1.1 --- a/emul/src/main/java/java/lang/Class.java Wed Jan 23 20:16:48 2013 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,1205 +0,0 @@
1.4 -/*
1.5 - * Copyright (c) 1994, 2010, 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;
1.30 -
1.31 -import java.io.ByteArrayInputStream;
1.32 -import org.apidesign.bck2brwsr.emul.AnnotationImpl;
1.33 -import java.io.InputStream;
1.34 -import java.lang.annotation.Annotation;
1.35 -import java.lang.reflect.Field;
1.36 -import java.lang.reflect.Method;
1.37 -import java.lang.reflect.TypeVariable;
1.38 -import org.apidesign.bck2brwsr.core.JavaScriptBody;
1.39 -import org.apidesign.bck2brwsr.emul.MethodImpl;
1.40 -
1.41 -/**
1.42 - * Instances of the class {@code Class} represent classes and
1.43 - * interfaces in a running Java application. An enum is a kind of
1.44 - * class and an annotation is a kind of interface. Every array also
1.45 - * belongs to a class that is reflected as a {@code Class} object
1.46 - * that is shared by all arrays with the same element type and number
1.47 - * of dimensions. The primitive Java types ({@code boolean},
1.48 - * {@code byte}, {@code char}, {@code short},
1.49 - * {@code int}, {@code long}, {@code float}, and
1.50 - * {@code double}), and the keyword {@code void} are also
1.51 - * represented as {@code Class} objects.
1.52 - *
1.53 - * <p> {@code Class} has no public constructor. Instead {@code Class}
1.54 - * objects are constructed automatically by the Java Virtual Machine as classes
1.55 - * are loaded and by calls to the {@code defineClass} method in the class
1.56 - * loader.
1.57 - *
1.58 - * <p> The following example uses a {@code Class} object to print the
1.59 - * class name of an object:
1.60 - *
1.61 - * <p> <blockquote><pre>
1.62 - * void printClassName(Object obj) {
1.63 - * System.out.println("The class of " + obj +
1.64 - * " is " + obj.getClass().getName());
1.65 - * }
1.66 - * </pre></blockquote>
1.67 - *
1.68 - * <p> It is also possible to get the {@code Class} object for a named
1.69 - * type (or for void) using a class literal. See Section 15.8.2 of
1.70 - * <cite>The Java™ Language Specification</cite>.
1.71 - * For example:
1.72 - *
1.73 - * <p> <blockquote>
1.74 - * {@code System.out.println("The name of class Foo is: "+Foo.class.getName());}
1.75 - * </blockquote>
1.76 - *
1.77 - * @param <T> the type of the class modeled by this {@code Class}
1.78 - * object. For example, the type of {@code String.class} is {@code
1.79 - * Class<String>}. Use {@code Class<?>} if the class being modeled is
1.80 - * unknown.
1.81 - *
1.82 - * @author unascribed
1.83 - * @see java.lang.ClassLoader#defineClass(byte[], int, int)
1.84 - * @since JDK1.0
1.85 - */
1.86 -public final
1.87 - class Class<T> implements java.io.Serializable,
1.88 - java.lang.reflect.GenericDeclaration,
1.89 - java.lang.reflect.Type,
1.90 - java.lang.reflect.AnnotatedElement {
1.91 - private static final int ANNOTATION= 0x00002000;
1.92 - private static final int ENUM = 0x00004000;
1.93 - private static final int SYNTHETIC = 0x00001000;
1.94 -
1.95 - /*
1.96 - * Constructor. Only the Java Virtual Machine creates Class
1.97 - * objects.
1.98 - */
1.99 - private Class() {}
1.100 -
1.101 -
1.102 - /**
1.103 - * Converts the object to a string. The string representation is the
1.104 - * string "class" or "interface", followed by a space, and then by the
1.105 - * fully qualified name of the class in the format returned by
1.106 - * {@code getName}. If this {@code Class} object represents a
1.107 - * primitive type, this method returns the name of the primitive type. If
1.108 - * this {@code Class} object represents void this method returns
1.109 - * "void".
1.110 - *
1.111 - * @return a string representation of this class object.
