Mercurial > hg > truffle
diff graal/com.oracle.max.cri/src/com/sun/cri/ri/RiType.java @ 3733:e233f5660da4
Added Java files from Maxine project.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 19:59:18 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.max.cri/src/com/sun/cri/ri/RiType.java Sat Dec 17 19:59:18 2011 +0100 @@ -0,0 +1,100 @@ +/* + * 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.sun.cri.ri; + +import com.sun.cri.ci.*; + +/** + * Represents a resolved or unresolved type in the compiler-runtime interface. Types include primitives, objects, {@code void}, + * and arrays thereof. + */ +public interface RiType { + + /** + * Represents each of the several different parts of the runtime representation of + * a type which compiled code may need to reference individually. These may or may not be + * different objects or data structures, depending on the runtime system. + */ + public enum Representation { + /** + * The runtime representation of the data structure containing the static fields of this type. + */ + StaticFields, + + /** + * The runtime representation of the Java class object of this type. + */ + JavaClass, + + /** + * The runtime representation of the "hub" of this type--that is, the closest part of the type + * representation which is typically stored in the object header. + */ + ObjectHub, + + /** + * The runtime representation of the type information for an object, which is typically used + * for subtype tests. + */ + TypeInfo + } + + /** + * Gets the name of this type in internal form. The following are examples of strings returned by this method: + * <pre> + * "Ljava/lang/Object;" + * "I" + * "[[B" + * </pre> + * + * @return the name of this type in internal form + */ + String name(); + + /** + * For array types, gets the type of the components. + * @return the component type of this array type + */ + RiType componentType(); + + /** + * Gets the type representing an array with elements of this type. + * @return a new compiler interface type representing an array of this type + */ + RiType arrayOf(); + + /** + * Gets the kind of this compiler interface type. + * @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 + */ + CiKind kind(boolean architecture); + + /** + * Gets the kind used to represent the specified part of this type. + * @param r the part of the this type + * @return the kind of constants for the specified part of the type + */ + CiKind getRepresentationKind(Representation r); +}