/*
* Copyright (c) 2011, 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
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package org.graalvm.compiler.nodes.virtual;
import org.graalvm.compiler.graph.NodeClass;
import org.graalvm.compiler.nodeinfo.NodeInfo;
import org.graalvm.compiler.nodeinfo.Verbosity;
import org.graalvm.compiler.nodes.FixedNode;
import org.graalvm.compiler.nodes.ValueNode;
import jdk.vm.ci.meta.JavaKind;
import jdk.vm.ci.meta.ResolvedJavaField;
import jdk.vm.ci.meta.ResolvedJavaType;
@NodeInfo(nameTemplate = "VirtualInstance {p#type/s}")
public class VirtualInstanceNode extends VirtualObjectNode {
public static final NodeClass<VirtualInstanceNode> TYPE = NodeClass.create(VirtualInstanceNode.class);
protected final ResolvedJavaType type;
protected final ResolvedJavaField[] fields;
public VirtualInstanceNode(ResolvedJavaType type, boolean hasIdentity) {
this(type, type.getInstanceFields(true), hasIdentity);
}
public VirtualInstanceNode(ResolvedJavaType type, ResolvedJavaField[] fields, boolean hasIdentity) {
this(TYPE, type, fields, hasIdentity);
}
protected VirtualInstanceNode(NodeClass<? extends VirtualInstanceNode> c, ResolvedJavaType type, boolean hasIdentity) {
this(c, type, type.getInstanceFields(true), hasIdentity);
}
protected VirtualInstanceNode(NodeClass<? extends VirtualInstanceNode> c, ResolvedJavaType type, ResolvedJavaField[] fields, boolean hasIdentity) {
super(c, type, hasIdentity);
this.type = type;
this.fields = fields;
}
@Override
public ResolvedJavaType type() {
return type;
}
@Override
public int entryCount() {
return fields.length;
}
public ResolvedJavaField field(int index) {
return fields[index];
}
public ResolvedJavaField[] getFields() {
return fields;
}
@Override
public String toString(Verbosity verbosity) {
if (verbosity == Verbosity.Name) {
return super.toString(Verbosity.Name) + " " + type.toJavaName(false);
} else {
return super.toString(verbosity);
}
}
@Override
public String entryName(int index) {
return fields[index].getName();
}
public int fieldIndex(ResolvedJavaField field) {
// on average fields.length == ~6, so a linear search is fast enough
for (int i = 0; i < fields.length; i++) {
if (fields[i].equals(field)) {
return i;
}
}
return -1;
}
@Override
public int entryIndexForOffset(long constantOffset, JavaKind expectedEntryKind) {
return fieldIndex(type.findInstanceFieldWithOffset(constantOffset, expectedEntryKind));
}
@Override
public JavaKind entryKind(int index) {
assert index >= 0 && index < fields.length;
return fields[index].getJavaKind();
}
@Override
public VirtualInstanceNode duplicate() {
return new VirtualInstanceNode(type, fields, super.hasIdentity());
}
@Override
public ValueNode getMaterializedRepresentation(FixedNode fixed, ValueNode[] entries, LockState locks) {
return new AllocatedObjectNode(this);
}
}