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annotate jvmci/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/MethodHandleAccessProvider.java @ 21798:395ac43a8578

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moved JVMCI sources from graal/ to jvmci/ directory
author Doug Simon <doug.simon@oracle.com>
date Tue, 09 Jun 2015 00:22:49 +0200
parents graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/MethodHandleAccessProvider.java@48c1ebd24120
children
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6faee2dcebbf moved MethodHandleAccessProvider to graal.api.meta and made it retrievable from MetaAccessProvider so that it does not need to be accessed via a global in MethodHandleNode (which is problematic for remote/replay compilation) (GRAAL-874)
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1 /*
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2 * Copyright (c) 2014, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.jvmci.meta;
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24
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25 import java.lang.invoke.*;
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26
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27 /**
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28 * Interface to access the internals of the {@link MethodHandle} implementation of the VM. An
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29 * implementation of this interface is usually required to access non-public classes, methods, and
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30 * fields of {@link MethodHandle}, i.e., data that is not standardized by the Java specification.
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31 */
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32 public interface MethodHandleAccessProvider {
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33
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34 /**
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35 * Identification for methods defined on the class {@link MethodHandle} that are processed by
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36 * the {@link MethodHandleAccessProvider}.
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37 */
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38 public enum IntrinsicMethod {
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39 /** The method {@code MethodHandle.invokeBasic}. */
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40 INVOKE_BASIC,
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41 /** The method {@code MethodHandle.linkToStatic}. */
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42 LINK_TO_STATIC,
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43 /** The method {@code MethodHandle.linkToSpecial}. */
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44 LINK_TO_SPECIAL,
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45 /** The method {@code MethodHandle.linkToVirtual}. */
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46 LINK_TO_VIRTUAL,
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47 /** The method {@code MethodHandle.linkToInterface}. */
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48 LINK_TO_INTERFACE
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49 }
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50
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51 /**
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52 * Returns the method handle method intrinsic identifier for the provided method, or
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53 * {@code null} if the method is not an intrinsic processed by this interface.
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54 */
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55 IntrinsicMethod lookupMethodHandleIntrinsic(ResolvedJavaMethod method);
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56
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57 /**
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58 * Resolves the invocation target for an invocation of {@link IntrinsicMethod#INVOKE_BASIC
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59 * MethodHandle.invokeBasic} with the given constant receiver {@link MethodHandle}. Returns
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60 * {@code null} if the invocation target is not available at this time.
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61 * <p>
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62 * The first invocations of a method handle can use an interpreter to lookup the actual invoked
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63 * method; frequently executed method handles can use Java bytecode generation to avoid the
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64 * interpreter overhead. If the parameter forceBytecodeGeneration is set to true, the VM should
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65 * try to generate bytecodes before this method returns.
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66 */
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67 ResolvedJavaMethod resolveInvokeBasicTarget(JavaConstant methodHandle, boolean forceBytecodeGeneration);
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68
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69 /**
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70 * Resolves the invocation target for an invocation of a {@code MethodHandle.linkTo*} method
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71 * with the given constant member name. The member name is the last parameter of the
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72 * {@code linkTo*} method. Returns {@code null} if the invocation target is not available at
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73 * this time.
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74 */
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75 ResolvedJavaMethod resolveLinkToTarget(JavaConstant memberName);
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76 }