Mercurial > hg > truffle
diff graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiConstantPool.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/RiConstantPool.java@e233f5660da4 |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiConstantPool.java Tue Jan 03 16:29:28 2012 +0100 @@ -0,0 +1,93 @@ +/* + * 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; + +/** + * Represents the runtime representation of the constant pool that is + * used by the compiler when parsing bytecode. The {@code lookupXXX} methods look up a constant + * pool entry without performing resolution, and are used during compilation. + */ +public interface RiConstantPool { + + /** + * Makes sure that the type referenced by the specified constant pool entry is loaded and + * initialized. This can be used to compile time resolve a type. It works for field, method, + * or type constant pool entries. + * @param cpi the index of the constant pool entry that references the type + * @param opcode the opcode of the instruction that references the type + */ + void loadReferencedType(int cpi, int opcode); + + /** + * Looks up a reference to a field. If {@code opcode} is non-negative, then resolution checks + * specific to the JVM instruction it denotes are performed if the field is already resolved. + * Should any of these checks fail, an {@linkplain RiField#isResolved() unresolved} + * field reference is returned. + * + * @param cpi the constant pool index + * @param opcode the opcode of the instruction for which the lookup is being performed or {@code -1} + * @return a reference to the field at {@code cpi} in this pool + * @throws ClassFormatError if the entry at {@code cpi} is not a field + */ + RiField lookupField(int cpi, int opcode); + + /** + * Looks up a reference to a method. If {@code opcode} is non-negative, then resolution checks + * specific to the JVM instruction it denotes are performed if the method is already resolved. + * Should any of these checks fail, an {@linkplain RiMethod#isResolved() unresolved} + * method reference is returned. + * + * @param cpi the constant pool index + * @param opcode the opcode of the instruction for which the lookup is being performed or {@code -1} + * @return a reference to the method at {@code cpi} in this pool + * @throws ClassFormatError if the entry at {@code cpi} is not a method + */ + RiMethod lookupMethod(int cpi, int opcode); + + /** + * Looks up a reference to a type. If {@code opcode} is non-negative, then resolution checks + * specific to the JVM instruction it denotes are performed if the type is already resolved. + * Should any of these checks fail, an {@linkplain RiType#isResolved() unresolved} + * type reference is returned. + * + * @param cpi the constant pool index + * @param opcode the opcode of the instruction for which the lookup is being performed or {@code -1} + * @return a reference to the compiler interface type + */ + RiType lookupType(int cpi, int opcode); + + /** + * Looks up a method signature. + * + * @param cpi the constant pool index + * @return the method signature at index {@code cpi} in this constant pool + */ + RiSignature lookupSignature(int cpi); + + /** + * Looks up a constant at the specified index. + * @param cpi the constant pool index + * @return the {@code CiConstant} instance representing the constant + */ + Object lookupConstant(int cpi); +}