Copyright (c) 2000, 2019 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2000, 2019 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.corext.dom;

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

import org.eclipse.core.runtime.Assert;

import org.eclipse.jdt.core.dom.*;

public class ASTFlattener extends GenericVisitor {
/*
 * XXX: Keep in sync with org.eclipse.jdt.internal.core.dom.NaiveASTFlattener:
 * Rename NaiveASTFlattener#buffer to fBuffer, compare with this class, focus on structural changes
 */

	
Deprecated:
to avoid deprecation warnings/**
	 * @deprecated to avoid deprecation warnings
	 */
	@Deprecated
	private static final int JLS3= AST.JLS3;
	
Deprecated:
to avoid deprecation warnings/**
	 * @deprecated to avoid deprecation warnings
	 */
	@Deprecated
	private static final int JLS4= AST.JLS4;
	
Deprecated:
to avoid deprecation warnings/**
	 * @deprecated to avoid deprecation warnings
	 */
	@Deprecated
	private static final int JLS8= AST.JLS8;
	
Deprecated:
to avoid deprecation warnings/**
	 * @deprecated to avoid deprecation warnings
	 */
	@Deprecated
	private static final int JLS9= AST.JLS9;

	
The string buffer into which the serialized representation of the AST is
written.
/**
	 * The string buffer into which the serialized representation of the AST is
	 * written.
	 */
	protected StringBuffer fBuffer;

	
Creates a new AST printer.
/**
	 * Creates a new AST printer.
	 */
	public ASTFlattener() {
		this.fBuffer= new StringBuffer();
	}

	
Returns the string accumulated in the visit.
Returns:
the serialized/**
	 * Returns the string accumulated in the visit.
	 *
	 * @return the serialized
	 */
	public String getResult() {
		return this.fBuffer.toString();
	}

	
Resets this printer so that it can be used again.
/**
	 * Resets this printer so that it can be used again.
	 */
	public void reset() {
		this.fBuffer.setLength(0);
	}

	public static String asString(ASTNode node) {
		Assert.isTrue(node.getAST().apiLevel() == IASTSharedValues.SHARED_AST_LEVEL);

		ASTFlattener flattener= new ASTFlattener();
		node.accept(flattener);
		return flattener.getResult();
	}


	@Override
	protected boolean visitNode(ASTNode node) {
		Assert.isTrue(false, "No implementation to flatten node: " + node.toString()); //$NON-NLS-1$
		return false;
	}

	
Appends the text representation of the given modifier flags, followed by a single space.
Used for 3.0 modifiers and annotations.
Params:
ext – the list of modifier and annotation nodes
(element type: IExtendedModifier)/**
	 * Appends the text representation of the given modifier flags, followed by a single space.
	 * Used for 3.0 modifiers and annotations.
	 *
	 * @param ext the list of modifier and annotation nodes
	 * (element type: <code>IExtendedModifier</code>)
	 */
	private void printModifiers(List<IExtendedModifier> ext) {
		for (Iterator<IExtendedModifier> it= ext.iterator(); it.hasNext();) {
			ASTNode p= (ASTNode) it.next();
			p.accept(this);
			this.fBuffer.append(" ");//$NON-NLS-1$
		}
	}

	private void printTypes(List<Type> types, String prefix) {
		if (types.size() > 0) {
			this.fBuffer.append(" " + prefix + " ");//$NON-NLS-1$ //$NON-NLS-2$
			Type type = types.get(0);
			type.accept(this);
			for (int i = 1, l = types.size(); i < l; ++i) {
				this.fBuffer.append(","); //$NON-NLS-1$
				type = types.get(0);
				type.accept(this);
			}
		}
	}

	private void printReferenceTypeArguments(List<Type> typeArguments) {
		this.fBuffer.append("::");//$NON-NLS-1$
		if (!typeArguments.isEmpty()) {
			this.fBuffer.append('<');
			for (Iterator<Type> it = typeArguments.iterator(); it.hasNext(); ) {
				Type t = it.next();
				t.accept(this);
				if (it.hasNext()) {
					this.fBuffer.append(',');
				}
			}
			this.fBuffer.append('>');
		}
	}
	
	void printTypeAnnotations(AnnotatableType node) {
		if (node.getAST().apiLevel() >= JLS8) {
			printAnnotationsList(node.annotations());
		}
	}

	void printAnnotationsList(List<? extends Annotation> annotations) {
		for (Iterator<? extends Annotation> it = annotations.iterator(); it.hasNext(); ) {
			Annotation annotation = it.next();
			annotation.accept(this);
			this.fBuffer.append(' ');
		}
	}

	
Params:
node – node
Returns:
component type
Deprecated:
to avoid deprecation warning/**
	 * @param node node
	 * @return component type
	 * @deprecated to avoid deprecation warning
	 */
	@Deprecated
	private static Type getComponentType(ArrayType node) {
		return node.getComponentType();
	}

	
Params:
node – node
Returns:
thrown exception names
Deprecated:
to avoid deprecation warning/**
	 * @param node node
	 * @return thrown exception names
	 * @deprecated to avoid deprecation warning
	 */
	@Deprecated
	private static List<Name> getThrownExceptions(MethodDeclaration node) {
		return node.thrownExceptions();
	}

