1.1 --- a/emul/src/main/java/java/lang/reflect/Modifier.java Wed Jan 23 20:16:48 2013 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,437 +0,0 @@
1.4 -/*
1.5 - * Copyright (c) 1996, 2008, Oracle and/or its affiliates. All rights reserved.
1.6 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 - *
1.8 - * This code is free software; you can redistribute it and/or modify it
1.9 - * under the terms of the GNU General Public License version 2 only, as
1.10 - * published by the Free Software Foundation. Oracle designates this
1.11 - * particular file as subject to the "Classpath" exception as provided
1.12 - * by Oracle in the LICENSE file that accompanied this code.
1.13 - *
1.14 - * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 - * version 2 for more details (a copy is included in the LICENSE file that
1.18 - * accompanied this code).
1.19 - *
1.20 - * You should have received a copy of the GNU General Public License version
1.21 - * 2 along with this work; if not, write to the Free Software Foundation,
1.22 - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 - *
1.24 - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 - * or visit www.oracle.com if you need additional information or have any
1.26 - * questions.
1.27 - */
1.28 -
1.29 -package java.lang.reflect;
1.30 -
1.31 -/**
1.32 - * The Modifier class provides {@code static} methods and
1.33 - * constants to decode class and member access modifiers. The sets of
1.34 - * modifiers are represented as integers with distinct bit positions
1.35 - * representing different modifiers. The values for the constants
1.36 - * representing the modifiers are taken from the tables in sections 4.1, 4.4, 4.5, and 4.7 of
1.37 - * <cite>The Java™ Virtual Machine Specification</cite>.
1.38 - *
1.39 - * @see Class#getModifiers()
1.40 - * @see Member#getModifiers()
1.41 - *
1.42 - * @author Nakul Saraiya
1.43 - * @author Kenneth Russell
1.44 - */
1.45 -public
1.46 -class Modifier {
1.47 -
1.48 - /**
1.49 - * Return {@code true} if the integer argument includes the
1.50 - * {@code public} modifier, {@code false} otherwise.
1.51 - *
1.52 - * @param mod a set of modifiers
1.53 - * @return {@code true} if {@code mod} includes the
1.54 - * {@code public} modifier; {@code false} otherwise.
1.55 - */
1.56 - public static boolean isPublic(int mod) {
1.57 - return (mod & PUBLIC) != 0;
1.58 - }
1.59 -
1.60 - /**
1.61 - * Return {@code true} if the integer argument includes the
1.62 - * {@code private} modifier, {@code false} otherwise.
1.63 - *
1.64 - * @param mod a set of modifiers
1.65 - * @return {@code true} if {@code mod} includes the
1.66 - * {@code private} modifier; {@code false} otherwise.
1.67 - */
1.68 - public static boolean isPrivate(int mod) {
1.69 - return (mod & PRIVATE) != 0;
1.70 - }
1.71 -
1.72 - /**
1.73 - * Return {@code true} if the integer argument includes the
1.74 - * {@code protected} modifier, {@code false} otherwise.
1.75 - *
1.76 - * @param mod a set of modifiers
1.77 - * @return {@code true} if {@code mod} includes the
1.78 - * {@code protected} modifier; {@code false} otherwise.
1.79 - */
1.80 - public static boolean isProtected(int mod) {
1.81 - return (mod & PROTECTED) != 0;
1.82 - }
1.83 -
1.84 - /**
1.85 - * Return {@code true} if the integer argument includes the
1.86 - * {@code static} modifier, {@code false} otherwise.
1.87 - *
1.88 - * @param mod a set of modifiers
1.89 - * @return {@code true} if {@code mod} includes the
1.90 - * {@code static} modifier; {@code false} otherwise.
1.91 - */
1.92 - public static boolean isStatic(int mod) {
1.93 - return (mod & STATIC) != 0;
1.94 - }
1.95 -
1.96 - /**
1.97 - * Return {@code true} if the integer argument includes the
1.98 - * {@code final} modifier, {@code false} otherwise.
1.99 - *
1.100 - * @param mod a set of modifiers
1.101 - * @return {@code true} if {@code mod} includes the
1.102 - * {@code final} modifier; {@code false} otherwise.
1.103 - */
1.104 - public static boolean isFinal(int mod) {
1.105 - return (mod & FINAL) != 0;
1.106 - }
1.107 -
1.108 - /**
1.109 - * Return {@code true} if the integer argument includes the
1.110 - * {@code synchronized} modifier, {@code false} otherwise.
1.111 - *
1.112 - * @param mod a set of modifiers
1.113 - * @return {@code true} if {@code mod} includes the
1.114 - * {@code synchronized} modifier; {@code false} otherwise.