1.112 - */
1.113 - public String toString() {
1.114 - return (isInterface() ? "interface " : (isPrimitive() ? "" : "class "))
1.115 - + getName();
1.116 - }
1.117 -
1.118 -
1.119 - /**
1.120 - * Returns the {@code Class} object associated with the class or
1.121 - * interface with the given string name. Invoking this method is
1.122 - * equivalent to:
1.123 - *
1.124 - * <blockquote>
1.125 - * {@code Class.forName(className, true, currentLoader)}
1.126 - * </blockquote>
1.127 - *
1.128 - * where {@code currentLoader} denotes the defining class loader of
1.129 - * the current class.
1.130 - *
1.131 - * <p> For example, the following code fragment returns the
1.132 - * runtime {@code Class} descriptor for the class named
1.133 - * {@code java.lang.Thread}:
1.134 - *
1.135 - * <blockquote>
1.136 - * {@code Class t = Class.forName("java.lang.Thread")}
1.137 - * </blockquote>
1.138 - * <p>
1.139 - * A call to {@code forName("X")} causes the class named
1.140 - * {@code X} to be initialized.
1.141 - *
1.142 - * @param className the fully qualified name of the desired class.
1.143 - * @return the {@code Class} object for the class with the
1.144 - * specified name.
1.145 - * @exception LinkageError if the linkage fails
1.146 - * @exception ExceptionInInitializerError if the initialization provoked
1.147 - * by this method fails
1.148 - * @exception ClassNotFoundException if the class cannot be located
1.149 - */
1.150 - public static Class<?> forName(String className)
1.151 - throws ClassNotFoundException {
1.152 - if (className.startsWith("[")) {
1.153 - Class<?> arrType = defineArray(className);
1.154 - Class<?> c = arrType;
1.155 - while (c != null && c.isArray()) {
1.156 - c = c.getComponentType0(); // verify component type is sane
1.157 - }
1.158 - return arrType;
1.159 - }
1.160 - Class<?> c = loadCls(className, className.replace('.', '_'));
1.161 - if (c == null) {
1.162 - throw new ClassNotFoundException(className);
1.163 - }
1.164 - return c;
1.165 - }
1.166 -
1.167 - @JavaScriptBody(args = {"n", "c" }, body =
1.168 - "if (vm[c]) return vm[c].$class;\n"
1.169 - + "if (vm.loadClass) {\n"
1.170 - + " vm.loadClass(n);\n"
1.171 - + " if (vm[c]) return vm[c].$class;\n"
1.172 - + "}\n"
1.173 - + "return null;"
1.174 - )
1.175 - private static native Class<?> loadCls(String n, String c);
1.176 -
1.177 -
1.178 - /**
1.179 - * Creates a new instance of the class represented by this {@code Class}
1.180 - * object. The class is instantiated as if by a {@code new}
1.181 - * expression with an empty argument list. The class is initialized if it
1.182 - * has not already been initialized.
1.183 - *
1.184 - * <p>Note that this method propagates any exception thrown by the
1.185 - * nullary constructor, including a checked exception. Use of
1.186 - * this method effectively bypasses the compile-time exception
1.187 - * checking that would otherwise be performed by the compiler.
1.188 - * The {@link
1.189 - * java.lang.reflect.Constructor#newInstance(java.lang.Object...)
1.190 - * Constructor.newInstance} method avoids this problem by wrapping
1.191 - * any exception thrown by the constructor in a (checked) {@link
1.192 - * java.lang.reflect.InvocationTargetException}.
1.193 - *
1.194 - * @return a newly allocated instance of the class represented by this
1.195 - * object.
1.196 - * @exception IllegalAccessException if the class or its nullary
1.197 - * constructor is not accessible.
1.198 - * @exception InstantiationException
1.199 - * if this {@code Class} represents an abstract class,
1.200 - * an interface, an array class, a primitive type, or void;
1.201 - * or if the class has no nullary constructor;
1.202 - * or if the instantiation fails for some other reason.
1.203 - * @exception ExceptionInInitializerError if the initialization
1.204 - * provoked by this method fails.
