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annotate jvmci/jdk.vm.ci.meta/src/jdk/vm/ci/meta/ResolvedJavaMethod.java @ 23749:d6bd0b9cd0b6

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remove uses of setAccessible (JDK-8165434)
author Doug Simon <doug.simon@oracle.com>
date Wed, 07 Sep 2016 15:17:13 +0200
parents 6542cd8da2da
children 0cb263db490f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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.reflect.AnnotatedElement;
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27 import java.lang.reflect.Array;
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28 import java.lang.reflect.Method;
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29 import java.lang.reflect.Type;
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30
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31 /**
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32 * Represents a resolved Java method. Methods, like fields and types, are resolved through
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33 * {@link ConstantPool constant pools}.
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34 */
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35 public interface ResolvedJavaMethod extends JavaMethod, InvokeTarget, ModifiersProvider, AnnotatedElement {
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36
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37 /**
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38 * Returns the bytecode of this method, if the method has code. The returned byte array does not
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39 * contain breakpoints or non-Java bytecodes. This may return null if the
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40 * {@link #getDeclaringClass() holder} is not {@link ResolvedJavaType#isLinked() linked}.
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41 *
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42 * The contained constant pool indices may not be the ones found in the original class file but
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43 * they can be used with the JVMCI API (e.g. methods in {@link ConstantPool}).
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44 *
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45 * @return the bytecode of the method, or {@code null} if {@code getCodeSize() == 0} or if the
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46 * code is not ready.
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47 */
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48 byte[] getCode();
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49
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50 /**
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51 * Returns the size of the bytecode of this method, if the method has code. This is equivalent
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52 * to {@link #getCode()}. {@code length} if the method has code.
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53 *
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54 * @return the size of the bytecode in bytes, or 0 if no bytecode is available
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55 */
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56 int getCodeSize();
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57
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58 /**
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59 * Returns the {@link ResolvedJavaType} object representing the class or interface that declares
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60 * this method.
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61 */
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62 ResolvedJavaType getDeclaringClass();
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63
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64 /**
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65 * Returns the maximum number of locals used in this method's bytecodes.
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66 */
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67 int getMaxLocals();
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68
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69 /**
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70 * Returns the maximum number of stack slots used in this method's bytecodes.
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71 */
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72 int getMaxStackSize();
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73
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74 default boolean isFinal() {
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75 return ModifiersProvider.super.isFinalFlagSet();
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76 }
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77
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78 /**
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79 * Determines if this method is a synthetic method as defined by the Java Language
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80 * Specification.
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81 */
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82 boolean isSynthetic();
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83
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84 /**
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85 * Checks that the method is a
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86 * <a href="http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.6">varargs</a>
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87 * method.
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88 *
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89 * @return whether the method is a varargs method
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90 */
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91 boolean isVarArgs();
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92
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93 /**
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94 * Checks that the method is a
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95 * <a href="http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.6">bridge</a>
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96 * method.
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97 *
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98 * @return whether the method is a bridge method
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99 */
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100 boolean isBridge();
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101
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102 /**
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103 * Returns {@code true} if this method is a default method; returns {@code false} otherwise.
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104 *
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105 * A default method is a public non-abstract instance method, that is, a non-static method with
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106 * a body, declared in an interface type.
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107 *
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108 * @return true if and only if this method is a default method as defined by the Java Language
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109 * Specification.
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110 */
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111 boolean isDefault();
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112
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113 /**
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114 * Checks whether this method is a class initializer.
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115 *
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116 * @return {@code true} if the method is a class initializer
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117 */
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118 boolean isClassInitializer();
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119
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120 /**
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121 * Checks whether this method is a constructor.
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122 *
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123 * @return {@code true} if the method is a constructor
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124 */
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125 boolean isConstructor();
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126
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127 /**
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128 * Checks whether this method can be statically bound (usually, that means it is final or
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129 * private or static, but not abstract, or the declaring class is final).
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130 *
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131 * @return {@code true} if this method can be statically bound
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132 */
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133 boolean canBeStaticallyBound();
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134
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135 /**
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136 * Returns the list of exception handlers for this method.
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137 */
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138 ExceptionHandler[] getExceptionHandlers();
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139
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140 /**
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141 * Returns a stack trace element for this method and a given bytecode index.
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142 */
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143 StackTraceElement asStackTraceElement(int bci);
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144
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145 /**
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146 * Returns an object that provides access to the profiling information recorded for this method.
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147 */
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148 default ProfilingInfo getProfilingInfo() {
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149 return getProfilingInfo(true, true);
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150 }
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151
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152 /**
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153 * Returns an object that provides access to the profiling information recorded for this method.
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154 *
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155 * @param includeNormal if true,
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156 * {@linkplain ProfilingInfo#getDeoptimizationCount(DeoptimizationReason)
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157 * deoptimization counts} will include deoptimization that happened during execution
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158 * of standard non-osr methods.
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159 * @param includeOSR if true,
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160 * {@linkplain ProfilingInfo#getDeoptimizationCount(DeoptimizationReason)
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161 * deoptimization counts} will include deoptimization that happened during execution
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162 * of on-stack-replacement methods.
