1 /*
   2  * Copyright (c) 2014, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.lir;
  24 
  25 import java.util.EnumSet;
  26 
  27 import org.graalvm.compiler.lir.LIRInstruction.OperandFlag;
  28 import org.graalvm.compiler.lir.LIRInstruction.OperandMode;
  29 
  30 import jdk.vm.ci.meta.Value;
  31 
  32 /**
  33  * Functional interface for iterating over a list of values without modifying them. See
  34  * {@link InstructionValueProcedure} for a version that can modify values.
  35  */
  36 @FunctionalInterface
  37 public interface InstructionValueConsumer {
  38 
  39     /**
  40      * Iterator method to be overwritten.
  41      *
  42      * @param instruction The current instruction.
  43      * @param value The value that is iterated.
  44      * @param mode The operand mode for the value.
  45      * @param flags A set of flags for the value.
  46      */
  47     void visitValue(LIRInstruction instruction, Value value, OperandMode mode, EnumSet<OperandFlag> flags);
  48 }