1.115 - */
1.116 - public static boolean isSynchronized(int mod) {
1.117 - return (mod & SYNCHRONIZED) != 0;
1.118 - }
1.119 -
1.120 - /**
1.121 - * Return {@code true} if the integer argument includes the
1.122 - * {@code volatile} modifier, {@code false} otherwise.
1.123 - *
1.124 - * @param mod a set of modifiers
1.125 - * @return {@code true} if {@code mod} includes the
1.126 - * {@code volatile} modifier; {@code false} otherwise.
1.127 - */
1.128 - public static boolean isVolatile(int mod) {
1.129 - return (mod & VOLATILE) != 0;
1.130 - }
1.131 -
1.132 - /**
1.133 - * Return {@code true} if the integer argument includes the
1.134 - * {@code transient} modifier, {@code false} otherwise.
1.135 - *
1.136 - * @param mod a set of modifiers
1.137 - * @return {@code true} if {@code mod} includes the
1.138 - * {@code transient} modifier; {@code false} otherwise.
1.139 - */
1.140 - public static boolean isTransient(int mod) {
1.141 - return (mod & TRANSIENT) != 0;
1.142 - }
1.143 -
1.144 - /**
1.145 - * Return {@code true} if the integer argument includes the
1.146 - * {@code native} modifier, {@code false} otherwise.
1.147 - *
1.148 - * @param mod a set of modifiers
1.149 - * @return {@code true} if {@code mod} includes the
1.150 - * {@code native} modifier; {@code false} otherwise.
1.151 - */
1.152 - public static boolean isNative(int mod) {
1.153 - return (mod & NATIVE) != 0;
1.154 - }
1.155 -
1.156 - /**
1.157 - * Return {@code true} if the integer argument includes the
1.158 - * {@code interface} modifier, {@code false} otherwise.
1.159 - *
1.160 - * @param mod a set of modifiers
1.161 - * @return {@code true} if {@code mod} includes the
1.162 - * {@code interface} modifier; {@code false} otherwise.
1.163 - */
1.164 - public static boolean isInterface(int mod) {
1.165 - return (mod & INTERFACE) != 0;
1.166 - }
1.167 -
1.168 - /**
1.169 - * Return {@code true} if the integer argument includes the
1.170 - * {@code abstract} modifier, {@code false} otherwise.
1.171 - *
1.172 - * @param mod a set of modifiers
1.173 - * @return {@code true} if {@code mod} includes the
1.174 - * {@code abstract} modifier; {@code false} otherwise.
1.175 - */
1.176 - public static boolean isAbstract(int mod) {
1.177 - return (mod & ABSTRACT) != 0;
1.178 - }
1.179 -
1.180 - /**
1.181 - * Return {@code true} if the integer argument includes the
1.182 - * {@code strictfp} modifier, {@code false} otherwise.
1.183 - *
1.184 - * @param mod a set of modifiers
1.185 - * @return {@code true} if {@code mod} includes the
1.186 - * {@code strictfp} modifier; {@code false} otherwise.
1.187 - */
1.188 - public static boolean isStrict(int mod) {
1.189 - return (mod & STRICT) != 0;
1.190 - }
1.191 -
1.192 - /**
1.193 - * Return a string describing the access modifier flags in
1.194 - * the specified modifier. For example:
1.195 - * <blockquote><pre>
1.196 - * public final synchronized strictfp
1.197 - * </pre></blockquote>
1.198 - * The modifier names are returned in an order consistent with the
1.199 - * suggested modifier orderings given in sections 8.1.1, 8.3.1, 8.4.3, 8.8.3, and 9.1.1 of
1.200 - * <cite>The Java™ Language Specification</cite>.
1.201 - * The full modifier ordering used by this method is:
1.202 - * <blockquote> {@code
1.203 - * public protected private abstract static final transient
1.204 - * volatile synchronized native strictfp
1.205 - * interface } </blockquote>
1.206 - * The {@code interface} modifier discussed in this class is
1.207 - * not a true modifier in the Java language and it appears after
1.208 - * all other modifiers listed by this method. This method may
1.209 - * return a string of modifiers that are not valid modifiers of a
1.210 - * Java entity; in other words, no checking is done on the
1.211 - * possible validity of the combination of modifiers represented
1.212 - * by the input.
1.213 - *
1.214 - * Note that to perform such checking for a known kind of entity,
1.215 - * such as a constructor or method, first AND the argument of
1.216 - * {@code toString} with the appropriate mask from a method like
1.217 - * {@link #constructorModifiers} or {@link #methodModifiers}.