1.205 - * @exception SecurityException
1.206 - * If a security manager, <i>s</i>, is present and any of the
1.207 - * following conditions is met:
1.208 - *
1.209 - * <ul>
1.210 - *
1.211 - * <li> invocation of
1.212 - * {@link SecurityManager#checkMemberAccess
1.213 - * s.checkMemberAccess(this, Member.PUBLIC)} denies
1.214 - * creation of new instances of this class
1.215 - *
1.216 - * <li> the caller's class loader is not the same as or an
1.217 - * ancestor of the class loader for the current class and
1.218 - * invocation of {@link SecurityManager#checkPackageAccess
1.219 - * s.checkPackageAccess()} denies access to the package
1.220 - * of this class
1.221 - *
1.222 - * </ul>
1.223 - *
1.224 - */
1.225 - @JavaScriptBody(args = { "self", "illegal" }, body =
1.226 - "\nvar c = self.cnstr;"
1.227 - + "\nif (c['cons__V']) {"
1.228 - + "\n if ((c.cons__V.access & 0x1) != 0) {"
1.229 - + "\n var inst = c();"
1.230 - + "\n c.cons__V.call(inst);"
1.231 - + "\n return inst;"
1.232 - + "\n }"
1.233 - + "\n return illegal;"
1.234 - + "\n}"
1.235 - + "\nreturn null;"
1.236 - )
1.237 - private static native Object newInstance0(Class<?> self, Object illegal);
1.238 -
1.239 - public T newInstance()
1.240 - throws InstantiationException, IllegalAccessException
1.241 - {
1.242 - Object illegal = new Object();
1.243 - Object inst = newInstance0(this, illegal);
1.244 - if (inst == null) {
1.245 - throw new InstantiationException(getName());
1.246 - }
1.247 - if (inst == illegal) {
1.248 - throw new IllegalAccessException();
1.249 - }
1.250 - return (T)inst;
1.251 - }
1.252 -
1.253 - /**
1.254 - * Determines if the specified {@code Object} is assignment-compatible
1.255 - * with the object represented by this {@code Class}. This method is
1.256 - * the dynamic equivalent of the Java language {@code instanceof}
1.257 - * operator. The method returns {@code true} if the specified
1.258 - * {@code Object} argument is non-null and can be cast to the
1.259 - * reference type represented by this {@code Class} object without
1.260 - * raising a {@code ClassCastException.} It returns {@code false}
1.261 - * otherwise.
1.262 - *
1.263 - * <p> Specifically, if this {@code Class} object represents a
1.264 - * declared class, this method returns {@code true} if the specified
1.265 - * {@code Object} argument is an instance of the represented class (or
1.266 - * of any of its subclasses); it returns {@code false} otherwise. If
1.267 - * this {@code Class} object represents an array class, this method
1.268 - * returns {@code true} if the specified {@code Object} argument
1.269 - * can be converted to an object of the array class by an identity
1.270 - * conversion or by a widening reference conversion; it returns
1.271 - * {@code false} otherwise. If this {@code Class} object
1.272 - * represents an interface, this method returns {@code true} if the
1.273 - * class or any superclass of the specified {@code Object} argument
1.274 - * implements this interface; it returns {@code false} otherwise. If
1.275 - * this {@code Class} object represents a primitive type, this method
1.276 - * returns {@code false}.
1.277 - *
1.278 - * @param obj the object to check
1.279 - * @return true if {@code obj} is an instance of this class
1.280 - *
1.281 - * @since JDK1.1
1.282 - */
1.283 - public boolean isInstance(Object obj) {
1.284 - String prop = "$instOf_" + getName().replace('.', '_');
1.285 - return hasProperty(obj, prop);
1.286 - }
1.287 -
1.288 - @JavaScriptBody(args = { "who", "prop" }, body =
1.289 - "if (who[prop]) return true; else return false;"
1.290 - )
1.291 - private static native boolean hasProperty(Object who, String prop);
1.292 -
1.293 -
1.294 - /**
1.295 - * Determines if the class or interface represented by this
1.296 - * {@code Class} object is either the same as, or is a superclass or
1.297 - * superinterface of, the class or interface represented by the specified
1.298 - * {@code Class} parameter. It returns {@code true} if so;
1.299 - * otherwise it returns {@code false}. If this {@code Class}
1.300 - * object represents a primitive type, this method returns
1.301 - * {@code true} if the specified {@code Class} parameter is
1.302 - * exactly this {@code Class} object; otherwise it returns
1.303 - * {@code false}.
1.304 - *
1.305 - * <p> Specifically, this method tests whether the type represented by the
1.306 - * specified {@code Class} parameter can be converted to the type
1.307 - * represented by this {@code Class} object via an identity conversion
1.308 - * or via a widening reference conversion. See <em>The Java Language
1.309 - * Specification</em>, sections 5.1.1 and 5.1.4 , for details.
