Mercurial > hg > graal-compiler
view graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiSignature.java @ 5481:e26e6dca0bcf
added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 05 Jun 2012 21:43:42 +0200 |
parents | 14a00ee82980 |
children | 438ab53efdd0 |
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/* * Copyright (c) 2009, 2011, 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.max.cri.ri; import com.oracle.max.cri.ci.*; /** * 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 RiSignature { /** * Gets the number of arguments 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 arguments + 1 iff {@code receiver == true} */ int argumentCount(boolean receiver); /** * Gets the argument type at the specified position. This method will return a * {@linkplain RiType#isResolved() 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 resolved, 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 argument type */ RiType argumentTypeAt(int index, RiResolvedType accessingClass); /** * Gets the argument kind at the specified position. * @param index the index into the parameters, with {@code 0} indicating the first parameter * @param architecture When true, the architecture-specific kind used for emitting machine code is returned. * When false, the kind according to the Java specification is returned. * @return the kind of the argument at the specified position */ CiKind argumentKindAt(int index, boolean architecture); /** * Gets the return type of this signature. This method will return a * {@linkplain RiResolvedType resolved} type if possible but without * triggering any class loading or resolution. * * @param accessingClass the context of the type lookup. If accessing class is resolved, 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 compiler interface type representing the return type */ RiType returnType(RiType accessingClass); /** * Gets the return kind of this signature. * @param architectureSpecific When true, the architecture-specific kind used for emitting machine code is returned. * When false, the kind according to the Java specification is returned. * @return the return kind */ CiKind returnKind(boolean architectureSpecific); /** * Converts this signature to a string. * @return the signature as a string */ String asString(); /** * Gets the size, in Java slots, of the arguments 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 arguments in slots */ int argumentSlots(boolean withReceiver); }