Mercurial > hg > graal-compiler
annotate graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/ResolvedJavaMethod.java @ 21556:48c1ebd24120
renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 27 May 2015 00:36:16 +0200 |
parents | graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/ResolvedJavaMethod.java@9f6733155647 |
children | 36cf15e3219e |
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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 com.oracle.jvmci.meta; |
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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 |
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28 /** |
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29 * Represents a resolved Java method. Methods, like fields and types, are resolved through |
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30 * {@link ConstantPool constant pools}. |
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31 */ |
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32 public interface ResolvedJavaMethod extends JavaMethod, InvokeTarget, ModifiersProvider { |
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33 |
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34 /** |
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35 * Returns the bytecode of this method, if the method has code. The returned byte array does not |
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36 * contain breakpoints or non-Java bytecodes. This may return null if the |
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37 * {@link #getDeclaringClass() holder} is not {@link ResolvedJavaType#isLinked() linked}. |
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38 * |
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39 * The contained constant pool indices may not be the ones found in the original class file but |
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40 * they can be used with the Graal API (e.g. methods in {@link ConstantPool}). |
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41 * |
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42 * @return the bytecode of the method, or {@code null} if {@code getCodeSize() == 0} or if the |
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43 * code is not ready. |
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44 */ |
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45 byte[] getCode(); |
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46 |
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47 /** |
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48 * Returns the size of the bytecode of this method, if the method has code. This is equivalent |
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49 * to {@link #getCode()}. {@code length} if the method has code. |
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50 * |
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51 * @return the size of the bytecode in bytes, or 0 if no bytecode is available |
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52 */ |
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53 int getCodeSize(); |
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54 |
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55 /** |
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56 * Returns the {@link ResolvedJavaType} object representing the class or interface that declares |
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57 * this method. |
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58 */ |
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59 ResolvedJavaType getDeclaringClass(); |
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60 |
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61 /** |
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62 * Returns the maximum number of locals used in this method's bytecodes. |
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63 */ |
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64 int getMaxLocals(); |
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65 |
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66 /** |
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67 * Returns the maximum number of stack slots used in this method's bytecodes. |
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68 */ |
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69 int getMaxStackSize(); |
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70 |
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71 /** |
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72 * {@inheritDoc} |
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73 * <p> |
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74 * Only the {@linkplain Modifier#methodModifiers() method flags} specified in the JVM |
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75 * specification will be included in the returned mask. |
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76 */ |
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77 int getModifiers(); |
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78 |
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79 /** |
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80 * Determines if this method is a synthetic method as defined by the Java Language |
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81 * Specification. |
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82 */ |
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83 boolean isSynthetic(); |
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84 |
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85 /** |
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86 * Returns {@code true} if this method is a default method; returns {@code false} otherwise. |
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87 * |
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88 * A default method is a public non-abstract instance method, that is, a non-static method with |
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89 * a body, declared in an interface type. |
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90 * |
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91 * @return true if and only if this method is a default method as defined by the Java Language |
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92 * Specification. |
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93 */ |
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94 boolean isDefault(); |
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95 |
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96 /** |
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97 * Checks whether this method is a class initializer. |
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98 * |
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99 * @return {@code true} if the method is a class initializer |
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100 */ |
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101 boolean isClassInitializer(); |
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102 |
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103 /** |
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104 * Checks whether this method is a constructor. |
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105 * |
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106 * @return {@code true} if the method is a constructor |
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107 */ |
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108 boolean isConstructor(); |
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109 |
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110 /** |
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111 * Checks whether this method can be statically bound (usually, that means it is final or |
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112 * private or static, but not abstract, or the declaring class is final). |
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113 * |
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114 * @return {@code true} if this method can be statically bound |
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115 */ |
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116 boolean canBeStaticallyBound(); |
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117 |
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118 /** |
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119 * Returns the list of exception handlers for this method. |
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120 */ |
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121 ExceptionHandler[] getExceptionHandlers(); |
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122 |
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123 /** |
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124 * Returns a stack trace element for this method and a given bytecode index. |
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125 */ |
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126 StackTraceElement asStackTraceElement(int bci); |
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127 |
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128 /** |
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129 * Returns an object that provides access to the profiling information recorded for this method. |
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130 */ |
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131 ProfilingInfo getProfilingInfo(); |
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132 |
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133 /** |
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134 * Invalidates the profiling information and restarts profiling upon the next invocation. |
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135 */ |
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136 void reprofile(); |
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137 |
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138 /** |
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139 * Returns the constant pool of this method. |
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140 */ |
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141 ConstantPool getConstantPool(); |
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142 |
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143 /** |
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144 * Returns all annotations of this method. If no annotations are present, an array of length 0 |
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145 * is returned. |
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146 */ |
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147 Annotation[] getAnnotations(); |
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148 |
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149 /** |
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150 * Returns the annotation for the specified type of this method, if such an annotation is |
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151 * present. |
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152 * |
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153 * @param annotationClass the Class object corresponding to the annotation type |
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154 * @return this element's annotation for the specified annotation type if present on this |
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155 * method, else {@code null} |
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156 */ |
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157 <T extends Annotation> T getAnnotation(Class<T> annotationClass); |
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158 |
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159 /** |
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160 * Returns an array of arrays that represent the annotations on the formal parameters, in |
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161 * declaration order, of this method. |