1.310 - *
1.311 - * @param cls the {@code Class} object to be checked
1.312 - * @return the {@code boolean} value indicating whether objects of the
1.313 - * type {@code cls} can be assigned to objects of this class
1.314 - * @exception NullPointerException if the specified Class parameter is
1.315 - * null.
1.316 - * @since JDK1.1
1.317 - */
1.318 - public native boolean isAssignableFrom(Class<?> cls);
1.319 -
1.320 -
1.321 - /**
1.322 - * Determines if the specified {@code Class} object represents an
1.323 - * interface type.
1.324 - *
1.325 - * @return {@code true} if this object represents an interface;
1.326 - * {@code false} otherwise.
1.327 - */
1.328 - public boolean isInterface() {
1.329 - return (getAccess() & 0x200) != 0;
1.330 - }
1.331 -
1.332 - @JavaScriptBody(args = {}, body = "return this.access;")
1.333 - private native int getAccess();
1.334 -
1.335 -
1.336 - /**
1.337 - * Determines if this {@code Class} object represents an array class.
1.338 - *
1.339 - * @return {@code true} if this object represents an array class;
1.340 - * {@code false} otherwise.
1.341 - * @since JDK1.1
1.342 - */
1.343 - public boolean isArray() {
1.344 - return hasProperty(this, "array"); // NOI18N
1.345 - }
1.346 -
1.347 -
1.348 - /**
1.349 - * Determines if the specified {@code Class} object represents a
1.350 - * primitive type.
1.351 - *
1.352 - * <p> There are nine predefined {@code Class} objects to represent
1.353 - * the eight primitive types and void. These are created by the Java
1.354 - * Virtual Machine, and have the same names as the primitive types that
1.355 - * they represent, namely {@code boolean}, {@code byte},
1.356 - * {@code char}, {@code short}, {@code int},
1.357 - * {@code long}, {@code float}, and {@code double}.
1.358 - *
1.359 - * <p> These objects may only be accessed via the following public static
1.360 - * final variables, and are the only {@code Class} objects for which
1.361 - * this method returns {@code true}.
1.362 - *
1.363 - * @return true if and only if this class represents a primitive type
1.364 - *
1.365 - * @see java.lang.Boolean#TYPE
1.366 - * @see java.lang.Character#TYPE
1.367 - * @see java.lang.Byte#TYPE
1.368 - * @see java.lang.Short#TYPE
1.369 - * @see java.lang.Integer#TYPE
1.370 - * @see java.lang.Long#TYPE
1.371 - * @see java.lang.Float#TYPE
1.372 - * @see java.lang.Double#TYPE
1.373 - * @see java.lang.Void#TYPE
1.374 - * @since JDK1.1
1.375 - */
1.376 - @JavaScriptBody(args = {}, body =
1.377 - "if (this.primitive) return true;"
1.378 - + "else return false;"
1.379 - )
1.380 - public native boolean isPrimitive();
1.381 -
1.382 - /**
1.383 - * Returns true if this {@code Class} object represents an annotation
1.384 - * type. Note that if this method returns true, {@link #isInterface()}
1.385 - * would also return true, as all annotation types are also interfaces.
1.386 - *
1.387 - * @return {@code true} if this class object represents an annotation
1.388 - * type; {@code false} otherwise
1.389 - * @since 1.5
1.390 - */
1.391 - public boolean isAnnotation() {
1.392 - return (getModifiers() & ANNOTATION) != 0;
1.393 - }
1.394 -
1.395 - /**
1.396 - * Returns {@code true} if this class is a synthetic class;
1.397 - * returns {@code false} otherwise.
1.398 - * @return {@code true} if and only if this class is a synthetic class as
1.399 - * defined by the Java Language Specification.
1.400 - * @since 1.5
1.401 - */
1.402 - public boolean isSynthetic() {
1.403 - return (getModifiers() & SYNTHETIC) != 0;
1.404 - }
1.405 -
1.406 - /**
1.407 - * Returns the name of the entity (class, interface, array class,
1.408 - * primitive type, or void) represented by this {@code Class} object,
1.409 - * as a {@code String}.