	/*
	 * @see ASTVisitor#visit(AnnotationTypeDeclaration)
	 * @since 3.0
	 */
	@Override
	public boolean visit(AnnotationTypeDeclaration node) {
		if (node.getJavadoc() != null) {
			node.getJavadoc().accept(this);
		}
		printModifiers(node.modifiers());
		this.fBuffer.append("@interface ");//$NON-NLS-1$
		node.getName().accept(this);
		this.fBuffer.append(" {");//$NON-NLS-1$
		for (Iterator<BodyDeclaration> it= node.bodyDeclarations().iterator(); it.hasNext();) {
			BodyDeclaration d= it.next();
			d.accept(this);
		}
		this.fBuffer.append("}");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(AnnotationTypeMemberDeclaration)
	 * @since 3.0
	 */
	@Override
	public boolean visit(AnnotationTypeMemberDeclaration node) {
		if (node.getJavadoc() != null) {
			node.getJavadoc().accept(this);
		}
		printModifiers(node.modifiers());
		node.getType().accept(this);
		this.fBuffer.append(" ");//$NON-NLS-1$
		node.getName().accept(this);
		this.fBuffer.append("()");//$NON-NLS-1$
		if (node.getDefault() != null) {
			this.fBuffer.append(" default ");//$NON-NLS-1$
			node.getDefault().accept(this);
		}
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(AnonymousClassDeclaration)
	 */
	@Override
	public boolean visit(AnonymousClassDeclaration node) {
		this.fBuffer.append("{");//$NON-NLS-1$
		List<BodyDeclaration> bodyDeclarations= node.bodyDeclarations();
		for (Iterator<BodyDeclaration> it= bodyDeclarations.iterator(); it.hasNext();) {
			BodyDeclaration b= it.next();
			b.accept(this);
		}
		this.fBuffer.append("}");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ArrayAccess)
	 */
	@Override
	public boolean visit(ArrayAccess node) {
		node.getArray().accept(this);
		this.fBuffer.append("[");//$NON-NLS-1$
		node.getIndex().accept(this);
		this.fBuffer.append("]");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ArrayCreation)
	 */
	@Override
	public boolean visit(ArrayCreation node) {
		this.fBuffer.append("new ");//$NON-NLS-1$
		ArrayType at= node.getType();
		int dims= at.getDimensions();
		Type elementType= at.getElementType();
		elementType.accept(this);
		for (Iterator<Expression> it= node.dimensions().iterator(); it.hasNext();) {
			this.fBuffer.append("[");//$NON-NLS-1$
			Expression e= it.next();
			e.accept(this);
			this.fBuffer.append("]");//$NON-NLS-1$
			dims--;
		}
		// add empty "[]" for each extra array dimension
		for (int i= 0; i < dims; i++) {
			this.fBuffer.append("[]");//$NON-NLS-1$
		}
		if (node.getInitializer() != null) {
			node.getInitializer().accept(this);
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ArrayInitializer)
	 */
	@Override
	public boolean visit(ArrayInitializer node) {
		this.fBuffer.append("{");//$NON-NLS-1$
		for (Iterator<Expression> it= node.expressions().iterator(); it.hasNext();) {
			Expression e= it.next();
			e.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(",");//$NON-NLS-1$
			}
		}
		this.fBuffer.append("}");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ArrayType)
	 */
	@Override
	public boolean visit(ArrayType node) {
		if (node.getAST().apiLevel() < JLS8) {
			getComponentType(node).accept(this);
			this.fBuffer.append("[]");//$NON-NLS-1$
		} else {
			node.getElementType().accept(this);
			List<Dimension> dimensions = node.dimensions();
			for (int i = 0; i < dimensions.size() ; i++) {
				Dimension dimension = dimensions.get(i);
				dimension.accept(this);
			}
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(AssertStatement)
	 */
	@Override
	public boolean visit(AssertStatement node) {
		this.fBuffer.append("assert ");//$NON-NLS-1$
		node.getExpression().accept(this);
		if (node.getMessage() != null) {
			this.fBuffer.append(" : ");//$NON-NLS-1$
			node.getMessage().accept(this);
		}
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(Assignment)
	 */
	@Override
	public boolean visit(Assignment node) {
		node.getLeftHandSide().accept(this);
		this.fBuffer.append(node.getOperator().toString());
		node.getRightHandSide().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(Block)
	 */
	@Override
	public boolean visit(Block node) {
		this.fBuffer.append("{");//$NON-NLS-1$
		for (Iterator<Statement> it= node.statements().iterator(); it.hasNext();) {
			Statement s= it.next();
			s.accept(this);
		}
		this.fBuffer.append("}");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(BlockComment)
	 * @since 3.0
	 */
	@Override
	public boolean visit(BlockComment node) {
		this.fBuffer.append("/* */");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(BooleanLiteral)
	 */
	@Override
	public boolean visit(BooleanLiteral node) {
		if (node.booleanValue() == true) {
			this.fBuffer.append("true");//$NON-NLS-1$
		} else {
			this.fBuffer.append("false");//$NON-NLS-1$
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(BreakStatement)
	 */
	@Override
	public boolean visit(BreakStatement node) {
		this.fBuffer.append("break");//$NON-NLS-1$
		if (node.getLabel() != null) {
			this.fBuffer.append(" ");//$NON-NLS-1$
			node.getLabel().accept(this);
		}
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(CastExpression)
	 */
	@Override
	public boolean visit(CastExpression node) {
		this.fBuffer.append("(");//$NON-NLS-1$
		node.getType().accept(this);
		this.fBuffer.append(")");//$NON-NLS-1$
		node.getExpression().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(CatchClause)
	 */
	@Override
	public boolean visit(CatchClause node) {
		this.fBuffer.append("catch (");//$NON-NLS-1$
		node.getException().accept(this);
		this.fBuffer.append(") ");//$NON-NLS-1$
		node.getBody().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(CharacterLiteral)
	 */
	@Override
	public boolean visit(CharacterLiteral node) {
		this.fBuffer.append(node.getEscapedValue());
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ClassInstanceCreation)
	 */
	@Override
	public boolean visit(ClassInstanceCreation node) {
		if (node.getExpression() != null) {
			node.getExpression().accept(this);
			this.fBuffer.append(".");//$NON-NLS-1$
		}
		this.fBuffer.append("new ");//$NON-NLS-1$
		if (node.getAST().apiLevel() >= JLS3) {
			if (!node.typeArguments().isEmpty()) {
				this.fBuffer.append("<");//$NON-NLS-1$
				for (Iterator<Type> it= node.typeArguments().iterator(); it.hasNext();) {
					Type t= it.next();
					t.accept(this);
					if (it.hasNext()) {
						this.fBuffer.append(",");//$NON-NLS-1$
					}
				}
				this.fBuffer.append(">");//$NON-NLS-1$
			}
			node.getType().accept(this);
		}
		this.fBuffer.append("(");//$NON-NLS-1$
		for (Iterator<Expression> it= node.arguments().iterator(); it.hasNext();) {
			Expression e= it.next();
			e.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(",");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(")");//$NON-NLS-1$
		if (node.getAnonymousClassDeclaration() != null) {
			node.getAnonymousClassDeclaration().accept(this);
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(CompilationUnit)
	 */
	@Override
	public boolean visit(CompilationUnit node) {
		if (node.getAST().apiLevel() >= JLS9) {
			if (node.getModule() != null) {
				node.getModule().accept(this);
			}
		}
		if (node.getPackage() != null) {
			node.getPackage().accept(this);
		}
		for (Iterator<ImportDeclaration> it= node.imports().iterator(); it.hasNext();) {
			ImportDeclaration d= it.next();
			d.accept(this);
		}
		for (Iterator<AbstractTypeDeclaration> it= node.types().iterator(); it.hasNext();) {
			AbstractTypeDeclaration d= it.next();
			d.accept(this);
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ConditionalExpression)
	 */
	@Override
	public boolean visit(ConditionalExpression node) {
		node.getExpression().accept(this);
		this.fBuffer.append("?");//$NON-NLS-1$
		node.getThenExpression().accept(this);
		this.fBuffer.append(":");//$NON-NLS-1$
		node.getElseExpression().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ConstructorInvocation)
	 */
	@Override
	public boolean visit(ConstructorInvocation node) {
		if (node.getAST().apiLevel() >= JLS3) {
			if (!node.typeArguments().isEmpty()) {
				this.fBuffer.append("<");//$NON-NLS-1$
				for (Iterator<Type> it= node.typeArguments().iterator(); it.hasNext();) {
					Type t= it.next();
					t.accept(this);
					if (it.hasNext()) {
						this.fBuffer.append(",");//$NON-NLS-1$
					}
				}
				this.fBuffer.append(">");//$NON-NLS-1$
			}
		}
		this.fBuffer.append("this(");//$NON-NLS-1$
		for (Iterator<Expression> it= node.arguments().iterator(); it.hasNext();) {
			Expression e= it.next();
			e.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(",");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(");");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ContinueStatement)
	 */
	@Override
	public boolean visit(ContinueStatement node) {
		this.fBuffer.append("continue");//$NON-NLS-1$
		if (node.getLabel() != null) {
			this.fBuffer.append(" ");//$NON-NLS-1$
			node.getLabel().accept(this);
		}
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}
	
