Mercurial > hg > truffle
annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiResolvedMethod.java @ 4266:e2499e6d8aa7
Merge
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 11 Jan 2012 16:31:46 +0100 |
parents | aaac4894175c |
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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.oracle.max.cri.ri; |
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24 |
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25 import java.lang.annotation.*; |
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26 import java.lang.reflect.*; |
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27 import java.util.*; |
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28 |
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29 import com.oracle.max.cri.ci.*; |
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30 |
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31 |
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32 /** |
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33 * Represents resolved methods. Methods, like fields and types, are resolved through |
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34 * {@link RiConstantPool constant pools}, and their actual implementation is provided by the {@link RiRuntime runtime} |
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35 * to the compiler. |
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36 */ |
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37 public interface RiResolvedMethod extends RiMethod { |
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38 |
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39 /** |
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40 * Gets the bytecode of the method, if the method {@linkplain #isResolved()} and has code. |
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41 * @return the bytecode of the method or {@code null} if none is available |
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42 */ |
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43 byte[] code(); |
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44 |
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45 /** |
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46 * Gets the size of the bytecode of the method, if the method {@linkplain #isResolved()} and has code. |
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47 * @return the size of the bytecode in bytes, or 0 if no bytecode is available |
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48 */ |
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49 int codeSize(); |
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50 |
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51 /** |
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52 * Gets the symbol used to link this method if it is native, otherwise {@code null}. |
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53 */ |
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54 String jniSymbol(); |
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55 |
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56 /** |
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57 * Gets the type in which this method is declared. |
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58 * @return the type in which this method is declared |
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59 */ |
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60 RiResolvedType holder(); |
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61 |
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62 /** |
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63 * Gets the maximum number of locals used in this method's bytecode. |
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64 * @return the maximum number of locals |
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65 */ |
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66 int maxLocals(); |
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67 |
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68 /** |
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69 * Gets the maximum number of stack slots used in this method's bytecode. |
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70 * @return the maximum number of stack slots |
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71 */ |
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72 int maxStackSize(); |
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73 |
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74 /** |
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75 * Checks whether this method has balanced monitor operations. |
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76 * @return {@code true} if the method has balanced monitor operations |
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77 */ |
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78 boolean hasBalancedMonitors(); |
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79 |
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80 /** |
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81 * Gets the access flags for this method. Only the flags specified in the JVM specification |
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82 * will be included in the returned mask. The utility methods in the {@link Modifier} class |
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83 * should be used to query the returned mask for the presence/absence of individual flags. |
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84 * @return the mask of JVM defined method access flags defined for this method |
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85 */ |
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86 int accessFlags(); |
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87 |
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88 /** |
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89 * Checks whether this method is a leaf method. |
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90 * @return {@code true} if the method is a leaf method (that is, is final or private) |
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91 */ |
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92 boolean isLeafMethod(); |
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93 |
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94 /** |
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95 * Checks whether this method is a class initializer. |
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96 * @return {@code true} if the method is a class initializer |
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97 */ |
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98 boolean isClassInitializer(); |
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99 |
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100 /** |
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101 * Checks whether this method is a constructor. |
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102 * @return {@code true} if the method is a constructor |
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103 */ |
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104 boolean isConstructor(); |
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105 |
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106 /** |
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107 * Checks whether this method has been overridden. Decisions made based |
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108 * on a method being overridden must be registered as dependencies. |
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109 * @return {@code true} if the method has been overridden |
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110 */ |
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111 boolean isOverridden(); |
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112 |
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113 /** |
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114 * Checks whether the compiler can insert safepoint polls in this method. |
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115 * @return {@code true} if the method cannot have safepoint polls inserted |
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116 */ |
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117 boolean noSafepointPolls(); |
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118 |
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119 /** |
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120 * Gets a map from bytecode indexes to bit maps denoting the live locals at that position. |
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121 * If a non-null array is return, its length is guaranteed to be equal to {@code code().length}. |
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122 * |
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123 * @return the liveness map if it is available; {@code null} otherwise |
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124 */ |
