1 /**
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
5 * Portions Copyright 2013-2018 Philip Helger + contributors
6 *
7 * The contents of this file are subject to the terms of either the GNU
8 * General Public License Version 2 only ("GPL") or the Common Development
9 * and Distribution License("CDDL") (collectively, the "License"). You
10 * may not use this file except in compliance with the License. You can
11 * obtain a copy of the License at
12 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
13 * or packager/legal/LICENSE.txt. See the License for the specific
14 * language governing permissions and limitations under the License.
15 *
16 * When distributing the software, include this License Header Notice in each
17 * file and include the License file at packager/legal/LICENSE.txt.
18 *
19 * GPL Classpath Exception:
20 * Oracle designates this particular file as subject to the "Classpath"
21 * exception as provided by Oracle in the GPL Version 2 section of the License
22 * file that accompanied this code.
23 *
24 * Modifications:
25 * If applicable, add the following below the License Header, with the fields
26 * enclosed by brackets [] replaced by your own identifying information:
27 * "Portions Copyright [year] [name of copyright owner]"
28 *
29 * Contributor(s):
30 * If you wish your version of this file to be governed by only the CDDL or
31 * only the GPL Version 2, indicate your decision by adding "[Contributor]
32 * elects to include this software in this distribution under the [CDDL or GPL
33 * Version 2] license." If you don't indicate a single choice of license, a
34 * recipient has the option to distribute your version of this file under
35 * either the CDDL, the GPL Version 2 or to extend the choice of license to
36 * its licensees as provided above. However, if you add GPL Version 2 code
37 * and therefore, elected the GPL Version 2 license, then the option applies
38 * only if the new code is made subject to such option by the copyright
39 * holder.
40 */
41 package com.helger.jcodemodel;
42
43 import javax.annotation.Nonnull;
44 import javax.annotation.Nullable;
45
46 import com.helger.jcodemodel.util.JCValueEnforcer;
47
48 /**
49 * This represent a single parameter to a Java 8 lambda expression.
50 *
51 * @author Philip Helger
52 * @since 2.7.10
53 */
54 public class JLambdaParam implements IJAssignmentTarget, IJDeclaration
55 {
56 private final AbstractJType m_aType;
57 private final String m_sName;
58
59 public JLambdaParam (@Nullable final AbstractJType aType, @Nonnull final String sName)
60 {
61 JCValueEnforcer.isTrue (JJavaName.isJavaIdentifier (sName), () -> "Illegal variable name '" + sName + "'");
62 m_aType = aType;
63 m_sName = sName;
64 }
65
66 @Nullable
67 public AbstractJType type ()
68 {
69 return m_aType;
70 }
71
72 public boolean hasType ()
73 {
74 return m_aType != null;
75 }
76
77 @Nonnull
78 public String name ()
79 {
80 return m_sName;
81 }
82
83 public void declare (@Nonnull final IJFormatter f)
84 {
85 if (m_aType != null)
86 f.generable (m_aType);
87 f.id (m_sName);
88 }
89
90 public void generate (@Nonnull final IJFormatter f)
91 {
92 f.id (m_sName);
93 }
94 }