Mercurial > hg > graal-jvmci-8

annotate jvmci/jdk.vm.ci.meta/src/jdk/vm/ci/meta/ModifiersProvider.java @ 22672:1bbd4a7c274b

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Rename jdk.internal.jvmci to jdk.vm.ci
author Tom Rodriguez <tom.rodriguez@oracle.com>
date Thu, 08 Oct 2015 17:28:41 -0700
parents jvmci/jdk.internal.jvmci.meta/src/jdk/internal/jvmci/meta/ModifiersProvider.java@ec96f33a101d
children d6bd0b9cd0b6
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1 /*
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2 * Copyright (c) 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 static java.lang.reflect.Modifier.ABSTRACT;
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26 import static java.lang.reflect.Modifier.FINAL;
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27 import static java.lang.reflect.Modifier.INTERFACE;
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28 import static java.lang.reflect.Modifier.NATIVE;
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29 import static java.lang.reflect.Modifier.PRIVATE;
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30 import static java.lang.reflect.Modifier.PROTECTED;
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31 import static java.lang.reflect.Modifier.PUBLIC;
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32 import static java.lang.reflect.Modifier.STATIC;
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33 import static java.lang.reflect.Modifier.STRICT;
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34 import static java.lang.reflect.Modifier.SYNCHRONIZED;
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35 import static java.lang.reflect.Modifier.TRANSIENT;
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36 import static java.lang.reflect.Modifier.VOLATILE;
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37
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38 import java.lang.reflect.Modifier;
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39
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40 /**
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41 * A Java element (i.e., a class, interface, field or method) that is described by a set of Java
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42 * language {@linkplain #getModifiers() modifiers}.
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43 */
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44 public interface ModifiersProvider {
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45 int BRIDGE = MetaUtil.getNonPublicModifierStaticField("BRIDGE");
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46 int VARARGS = MetaUtil.getNonPublicModifierStaticField("VARARGS");
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47 int SYNTHETIC = MetaUtil.getNonPublicModifierStaticField("SYNTHETIC");
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48 int ANNOTATION = MetaUtil.getNonPublicModifierStaticField("ANNOTATION");
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49 int ENUM = MetaUtil.getNonPublicModifierStaticField("ENUM");
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50 int MANDATED = MetaUtil.getNonPublicModifierStaticField("MANDATED");
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51
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52 /**
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53 * Returns the Java Virtual Machine modifiers for this element. Note that this can differ from
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54 * standard Java Reflection modifiers. For example at the JVM level, classes (
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55 * {@link ResolvedJavaType}) can not be private or protected.
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56 */
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57 int getModifiers();
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58
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59 /**
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60 * @see Modifier#isInterface(int)
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61 */
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62 default boolean isInterface() {
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63 return Modifier.isInterface(getModifiers());
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64 }
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65
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66 /**
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67 * @see Modifier#isSynchronized(int)
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68 */
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69 default boolean isSynchronized() {
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70 return Modifier.isSynchronized(getModifiers());
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71 }
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72
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73 /**
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74 * @see Modifier#isStatic(int)
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75 */
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76 default boolean isStatic() {
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77 return Modifier.isStatic(getModifiers());
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78 }
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79
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80 /**
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81 * The setting of the final modifier bit for types is somewhat confusing, so don't export
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82 * isFinal by default. Subclasses like {@link ResolvedJavaField} and {@link ResolvedJavaMethod}
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83 * can export it as isFinal, but {@link ResolvedJavaType} can provide a more sensible equivalent
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84 * like {@link ResolvedJavaType#isLeaf}.
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85 *
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86 * @see Modifier#isFinal(int)
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87 */
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88 default boolean isFinalFlagSet() {
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89 return Modifier.isFinal(getModifiers());
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90 }
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91
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92 /**
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93 * @see Modifier#isPublic(int)
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94 */
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95 default boolean isPublic() {
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96 return Modifier.isPublic(getModifiers());
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97 }
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98
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99 /**
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100 * Determines if this element is neither {@linkplain #isPublic() public},
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101 * {@linkplain #isProtected() protected} nor {@linkplain #isPrivate() private}.
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102 */
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103 default boolean isPackagePrivate() {
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104 return ((PUBLIC | PROTECTED | PRIVATE) & getModifiers()) == 0;
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105 }
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106
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107 /**
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108 * @see Modifier#isPrivate(int)
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109 */
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110 default boolean isPrivate() {
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111 return Modifier.isPrivate(getModifiers());
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112 }
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113
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114 /**
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115 * @see Modifier#isProtected(int)
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116 */
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117 default boolean isProtected() {
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118 return Modifier.isProtected(getModifiers());
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119 }
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120
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121 /**
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122 * @see Modifier#isTransient(int)
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123 */
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124 default boolean isTransient() {
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125 return Modifier.isTransient(getModifiers());
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126 }
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127
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128 /**
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129 * @see Modifier#isStrict(int)
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130 */
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131 default boolean isStrict() {
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132 return Modifier.isStrict(getModifiers());
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133 }
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134
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135 /**
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136 * @see Modifier#isVolatile(int)
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137 */
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138 default boolean isVolatile() {
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139 return Modifier.isVolatile(getModifiers());
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140 }
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141
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142 /**
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143 * @see Modifier#isNative(int)
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144 */
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145 default boolean isNative() {
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146 return Modifier.isNative(getModifiers());
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147 }
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148
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149 /**
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150 * @see Modifier#isAbstract(int)
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151 */
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152 default boolean isAbstract() {
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153 return Modifier.isAbstract(getModifiers());
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154 }
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155
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156 /**
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157 * Checks that the method is concrete and not abstract.
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158 *
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159 * @return whether the method is a concrete method
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160 */
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161 default boolean isConcrete() {
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162 return !isAbstract();
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163 }
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164
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165 static int jvmClassModifiers() {
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166 // no SUPER
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167 return PUBLIC | FINAL | INTERFACE | ABSTRACT | ANNOTATION | ENUM | SYNTHETIC;
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168 }
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169
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170 static int jvmMethodModifiers() {
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171 return PUBLIC | PRIVATE | PROTECTED | STATIC | FINAL | SYNCHRONIZED | BRIDGE | VARARGS | NATIVE | ABSTRACT | STRICT | SYNTHETIC;
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172 }
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173
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174 static int jvmFieldModifiers() {
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175 return PUBLIC | PRIVATE | PROTECTED | STATIC | FINAL | VOLATILE | TRANSIENT | ENUM | SYNTHETIC;
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176 }
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177 }