	/*
	 * @see ASTVisitor#visit(CreationReference)
	 */
	@Override
	public boolean visit(CreationReference node) {
		node.getType().accept(this);
		printReferenceTypeArguments(node.typeArguments());
		this.fBuffer.append("new");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(Dimension)
	 */
	@Override
	public boolean visit(Dimension node) {
		this.fBuffer.append(" ");//$NON-NLS-1$
		printAnnotationsList(node.annotations());
		this.fBuffer.append("[]"); //$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(DoStatement)
	 */
	@Override
	public boolean visit(DoStatement node) {
		this.fBuffer.append("do ");//$NON-NLS-1$
		node.getBody().accept(this);
		this.fBuffer.append(" while (");//$NON-NLS-1$
		node.getExpression().accept(this);
		this.fBuffer.append(");");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(EmptyStatement)
	 */
	@Override
	public boolean visit(EmptyStatement node) {
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(EnhancedForStatement)
	 * @since 3.0
	 */
	@Override
	public boolean visit(EnhancedForStatement node) {
		this.fBuffer.append("for (");//$NON-NLS-1$
		node.getParameter().accept(this);
		this.fBuffer.append(" : ");//$NON-NLS-1$
		node.getExpression().accept(this);
		this.fBuffer.append(") ");//$NON-NLS-1$
		node.getBody().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(EnumConstantDeclaration)
	 * @since 3.0
	 */
	@Override
	public boolean visit(EnumConstantDeclaration node) {
		if (node.getJavadoc() != null) {
			node.getJavadoc().accept(this);
		}
		printModifiers(node.modifiers());
		node.getName().accept(this);
		if (!node.arguments().isEmpty()) {
			this.fBuffer.append("(");//$NON-NLS-1$
			for (Iterator<Expression> it= node.arguments().iterator(); it.hasNext();) {
				Expression e= it.next();
				e.accept(this);
				if (it.hasNext()) {
					this.fBuffer.append(",");//$NON-NLS-1$
				}
			}
			this.fBuffer.append(")");//$NON-NLS-1$
		}
		if (node.getAnonymousClassDeclaration() != null) {
			node.getAnonymousClassDeclaration().accept(this);
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(EnumDeclaration)
	 * @since 3.0
	 */
	@Override
	public boolean visit(EnumDeclaration node) {
		if (node.getJavadoc() != null) {
			node.getJavadoc().accept(this);
		}
		printModifiers(node.modifiers());
		this.fBuffer.append("enum ");//$NON-NLS-1$
		node.getName().accept(this);
		this.fBuffer.append(" ");//$NON-NLS-1$
		if (!node.superInterfaceTypes().isEmpty()) {
			this.fBuffer.append("implements ");//$NON-NLS-1$
			for (Iterator<Type> it= node.superInterfaceTypes().iterator(); it.hasNext();) {
				Type t= it.next();
				t.accept(this);
				if (it.hasNext()) {
					this.fBuffer.append(", ");//$NON-NLS-1$
				}
			}
			this.fBuffer.append(" ");//$NON-NLS-1$
		}
		this.fBuffer.append("{");//$NON-NLS-1$
		for (Iterator<EnumConstantDeclaration> it = node.enumConstants().iterator(); it.hasNext(); ) {
			EnumConstantDeclaration d = it.next();
			d.accept(this);
			// enum constant declarations do not include punctuation
			if (it.hasNext()) {
				// enum constant declarations are separated by commas
				this.fBuffer.append(", ");//$NON-NLS-1$
			}
		}
		if (!node.bodyDeclarations().isEmpty()) {
			this.fBuffer.append("; ");//$NON-NLS-1$
			for (Iterator<BodyDeclaration> it = node.bodyDeclarations().iterator(); it.hasNext(); ) {
				BodyDeclaration d = it.next();
				d.accept(this);
				// other body declarations include trailing punctuation
			}
		}
		this.fBuffer.append("}");//$NON-NLS-1$
		return false;
	}

	@Override
	public boolean visit(ExportsDirective node) {
		return visit(node, "exports"); //$NON-NLS-1$
	}

