001/*
002 * Copyright (c) 2013, 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.truffle.phases;
024
025import com.oracle.graal.graph.*;
026import com.oracle.graal.nodes.*;
027import com.oracle.graal.nodes.java.*;
028import com.oracle.graal.nodes.util.*;
029import com.oracle.graal.phases.*;
030import com.oracle.graal.truffle.nodes.frame.*;
031
032/**
033 * Compiler phase for verifying that the Truffle virtual frame does not escape and can therefore be
034 * escape analyzed.
035 */
036public class VerifyFrameDoesNotEscapePhase extends Phase {
037
038    @Override
039    protected void run(StructuredGraph graph) {
040        for (NewFrameNode virtualFrame : graph.getNodes(NewFrameNode.TYPE)) {
041            for (MethodCallTargetNode callTarget : virtualFrame.usages().filter(MethodCallTargetNode.class)) {
042                if (callTarget.invoke() != null) {
043                    String properties = callTarget.getDebugProperties().toString();
044                    String arguments = callTarget.arguments().toString();
045                    Throwable exception = new VerificationError("Frame escapes at: %s#%s\nproperties:%s\narguments: %s", callTarget, callTarget.targetMethod(), properties, arguments);
046                    throw GraphUtil.approxSourceException(callTarget, exception);
047                }
048            }
049        }
050    }
051}