1.410 - *
1.411 - * <p> If this class object represents a reference type that is not an
1.412 - * array type then the binary name of the class is returned, as specified
1.413 - * by
1.414 - * <cite>The Java™ Language Specification</cite>.
1.415 - *
1.416 - * <p> If this class object represents a primitive type or void, then the
1.417 - * name returned is a {@code String} equal to the Java language
1.418 - * keyword corresponding to the primitive type or void.
1.419 - *
1.420 - * <p> If this class object represents a class of arrays, then the internal
1.421 - * form of the name consists of the name of the element type preceded by
1.422 - * one or more '{@code [}' characters representing the depth of the array
1.423 - * nesting. The encoding of element type names is as follows:
1.424 - *
1.425 - * <blockquote><table summary="Element types and encodings">
1.426 - * <tr><th> Element Type <th> <th> Encoding
1.427 - * <tr><td> boolean <td> <td align=center> Z
1.428 - * <tr><td> byte <td> <td align=center> B
1.429 - * <tr><td> char <td> <td align=center> C
1.430 - * <tr><td> class or interface
1.431 - * <td> <td align=center> L<i>classname</i>;
1.432 - * <tr><td> double <td> <td align=center> D
1.433 - * <tr><td> float <td> <td align=center> F
1.434 - * <tr><td> int <td> <td align=center> I
1.435 - * <tr><td> long <td> <td align=center> J
1.436 - * <tr><td> short <td> <td align=center> S
1.437 - * </table></blockquote>
1.438 - *
1.439 - * <p> The class or interface name <i>classname</i> is the binary name of
1.440 - * the class specified above.
1.441 - *
1.442 - * <p> Examples:
1.443 - * <blockquote><pre>
1.444 - * String.class.getName()
1.445 - * returns "java.lang.String"
1.446 - * byte.class.getName()
1.447 - * returns "byte"
1.448 - * (new Object[3]).getClass().getName()
1.449 - * returns "[Ljava.lang.Object;"
1.450 - * (new int[3][4][5][6][7][8][9]).getClass().getName()
1.451 - * returns "[[[[[[[I"
1.452 - * </pre></blockquote>
1.453 - *
1.454 - * @return the name of the class or interface
1.455 - * represented by this object.
1.456 - */
1.457 - public String getName() {
1.458 - return jvmName().replace('/', '.');
1.459 - }
1.460 -
1.461 - @JavaScriptBody(args = {}, body = "return this.jvmName;")
1.462 - private native String jvmName();
1.463 -
1.464 -
1.465 - /**
1.466 - * Returns an array of {@code TypeVariable} objects that represent the
1.467 - * type variables declared by the generic declaration represented by this
1.468 - * {@code GenericDeclaration} object, in declaration order. Returns an
1.469 - * array of length 0 if the underlying generic declaration declares no type
1.470 - * variables.
1.471 - *
1.472 - * @return an array of {@code TypeVariable} objects that represent
1.473 - * the type variables declared by this generic declaration
1.474 - * @throws java.lang.reflect.GenericSignatureFormatError if the generic
1.475 - * signature of this generic declaration does not conform to
1.476 - * the format specified in
1.477 - * <cite>The Java™ Virtual Machine Specification</cite>
1.478 - * @since 1.5
1.479 - */
1.480 - public TypeVariable<Class<T>>[] getTypeParameters() {
1.481 - throw new UnsupportedOperationException();
1.482 - }
1.483 -
1.484 - /**
1.485 - * Returns the {@code Class} representing the superclass of the entity
1.486 - * (class, interface, primitive type or void) represented by this
1.487 - * {@code Class}. If this {@code Class} represents either the
1.488 - * {@code Object} class, an interface, a primitive type, or void, then
1.489 - * null is returned. If this object represents an array class then the
1.490 - * {@code Class} object representing the {@code Object} class is
1.491 - * returned.
1.492 - *
1.493 - * @return the superclass of the class represented by this object.
1.494 - */
1.495 - @JavaScriptBody(args = {}, body = "return this.superclass;")
1.496 - public native Class<? super T> getSuperclass();
1.497 -
1.498 - /**
1.499 - * Returns the Java language modifiers for this class or interface, encoded
1.500 - * in an integer. The modifiers consist of the Java Virtual Machine's
1.501 - * constants for {@code public}, {@code protected},
1.502 - * {@code private}, {@code final}, {@code static},
1.503 - * {@code abstract} and {@code interface}; they should be decoded
1.504 - * using the methods of class {@code Modifier}.
