| /* |
| * Copyright (c) 2016, 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 org.graalvm.compiler.graph; |
| |
| import java.util.Objects; |
| |
| import jdk.vm.ci.code.BytecodePosition; |
| import jdk.vm.ci.code.CodeUtil; |
| import jdk.vm.ci.meta.JavaConstant; |
| import jdk.vm.ci.meta.MetaUtil; |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| |
| public class NodeSourcePosition extends BytecodePosition { |
| |
| /** |
| * The receiver of the method this frame refers to. |
| */ |
| private final JavaConstant receiver; |
| |
| public NodeSourcePosition(JavaConstant receiver, NodeSourcePosition caller, ResolvedJavaMethod method, int bci) { |
| super(caller, method, bci); |
| this.receiver = receiver; |
| assert receiver == null || method.getDeclaringClass().isInstance(receiver); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == this) { |
| return true; |
| } |
| if (obj != null && getClass() == obj.getClass()) { |
| NodeSourcePosition that = (NodeSourcePosition) obj; |
| if (this.getBCI() == that.getBCI() && Objects.equals(this.getMethod(), that.getMethod()) && Objects.equals(this.getCaller(), that.getCaller()) && |
| Objects.equals(this.receiver, that.receiver)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public JavaConstant getReceiver() { |
| return receiver; |
| } |
| |
| @Override |
| public NodeSourcePosition getCaller() { |
| return (NodeSourcePosition) super.getCaller(); |
| } |
| |
| public NodeSourcePosition addCaller(JavaConstant newCallerReceiver, NodeSourcePosition link) { |
| if (getCaller() == null) { |
| assert newCallerReceiver == null || receiver == null : "replacing receiver"; |
| return new NodeSourcePosition(newCallerReceiver, link, getMethod(), getBCI()); |
| } else { |
| return new NodeSourcePosition(receiver, getCaller().addCaller(newCallerReceiver, link), getMethod(), getBCI()); |
| } |
| } |
| |
| public NodeSourcePosition addCaller(NodeSourcePosition link) { |
| return addCaller(null, link); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(100); |
| NodeSourcePosition pos = this; |
| while (pos != null) { |
| MetaUtil.appendLocation(sb.append("at "), pos.getMethod(), pos.getBCI()); |
| if (pos.receiver != null) { |
| sb.append("receiver=" + pos.receiver + " "); |
| } |
| pos = pos.getCaller(); |
| if (pos != null) { |
| sb.append(CodeUtil.NEW_LINE); |
| } |
| } |
| return sb.toString(); |
| } |
| } |