Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.meta/src/jdk/vm/ci/meta/ResolvedJavaMethod.java @ 23718:0bd91cd9869d
need to be able to copy internal arrays from LocalVariableTable and LineNumberTable (JDK-8160647)
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 30 Jun 2016 22:08:57 +0200 |
parents | ae27c683c128 |
children | 6542cd8da2da |
rev | line source |
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1 /* |
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2 * Copyright (c) 2009, 2014, 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 jdk.vm.ci.meta; |
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24 |
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25 import java.lang.annotation.Annotation; |
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26 import java.lang.invoke.MethodHandle; |
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27 import java.lang.reflect.AnnotatedElement; |
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28 import java.lang.reflect.Array; |
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29 import java.lang.reflect.Method; |
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30 import java.lang.reflect.Modifier; |
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31 import java.lang.reflect.Type; |
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32 |
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33 /** |
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34 * Represents a resolved Java method. Methods, like fields and types, are resolved through |
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35 * {@link ConstantPool constant pools}. |
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36 */ |
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37 public interface ResolvedJavaMethod extends JavaMethod, InvokeTarget, ModifiersProvider, AnnotatedElement { |
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38 |
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39 /** |
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40 * Returns the bytecode of this method, if the method has code. The returned byte array does not |
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41 * contain breakpoints or non-Java bytecodes. This may return null if the |
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42 * {@link #getDeclaringClass() holder} is not {@link ResolvedJavaType#isLinked() linked}. |
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43 * |
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44 * The contained constant pool indices may not be the ones found in the original class file but |
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45 * they can be used with the JVMCI API (e.g. methods in {@link ConstantPool}). |
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46 * |
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47 * @return the bytecode of the method, or {@code null} if {@code getCodeSize() == 0} or if the |
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48 * code is not ready. |
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49 */ |
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50 byte[] getCode(); |
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51 |
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52 /** |
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53 * Returns the size of the bytecode of this method, if the method has code. This is equivalent |
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54 * to {@link #getCode()}. {@code length} if the method has code. |
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55 * |
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56 * @return the size of the bytecode in bytes, or 0 if no bytecode is available |
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57 */ |
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58 int getCodeSize(); |
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59 |
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60 /** |
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61 * Returns the {@link ResolvedJavaType} object representing the class or interface that declares |
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62 * this method. |
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63 */ |
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64 ResolvedJavaType getDeclaringClass(); |
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65 |
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66 /** |
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67 * Returns the maximum number of locals used in this method's bytecodes. |
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68 */ |
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69 int getMaxLocals(); |
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70 |
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71 /** |
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72 * Returns the maximum number of stack slots used in this method's bytecodes. |
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73 */ |
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74 int getMaxStackSize(); |
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75 |
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76 /** |
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77 * {@inheritDoc} |
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78 * <p> |
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79 * Only the {@linkplain Modifier#methodModifiers() method flags} specified in the JVM |
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80 * specification will be included in the returned mask. |
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81 */ |
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82 int getModifiers(); |
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83 |
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84 default boolean isFinal() { |
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85 return ModifiersProvider.super.isFinalFlagSet(); |
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86 } |
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87 |
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88 /** |
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89 * Determines if this method is a synthetic method as defined by the Java Language |
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90 * Specification. |
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91 */ |
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92 default boolean isSynthetic() { |
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93 return (SYNTHETIC & getModifiers()) == SYNTHETIC; |
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94 } |
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95 |
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96 /** |
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97 * Checks that the method is a |
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98 * <a href="http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.6">varargs</a> |
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99 * method. |
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100 * |
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101 * @return whether the method is a varargs method |
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102 */ |
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103 default boolean isVarArgs() { |
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104 return (VARARGS & getModifiers()) == VARARGS; |
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105 } |
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106 |
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107 /** |
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108 * Checks that the method is a |
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109 * <a href="http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.6">bridge</a> |
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110 * method. |
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111 * |
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112 * @return whether the method is a bridge method |
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113 */ |
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114 default boolean isBridge() { |
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115 return (BRIDGE & getModifiers()) == BRIDGE; |
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116 } |
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117 |
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118 /** |
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119 * Returns {@code true} if this method is a default method; returns {@code false} otherwise. |
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120 * |
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121 * A default method is a public non-abstract instance method, that is, a non-static method with |
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122 * a body, declared in an interface type. |
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123 * |
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124 * @return true if and only if this method is a default method as defined by the Java Language |
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125 * Specification. |
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126 */ |
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127 boolean isDefault(); |
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128 |
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129 /** |
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130 * Checks whether this method is a class initializer. |
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131 * |
