Abstract Syntax Tree viewer

This is a tool that shows the abstract syntax tree as found by the JavaStyle parser. (this might be slightly different from that which you would expect from the Java Language Specification).

public class X {
   public X() {
     int y = 1;
   }
}

has the tree

CompilationUnit
 TypeDeclaration
 ClassDeclaration (public )
  UnmodifiedClassDeclaration X
    ClassBody
    ClassBodyDeclaration
     ConstructorDeclaration X (public )
      FormalParameters
      BlockStatement
       LocalVariableDeclaration
        Type
         PrimitiveType int
        VariableDeclarator
         VariableDeclaratorId y
         VariableInitializer
          Expression
           ConditionalExpression
            ConditionalOrExpression
             ConditionalAndExpression
              InclusiveOrExpression
               ExclusiveOrExpression
                AndExpression
                 EqualityExpression
                  InstanceOfExpression
                   RelationalExpression
                    ShiftExpression
                     AdditiveExpression
                      MultiplicativeExpression
                       UnaryExpression
                        UnaryExpressionNotPlusMinus
                         PostfixExpression
                          PrimaryExpression
                           PrimaryPrefix
                            Literal 1

performing the XPath query

//Literal

gives the result

ASTLiteral at line 3

Last Modified: 30 October 2003