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125 CiBitMap[] livenessMap(); |
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126 |
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127 /** |
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128 * Checks whether this method can be statically bound (that is, it is final or private or static). |
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129 * @return {@code true} if this method can be statically bound |
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130 */ |
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131 boolean canBeStaticallyBound(); |
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132 |
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133 /** |
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134 * Gets the list of exception handlers for this method. |
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135 * @return the list of exception handlers |
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136 */ |
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137 RiExceptionHandler[] exceptionHandlers(); |
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138 |
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139 /** |
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140 * Gets a stack trace element for this method and a given bytecode index. |
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141 */ |
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142 StackTraceElement toStackTraceElement(int bci); |
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143 |
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144 /** |
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145 * Temporary work-around to support the @ACCESSOR Maxine annotation. |
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146 * Non-Maxine VMs should just return {@code null}. |
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147 */ |
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148 RiResolvedType accessor(); |
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149 |
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150 /** |
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151 * Gets the intrinsic id of this method. |
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152 */ |
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153 String intrinsic(); |
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154 |
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155 /** |
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156 * Provides an estimate of how often this method has been executed. |
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157 * @return The number of invocations, or -1 if this information isn't available. |
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158 */ |
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159 int invocationCount(); |
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160 |
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161 /** |
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162 * Returns an estimate of hot often an exception was seen at the given bytecode. |
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163 * @return The estimate in percent (0-100), with 0 meaning never and 100 meaning always, or -1 if this information isn't available. |
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164 */ |
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165 int exceptionProbability(int bci); |
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166 |
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167 /** |
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168 * Returns the type profile of the instruction at the given byte code index. |
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169 * @return The RiTypeProfile information, or null if it isn't available. |
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170 */ |
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171 RiTypeProfile typeProfile(int bci); |
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172 |
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173 /** |
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174 * Returns an estimate of how often the branch at the given byte code was taken. |
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175 * @return The estimated probability, with 0.0 meaning never and 1.0 meaning always, or -1 if this information isn't available. |
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176 */ |
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177 double branchProbability(int bci); |
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178 |
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179 /** |
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180 * Returns an estimate of how often the branches of the switch at the given byte code were taken. |
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181 * @return The estimated probability, with 0.0 meaning never and 1.0 meaning always, or NULL if this information isn't available. |
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182 * The default case is specified at the last index. |
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183 */ |
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184 double[] switchProbability(int bci); |
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185 |
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186 /** |
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187 * Returns a map that the compiler can use to store objects that should survive the current compilation. |
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188 */ |
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189 Map<Object, Object> compilerStorage(); |
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190 |
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191 /** |
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192 * Returns a pointer to the method's constant pool. |
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193 * @return the constant pool |
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194 */ |
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195 RiConstantPool getConstantPool(); |
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196 |
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197 /** |
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198 * Returns this method's annotation of a specified type. |
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199 * |
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200 * @param annotationClass the Class object corresponding to the annotation type |
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201 * @return the annotation of type {@code annotationClass} for this method if present, else null |
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202 */ |
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203 <T extends Annotation> T getAnnotation(Class<T> annotationClass); |
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204 |
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205 /** |
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206 * Returns an array of arrays that represent the annotations on the formal |
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207 * parameters, in declaration order, of this method. |
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208 * |
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209 * @see Method#getParameterAnnotations() |
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210 * @see CiUtil#getParameterAnnotation(int, RiResolvedMethod) |
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211 */ |
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212 Annotation[][] getParameterAnnotations(); |
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213 |
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214 /** |
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215 * Returns an array of {@link Type} objects that represent the formal |
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216 * parameter types, in declaration order, of this method. |
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217 * |
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218 * @see Method#getGenericParameterTypes() |
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219 */ |
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220 Type[] getGenericParameterTypes(); |
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221 |
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222 /** |
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223 * Returns a {@link Type} object that represents the formal return type of this method. |
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224 * |
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225 * @see Method#getGenericReturnType() |
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226 */ |
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227 Type getGenericReturnType(); |
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228 } |