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132 * @return {@code true} if the method is a class initializer |
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133 */ |
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134 boolean isClassInitializer(); |
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135 |
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136 /** |
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137 * Checks whether this method is a constructor. |
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138 * |
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139 * @return {@code true} if the method is a constructor |
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140 */ |
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141 boolean isConstructor(); |
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142 |
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143 /** |
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144 * Checks whether this method can be statically bound (usually, that means it is final or |
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145 * private or static, but not abstract, or the declaring class is final). |
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146 * |
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147 * @return {@code true} if this method can be statically bound |
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148 */ |
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149 boolean canBeStaticallyBound(); |
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150 |
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151 /** |
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152 * Returns the list of exception handlers for this method. |
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153 */ |
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154 ExceptionHandler[] getExceptionHandlers(); |
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155 |
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156 /** |
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157 * Returns a stack trace element for this method and a given bytecode index. |
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158 */ |
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159 StackTraceElement asStackTraceElement(int bci); |
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160 |
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161 /** |
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162 * Returns an object that provides access to the profiling information recorded for this method. |
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163 */ |
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164 default ProfilingInfo getProfilingInfo() { |
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165 return getProfilingInfo(true, true); |
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166 } |
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167 |
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168 /** |
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169 * Returns an object that provides access to the profiling information recorded for this method. |
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170 * |
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171 * @param includeNormal if true, |
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172 * {@linkplain ProfilingInfo#getDeoptimizationCount(DeoptimizationReason) |
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173 * deoptimization counts} will include deoptimization that happened during execution |
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174 * of standard non-osr methods. |
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175 * @param includeOSR if true, |
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176 * {@linkplain ProfilingInfo#getDeoptimizationCount(DeoptimizationReason) |
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177 * deoptimization counts} will include deoptimization that happened during execution |
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178 * of on-stack-replacement methods. |
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179 */ |
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180 ProfilingInfo getProfilingInfo(boolean includeNormal, boolean includeOSR); |
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181 |
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182 /** |
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183 * Invalidates the profiling information and restarts profiling upon the next invocation. |
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184 */ |
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185 void reprofile(); |
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186 |
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187 /** |
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188 * Returns the constant pool of this method. |
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189 */ |
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190 ConstantPool getConstantPool(); |
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191 |
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192 /** |
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193 * Returns an array of arrays that represent the annotations on the formal parameters, in |
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194 * declaration order, of this method. |
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195 * |
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196 * @see Method#getParameterAnnotations() |
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197 */ |
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198 Annotation[][] getParameterAnnotations(); |
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199 |
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200 /** |
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201 * Returns an array of {@link Type} objects that represent the formal parameter types, in |
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202 * declaration order, of this method. |
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203 * |
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204 * @see Method#getGenericParameterTypes() |
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205 */ |
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206 Type[] getGenericParameterTypes(); |
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207 |
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208 /** |
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209 * Returns {@code true} if this method is not excluded from inlining and has associated Java |
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210 * bytecodes (@see {@link ResolvedJavaMethod#hasBytecodes()}). |
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211 */ |
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212 boolean canBeInlined(); |
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213 |
14520 | 214 /** |
215 * Returns {@code true} if the inlining of this method should be forced. | |
216 */ | |
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217 boolean shouldBeInlined(); |
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218 |
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219 /** |
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220 * Returns the LineNumberTable of this method or null if this method does not have a line |
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221 * numbers table. |
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222 */ |
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223 LineNumberTable getLineNumberTable(); |
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224 |
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225 /** |
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226 * Returns the local variable table of this method or null if this method does not have a local |
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227 * variable table. |
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228 */ |
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229 LocalVariableTable getLocalVariableTable(); |
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230 |
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231 /** |
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232 * Invokes the underlying method represented by this object, on the specified object with the |
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233 * specified parameters. This method is similar to a reflective method invocation by |
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234 * {@link Method#invoke}. |
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235 * |
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236 * @param receiver The receiver for the invocation, or {@code null} if it is a static method. |
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237 * @param arguments The arguments for the invocation. |
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238 * @return The value returned by the method invocation, or {@code null} if the return type is |
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239 * {@code void}. |
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240 */ |
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241 JavaConstant invoke(JavaConstant receiver, JavaConstant[] arguments); |
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242 |
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243 /** |
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244 * Gets the encoding of (that is, a constant representing the value of) this method. |
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245 * |