	/*
	 * @see ASTVisitor#visit(ExpressionMethodReference)
	 */
	@Override
	public boolean visit(ExpressionMethodReference node) {
		node.getExpression().accept(this);
		printReferenceTypeArguments(node.typeArguments());
		node.getName().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ExpressionStatement)
	 */
	@Override
	public boolean visit(ExpressionStatement node) {
		node.getExpression().accept(this);
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(FieldAccess)
	 */
	@Override
	public boolean visit(FieldAccess node) {
		node.getExpression().accept(this);
		this.fBuffer.append(".");//$NON-NLS-1$
		node.getName().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(FieldDeclaration)
	 */
	@Override
	public boolean visit(FieldDeclaration node) {
		if (node.getJavadoc() != null) {
			node.getJavadoc().accept(this);
		}
		if (node.getAST().apiLevel() >= JLS3) {
			printModifiers(node.modifiers());
		}
		node.getType().accept(this);
		this.fBuffer.append(" ");//$NON-NLS-1$
		for (Iterator<VariableDeclarationFragment> it= node.fragments().iterator(); it.hasNext();) {
			VariableDeclarationFragment f= it.next();
			f.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(", ");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ForStatement)
	 */
	@Override
	public boolean visit(ForStatement node) {
		this.fBuffer.append("for (");//$NON-NLS-1$
		for (Iterator<Expression> it= node.initializers().iterator(); it.hasNext();) {
			Expression e= it.next();
			e.accept(this);
		}
		this.fBuffer.append("; ");//$NON-NLS-1$
		if (node.getExpression() != null) {
			node.getExpression().accept(this);
		}
		this.fBuffer.append("; ");//$NON-NLS-1$
		for (Iterator<Expression> it= node.updaters().iterator(); it.hasNext();) {
			Expression e= it.next();
			e.accept(this);
		}
		this.fBuffer.append(") ");//$NON-NLS-1$
		node.getBody().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(IfStatement)
	 */
	@Override
	public boolean visit(IfStatement node) {
		this.fBuffer.append("if (");//$NON-NLS-1$
		node.getExpression().accept(this);
		this.fBuffer.append(") ");//$NON-NLS-1$
		node.getThenStatement().accept(this);
		if (node.getElseStatement() != null) {
			this.fBuffer.append(" else ");//$NON-NLS-1$
			node.getElseStatement().accept(this);
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ImportDeclaration)
	 */
	@Override
	public boolean visit(ImportDeclaration node) {
		this.fBuffer.append("import ");//$NON-NLS-1$
		if (node.getAST().apiLevel() >= JLS3) {
			if (node.isStatic()) {
				this.fBuffer.append("static ");//$NON-NLS-1$
			}
		}
		node.getName().accept(this);
		if (node.isOnDemand()) {
			this.fBuffer.append(".*");//$NON-NLS-1$
		}
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(InfixExpression)
	 */
	@Override
	public boolean visit(InfixExpression node) {
		node.getLeftOperand().accept(this);
		this.fBuffer.append(' '); // for cases like x= i - -1; or x= i++ + ++i;
		this.fBuffer.append(node.getOperator().toString());
		this.fBuffer.append(' ');
		node.getRightOperand().accept(this);
		final List<Expression>extendedOperands = node.extendedOperands();
		if (extendedOperands.size() != 0) {
			this.fBuffer.append(' ');
			for (Iterator<Expression> it = extendedOperands.iterator(); it.hasNext(); ) {
				this.fBuffer.append(node.getOperator().toString()).append(' ');
				Expression e = it.next();
				e.accept(this);
			}
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(Initializer)
	 */
	@Override
	public boolean visit(Initializer node) {
		if (node.getJavadoc() != null) {
			node.getJavadoc().accept(this);
		}
		if (node.getAST().apiLevel() >= JLS3) {
			printModifiers(node.modifiers());
		}
		node.getBody().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(InstanceofExpression)
	 */
	@Override
	public boolean visit(InstanceofExpression node) {
		node.getLeftOperand().accept(this);
		this.fBuffer.append(" instanceof ");//$NON-NLS-1$
		node.getRightOperand().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(IntersectionType)
	 */
	@Override
	public boolean visit(IntersectionType node) {
		for (Iterator<Type> it = node.types().iterator(); it.hasNext(); ) {
			Type t = it.next();
			t.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(" & "); //$NON-NLS-1$
			}
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(Javadoc)
	 */
	@Override
	public boolean visit(Javadoc node) {
		this.fBuffer.append("/** ");//$NON-NLS-1$
		for (Iterator<TagElement> it= node.tags().iterator(); it.hasNext();) {
			ASTNode e= it.next();
			e.accept(this);
		}
		this.fBuffer.append("\n */");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(LabeledStatement)
	 */
	@Override
	public boolean visit(LabeledStatement node) {
		node.getLabel().accept(this);
		this.fBuffer.append(": ");//$NON-NLS-1$
		node.getBody().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(LambdaExpression)
	 */
	@Override
	public boolean visit(LambdaExpression node) {
		boolean hasParentheses= node.hasParentheses();
		if (hasParentheses)
			this.fBuffer.append('(');
		for (Iterator<? extends VariableDeclaration> it= node.parameters().iterator(); it.hasNext(); ) {
			VariableDeclaration v= it.next();
			v.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(",");//$NON-NLS-1$
			}
		}
		if (hasParentheses)
			this.fBuffer.append(')');
		this.fBuffer.append(" -> "); //$NON-NLS-1$
		node.getBody().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(LineComment)
	 * @since 3.0
	 */
	@Override
	public boolean visit(LineComment node) {
		this.fBuffer.append("//\n");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(MarkerAnnotation)
	 * @since 3.0
	 */
	@Override
	public boolean visit(MarkerAnnotation node) {
		this.fBuffer.append("@");//$NON-NLS-1$
		node.getTypeName().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(MemberRef)
	 * @since 3.0
	 */
	@Override
	public boolean visit(MemberRef node) {
		if (node.getQualifier() != null) {
			node.getQualifier().accept(this);
		}
		this.fBuffer.append("#");//$NON-NLS-1$
		node.getName().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(MemberValuePair)
	 * @since 3.0
	 */
	@Override
	public boolean visit(MemberValuePair node) {
		node.getName().accept(this);
		this.fBuffer.append("=");//$NON-NLS-1$
		node.getValue().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(MethodRef)
	 * @since 3.0
	 */
	@Override
	public boolean visit(MethodRef node) {
		if (node.getQualifier() != null) {
			node.getQualifier().accept(this);
		}
		this.fBuffer.append("#");//$NON-NLS-1$
		node.getName().accept(this);
		this.fBuffer.append("(");//$NON-NLS-1$
		for (Iterator<MethodRefParameter> it= node.parameters().iterator(); it.hasNext();) {
			MethodRefParameter e= it.next();
			e.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(",");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(")");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(MethodRefParameter)
	 * @since 3.0
	 */
	@Override
	public boolean visit(MethodRefParameter node) {
		node.getType().accept(this);
		if (node.getAST().apiLevel() >= JLS3) {
			if (node.isVarargs()) {
				this.fBuffer.append("...");//$NON-NLS-1$
			}
		}
		if (node.getName() != null) {
			this.fBuffer.append(" ");//$NON-NLS-1$
			node.getName().accept(this);
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(MethodDeclaration)
	 */
	@Override
	public boolean visit(MethodDeclaration node) {
		if (node.getJavadoc() != null) {
			node.getJavadoc().accept(this);
		}
		if (node.getAST().apiLevel() >= JLS3) {
			printModifiers(node.modifiers());
			if (!node.typeParameters().isEmpty()) {
				this.fBuffer.append("<");//$NON-NLS-1$
				for (Iterator<TypeParameter> it= node.typeParameters().iterator(); it.hasNext();) {
					TypeParameter t= it.next();
					t.accept(this);
					if (it.hasNext()) {
						this.fBuffer.append(", ");//$NON-NLS-1$
					}
				}
				this.fBuffer.append("> ");//$NON-NLS-1$
			}
		}
		if (!node.isConstructor()) {
			if (node.getReturnType2() != null) {
				node.getReturnType2().accept(this);
			} else {
				// methods really ought to have a return type
				this.fBuffer.append("void");//$NON-NLS-1$
			}
			this.fBuffer.append(" ");//$NON-NLS-1$
		}
		node.getName().accept(this);
		this.fBuffer.append("(");//$NON-NLS-1$
		if (node.getAST().apiLevel() >= JLS8) {
			Type receiverType= node.getReceiverType();
			if (receiverType != null) {
				receiverType.accept(this);
				this.fBuffer.append(' ');
				SimpleName qualifier= node.getReceiverQualifier();
				if (qualifier != null) {
					qualifier.accept(this);
					this.fBuffer.append('.');
				}
				this.fBuffer.append("this"); //$NON-NLS-1$
				if (node.parameters().size() > 0) {
					this.fBuffer.append(',');
				}
			}
		}
		for (Iterator<SingleVariableDeclaration> it= node.parameters().iterator(); it.hasNext();) {
			SingleVariableDeclaration v= it.next();
			v.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(", ");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(")");//$NON-NLS-1$
		if (node.getAST().apiLevel() >= JLS8) {
			List<Dimension> dimensions = node.extraDimensions();
			for (Iterator<Dimension> it= dimensions.iterator(); it.hasNext(); ) {
				Dimension e= it.next();
				e.accept(this);
			}
		} else {
			for (int i= 0; i < node.getExtraDimensions(); i++) {
				this.fBuffer.append("[]"); //$NON-NLS-1$
			}
		}
		List<? extends ASTNode> thrownExceptions= node.getAST().apiLevel() >= JLS8 ? node.thrownExceptionTypes() : getThrownExceptions(node);
		if (!thrownExceptions.isEmpty()) {
			this.fBuffer.append(" throws ");//$NON-NLS-1$
			for (Iterator<? extends ASTNode> it= thrownExceptions.iterator(); it.hasNext();) {
				ASTNode n = it.next();
				n.accept(this);
				if (it.hasNext()) {
					this.fBuffer.append(", ");//$NON-NLS-1$
				}
			}
			this.fBuffer.append(" ");//$NON-NLS-1$
		}
		if (node.getBody() == null) {
			this.fBuffer.append(";");//$NON-NLS-1$
		} else {
			node.getBody().accept(this);
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(MethodInvocation)
	 */
	@Override
	public boolean visit(MethodInvocation node) {
		if (node.getExpression() != null) {
			node.getExpression().accept(this);
			this.fBuffer.append(".");//$NON-NLS-1$
		}
		if (node.getAST().apiLevel() >= JLS3) {
			if (!node.typeArguments().isEmpty()) {
				this.fBuffer.append("<");//$NON-NLS-1$
				for (Iterator<Type> it= node.typeArguments().iterator(); it.hasNext();) {
					Type t= it.next();
					t.accept(this);
					if (it.hasNext()) {
						this.fBuffer.append(",");//$NON-NLS-1$
					}
				}
				this.fBuffer.append(">");//$NON-NLS-1$
			}
		}
		node.getName().accept(this);
		this.fBuffer.append("(");//$NON-NLS-1$
		for (Iterator<Expression> it= node.arguments().iterator(); it.hasNext();) {
			Expression e= it.next();
			e.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(",");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(")");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(Modifier)
	 * @since 3.0
	 */
	@Override
	public boolean visit(Modifier node) {
		this.fBuffer.append(node.getKeyword().toString());
		return false;
	}

