Mercurial > hg > truffle
view graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/MetaAccessProvider.java @ 12719:895f31682b88
Make the speculation id an int and allow for more bits to be set in the HotSpot implementation (which currently silently discards unsupported high bit).
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Fri, 08 Nov 2013 12:10:15 +0100 |
parents | 38b84d5a66fd |
children | 45fcb3ec0d43 |
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/* * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.api.meta; import java.lang.reflect.*; /** * Provides access to the metadata of a class typically provided in a class file. */ public interface MetaAccessProvider { /** * Returns the resolved Java type representing a given Java class. * * @param clazz the Java class object * @return the resolved Java type object */ ResolvedJavaType lookupJavaType(Class<?> clazz); /** * Provides the {@link ResolvedJavaMethod} for a {@link Method} obtained via reflection. */ ResolvedJavaMethod lookupJavaMethod(Method reflectionMethod); /** * Provides the {@link ResolvedJavaMethod} for a {@link Constructor} obtained via reflection. */ ResolvedJavaMethod lookupJavaConstructor(Constructor reflectionConstructor); /** * Provides the {@link ResolvedJavaField} for a {@link Field} obtained via reflection. */ ResolvedJavaField lookupJavaField(Field reflectionField); /** * Returns the resolved Java type of the given {@link Constant} object. * * @return {@code null} if {@code constant.isNull() || !constant.kind.isObject()} */ ResolvedJavaType lookupJavaType(Constant constant); /** * Parses a <a * href="http://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.3.3">method * descriptor</a> into a {@link Signature}. The behavior of this method is undefined if the * method descriptor is not well formed. */ Signature parseMethodDescriptor(String methodDescriptor); /** * Encodes a deoptimization action and a deoptimization reason in an integer value. * * @param speculationId a speculation ID returned by SpeculationLog.addSpeculation * * @return the encoded value as an integer */ Constant encodeDeoptActionAndReason(DeoptimizationAction action, DeoptimizationReason reason, int speculationId); DeoptimizationReason decodeDeoptReason(Constant constant); DeoptimizationAction decodeDeoptAction(Constant constant); }