--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.core/src/org/graalvm/compiler/core/match/ComplexMatchValue.java 2016-12-09 00:48:01.097424586 -0800 @@ -0,0 +1,65 @@ +/* + * 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); + } +}