001/*
002 * Copyright (c) 2011, 2015, 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.nodes.extended;
024
025import jdk.internal.jvmci.meta.*;
026
027import com.oracle.graal.compiler.common.type.*;
028import com.oracle.graal.compiler.common.spi.*;
029import com.oracle.graal.graph.*;
030import com.oracle.graal.nodeinfo.*;
031import com.oracle.graal.nodes.*;
032import com.oracle.graal.nodes.memory.*;
033import com.oracle.graal.nodes.spi.*;
034
035/**
036 * A node that represents an exception thrown implicitly by a Java bytecode. It can be lowered to
037 * either a {@linkplain ForeignCallDescriptor foreign} call or a pre-allocated exception object.
038 */
039@NodeInfo
040public final class BytecodeExceptionNode extends AbstractMemoryCheckpoint implements Lowerable, MemoryCheckpoint.Single {
041
042    public static final NodeClass<BytecodeExceptionNode> TYPE = NodeClass.create(BytecodeExceptionNode.class);
043    protected final Class<? extends Throwable> exceptionClass;
044    @Input NodeInputList<ValueNode> arguments;
045
046    public BytecodeExceptionNode(MetaAccessProvider metaAccess, Class<? extends Throwable> exceptionClass, ValueNode... arguments) {
047        super(TYPE, StampFactory.exactNonNull(metaAccess.lookupJavaType(exceptionClass)));
048        this.exceptionClass = exceptionClass;
049        this.arguments = new NodeInputList<>(this, arguments);
050    }
051
052    public Class<? extends Throwable> getExceptionClass() {
053        return exceptionClass;
054    }
055
056    @Override
057    public String toString(Verbosity verbosity) {
058        if (verbosity == Verbosity.Name) {
059            return super.toString(verbosity) + "#" + exceptionClass.getSimpleName();
060        }
061        return super.toString(verbosity);
062    }
063
064    public LocationIdentity getLocationIdentity() {
065        return LocationIdentity.any();
066    }
067
068    public void lower(LoweringTool tool) {
069        tool.getLowerer().lower(this, tool);
070    }
071
072    public NodeInputList<ValueNode> getArguments() {
073        return arguments;
074    }
075}