	@Override
	public boolean visit(ModuleDeclaration node) {
		if (node.getJavadoc() != null) {
			node.getJavadoc().accept(this);
		}
		printModifiers(node.annotations());
		if (node.isOpen())
			this.fBuffer.append("open "); //$NON-NLS-1$
		this.fBuffer.append("module"); //$NON-NLS-1$
		this.fBuffer.append(" "); //$NON-NLS-1$
		node.getName().accept(this);
		this.fBuffer.append(" {\n"); //$NON-NLS-1$
		for (ModuleDirective stmt : (List<ModuleDirective>)node.moduleStatements()) {
			stmt.accept(this);
		}
		this.fBuffer.append("}"); //$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ModuleModifier)
	 * @since 3.14
	 */
	@Override
	public boolean visit(ModuleModifier node) {
		this.fBuffer.append(node.getKeyword().toString());
		return false;
	}

	private boolean visit(ModulePackageAccess node, String keyword) {
		this.fBuffer.append(keyword);
		this.fBuffer.append(" ");//$NON-NLS-1$
		node.getName().accept(this);
		printTypes(node.modules(), "to"); //$NON-NLS-1$
		this.fBuffer.append(";\n");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(NameQualifiedType)
	 */
	@Override
	public boolean visit(NameQualifiedType node) {
		node.getQualifier().accept(this);
		this.fBuffer.append('.');
		printTypeAnnotations(node);
		node.getName().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(NormalAnnotation)
	 * @since 3.0
	 */
	@Override
	public boolean visit(NormalAnnotation node) {
		this.fBuffer.append("@");//$NON-NLS-1$
		node.getTypeName().accept(this);
		this.fBuffer.append("(");//$NON-NLS-1$
		for (Iterator<MemberValuePair> it= node.values().iterator(); it.hasNext();) {
			MemberValuePair p= it.next();
			p.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(",");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(")");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(NullLiteral)
	 */
	@Override
	public boolean visit(NullLiteral node) {
		this.fBuffer.append("null");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(NumberLiteral)
	 */
	@Override
	public boolean visit(NumberLiteral node) {
		this.fBuffer.append(node.getToken());
		return false;
	}

	@Override
	public boolean visit(OpensDirective node) {
		return visit(node, "opens"); //$NON-NLS-1$
	}

	/*
	 * @see ASTVisitor#visit(PackageDeclaration)
	 */
	@Override
	public boolean visit(PackageDeclaration node) {
		if (node.getAST().apiLevel() >= JLS3) {
			if (node.getJavadoc() != null) {
				node.getJavadoc().accept(this);
			}
			for (Iterator<Annotation> it= node.annotations().iterator(); it.hasNext();) {
				Annotation p= it.next();
				p.accept(this);
				this.fBuffer.append(" ");//$NON-NLS-1$
			}
		}
		this.fBuffer.append("package ");//$NON-NLS-1$
		node.getName().accept(this);
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ParameterizedType)
	 * @since 3.0
	 */
	@Override
	public boolean visit(ParameterizedType node) {
		node.getType().accept(this);
		this.fBuffer.append("<");//$NON-NLS-1$
		for (Iterator<Type> it= node.typeArguments().iterator(); it.hasNext();) {
			Type t= it.next();
			t.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(",");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(">");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ParenthesizedExpression)
	 */
	@Override
	public boolean visit(ParenthesizedExpression node) {
		this.fBuffer.append("(");//$NON-NLS-1$
		node.getExpression().accept(this);
		this.fBuffer.append(")");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(PostfixExpression)
	 */
	@Override
	public boolean visit(PostfixExpression node) {
		node.getOperand().accept(this);
		this.fBuffer.append(node.getOperator().toString());
		return false;
	}

