1/*
2 * Copyright (c) 2015, 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 */
25
26package jdk.internal.misc;
27
28import java.lang.invoke.MethodType;
29import java.util.Map;
30
31public interface JavaLangInvokeAccess {
32    /**
33     * Create a new MemberName instance. Used by {@see StackFrameInfo}.
34     */
35    Object newMemberName();
36
37    /**
38     * Returns the name for the given MemberName. Used by {@see StackFrameInfo}.
39     */
40    String getName(Object mname);
41
42    /**
43     * Returns {@code true} if the given MemberName is a native method. Used by
44     * {@see StackFrameInfo}.
45     */
46    boolean isNative(Object mname);
47
48    /**
49     * Returns a {@code byte[]} representation of a class implementing
50     * DirectMethodHandle of each pairwise combination of {@code MethodType} and
51     * an {@code int} representing method type.  Used by
52     * GenerateJLIClassesPlugin to generate such a class during the jlink phase.
53     */
54    byte[] generateDirectMethodHandleHolderClassBytes(String className,
55            MethodType[] methodTypes, int[] types);
56
57    /**
58     * Returns a {@code byte[]} representation of a class implementing
59     * DelegatingMethodHandles of each {@code MethodType} kind in the
60     * {@code methodTypes} argument.  Used by GenerateJLIClassesPlugin to
61     * generate such a class during the jlink phase.
62     */
63    byte[] generateDelegatingMethodHandleHolderClassBytes(String className,
64            MethodType[] methodTypes);
65
66    /**
67     * Returns a {@code byte[]} representation of {@code BoundMethodHandle}
68     * species class implementing the signature defined by {@code types}. Used
69     * by GenerateBMHClassesPlugin to enable generation of such classes during
70     * the jlink phase. Should do some added validation since this string may be
71     * user provided.
72     */
73    Map.Entry<String, byte[]> generateConcreteBMHClassBytes(
74            final String types);
75
76    /**
77     * Returns a {@code byte[]} representation of a class implementing
78     * the zero and identity forms of all {@code LambdaForm.BasicType}s.
79     */
80    byte[] generateBasicFormsClassBytes(final String className);
81
82    /**
83     * Returns a {@code byte[]} representation of a class implementing
84     * the invoker forms for the set of supplied {@code methodTypes}.
85     */
86    byte[] generateInvokersHolderClassBytes(String className,
87            MethodType[] methodTypes);
88}
89