Mercurial > hg > truffle
comparison graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/MethodHandleAccessProvider.java @ 21556:48c1ebd24120
renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 27 May 2015 00:36:16 +0200 |
parents | graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/MethodHandleAccessProvider.java@2906b3cc3e2f |
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1 /* | |
2 * Copyright (c) 2014, 2014, 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. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 */ | |
23 package com.oracle.jvmci.meta; | |
24 | |
25 import java.lang.invoke.*; | |
26 | |
27 /** | |
28 * Interface to access the internals of the {@link MethodHandle} implementation of the VM. An | |
29 * implementation of this interface is usually required to access non-public classes, methods, and | |
30 * fields of {@link MethodHandle}, i.e., data that is not standardized by the Java specification. | |
31 */ | |
32 public interface MethodHandleAccessProvider { | |
33 | |
34 /** | |
35 * Identification for methods defined on the class {@link MethodHandle} that are processed by | |
36 * the {@link MethodHandleAccessProvider}. | |
37 */ | |
38 public enum IntrinsicMethod { | |
39 /** The method {@code MethodHandle.invokeBasic}. */ | |
40 INVOKE_BASIC, | |
41 /** The method {@code MethodHandle.linkToStatic}. */ | |
42 LINK_TO_STATIC, | |
43 /** The method {@code MethodHandle.linkToSpecial}. */ | |
44 LINK_TO_SPECIAL, | |
45 /** The method {@code MethodHandle.linkToVirtual}. */ | |
46 LINK_TO_VIRTUAL, | |
47 /** The method {@code MethodHandle.linkToInterface}. */ | |
48 LINK_TO_INTERFACE | |
49 } | |
50 | |
51 /** | |
52 * Returns the method handle method intrinsic identifier for the provided method, or | |
53 * {@code null} if the method is not an intrinsic processed by this interface. | |
54 */ | |
55 IntrinsicMethod lookupMethodHandleIntrinsic(ResolvedJavaMethod method); | |
56 | |
57 /** | |
58 * Resolves the invocation target for an invocation of {@link IntrinsicMethod#INVOKE_BASIC | |
59 * MethodHandle.invokeBasic} with the given constant receiver {@link MethodHandle}. Returns | |
60 * {@code null} if the invocation target is not available at this time. | |
61 * <p> | |
62 * The first invocations of a method handle can use an interpreter to lookup the actual invoked | |
63 * method; frequently executed method handles can use Java bytecode generation to avoid the | |
64 * interpreter overhead. If the parameter forceBytecodeGeneration is set to true, the VM should | |
65 * try to generate bytecodes before this method returns. | |
66 */ | |
67 ResolvedJavaMethod resolveInvokeBasicTarget(JavaConstant methodHandle, boolean forceBytecodeGeneration); | |
68 | |
69 /** | |
70 * Resolves the invocation target for an invocation of a {@code MethodHandle.linkTo*} method | |
71 * with the given constant member name. The member name is the last parameter of the | |
72 * {@code linkTo*} method. Returns {@code null} if the invocation target is not available at | |
73 * this time. | |
74 */ | |
75 ResolvedJavaMethod resolveLinkToTarget(JavaConstant memberName); | |
76 } |