Mercurial > hg > truffle
view graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/Signature.java @ 7230:762717d2cf90
ignore all graal files when building C1/C2
author | Christian Haeubl <haeubl@ssw.jku.at> |
---|---|
date | Fri, 14 Dec 2012 14:39:50 +0100 |
parents | 2463eb24b644 |
children | c07a49b27b89 |
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/* * Copyright (c) 2009, 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; /** * Represents a method signature provided by the runtime. * * @see <a href="http://java.sun.com/docs/books/jvms/second_edition/html/ClassFile.doc.html#7035">Method Descriptors</a> */ public interface Signature { /** * Returns the number of parameters in this signature, adding 1 for a receiver if requested. * * @param receiver true if 1 is to be added to the result for a receiver * @return the number of parameters; + 1 iff {@code receiver == true} */ int getParameterCount(boolean receiver); /** * Gets the parameter type at the specified position. This method returns a {@linkplain ResolvedJavaType resolved} * type if possible but without triggering any class loading or resolution. * * @param index the index into the parameters, with {@code 0} indicating the first parameter * @param accessingClass the context of the type lookup. If accessing class is provided, its class loader is used to * retrieve an existing resolved type. This value can be {@code null} if the caller does not care for a * resolved type. * @return the {@code index}'th parameter type */ JavaType getParameterType(int index, ResolvedJavaType accessingClass); /** * Gets the parameter kind at the specified position. This is the same as calling {@link #getParameterType}. * {@link JavaType#getKind getKind}. * * @param index the index into the parameters, with {@code 0} indicating the first parameter * @return the kind of the parameter at the specified position */ Kind getParameterKind(int index); /** * Gets the return type of this signature. This method will return a {@linkplain ResolvedJavaType resolved} type if * possible but without triggering any class loading or resolution. * * @param accessingClass the context of the type lookup. If accessing class is provided, its class loader is used to * retrieve an existing resolved type. This value can be {@code null} if the caller does not care for a * resolved type. * @return the return type */ JavaType getReturnType(ResolvedJavaType accessingClass); /** * Gets the return kind of this signature. This is the same as calling {@link #getReturnType}. * {@link JavaType#getKind getKind}. */ Kind getReturnKind(); /** * Gets the size, in Java slots, of the parameters to this signature. * * @param withReceiver {@code true} if to add a slot for a receiver object; {@code false} not to include the * receiver * @return the size of the parameters in slots */ int getParameterSlots(boolean withReceiver); }