Mercurial > hg > truffle
view graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/MetaAccessProvider.java @ 7044:34753b057324
added unit tests for JavaType, JavaMethod and ResolvedJavaMethod
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 27 Nov 2012 16:09:05 +0100 |
parents | 62818f156081 |
children | 6a16788a29a6 |
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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.*; /** * Interface implemented by the runtime to allow access to its metadata. */ 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); /** * Compares two constants for equality. * This is used instead of {@link Constant#equals(Object)} in case the runtime * has an interpretation for object equality other than {@code x.asObject() == y.asObject()}. * For primitive constants, this is equivalent to calling {@code x.equals(y)}. * The equality relationship is symmetric. * * @return {@code true} if the two parameters represent the same runtime object, {@code false} otherwise */ boolean constantEquals(Constant x, Constant y); /** * Returns the length of an array that is wrapped in a {@link Constant} object. * * @throws IllegalArgumentException if {@code array} is not an array */ int lookupArrayLength(Constant array); }