Mercurial > hg > graal-compiler
annotate graal/GraalCompiler/src/com/sun/c1x/ir/Invoke.java @ 2829:27c00b180416
fix merge error
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Tue, 31 May 2011 09:51:59 +0200 |
parents | d6f3dbb4e3b5 |
children | bfce42cd9c07 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.sun.c1x.ir; |
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24 |
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25 import com.oracle.graal.graph.*; |
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26 import com.sun.c1x.debug.*; |
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27 import com.sun.c1x.util.*; |
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28 import com.sun.cri.bytecode.*; |
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29 import com.sun.cri.ci.*; |
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30 import com.sun.cri.ri.*; |
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31 |
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32 /** |
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33 * The {@code Invoke} instruction represents all kinds of method calls. |
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34 */ |
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35 public final class Invoke extends StateSplit implements ExceptionEdgeInstruction { |
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36 |
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37 private final int argumentCount; |
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38 |
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39 private static final int SUCCESSOR_COUNT = 1; |
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40 private static final int SUCCESSOR_EXCEPTION_EDGE = 0; |
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41 |
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42 @Override |
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43 protected int inputCount() { |
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44 return super.inputCount() + argumentCount; |
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45 } |
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46 |
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47 @Override |
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48 protected int successorCount() { |
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49 return super.successorCount() + SUCCESSOR_COUNT; |
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50 } |
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51 |
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52 /** |
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53 * The list of instructions that produce input for this instruction. |
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54 */ |
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55 public Value argument(int index) { |
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56 assert index >= 0 && index < argumentCount; |
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57 return (Value) inputs().get(super.inputCount() + index); |
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58 } |
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59 |
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60 public Value setArgument(int index, Value n) { |
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61 assert index >= 0 && index < argumentCount; |
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62 return (Value) inputs().set(super.inputCount() + index, n); |
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63 } |
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64 |
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65 public int argumentCount() { |
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66 return argumentCount; |
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67 } |
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68 |
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69 /** |
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70 * The entry to the exception dispatch chain for this invoke. |
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71 */ |
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72 @Override |
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73 public Instruction exceptionEdge() { |
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74 return (Instruction) successors().get(super.successorCount() + SUCCESSOR_EXCEPTION_EDGE); |
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75 } |
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76 |
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77 public Instruction setExceptionEdge(Instruction n) { |
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78 return (Instruction) successors().set(super.successorCount() + SUCCESSOR_EXCEPTION_EDGE, n); |
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79 } |
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80 |
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81 public final int opcode; |
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82 public final RiMethod target; |
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83 public final RiType returnType; |
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84 public final int bci; // XXX needed because we can not compute the bci from the sateBefore bci of this Invoke was optimized from INVOKEINTERFACE to INVOKESPECIAL |
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85 |
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86 /** |
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87 * Constructs a new Invoke instruction. |
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88 * |
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89 * @param opcode the opcode of the invoke |
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90 * @param result the result type |
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91 * @param args the list of instructions producing arguments to the invocation, including the receiver object |
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92 * @param isStatic {@code true} if this call is static (no receiver object) |
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93 * @param target the target method being called |
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94 * @param stateBefore the state before executing the invocation |
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95 */ |
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97 super(result, args.length, SUCCESSOR_COUNT, graph); |
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98 this.opcode = opcode; |
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99 this.target = target; |
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100 this.returnType = returnType; |
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101 this.bci = bci; |
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102 |
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103 this.argumentCount = args.length; |
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104 for (int i = 0; i < args.length; i++) { |
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105 setArgument(i, args[i]); |
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106 } |
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107 } |
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108 |
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109 /** |
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110 * Gets the opcode of this invoke instruction. |
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111 * @return the opcode |
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112 */ |
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113 public int opcode() { |
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114 return opcode; |
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115 } |
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116 |
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117 /** |
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118 * Checks whether this is an invocation of a static method. |
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119 * @return {@code true} if the invocation is a static invocation |
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120 */ |
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121 public boolean isStatic() { |
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122 return opcode == Bytecodes.INVOKESTATIC; |
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123 } |
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124 |
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125 @Override |
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126 public RiType declaredType() { |
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127 return returnType; |
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128 } |
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129 |
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130 /** |
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131 * Gets the instruction that produces the receiver object for this invocation, if any. |
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132 * @return the instruction that produces the receiver object for this invocation if any, {@code null} if this |
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133 * invocation does not take a receiver object |
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134 */ |
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135 public Value receiver() { |
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136 assert !isStatic(); |
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137 return argument(0); |
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138 } |
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139 |
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140 /** |
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141 * Gets the target method for this invocation instruction. |
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142 * @return the target method |
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143 */ |
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144 public RiMethod target() { |
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145 return target; |
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146 } |
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147 |
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148 /** |
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149 * Checks whether this invocation has a receiver object. |
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150 * @return {@code true} if this invocation has a receiver object; {@code false} otherwise, if this is a |
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151 * static call |
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152 */ |
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153 public boolean hasReceiver() { |
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154 return !isStatic(); |
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155 } |
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156 |
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157 @Override |
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158 public void accept(ValueVisitor v) { |
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159 v.visitInvoke(this); |
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160 } |
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161 |
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162 public CiKind[] signature() { |
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163 CiKind receiver = isStatic() ? null : target.holder().kind(); |
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164 return Util.signatureToKinds(target.signature(), receiver); |
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165 } |
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166 |
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167 @Override |
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168 public void print(LogStream out) { |
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169 int argStart = 0; |
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170 if (hasReceiver()) { |
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171 out.print(receiver()).print('.'); |
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172 argStart = 1; |
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173 } |
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174 |
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175 RiMethod target = target(); |
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176 out.print(target.name()).print('('); |
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177 for (int i = argStart; i < argumentCount; i++) { |
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178 if (i > argStart) { |
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179 out.print(", "); |
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180 } |
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181 out.print(argument(i)); |
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182 } |
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183 out.print(CiUtil.format(") [method: %H.%n(%p):%r]", target, false)); |
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184 } |
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185 |
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186 @Override |
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187 public Node copy(Graph into) { |
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189 x.setNonNull(isNonNull()); |
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190 return x; |
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191 } |
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192 } |