	/*
	 * @see ASTVisitor#visit(PrefixExpression)
	 */
	@Override
	public boolean visit(PrefixExpression node) {
		this.fBuffer.append(node.getOperator().toString());
		node.getOperand().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(PrimitiveType)
	 */
	@Override
	public boolean visit(PrimitiveType node) {
		printTypeAnnotations(node);
		this.fBuffer.append(node.getPrimitiveTypeCode().toString());
		return false;
	}

	@Override
	public boolean visit(ProvidesDirective node) {
		this.fBuffer.append("provides");//$NON-NLS-1$
		this.fBuffer.append(" ");//$NON-NLS-1$
		node.getName().accept(this);
		printTypes(node.implementations(), "with"); //$NON-NLS-1$
		this.fBuffer.append(";\n");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(QualifiedName)
	 */
	@Override
	public boolean visit(QualifiedName node) {
		node.getQualifier().accept(this);
		this.fBuffer.append(".");//$NON-NLS-1$
		node.getName().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(QualifiedType)
	 * @since 3.0
	 */
	@Override
	public boolean visit(QualifiedType node) {
		node.getQualifier().accept(this);
		this.fBuffer.append(".");//$NON-NLS-1$
		printTypeAnnotations(node);
		node.getName().accept(this);
		return false;
	}

	@Override
	public boolean visit(RequiresDirective node) {
		this.fBuffer.append("requires");//$NON-NLS-1$
		this.fBuffer.append(" ");//$NON-NLS-1$
		printModifiers(node.modifiers());
		node.getName().accept(this);
		this.fBuffer.append(";\n");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ReturnStatement)
	 */
	@Override
	public boolean visit(ReturnStatement node) {
		this.fBuffer.append("return");//$NON-NLS-1$
		if (node.getExpression() != null) {
			this.fBuffer.append(" ");//$NON-NLS-1$
			node.getExpression().accept(this);
		}
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(SimpleName)
	 */
	@Override
	public boolean visit(SimpleName node) {
		this.fBuffer.append(node.getIdentifier());
		return false;
	}

	/*
	 * @see ASTVisitor#visit(SimpleType)
	 */
	@Override
	public boolean visit(SimpleType node) {
		printTypeAnnotations(node);
		node.getName().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(SingleMemberAnnotation)
	 * @since 3.0
	 */
	@Override
	public boolean visit(SingleMemberAnnotation node) {
		this.fBuffer.append("@");//$NON-NLS-1$
		node.getTypeName().accept(this);
		this.fBuffer.append("(");//$NON-NLS-1$
		node.getValue().accept(this);
		this.fBuffer.append(")");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(SingleVariableDeclaration)
	 */
	@Override
	public boolean visit(SingleVariableDeclaration node) {
		if (node.getAST().apiLevel() >= JLS3) {
			printModifiers(node.modifiers());
		}
		node.getType().accept(this);
		if (node.getAST().apiLevel() >= JLS3) {
			if (node.isVarargs()) {
				if (node.getAST().apiLevel() >= JLS8) {
					this.fBuffer.append(' ');
					List<Annotation> annotations= node.varargsAnnotations();
					printAnnotationsList(annotations);
				}
				this.fBuffer.append("...");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(" ");//$NON-NLS-1$
		node.getName().accept(this);
		if (node.getAST().apiLevel() >= JLS8) {
			List<Dimension> dimensions = node.extraDimensions();
			for (Iterator<Dimension> it= dimensions.iterator(); it.hasNext(); ) {
				Dimension e= it.next();
				e.accept(this);
			}
		} else {
			for (int i= 0; i < node.getExtraDimensions(); i++) {
				this.fBuffer.append("[]"); //$NON-NLS-1$
			}
		}
		if (node.getInitializer() != null) {
			this.fBuffer.append("=");//$NON-NLS-1$
			node.getInitializer().accept(this);
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(StringLiteral)
	 */
	@Override
	public boolean visit(StringLiteral node) {
		this.fBuffer.append(node.getEscapedValue());
		return false;
	}

	/*
	 * @see ASTVisitor#visit(StringLiteral)
	 */
	@Override
	public boolean visit(TextBlock node) {
		this.fBuffer.append(node.getEscapedValue());
		return false;
	}

	/*
	 * @see ASTVisitor#visit(SuperConstructorInvocation)
	 */
	@Override
	public boolean visit(SuperConstructorInvocation node) {
		if (node.getExpression() != null) {
			node.getExpression().accept(this);
			this.fBuffer.append(".");//$NON-NLS-1$
		}
		if (node.getAST().apiLevel() >= JLS3) {
			if (!node.typeArguments().isEmpty()) {
				this.fBuffer.append("<");//$NON-NLS-1$
				for (Iterator<Type> it= node.typeArguments().iterator(); it.hasNext();) {
					Type t= it.next();
					t.accept(this);
					if (it.hasNext()) {
						this.fBuffer.append(",");//$NON-NLS-1$
					}
				}
				this.fBuffer.append(">");//$NON-NLS-1$
			}
		}
		this.fBuffer.append("super(");//$NON-NLS-1$
		for (Iterator<Expression> it= node.arguments().iterator(); it.hasNext();) {
			Expression e= it.next();
			e.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(",");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(");");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(SuperFieldAccess)
	 */
	@Override
	public boolean visit(SuperFieldAccess node) {
		if (node.getQualifier() != null) {
			node.getQualifier().accept(this);
			this.fBuffer.append(".");//$NON-NLS-1$
		}
		this.fBuffer.append("super.");//$NON-NLS-1$
		node.getName().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(SuperMethodInvocation)
	 */
	@Override
	public boolean visit(SuperMethodInvocation node) {
		if (node.getQualifier() != null) {
			node.getQualifier().accept(this);
			this.fBuffer.append(".");//$NON-NLS-1$
		}
		this.fBuffer.append("super.");//$NON-NLS-1$
		if (node.getAST().apiLevel() >= JLS3) {
			if (!node.typeArguments().isEmpty()) {
				this.fBuffer.append("<");//$NON-NLS-1$
				for (Iterator<Type> it= node.typeArguments().iterator(); it.hasNext();) {
					Type t= it.next();
					t.accept(this);
					if (it.hasNext()) {
						this.fBuffer.append(",");//$NON-NLS-1$
					}
				}
				this.fBuffer.append(">");//$NON-NLS-1$
			}
		}
		node.getName().accept(this);
		this.fBuffer.append("(");//$NON-NLS-1$
		for (Iterator<Expression> it= node.arguments().iterator(); it.hasNext();) {
			Expression e= it.next();
			e.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(",");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(")");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(SuperMethodReference)
	 */
	@Override
	public boolean visit(SuperMethodReference node) {
		if (node.getQualifier() != null) {
			node.getQualifier().accept(this);
			this.fBuffer.append('.');
		}
		this.fBuffer.append("super");//$NON-NLS-1$
		printReferenceTypeArguments(node.typeArguments());
		node.getName().accept(this);
		return false;
	}