1.505 - *
1.506 - * <p> If the underlying class is an array class, then its
1.507 - * {@code public}, {@code private} and {@code protected}
1.508 - * modifiers are the same as those of its component type. If this
1.509 - * {@code Class} represents a primitive type or void, its
1.510 - * {@code public} modifier is always {@code true}, and its
1.511 - * {@code protected} and {@code private} modifiers are always
1.512 - * {@code false}. If this object represents an array class, a
1.513 - * primitive type or void, then its {@code final} modifier is always
1.514 - * {@code true} and its interface modifier is always
1.515 - * {@code false}. The values of its other modifiers are not determined
1.516 - * by this specification.
1.517 - *
1.518 - * <p> The modifier encodings are defined in <em>The Java Virtual Machine
1.519 - * Specification</em>, table 4.1.
1.520 - *
1.521 - * @return the {@code int} representing the modifiers for this class
1.522 - * @see java.lang.reflect.Modifier
1.523 - * @since JDK1.1
1.524 - */
1.525 - public native int getModifiers();
1.526 -
1.527 -
1.528 - /**
1.529 - * Returns the simple name of the underlying class as given in the
1.530 - * source code. Returns an empty string if the underlying class is
1.531 - * anonymous.
1.532 - *
1.533 - * <p>The simple name of an array is the simple name of the
1.534 - * component type with "[]" appended. In particular the simple
1.535 - * name of an array whose component type is anonymous is "[]".
1.536 - *
1.537 - * @return the simple name of the underlying class
1.538 - * @since 1.5
1.539 - */
1.540 - public String getSimpleName() {
1.541 - if (isArray())
1.542 - return getComponentType().getSimpleName()+"[]";
1.543 -
1.544 - String simpleName = getSimpleBinaryName();
1.545 - if (simpleName == null) { // top level class
1.546 - simpleName = getName();
1.547 - return simpleName.substring(simpleName.lastIndexOf(".")+1); // strip the package name
1.548 - }
1.549 - // According to JLS3 "Binary Compatibility" (13.1) the binary
1.550 - // name of non-package classes (not top level) is the binary
1.551 - // name of the immediately enclosing class followed by a '$' followed by:
1.552 - // (for nested and inner classes): the simple name.
1.553 - // (for local classes): 1 or more digits followed by the simple name.
1.554 - // (for anonymous classes): 1 or more digits.
1.555 -
1.556 - // Since getSimpleBinaryName() will strip the binary name of
1.557 - // the immediatly enclosing class, we are now looking at a
1.558 - // string that matches the regular expression "\$[0-9]*"
1.559 - // followed by a simple name (considering the simple of an
1.560 - // anonymous class to be the empty string).
1.561 -
1.562 - // Remove leading "\$[0-9]*" from the name
1.563 - int length = simpleName.length();
1.564 - if (length < 1 || simpleName.charAt(0) != '$')
1.565 - throw new IllegalStateException("Malformed class name");
1.566 - int index = 1;
1.567 - while (index < length && isAsciiDigit(simpleName.charAt(index)))
1.568 - index++;
1.569 - // Eventually, this is the empty string iff this is an anonymous class
1.570 - return simpleName.substring(index);
1.571 - }
1.572 -
1.573 - /**
1.574 - * Returns the "simple binary name" of the underlying class, i.e.,
1.575 - * the binary name without the leading enclosing class name.
1.576 - * Returns {@code null} if the underlying class is a top level
1.577 - * class.
1.578 - */
1.579 - private String getSimpleBinaryName() {
1.580 - Class<?> enclosingClass = null; // XXX getEnclosingClass();
1.581 - if (enclosingClass == null) // top level class
1.582 - return null;
1.583 - // Otherwise, strip the enclosing class' name
1.584 - try {
1.585 - return getName().substring(enclosingClass.getName().length());
1.586 - } catch (IndexOutOfBoundsException ex) {
1.587 - throw new IllegalStateException("Malformed class name");
1.588 - }
1.589 - }
1.590 -
1.591 - /**
1.592 - * Returns an array containing {@code Field} objects reflecting all
1.593 - * the accessible public fields of the class or interface represented by
1.594 - * this {@code Class} object. The elements in the array returned are
1.595 - * not sorted and are not in any particular order. This method returns an
1.596 - * array of length 0 if the class or interface has no accessible public
1.597 - * fields, or if it represents an array class, a primitive type, or void.
