JavaParser/com/github/javaparser/ast/stmt/AssertStmt.java

1	/*
2	* Copyright (C) 2007-2010 Júlio Vilmar Gesser.
3	* Copyright (C) 2011, 2013-2020 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.stmt;
22
23	import com.github.javaparser.ast.AllFieldsConstructor;
24	import com.github.javaparser.ast.expr.BooleanLiteralExpr;
25	import com.github.javaparser.ast.expr.Expression;
26	import com.github.javaparser.ast.observer.ObservableProperty;
27	import com.github.javaparser.ast.visitor.GenericVisitor;
28	import com.github.javaparser.ast.visitor.VoidVisitor;
29	import java.util.Optional;
30	import static com.github.javaparser.utils.Utils.assertNotNull;
31	import com.github.javaparser.ast.Node;
32	import com.github.javaparser.ast.visitor.CloneVisitor;
33	import com.github.javaparser.metamodel.AssertStmtMetaModel;
34	import com.github.javaparser.metamodel.JavaParserMetaModel;
35	import com.github.javaparser.TokenRange;
36	import com.github.javaparser.metamodel.OptionalProperty;
37	import java.util.function.Consumer;
38	import com.github.javaparser.ast.Generated;
39
40	/**
41	* A usage of the keyword "assert"
42	* <br>In {@code assert dead : "Wasn't expecting to be dead here";} the check is "dead" and the message is the string.
43	* @author Julio Vilmar Gesser
44	*/
45	public class AssertStmt extends Statement {
46
47	private Expression check;
48
49	@OptionalProperty
50	private Expression message;
51
52	public AssertStmt() {
53	this(null, new BooleanLiteralExpr(), null);
54	}
55
56	public AssertStmt(final Expression check) {
57	this(null, check, null);
58	}
59
60	@AllFieldsConstructor
61	public AssertStmt(final Expression check, final Expression message) {
62	this(null, check, message);
63	}
64
65	/**
66	* This constructor is used by the parser and is considered private.
67	*/
68	@Generated("com.github.javaparser.generator.core.node.MainConstructorGenerator")
69	public AssertStmt(TokenRange tokenRange, Expression check, Expression message) {
70	super(tokenRange);
71	setCheck(check);
72	setMessage(message);
73	customInitialization();
74	}
75
76	@Override
77	@Generated("com.github.javaparser.generator.core.node.AcceptGenerator")
78	public <R, A> R accept(final GenericVisitor<R, A> v, final A arg) {
79	return v.visit(this, arg);
80	}
81
82	@Override
83	@Generated("com.github.javaparser.generator.core.node.AcceptGenerator")
84	public <A> void accept(final VoidVisitor<A> v, final A arg) {
85	v.visit(this, arg);
86	}
87
88	@Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
89	public Expression getCheck() {
90	return check;
91	}
92
93	@Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
94	public Optional<Expression> getMessage() {
95	return Optional.ofNullable(message);
96	}
97
98	@Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
99	public AssertStmt setCheck(final Expression check) {
100	assertNotNull(check);
101	if (check == this.check) {
102	return (AssertStmt) this;
103	}
104	notifyPropertyChange(ObservableProperty.CHECK, this.check, check);
105	if (this.check != null)
106	this.check.setParentNode(null);
107	this.check = check;
108	setAsParentNodeOf(check);
109	return this;
110	}
111
112	/**
113	* Sets the message
114	*
115	* @param message the message, can be null
116	* @return this, the AssertStmt
117	*/
118	@Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
119	public AssertStmt setMessage(final Expression message) {
120	if (message == this.message) {
121	return (AssertStmt) this;
122	}
123	notifyPropertyChange(ObservableProperty.MESSAGE, this.message, message);
124	if (this.message != null)
125	this.message.setParentNode(null);
126	this.message = message;
127	setAsParentNodeOf(message);
128	return this;
129	}
130
131	@Override
132	@Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator")
133	public boolean remove(Node node) {
134	if (node == null)
135	return false;
136	if (message != null) {
137	if (node == message) {
138	removeMessage();
139	return true;
140	}
141	}
142	return super.remove(node);
143	}
144
145	@Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator")
146	public AssertStmt removeMessage() {
147	return setMessage((Expression) null);
148	}
149
150	@Override
151	@Generated("com.github.javaparser.generator.core.node.CloneGenerator")
152	public AssertStmt clone() {
153	return (AssertStmt) accept(new CloneVisitor(), null);
154	}
155
156	@Override
157	@Generated("com.github.javaparser.generator.core.node.GetMetaModelGenerator")
158	public AssertStmtMetaModel getMetaModel() {
159	return JavaParserMetaModel.assertStmtMetaModel;
160	}
161
162	@Override
163	@Generated("com.github.javaparser.generator.core.node.ReplaceMethodGenerator")
164	public boolean replace(Node node, Node replacementNode) {
165	if (node == null)
166	return false;
167	if (node == check) {
168	setCheck((Expression) replacementNode);
169	return true;
170	}
171	if (message != null) {
172	if (node == message) {
173	setMessage((Expression) replacementNode);
174	return true;
175	}
176	}
177	return super.replace(node, replacementNode);
178	}
179
180	@Override
181	@Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
182	public boolean isAssertStmt() {
183	return true;
184	}
185
186	@Override
187	@Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
188	public AssertStmt asAssertStmt() {
189	return this;
190	}
191
192	@Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
193	public void ifAssertStmt(Consumer<AssertStmt> action) {
194	action.accept(this);
195	}
196
197	@Override
198	@Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
199	public Optional<AssertStmt> toAssertStmt() {
200	return Optional.of(this);
201	}
202	}
203