	@Override
	public boolean visit(SwitchCase node) {
		if (node.getAST().isPreviewEnabled()) {
			if (node.isDefault()) {
				this.fBuffer.append("default");//$NON-NLS-1$
				this.fBuffer.append(node.isSwitchLabeledRule() ? " ->" : ":");//$NON-NLS-1$ //$NON-NLS-2$
			} else {
				this.fBuffer.append("case ");//$NON-NLS-1$
				for (Iterator<Expression> it= node.expressions().iterator(); it.hasNext();) {
					Expression t= it.next();
					t.accept(this);
					this.fBuffer.append(it.hasNext() ? ", " : //$NON-NLS-1$
							node.isSwitchLabeledRule() ? " ->" : ":");//$NON-NLS-1$ //$NON-NLS-2$
				}
			}
		} else {
			if (node.isDefault()) {
				this.fBuffer.append("default :\n");//$NON-NLS-1$
			} else {
				this.fBuffer.append("case ");//$NON-NLS-1$
				node.getExpression().accept(this);
				this.fBuffer.append(":\n");//$NON-NLS-1$
			}
		}
		return false;
	}

	@Override
	public boolean visit(YieldStatement node) {
		if (node.getAST().isPreviewEnabled() && node.isImplicit() && node.getExpression() == null) {
			return false;
		}
		this.fBuffer.append("yield"); //$NON-NLS-1$
		if (node.getExpression() != null) {
			this.fBuffer.append(" ");//$NON-NLS-1$
			node.getExpression().accept(this);
		}
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	@Override
	public boolean visit(SwitchStatement node) {
		visitSwitchNode(node);
		return false;
	}
	
	@Override
	public boolean visit(SwitchExpression node) {
		visitSwitchNode(node);
		return false;
	}

	private void visitSwitchNode(ASTNode node) {
		this.fBuffer.append("switch (");//$NON-NLS-1$
		if (node instanceof SwitchExpression) {
			((SwitchExpression) node).getExpression().accept(this);
		} else if (node instanceof SwitchStatement) {
			((SwitchStatement) node).getExpression().accept(this);
		}
		this.fBuffer.append(") ");//$NON-NLS-1$
		this.fBuffer.append("{\n");//$NON-NLS-1$
		if (node instanceof SwitchExpression) {
			for (Iterator<Statement> it= ((SwitchExpression) node).statements().iterator(); it.hasNext();) {
				Statement s= it.next();
				s.accept(this);
			}
		} else if (node instanceof SwitchStatement) {
			for (Iterator<Statement> it= ((SwitchStatement) node).statements().iterator(); it.hasNext();) {
				Statement s= it.next();
				s.accept(this);
			}
		}
		this.fBuffer.append("}\n");//$NON-NLS-1$
	}

	/*
	 * @see ASTVisitor#visit(SynchronizedStatement)
	 */
	@Override
	public boolean visit(SynchronizedStatement node) {
		this.fBuffer.append("synchronized (");//$NON-NLS-1$
		node.getExpression().accept(this);
		this.fBuffer.append(") ");//$NON-NLS-1$
		node.getBody().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(TagElement)
	 * @since 3.0
	 */
	@Override
	public boolean visit(TagElement node) {
		if (node.isNested()) {
			// nested tags are always enclosed in braces
			this.fBuffer.append("{");//$NON-NLS-1$
		} else {
			// top-level tags always begin on a new line
			this.fBuffer.append("\n * ");//$NON-NLS-1$
		}
		boolean previousRequiresWhiteSpace= false;
		if (node.getTagName() != null) {
			this.fBuffer.append(node.getTagName());
			previousRequiresWhiteSpace= true;
		}
		boolean previousRequiresNewLine= false;
		for (Iterator<? extends ASTNode> it= node.fragments().iterator(); it.hasNext();) {
			ASTNode e= it.next();
			// assume text elements include necessary leading and trailing whitespace
			// but Name, MemberRef, MethodRef, and nested TagElement do not include white space
			boolean currentIncludesWhiteSpace= (e instanceof TextElement);
			if (previousRequiresNewLine && currentIncludesWhiteSpace) {
				this.fBuffer.append("\n * ");//$NON-NLS-1$
			}
			previousRequiresNewLine= currentIncludesWhiteSpace;
			// add space if required to separate
			if (previousRequiresWhiteSpace && !currentIncludesWhiteSpace) {
				this.fBuffer.append(" "); //$NON-NLS-1$
			}
			e.accept(this);
			previousRequiresWhiteSpace= !currentIncludesWhiteSpace && !(e instanceof TagElement);
		}
		if (node.isNested()) {
			this.fBuffer.append("}");//$NON-NLS-1$
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(TextElement)
	 * @since 3.0
	 */
	@Override
	public boolean visit(TextElement node) {
		this.fBuffer.append(node.getText());
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ThisExpression)
	 */
	@Override
	public boolean visit(ThisExpression node) {
		if (node.getQualifier() != null) {
			node.getQualifier().accept(this);
			this.fBuffer.append(".");//$NON-NLS-1$
		}
		this.fBuffer.append("this");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(ThrowStatement)
	 */
	@Override
	public boolean visit(ThrowStatement node) {
		this.fBuffer.append("throw ");//$NON-NLS-1$
		node.getExpression().accept(this);
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(TryStatement)
	 */
	@Override
	public boolean visit(TryStatement node) {
		this.fBuffer.append("try ");//$NON-NLS-1$
		if (node.getAST().apiLevel() >= JLS4) {
			if (!node.resources().isEmpty()) {
				this.fBuffer.append("(");//$NON-NLS-1$
				for (Iterator<Expression> it= node.resources().iterator(); it.hasNext();) {
					Expression var= it.next();
					var.accept(this);
					if (it.hasNext()) {
						this.fBuffer.append(",");//$NON-NLS-1$
					}
				}
				this.fBuffer.append(") ");//$NON-NLS-1$
			}
		}
		node.getBody().accept(this);
		this.fBuffer.append(" ");//$NON-NLS-1$
		for (Iterator<CatchClause> it= node.catchClauses().iterator(); it.hasNext();) {
			CatchClause cc= it.next();
			cc.accept(this);
		}
		if (node.getFinally() != null) {
			this.fBuffer.append("finally ");//$NON-NLS-1$
			node.getFinally().accept(this);
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(TypeDeclaration)
	 */
	@Override
	public boolean visit(TypeDeclaration node) {
		if (node.getJavadoc() != null) {
			node.getJavadoc().accept(this);
		}
		if (node.getAST().apiLevel() >= JLS3) {
			printModifiers(node.modifiers());
		}
		this.fBuffer.append(node.isInterface() ? "interface " : "class ");//$NON-NLS-2$//$NON-NLS-1$
		node.getName().accept(this);
		if (node.getAST().apiLevel() >= JLS3) {
			if (!node.typeParameters().isEmpty()) {
				this.fBuffer.append("<");//$NON-NLS-1$
				for (Iterator<TypeParameter> it= node.typeParameters().iterator(); it.hasNext();) {
					TypeParameter t= it.next();
					t.accept(this);
					if (it.hasNext()) {
						this.fBuffer.append(",");//$NON-NLS-1$
					}
				}
				this.fBuffer.append(">");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(" ");//$NON-NLS-1$
		if (node.getAST().apiLevel() >= JLS3) {
			if (node.getSuperclassType() != null) {
				this.fBuffer.append("extends ");//$NON-NLS-1$
				node.getSuperclassType().accept(this);
				this.fBuffer.append(" ");//$NON-NLS-1$
			}
			if (!node.superInterfaceTypes().isEmpty()) {
				this.fBuffer.append(node.isInterface() ? "extends " : "implements ");//$NON-NLS-2$//$NON-NLS-1$
				for (Iterator<Type> it= node.superInterfaceTypes().iterator(); it.hasNext();) {
					Type t= it.next();
					t.accept(this);
					if (it.hasNext()) {
						this.fBuffer.append(", ");//$NON-NLS-1$
					}
				}
				this.fBuffer.append(" ");//$NON-NLS-1$
			}
		}
		this.fBuffer.append("{");//$NON-NLS-1$
		BodyDeclaration prev= null;
		for (Iterator<BodyDeclaration> it= node.bodyDeclarations().iterator(); it.hasNext();) {
			BodyDeclaration d= it.next();
			if (prev instanceof EnumConstantDeclaration) {
				// enum constant declarations do not include punctuation
				if (d instanceof EnumConstantDeclaration) {
					// enum constant declarations are separated by commas
					this.fBuffer.append(", ");//$NON-NLS-1$
				} else {
					// semicolon separates last enum constant declaration from
					// first class body declarations
					this.fBuffer.append("; ");//$NON-NLS-1$
				}
			}
			d.accept(this);
			prev= d;
		}
		this.fBuffer.append("}");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(TypeDeclarationStatement)
	 */
	@Override
	public boolean visit(TypeDeclarationStatement node) {
		if (node.getAST().apiLevel() >= JLS3) {
			node.getDeclaration().accept(this);
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(TypeLiteral)
	 */
	@Override
	public boolean visit(TypeLiteral node) {
		node.getType().accept(this);
		this.fBuffer.append(".class");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(TypeMethodReference)
	 */
	@Override
	public boolean visit(TypeMethodReference node) {
		node.getType().accept(this);
		printReferenceTypeArguments(node.typeArguments());
		node.getName().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(TypeParameter)
	 * @since 3.0
	 */
	@Override
	public boolean visit(TypeParameter node) {
		printModifiers(node.modifiers());
		node.getName().accept(this);
		if (!node.typeBounds().isEmpty()) {
			this.fBuffer.append(" extends ");//$NON-NLS-1$
			for (Iterator<Type> it= node.typeBounds().iterator(); it.hasNext();) {
				Type t= it.next();
				t.accept(this);
				if (it.hasNext()) {
					this.fBuffer.append(" & ");//$NON-NLS-1$
				}
			}
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(UnionType)
	 */
	@Override
	public boolean visit(UnionType node) {
		for (Iterator<Type> it= node.types().iterator(); it.hasNext();) {
			Type t= it.next();
			t.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append("|");//$NON-NLS-1$
			}
		}
		return false;
	}