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246 * @return a constant representing a reference to this method |
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247 */ |
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248 Constant getEncoding(); |
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249 |
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250 /** |
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251 * Checks if this method is present in the virtual table for subtypes of the specified |
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252 * {@linkplain ResolvedJavaType type}. |
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253 * |
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254 * @return true is this method is present in the virtual table for subtypes of this type. |
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255 */ |
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256 boolean isInVirtualMethodTable(ResolvedJavaType resolved); |
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257 |
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258 /** |
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259 * Gets the annotation of a particular type for a formal parameter of this method. |
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260 * |
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261 * @param annotationClass the Class object corresponding to the annotation type |
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262 * @param parameterIndex the index of a formal parameter of {@code method} |
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263 * @return the annotation of type {@code annotationClass} for the formal parameter present, else |
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264 * null |
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265 * @throws IndexOutOfBoundsException if {@code parameterIndex} does not denote a formal |
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266 * parameter |
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267 */ |
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268 default <T extends Annotation> T getParameterAnnotation(Class<T> annotationClass, int parameterIndex) { |
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269 if (parameterIndex >= 0) { |
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270 Annotation[][] parameterAnnotations = getParameterAnnotations(); |
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271 for (Annotation a : parameterAnnotations[parameterIndex]) { |
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272 if (a.annotationType() == annotationClass) { |
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273 return annotationClass.cast(a); |
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274 } |
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275 } |
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276 } |
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277 return null; |
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278 } |
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279 |
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280 default JavaType[] toParameterTypes() { |
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281 JavaType receiver = isStatic() || isConstructor() ? null : getDeclaringClass(); |
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282 return getSignature().toParameterTypes(receiver); |
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283 } |
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284 |
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285 /** |
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286 * Gets the annotations of a particular type for the formal parameters of this method. |
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287 * |
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288 * @param annotationClass the Class object corresponding to the annotation type |
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289 * @return the annotation of type {@code annotationClass} (if any) for each formal parameter |
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290 * present |
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291 */ |
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292 @SuppressWarnings("unchecked") |
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293 default <T extends Annotation> T[] getParameterAnnotations(Class<T> annotationClass) { |
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294 Annotation[][] parameterAnnotations = getParameterAnnotations(); |
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295 T[] result = (T[]) Array.newInstance(annotationClass, parameterAnnotations.length); |
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296 for (int i = 0; i < parameterAnnotations.length; i++) { |
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297 for (Annotation a : parameterAnnotations[i]) { |
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298 if (a.annotationType() == annotationClass) { |
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299 result[i] = annotationClass.cast(a); |
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300 } |
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301 } |
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302 } |
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303 return result; |
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304 } |
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305 |
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306 /** |
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307 * Checks whether the method has bytecodes associated with it. Methods without bytecodes are |
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308 * either abstract or native methods. |
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309 * |
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310 * @return whether the definition of this method is Java bytecodes |
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311 */ |
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312 default boolean hasBytecodes() { |
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313 return isConcrete() && !isNative(); |
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314 } |
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315 |
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316 /** |
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317 * Checks whether the method has a receiver parameter - i.e., whether it is not static. |
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318 * |
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319 * @return whether the method has a receiver parameter |
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320 */ |
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321 default boolean hasReceiver() { |
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322 return !isStatic(); |
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323 } |
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324 |
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325 /** |
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326 * Determines if this method is {@link java.lang.Object#Object()}. |
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327 */ |
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328 default boolean isJavaLangObjectInit() { |
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329 return getDeclaringClass().isJavaLangObject() && getName().equals("<init>"); |
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330 } |
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Move HotSpotResolvedJavaMethod.getSpeculationLog to ResolvedJavaMethod
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331 |
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332 SpeculationLog getSpeculationLog(); |
22012
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333 |
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334 /** |
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335 * Determines if the method identified by its holder and name is a |
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336 * <a href="https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-2.html#jvms-2.9">signature |
22012
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337 * polymorphic</a> method. |
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338 */ |
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339 static boolean isSignaturePolymorphic(JavaType holder, String name, MetaAccessProvider metaAccess) { |
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340 if (!holder.getName().equals("Ljava/lang/invoke/MethodHandle;")) { |
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341 return false; |
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342 } |
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343 ResolvedJavaType methodHandleType = metaAccess.lookupJavaType(MethodHandle.class); |
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344 Signature signature = metaAccess.parseMethodDescriptor("([Ljava/lang/Object;)Ljava/lang/Object;"); |
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345 ResolvedJavaMethod method = methodHandleType.findMethod(name, signature); |
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346 if (method == null) { |
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347 return false; |
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348 } |
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349 return method.isNative() && method.isVarArgs(); |
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350 } |
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Added Java files from Maxine project.
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351 } |