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162 * |
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163 * @see Method#getParameterAnnotations() |
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164 */ |
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165 Annotation[][] getParameterAnnotations(); |
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166 |
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167 /** |
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168 * Returns an array of {@link Type} objects that represent the formal parameter types, in |
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169 * declaration order, of this method. |
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170 * |
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171 * @see Method#getGenericParameterTypes() |
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172 */ |
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173 Type[] getGenericParameterTypes(); |
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174 |
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175 /** |
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176 * Returns {@code true} if this method is not excluded from inlining and has associated Java |
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177 * bytecodes (@see {@link ResolvedJavaMethod#hasBytecodes()}). |
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178 */ |
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179 boolean canBeInlined(); |
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180 |
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182 * Returns {@code true} if the inlining of this method should be forced. | |
183 */ | |
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184 boolean shouldBeInlined(); |
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185 |
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186 /** |
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187 * Returns the LineNumberTable of this method or null if this method does not have a line |
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188 * numbers table. |
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189 */ |
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190 LineNumberTable getLineNumberTable(); |
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191 |
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192 /** |
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193 * Returns the local variable table of this method or null if this method does not have a local |
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194 * variable table. |
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195 */ |
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196 LocalVariableTable getLocalVariableTable(); |
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197 |
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198 /** |
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199 * Invokes the underlying method represented by this object, on the specified object with the |
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200 * specified parameters. This method is similar to a reflective method invocation by |
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201 * {@link Method#invoke}. |
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202 * |
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203 * @param receiver The receiver for the invocation, or {@code null} if it is a static method. |
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204 * @param arguments The arguments for the invocation. |
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205 * @return The value returned by the method invocation, or {@code null} if the return type is |
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206 * {@code void}. |
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207 */ |
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208 JavaConstant invoke(JavaConstant receiver, JavaConstant[] arguments); |
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209 |
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210 /** |
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211 * Gets the encoding of (that is, a constant representing the value of) this method. |
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212 * |
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213 * @return a constant representing a reference to this method |
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214 */ |
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215 Constant getEncoding(); |
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216 |
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217 /** |
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218 * Checks if this method is present in the virtual table for subtypes of the specified |
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219 * {@linkplain ResolvedJavaType type}. |
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220 * |
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221 * @return true is this method is present in the virtual table for subtypes of this type. |
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222 */ |
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223 boolean isInVirtualMethodTable(ResolvedJavaType resolved); |
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224 |
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225 /** |
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226 * Gets the annotation of a particular type for a formal parameter of this method. |
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227 * |
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228 * @param annotationClass the Class object corresponding to the annotation type |
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229 * @param parameterIndex the index of a formal parameter of {@code method} |
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230 * @return the annotation of type {@code annotationClass} for the formal parameter present, else |
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231 * null |
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232 * @throws IndexOutOfBoundsException if {@code parameterIndex} does not denote a formal |
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233 * parameter |
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234 */ |
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235 default <T extends Annotation> T getParameterAnnotation(Class<T> annotationClass, int parameterIndex) { |
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236 if (parameterIndex >= 0) { |
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237 Annotation[][] parameterAnnotations = getParameterAnnotations(); |
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238 for (Annotation a : parameterAnnotations[parameterIndex]) { |
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239 if (a.annotationType() == annotationClass) { |
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240 return annotationClass.cast(a); |
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241 } |
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242 } |
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243 } |
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244 return null; |
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245 } |
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246 |
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247 default JavaType[] toParameterTypes() { |
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248 JavaType receiver = isStatic() || isConstructor() ? null : getDeclaringClass(); |
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249 return getSignature().toParameterTypes(receiver); |
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250 } |
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251 |
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252 /** |
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253 * Gets the annotations of a particular type for the formal parameters of this method. |
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254 * |
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255 * @param annotationClass the Class object corresponding to the annotation type |
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256 * @return the annotation of type {@code annotationClass} (if any) for each formal parameter |
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257 * present |
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258 */ |
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259 @SuppressWarnings("unchecked") |
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260 default <T extends Annotation> T[] getParameterAnnotations(Class<T> annotationClass) { |
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261 Annotation[][] parameterAnnotations = getParameterAnnotations(); |
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262 T[] result = (T[]) Array.newInstance(annotationClass, parameterAnnotations.length); |
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263 for (int i = 0; i < parameterAnnotations.length; i++) { |
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264 for (Annotation a : parameterAnnotations[i]) { |
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265 if (a.annotationType() == annotationClass) { |
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266 result[i] = annotationClass.cast(a); |
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267 } |
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268 } |
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269 } |
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270 return result; |
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271 } |
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272 |
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273 /** |
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274 * Checks whether the method has bytecodes associated with it. Methods without bytecodes are |
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275 * either abstract or native methods. |
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276 * |
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277 * @return whether the definition of this method is Java bytecodes |
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278 */ |
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279 default boolean hasBytecodes() { |
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280 return isConcrete() && !isNative(); |
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281 } |
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282 |
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283 /** |
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284 * Checks whether the method has a receiver parameter - i.e., whether it is not static. |
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285 * |
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286 * @return whether the method has a receiver parameter |
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287 */ |
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288 default boolean hasReceiver() { |
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289 return !isStatic(); |
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290 } |
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291 |
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292 /** |
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293 * Determines if this method is {@link java.lang.Object#Object()}. |
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294 */ |
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295 default boolean isJavaLangObjectInit() { |
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296 return getDeclaringClass().isJavaLangObject() && getName().equals("<init>"); |
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297 } |
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298 } |