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/*
* Copyright (C) 2007-2010 Júlio Vilmar Gesser.
* Copyright (C) 2011, 2013-2016 The JavaParser Team.
*
* This file is part of JavaParser.
*
* JavaParser can be used either under the terms of
* a) 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.
* b) the terms of the Apache License
*
* You should have received a copy of both licenses in LICENCE.LGPL and
* LICENCE.APACHE. Please refer to those files for details.
*
* JavaParser 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.
*/
package com.github.javaparser.ast.expr;
import com.github.javaparser.Range;
import com.github.javaparser.ast.observing.ObservableProperty;
import com.github.javaparser.ast.visitor.GenericVisitor;
import com.github.javaparser.ast.visitor.VoidVisitor;
import com.github.javaparser.utils.Utils;
import static com.github.javaparser.utils.Utils.assertNotNull;
/**
* Java® Language Specification 3.10.5 String Literals
* @author Julio Vilmar Gesser
*/
public class StringLiteralExpr extends LiteralExpr {
protected String value;
public StringLiteralExpr() {
this(null, "empty");
}
public StringLiteralExpr(final String value) {
this(null, value);
}
/**
* Utility method that creates a new StringLiteralExpr. Escapes EOL characters.
*/
public static StringLiteralExpr escape(String string) {
return new StringLiteralExpr(Utils.escapeEndOfLines(string));
}
public StringLiteralExpr(final Range range, final String value) {
super(range);
setValue(value);
}
@Override public <R, A> R accept(final GenericVisitor<R, A> v, final A arg) {
return v.visit(this, arg);
}
@Override public <A> void accept(final VoidVisitor<A> v, final A arg) {
v.visit(this, arg);
}
public final String getValue() {
return value;
}
public final StringLiteralExpr setValue(final String value) {
notifyPropertyChange(ObservableProperty.VALUE, this.value, value);
this.value = assertNotNull(value);
if (value.contains("\n") || value.contains("\r")) {
throw new IllegalArgumentException("Illegal literal expression: newlines (line feed or carriage return) have to be escaped");
}
return this;
}
}
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