1/*
2 * Copyright (C) 2007-2010 Júlio 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
22package com.github.javaparser.ast.expr;
23
24import com.github.javaparser.Range;
25import com.github.javaparser.ast.visitor.GenericVisitor;
26import com.github.javaparser.ast.visitor.VoidVisitor;
27
28/**
29 * @author Julio Vilmar Gesser
30 */
31public final class UnaryExpr extends Expression {
32
33	public enum Operator {
34		positive, // +
35		negative, // -
36		preIncrement, // ++
37		preDecrement, // --
38		not, // !
39		inverse, // ~
40		posIncrement, // ++
41		posDecrement, // --
42	}
43
44	private Expression expr;
45
46	private Operator op;
47
48	public UnaryExpr() {
49	}
50
51	public UnaryExpr(final Expression expr, final Operator op) {
52		setExpr(expr);
53		setOperator(op);
54	}
55
56	public UnaryExpr(final Range range, final Expression expr, final Operator op) {
57		super(range);
58		setExpr(expr);
59		setOperator(op);
60	}
61
62	@Override public <R, A> R accept(final GenericVisitor<R, A> v, final A arg) {
63		return v.visit(this, arg);
64	}
65
66	@Override public <A> void accept(final VoidVisitor<A> v, final A arg) {
67		v.visit(this, arg);
68	}
69
70	public Expression getExpr() {
71		return expr;
72	}
73
74	public Operator getOperator() {
75		return op;
76	}
77
78	public UnaryExpr setExpr(final Expression expr) {
79		this.expr = expr;
80		setAsParentNodeOf(this.expr);
81		return this;
82	}
83
84	public UnaryExpr setOperator(final Operator op) {
85		this.op = op;
86		return this;
87	}
88}
89