

	}

	@Override public void visit(final AnnotationDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printJavadoc(n.getJavaDoc(), arg);
		printMemberAnnotations(n.getAnnotations(), arg);
		printModifiers(n.getModifiers());

		printer.print("@interface ");
		printer.print(n.getName());
		printer.printLn(" {");
		printer.indent();
		if (n.getMembers() != null) {
			printMembers(n.getMembers(), arg);
		}
		printer.unindent();
		printer.print("}");
	}

	@Override public void visit(final AnnotationMemberDeclaration n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printJavadoc(n.getJavaDoc(), arg);
		printMemberAnnotations(n.getAnnotations(), arg);
		printModifiers(n.getModifiers());

		n.getType().accept(this, arg);
		printer.print(" ");
		printer.print(n.getName());
		printer.print("()");
		if (n.getDefaultValue() != null) {
			printer.print(" default ");
			n.getDefaultValue().accept(this, arg);
		}
		printer.print(";");
	}

	@Override public void visit(final MarkerAnnotationExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("@");
		n.getName().accept(this, arg);
	}

	@Override public void visit(final SingleMemberAnnotationExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("@");
		n.getName().accept(this, arg);
		printer.print("(");
		n.getMemberValue().accept(this, arg);
		printer.print(")");
	}

	@Override public void visit(final NormalAnnotationExpr n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("@");
		n.getName().accept(this, arg);
		printer.print("(");
		if (n.getPairs() != null) {
			for (final Iterator i = n.getPairs().iterator(); i.hasNext();) {
				final MemberValuePair m = i.next();
				m.accept(this, arg);
				if (i.hasNext()) {
					printer.print(", ");
				}
			}
		}
		printer.print(")");
	}

	@Override public void visit(final MemberValuePair n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print(n.getName());
		printer.print(" = ");
		n.getValue().accept(this, arg);
	}

	@Override public void visit(final LineComment n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("//");
		String tmp = n.getContent();
		tmp = tmp.replace('\r', ' ');
		tmp = tmp.replace('\n', ' ');
		printer.printLn(tmp);
	}

	@Override public void visit(final BlockComment n, final Object arg) {
		printJavaComment(n.getComment(), arg);
		printer.print("/*");
		printer.print(n.getContent());
		printer.printLn("*/");
	}

}
    
    
    
    

    




    
    
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