	@Override
	public boolean visit(UsesDirective node) {
		this.fBuffer.append("uses");//$NON-NLS-1$
		this.fBuffer.append(" ");//$NON-NLS-1$
		node.getName().accept(this);
		this.fBuffer.append(";\n");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(VariableDeclarationExpression)
	 */
	@Override
	public boolean visit(VariableDeclarationExpression node) {
		if (node.getAST().apiLevel() >= JLS3) {
			printModifiers(node.modifiers());
		}
		node.getType().accept(this);
		this.fBuffer.append(" ");//$NON-NLS-1$
		for (Iterator<VariableDeclarationFragment> it= node.fragments().iterator(); it.hasNext();) {
			VariableDeclarationFragment f= it.next();
			f.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(", ");//$NON-NLS-1$
			}
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(VariableDeclarationFragment)
	 */
	@Override
	public boolean visit(VariableDeclarationFragment node) {
		node.getName().accept(this);
		if (node.getAST().apiLevel() >= JLS8) {
			List<Dimension> dimensions = node.extraDimensions();
			for (Iterator<Dimension> it= dimensions.iterator(); it.hasNext(); ) {
				Dimension e= it.next();
				e.accept(this);
			}
		} else {
			for (int i= 0; i < node.getExtraDimensions(); i++) {
				this.fBuffer.append("[]"); //$NON-NLS-1$
			}
		}
		if (node.getInitializer() != null) {
			this.fBuffer.append("=");//$NON-NLS-1$
			node.getInitializer().accept(this);
		}
		return false;
	}

	/*
	 * @see ASTVisitor#visit(VariableDeclarationStatement)
	 */
	@Override
	public boolean visit(VariableDeclarationStatement node) {
		if (node.getAST().apiLevel() >= JLS3) {
			printModifiers(node.modifiers());
		}
		node.getType().accept(this);
		this.fBuffer.append(" ");//$NON-NLS-1$
		for (Iterator<VariableDeclarationFragment> it= node.fragments().iterator(); it.hasNext();) {
			VariableDeclarationFragment f= it.next();
			f.accept(this);
			if (it.hasNext()) {
				this.fBuffer.append(", ");//$NON-NLS-1$
			}
		}
		this.fBuffer.append(";");//$NON-NLS-1$
		return false;
	}

	/*
	 * @see ASTVisitor#visit(WhileStatement)
	 */
	@Override
	public boolean visit(WhileStatement node) {
		this.fBuffer.append("while (");//$NON-NLS-1$
		node.getExpression().accept(this);
		this.fBuffer.append(") ");//$NON-NLS-1$
		node.getBody().accept(this);
		return false;
	}

	/*
	 * @see ASTVisitor#visit(WildcardType)
	 * @since 3.0
	 */
	@Override
	public boolean visit(WildcardType node) {
		printTypeAnnotations(node);
		this.fBuffer.append("?");//$NON-NLS-1$
		Type bound= node.getBound();
		if (bound != null) {
			if (node.isUpperBound()) {
				this.fBuffer.append(" extends ");//$NON-NLS-1$
			} else {
				this.fBuffer.append(" super ");//$NON-NLS-1$
			}
			bound.accept(this);
		}
		return false;
	}

}