Wed, 23 Jan 2013 13:27:24 -0800
8006775: JSR 308: Compiler changes in JDK8
Reviewed-by: jjg
Contributed-by: mernst@cs.washington.edu, wmdietl@cs.washington.edu, mpapi@csail.mit.edu, mahmood@notnoop.com
1 /*
2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 package com.sun.source.tree;
28 import java.util.List;
30 /**
31 * A tree node for a lambda expression.
32 *
33 * For example:
34 * <pre>{@code
35 * ()->{}
36 * (List<String> ls)->ls.size()
37 * (x,y)-> { return x + y; }
38 * }</pre>
39 */
40 public interface LambdaExpressionTree extends ExpressionTree {
42 /**
43 * Lambda expressions come in two forms: (i) expression lambdas, whose body
44 * is an expression, and (ii) statement lambdas, whose body is a block
45 */
46 public enum BodyKind {
47 /** enum constant for expression lambdas */
48 EXPRESSION,
49 /** enum constant for statement lambdas */
50 STATEMENT;
51 }
53 List<? extends VariableTree> getParameters();
54 Tree getBody();
55 BodyKind getBodyKind();
56 }