001/*
002 * Copyright (c) 2011, 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;
024
025import jdk.internal.jvmci.meta.*;
026
027import com.oracle.graal.compiler.common.type.*;
028import com.oracle.graal.graph.*;
029import com.oracle.graal.nodes.CallTargetNode.InvokeKind;
030import com.oracle.graal.nodes.extended.*;
031import com.oracle.graal.nodes.java.*;
032import com.oracle.graal.nodes.spi.*;
033import com.oracle.graal.nodes.type.*;
034
035public interface Invoke extends StateSplit, Lowerable, DeoptimizingNode.DeoptDuring, GuardedNode, UncheckedInterfaceProvider {
036
037    FixedNode next();
038
039    void setNext(FixedNode x);
040
041    CallTargetNode callTarget();
042
043    int bci();
044
045    FixedNode asNode();
046
047    Node predecessor();
048
049    void intrinsify(Node node);
050
051    boolean useForInlining();
052
053    void setUseForInlining(boolean value);
054
055    /**
056     * True if this invocation is almost certainly polymorphic, false when in doubt.
057     */
058    boolean isPolymorphic();
059
060    void setPolymorphic(boolean value);
061
062    /**
063     * Returns the {@linkplain ResolvedJavaMethod method} from which this invoke is executed. This
064     * is the caller method and in the case of inlining may be different from the method of the
065     * graph this node is in.
066     *
067     * @return the method from which this invoke is executed.
068     */
069    default ResolvedJavaMethod getContextMethod() {
070        FrameState state = stateAfter();
071        if (state == null) {
072            state = stateDuring();
073        }
074        return state.method();
075    }
076
077    /**
078     * Returns the {@linkplain ResolvedJavaType type} from which this invoke is executed. This is
079     * the declaring type of the caller method.
080     *
081     * @return the type from which this invoke is executed.
082     */
083    default ResolvedJavaType getContextType() {
084        return getContextMethod().getDeclaringClass();
085    }
086
087    @Override
088    default void computeStateDuring(FrameState stateAfter) {
089        FrameState newStateDuring = stateAfter.duplicateModifiedDuringCall(bci(), asNode().getKind());
090        setStateDuring(newStateDuring);
091    }
092
093    default ValueNode getReceiver() {
094        assert getInvokeKind().hasReceiver();
095        return callTarget().arguments().get(0);
096    }
097
098    default ResolvedJavaType getReceiverType() {
099        ResolvedJavaType receiverType = StampTool.typeOrNull(getReceiver());
100        if (receiverType == null) {
101            receiverType = ((MethodCallTargetNode) callTarget()).targetMethod().getDeclaringClass();
102        }
103        return receiverType;
104    }
105
106    default InvokeKind getInvokeKind() {
107        return callTarget().invokeKind();
108    }
109
110    default Stamp uncheckedStamp() {
111        if (callTarget() instanceof MethodCallTargetNode) {
112            MethodCallTargetNode methodCallTargetNode = (MethodCallTargetNode) callTarget();
113            return UncheckedInterfaceProvider.uncheckedOrNull(methodCallTargetNode.returnType(), asNode().stamp());
114        }
115        return null;
116    }
117}