001/*
002 * Copyright (c) 2014, 2014, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.lir;
024
025import java.util.*;
026
027import jdk.internal.jvmci.meta.*;
028
029import com.oracle.graal.lir.LIRInstruction.OperandFlag;
030import com.oracle.graal.lir.LIRInstruction.OperandMode;
031
032/**
033 * Functional interface for iterating over a list of values without modifying them. See
034 * {@link InstructionValueProcedure} for a version that can modify values.
035 */
036@FunctionalInterface
037public interface InstructionValueConsumer {
038
039    /**
040     * Iterator method to be overwritten.
041     *
042     * @param instruction The current instruction.
043     * @param value The value that is iterated.
044     * @param mode The operand mode for the value.
045     * @param flags A set of flags for the value.
046     */
047    void visitValue(LIRInstruction instruction, Value value, OperandMode mode, EnumSet<OperandFlag> flags);
048}