Mercurial > hg > truffle
view graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/util/HashSetNodeEventListener.java @ 21543:93c50cefb9e8
moved GraalInternalError to com.oracle.jvmci.common and renamed it to JVMCIError (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 25 May 2015 23:30:34 +0200 |
parents | 220d7f242e57 |
children |
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/* * Copyright (c) 2013, 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.graal.phases.common.util; import java.util.*; import com.oracle.graal.graph.Graph.NodeEvent; import com.oracle.graal.graph.Graph.NodeEventListener; import com.oracle.graal.graph.*; /** * A simple {@link NodeEventListener} implementation that accumulates event nodes in a * {@link HashSet}. */ public class HashSetNodeEventListener implements NodeEventListener { private final Set<Node> nodes; private final Set<NodeEvent> filter; /** * Creates a {@link NodeEventListener} that collects nodes from all events. */ public HashSetNodeEventListener() { this.nodes = Node.newSet(); this.filter = EnumSet.allOf(NodeEvent.class); } /** * Creates a {@link NodeEventListener} that collects nodes from all events that match a given * filter. */ public HashSetNodeEventListener(Set<NodeEvent> filter) { this.nodes = Node.newSet(); this.filter = filter; } /** * Excludes a given event from those for which nodes are collected. */ public HashSetNodeEventListener exclude(NodeEvent e) { filter.remove(e); return this; } public void event(NodeEvent e, Node node) { if (filter.contains(e)) { nodes.add(node); } } /** * Gets the set being used to accumulate the nodes communicated to this listener. */ public Set<Node> getNodes() { return nodes; } }