1.218 - *
1.219 - * @param mod a set of modifiers
1.220 - * @return a string representation of the set of modifiers
1.221 - * represented by {@code mod}
1.222 - */
1.223 - public static String toString(int mod) {
1.224 - StringBuffer sb = new StringBuffer();
1.225 - int len;
1.226 -
1.227 - if ((mod & PUBLIC) != 0) sb.append("public ");
1.228 - if ((mod & PROTECTED) != 0) sb.append("protected ");
1.229 - if ((mod & PRIVATE) != 0) sb.append("private ");
1.230 -
1.231 - /* Canonical order */
1.232 - if ((mod & ABSTRACT) != 0) sb.append("abstract ");
1.233 - if ((mod & STATIC) != 0) sb.append("static ");
1.234 - if ((mod & FINAL) != 0) sb.append("final ");
1.235 - if ((mod & TRANSIENT) != 0) sb.append("transient ");
1.236 - if ((mod & VOLATILE) != 0) sb.append("volatile ");
1.237 - if ((mod & SYNCHRONIZED) != 0) sb.append("synchronized ");
1.238 - if ((mod & NATIVE) != 0) sb.append("native ");
1.239 - if ((mod & STRICT) != 0) sb.append("strictfp ");
1.240 - if ((mod & INTERFACE) != 0) sb.append("interface ");
1.241 -
1.242 - if ((len = sb.length()) > 0) /* trim trailing space */
1.243 - return sb.toString().substring(0, len-1);
1.244 - return "";
1.245 - }
1.246 -
1.247 - /*
1.248 - * Access modifier flag constants from tables 4.1, 4.4, 4.5, and 4.7 of
1.249 - * <cite>The Java™ Virtual Machine Specification</cite>
1.250 - */
1.251 -
1.252 - /**
1.253 - * The {@code int} value representing the {@code public}
1.254 - * modifier.
1.255 - */
1.256 - public static final int PUBLIC = 0x00000001;
1.257 -
1.258 - /**
1.259 - * The {@code int} value representing the {@code private}
1.260 - * modifier.
1.261 - */
1.262 - public static final int PRIVATE = 0x00000002;
1.263 -
1.264 - /**
1.265 - * The {@code int} value representing the {@code protected}
1.266 - * modifier.
1.267 - */
1.268 - public static final int PROTECTED = 0x00000004;
1.269 -
1.270 - /**
1.271 - * The {@code int} value representing the {@code static}
1.272 - * modifier.
1.273 - */
1.274 - public static final int STATIC = 0x00000008;
1.275 -
1.276 - /**
1.277 - * The {@code int} value representing the {@code final}
1.278 - * modifier.
1.279 - */
1.280 - public static final int FINAL = 0x00000010;
1.281 -
1.282 - /**
1.283 - * The {@code int} value representing the {@code synchronized}
1.284 - * modifier.
1.285 - */
1.286 - public static final int SYNCHRONIZED = 0x00000020;
1.287 -
1.288 - /**
1.289 - * The {@code int} value representing the {@code volatile}
1.290 - * modifier.
1.291 - */
1.292 - public static final int VOLATILE = 0x00000040;
1.293 -
1.294 - /**
1.295 - * The {@code int} value representing the {@code transient}
1.296 - * modifier.
1.297 - */
1.298 - public static final int TRANSIENT = 0x00000080;
1.299 -
1.300 - /**
1.301 - * The {@code int} value representing the {@code native}
1.302 - * modifier.
1.303 - */
1.304 - public static final int NATIVE = 0x00000100;
1.305 -
1.306 - /**
1.307 - * The {@code int} value representing the {@code interface}
1.308 - * modifier.
1.309 - */
1.310 - public static final int INTERFACE = 0x00000200;
1.311 -
1.312 - /**
1.313 - * The {@code int} value representing the {@code abstract}
1.314 - * modifier.
1.315 - */
1.316 - public static final int ABSTRACT = 0x00000400;
1.317 -
1.318 - /**
1.319 - * The {@code int} value representing the {@code strictfp}
1.320 - * modifier.
1.321 - */
1.322 - public static final int STRICT = 0x00000800;
1.323 -
1.324 - // Bits not (yet) exposed in the public API either because they
1.325 - // have different meanings for fields and methods and there is no
1.326 - // way to distinguish between the two in this class, or because
1.327 - // they are not Java programming language keywords
1.328 - static final int BRIDGE = 0x00000040;
1.329 - static final int VARARGS = 0x00000080;
1.330 - static final int SYNTHETIC = 0x00001000;
1.331 - static final int ANNOTATION= 0x00002000;
1.332 - static final int ENUM = 0x00004000;
1.333 - static boolean isSynthetic(int mod) {
1.334 - return (mod & SYNTHETIC) != 0;
1.335 - }
1.336 -
1.337 - /**
1.338 - * See JLSv3 section 8.1.1.
