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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 package com.github.javaparser.ast.expr;
     22 
     23 import com.github.javaparser.ast.AllFieldsConstructor;
     24 import com.github.javaparser.ast.Node;
     25 import com.github.javaparser.ast.visitor.CloneVisitor;
     26 import com.github.javaparser.metamodel.JavaParserMetaModel;
     27 import com.github.javaparser.metamodel.LiteralExprMetaModel;
     28 import javax.annotation.Generated;
     29 import com.github.javaparser.TokenRange;
     30 import java.util.function.Consumer;
     31 import java.util.Optional;
     32 
     33 /**
     34  * A base class for all literal expressions.
     35  *
     36  * @author Julio Vilmar Gesser
     37  */
     38 public abstract class LiteralExpr extends Expression {
     39 
     40     @AllFieldsConstructor
     41     public LiteralExpr() {
     42         this(null);
     43     }
     44 
     45     /**
     46      * This constructor is used by the parser and is considered private.
     47      */
     48     @Generated("com.github.javaparser.generator.core.node.MainConstructorGenerator")
     49     public LiteralExpr(TokenRange tokenRange) {
     50         super(tokenRange);
     51         customInitialization();
     52     }
     53 
     54     @Override
     55     @Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator")
     56     public boolean remove(Node node) {
     57         if (node == null)
     58             return false;
     59         return super.remove(node);
     60     }
     61 
     62     @Override
     63     @Generated("com.github.javaparser.generator.core.node.CloneGenerator")
     64     public LiteralExpr clone() {
     65         return (LiteralExpr) accept(new CloneVisitor(), null);
     66     }
     67 
     68     @Override
     69     @Generated("com.github.javaparser.generator.core.node.GetMetaModelGenerator")
     70     public LiteralExprMetaModel getMetaModel() {
     71         return JavaParserMetaModel.literalExprMetaModel;
     72     }
     73 
     74     @Override
     75     @Generated("com.github.javaparser.generator.core.node.ReplaceMethodGenerator")
     76     public boolean replace(Node node, Node replacementNode) {
     77         if (node == null)
     78             return false;
     79         return super.replace(node, replacementNode);
     80     }
     81 
     82     @Override
     83     @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
     84     public boolean isLiteralExpr() {
     85         return true;
     86     }
     87 
     88     @Override
     89     @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
     90     public LiteralExpr asLiteralExpr() {
     91         return this;
     92     }
     93 
     94     @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
     95     public void ifLiteralExpr(Consumer<LiteralExpr> action) {
     96         action.accept(this);
     97     }
     98 
     99     @Override
    100     @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    101     public Optional<LiteralExpr> toLiteralExpr() {
    102         return Optional.of(this);
    103     }
    104 }
    105