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163 */
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164 ProfilingInfo getProfilingInfo(boolean includeNormal, boolean includeOSR);
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165
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166 /**
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Christian Haeubl <haeubl@ssw.jku.at>
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167 * Invalidates the profiling information and restarts profiling upon the next invocation.
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168 */
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169 void reprofile();
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170
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171 /**
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172 * Returns the constant pool of this method.
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173 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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174 ConstantPool getConstantPool();
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175
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176 /**
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177 * Returns an array of arrays that represent the annotations on the formal parameters, in
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178 * declaration order, of this method.
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179 *
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180 * @see Method#getParameterAnnotations()
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181 */
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182 Annotation[][] getParameterAnnotations();
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183
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184 /**
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185 * Returns an array of {@link Type} objects that represent the formal parameter types, in
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186 * declaration order, of this method.
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187 *
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188 * @see Method#getGenericParameterTypes()
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189 */
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190 Type[] getGenericParameterTypes();
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191
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192 /**
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193 * Returns {@code true} if this method is not excluded from inlining and has associated Java
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194 * bytecodes (@see {@link ResolvedJavaMethod#hasBytecodes()}).
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195 */
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196 boolean canBeInlined();
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197
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198 /**
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199 * Returns {@code true} if the inlining of this method should be forced.
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200 */
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201 boolean shouldBeInlined();
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202
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203 /**
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204 * Returns the LineNumberTable of this method or null if this method does not have a line
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205 * numbers table.
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206 */
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207 LineNumberTable getLineNumberTable();
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208
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209 /**
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210 * Returns the local variable table of this method or null if this method does not have a local
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211 * variable table.
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212 */
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213 LocalVariableTable getLocalVariableTable();
9100
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214
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215 /**
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216 * Gets the encoding of (that is, a constant representing the value of) this method.
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217 *
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218 * @return a constant representing a reference to this method
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219 */
18362
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Roland Schatz <roland.schatz@oracle.com>
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220 Constant getEncoding();
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221
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222 /**
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223 * Checks if this method is present in the virtual table for subtypes of the specified
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224 * {@linkplain ResolvedJavaType type}.
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225 *
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226 * @return true is this method is present in the virtual table for subtypes of this type.
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227 */
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228 boolean isInVirtualMethodTable(ResolvedJavaType resolved);
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229
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230 /**
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231 * Gets the annotation of a particular type for a formal parameter of this method.
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232 *
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233 * @param annotationClass the Class object corresponding to the annotation type
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234 * @param parameterIndex the index of a formal parameter of {@code method}
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235 * @return the annotation of type {@code annotationClass} for the formal parameter present, else
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236 * null
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237 * @throws IndexOutOfBoundsException if {@code parameterIndex} does not denote a formal
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238 * parameter
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239 */
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240 default <T extends Annotation> T getParameterAnnotation(Class<T> annotationClass, int parameterIndex) {
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241 if (parameterIndex >= 0) {
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242 Annotation[][] parameterAnnotations = getParameterAnnotations();
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243 for (Annotation a : parameterAnnotations[parameterIndex]) {
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244 if (a.annotationType() == annotationClass) {
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245 return annotationClass.cast(a);
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246 }
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247 }
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248 }
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249 return null;
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250 }
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251
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252 default JavaType[] toParameterTypes() {
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253 JavaType receiver = isStatic() || isConstructor() ? null : getDeclaringClass();
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254 return getSignature().toParameterTypes(receiver);
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255 }
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256
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257 /**
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258 * Gets the annotations of a particular type for the formal parameters of this method.
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259 *
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260 * @param annotationClass the Class object corresponding to the annotation type
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261 * @return the annotation of type {@code annotationClass} (if any) for each formal parameter
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262 * present
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263 */
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264 @SuppressWarnings("unchecked")
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265 default <T extends Annotation> T[] getParameterAnnotations(Class<T> annotationClass) {
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266 Annotation[][] parameterAnnotations = getParameterAnnotations();
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267 T[] result = (T[]) Array.newInstance(annotationClass, parameterAnnotations.length);
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268 for (int i = 0; i < parameterAnnotations.length; i++) {
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269 for (Annotation a : parameterAnnotations[i]) {
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270 if (a.annotationType() == annotationClass) {
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271 result[i] = annotationClass.cast(a);
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272 }
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273 }
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274 }
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275 return result;
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276 }
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277
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278 /**
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279 * Checks whether the method has bytecodes associated with it. Methods without bytecodes are
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280 * either abstract or native methods.
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281 *
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282 * @return whether the definition of this method is Java bytecodes
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283 */
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284 default boolean hasBytecodes() {
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285 return isConcrete() && !isNative();
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286 }
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287
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288 /**
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289 * Checks whether the method has a receiver parameter - i.e., whether it is not static.
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290 *
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291 * @return whether the method has a receiver parameter
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292 */
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293 default boolean hasReceiver() {
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294 return !isStatic();
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295 }
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296
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297 /**
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298 * Determines if this method is {@link java.lang.Object#Object()}.
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299 */
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300 default boolean isJavaLangObjectInit() {
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301 return getDeclaringClass().isJavaLangObject() && getName().equals("<init>");
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302 }
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303
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304 SpeculationLog getSpeculationLog();
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305 }