1.339 - */
1.340 - private static final int CLASS_MODIFIERS =
1.341 - Modifier.PUBLIC | Modifier.PROTECTED | Modifier.PRIVATE |
1.342 - Modifier.ABSTRACT | Modifier.STATIC | Modifier.FINAL |
1.343 - Modifier.STRICT;
1.344 -
1.345 - /**
1.346 - * See JLSv3 section 9.1.1.
1.347 - */
1.348 - private static final int INTERFACE_MODIFIERS =
1.349 - Modifier.PUBLIC | Modifier.PROTECTED | Modifier.PRIVATE |
1.350 - Modifier.ABSTRACT | Modifier.STATIC | Modifier.STRICT;
1.351 -
1.352 -
1.353 - /**
1.354 - * See JLSv3 section 8.8.3.
1.355 - */
1.356 - private static final int CONSTRUCTOR_MODIFIERS =
1.357 - Modifier.PUBLIC | Modifier.PROTECTED | Modifier.PRIVATE;
1.358 -
1.359 - /**
1.360 - * See JLSv3 section 8.4.3.
1.361 - */
1.362 - private static final int METHOD_MODIFIERS =
1.363 - Modifier.PUBLIC | Modifier.PROTECTED | Modifier.PRIVATE |
1.364 - Modifier.ABSTRACT | Modifier.STATIC | Modifier.FINAL |
1.365 - Modifier.SYNCHRONIZED | Modifier.NATIVE | Modifier.STRICT;
1.366 -
1.367 - /**
1.368 - * See JLSv3 section 8.3.1.
1.369 - */
1.370 - private static final int FIELD_MODIFIERS =
1.371 - Modifier.PUBLIC | Modifier.PROTECTED | Modifier.PRIVATE |
1.372 - Modifier.STATIC | Modifier.FINAL | Modifier.TRANSIENT |
1.373 - Modifier.VOLATILE;
1.374 -
1.375 - /**
1.376 - * Return an {@code int} value OR-ing together the source language
1.377 - * modifiers that can be applied to a class.
1.378 - * @return an {@code int} value OR-ing together the source language
1.379 - * modifiers that can be applied to a class.
1.380 - *
1.381 - * @jls 8.1.1 Class Modifiers
1.382 - * @since 1.7
1.383 - */
1.384 - public static int classModifiers() {
1.385 - return CLASS_MODIFIERS;
1.386 - }
1.387 -
1.388 - /**
1.389 - * Return an {@code int} value OR-ing together the source language
1.390 - * modifiers that can be applied to an interface.
1.391 - * @return an {@code int} value OR-ing together the source language
1.392 - * modifiers that can be applied to an inteface.
1.393 - *
1.394 - * @jls 9.1.1 Interface Modifiers
1.395 - * @since 1.7
1.396 - */
1.397 - public static int interfaceModifiers() {
1.398 - return INTERFACE_MODIFIERS;
1.399 - }
1.400 -
1.401 - /**
1.402 - * Return an {@code int} value OR-ing together the source language
1.403 - * modifiers that can be applied to a constructor.
1.404 - * @return an {@code int} value OR-ing together the source language
1.405 - * modifiers that can be applied to a constructor.
1.406 - *
1.407 - * @jls 8.8.3 Constructor Modifiers
1.408 - * @since 1.7
1.409 - */
1.410 - public static int constructorModifiers() {
1.411 - return CONSTRUCTOR_MODIFIERS;
1.412 - }
1.413 -
1.414 - /**
1.415 - * Return an {@code int} value OR-ing together the source language
1.416 - * modifiers that can be applied to a method.
1.417 - * @return an {@code int} value OR-ing together the source language
1.418 - * modifiers that can be applied to a method.
1.419 - *
1.420 - * @jls 8.4.3 Method Modifiers
1.421 - * @since 1.7
1.422 - */
1.423 - public static int methodModifiers() {
1.424 - return METHOD_MODIFIERS;
1.425 - }
1.426 -
1.427 -
1.428 - /**
1.429 - * Return an {@code int} value OR-ing together the source language
1.430 - * modifiers that can be applied to a field.
1.431 - * @return an {@code int} value OR-ing together the source language
1.432 - * modifiers that can be applied to a field.
1.433 - *
1.434 - * @jls 8.3.1 Field Modifiers
1.435 - * @since 1.7
1.436 - */
1.437 - public static int fieldModifiers() {
1.438 - return FIELD_MODIFIERS;
1.439 - }
1.440 -}