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      1 /*
      2  * Copyright (C) 2007-2010 Jlio Vilmar Gesser.
      3  * Copyright (C) 2011, 2013-2016 The JavaParser Team.
      4  *
      5  * This file is part of JavaParser.
      6  *
      7  * JavaParser can be used either under the terms of
      8  * a) the GNU Lesser General Public License as published by
      9  *     the Free Software Foundation, either version 3 of the License, or
     10  *     (at your option) any later version.
     11  * b) the terms of the Apache License
     12  *
     13  * You should have received a copy of both licenses in LICENCE.LGPL and
     14  * LICENCE.APACHE. Please refer to those files for details.
     15  *
     16  * JavaParser is distributed in the hope that it will be useful,
     17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     19  * GNU Lesser General Public License for more details.
     20  */
     21 
     22 package com.github.javaparser.printer.lexicalpreservation;
     23 
     24 import com.github.javaparser.GeneratedJavaParserConstants;
     25 import com.github.javaparser.ast.Node;
     26 
     27 public abstract class TextElement implements TextElementMatcher {
     28 
     29     abstract String expand();
     30 
     31     abstract boolean isToken(int tokenKind);
     32 
     33     final boolean isCommentToken() {
     34         return isToken(GeneratedJavaParserConstants.JAVADOC_COMMENT)
     35                 || isToken(GeneratedJavaParserConstants.SINGLE_LINE_COMMENT)
     36                 || isToken(GeneratedJavaParserConstants.MULTI_LINE_COMMENT);
     37     }
     38 
     39     @Override
     40     public boolean match(TextElement textElement) {
     41         return this.equals(textElement);
     42     }
     43 
     44     abstract boolean isNode(Node node);
     45 
     46     public abstract boolean isWhiteSpace();
     47 
     48     public abstract boolean isSpaceOrTab();
     49 
     50     public abstract boolean isNewline();
     51 
     52     public abstract boolean isComment();
     53 
     54     public final boolean isWhiteSpaceOrComment() {
     55         return isWhiteSpace() || isComment();
     56     }
     57 
     58     /**
     59      * Is this TextElement representing a child of the given class?
     60      */
     61     public abstract boolean isChildOfClass(Class<? extends Node> nodeClass);
     62 }
     63