| /* |
| * Copyright (c) 2014, 2015, 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 org.graalvm.compiler.core.match; |
| |
| import org.graalvm.compiler.core.common.LIRKind; |
| import org.graalvm.compiler.core.gen.NodeLIRBuilder; |
| |
| import jdk.vm.ci.meta.Value; |
| |
| /** |
| * A wrapper value for the lazy evaluation of a complex match. There's an intermediate class for the |
| * closure because Value is serializable which is a hassle for the little inner classes which |
| * usually occur here. |
| */ |
| public class ComplexMatchValue extends Value { |
| |
| /** |
| * This is the Value of a node which was matched as part of a complex match. The value isn't |
| * actually useable but this marks it as having been evaluated. |
| */ |
| public static final Value INTERIOR_MATCH = new Value(LIRKind.Illegal) { |
| |
| @Override |
| public String toString() { |
| return "INTERIOR_MATCH"; |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| // This class is a singleton |
| return other != null && getClass() == other.getClass(); |
| } |
| }; |
| |
| final ComplexMatchResult result; |
| |
| public ComplexMatchValue(ComplexMatchResult result) { |
| super(LIRKind.Illegal); |
| this.result = result; |
| } |
| |
| public Value evaluate(NodeLIRBuilder builder) { |
| return result.evaluate(builder); |
| } |
| } |