1.598 - *
1.599 - * <p> Specifically, if this {@code Class} object represents a class,
1.600 - * this method returns the public fields of this class and of all its
1.601 - * superclasses. If this {@code Class} object represents an
1.602 - * interface, this method returns the fields of this interface and of all
1.603 - * its superinterfaces.
1.604 - *
1.605 - * <p> The implicit length field for array class is not reflected by this
1.606 - * method. User code should use the methods of class {@code Array} to
1.607 - * manipulate arrays.
1.608 - *
1.609 - * <p> See <em>The Java Language Specification</em>, sections 8.2 and 8.3.
1.610 - *
1.611 - * @return the array of {@code Field} objects representing the
1.612 - * public fields
1.613 - * @exception SecurityException
1.614 - * If a security manager, <i>s</i>, is present and any of the
1.615 - * following conditions is met:
1.616 - *
1.617 - * <ul>
1.618 - *
1.619 - * <li> invocation of
1.620 - * {@link SecurityManager#checkMemberAccess
1.621 - * s.checkMemberAccess(this, Member.PUBLIC)} denies
1.622 - * access to the fields within this class
1.623 - *
1.624 - * <li> the caller's class loader is not the same as or an
1.625 - * ancestor of the class loader for the current class and
1.626 - * invocation of {@link SecurityManager#checkPackageAccess
1.627 - * s.checkPackageAccess()} denies access to the package
1.628 - * of this class
1.629 - *
1.630 - * </ul>
1.631 - *
1.632 - * @since JDK1.1
1.633 - */
1.634 - public Field[] getFields() throws SecurityException {
1.635 - throw new SecurityException();
1.636 - }
1.637 -
1.638 - /**
1.639 - * Returns an array containing {@code Method} objects reflecting all
1.640 - * the public <em>member</em> methods of the class or interface represented
1.641 - * by this {@code Class} object, including those declared by the class
1.642 - * or interface and those inherited from superclasses and
1.643 - * superinterfaces. Array classes return all the (public) member methods
1.644 - * inherited from the {@code Object} class. The elements in the array
1.645 - * returned are not sorted and are not in any particular order. This
1.646 - * method returns an array of length 0 if this {@code Class} object
1.647 - * represents a class or interface that has no public member methods, or if
1.648 - * this {@code Class} object represents a primitive type or void.
1.649 - *
1.650 - * <p> The class initialization method {@code <clinit>} is not
1.651 - * included in the returned array. If the class declares multiple public
1.652 - * member methods with the same parameter types, they are all included in
1.653 - * the returned array.
1.654 - *
1.655 - * <p> See <em>The Java Language Specification</em>, sections 8.2 and 8.4.
1.656 - *
1.657 - * @return the array of {@code Method} objects representing the
1.658 - * public methods of this class
1.659 - * @exception SecurityException
1.660 - * If a security manager, <i>s</i>, is present and any of the
1.661 - * following conditions is met:
1.662 - *
1.663 - * <ul>
1.664 - *
1.665 - * <li> invocation of
1.666 - * {@link SecurityManager#checkMemberAccess
1.667 - * s.checkMemberAccess(this, Member.PUBLIC)} denies
1.668 - * access to the methods within this class
1.669 - *
1.670 - * <li> the caller's class loader is not the same as or an
1.671 - * ancestor of the class loader for the current class and
1.672 - * invocation of {@link SecurityManager#checkPackageAccess
1.673 - * s.checkPackageAccess()} denies access to the package
1.674 - * of this class
1.675 - *
1.676 - * </ul>
1.677 - *
1.678 - * @since JDK1.1
1.679 - */
1.680 - public Method[] getMethods() throws SecurityException {
1.681 - return MethodImpl.findMethods(this, 0x01);
1.682 - }
1.683 -
1.684 - /**
1.685 - * Returns a {@code Field} object that reflects the specified public
1.686 - * member field of the class or interface represented by this
1.687 - * {@code Class} object. The {@code name} parameter is a
1.688 - * {@code String} specifying the simple name of the desired field.
1.689 - *
1.690 - * <p> The field to be reflected is determined by the algorithm that
1.691 - * follows. