Mercurial > hg > graal-compiler
diff graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiSignature.java @ 4199:aaac4894175c
Renamed cri packages from sun to oracle.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
---|---|
date | Tue, 03 Jan 2012 16:29:28 +0100 |
parents | graal/com.oracle.max.cri/src/com/sun/cri/ri/RiSignature.java@e233f5660da4 |
children | 14a00ee82980 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiSignature.java Tue Jan 03 16:29:28 2012 +0100 @@ -0,0 +1,95 @@ +/* + * 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, RiType 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); +}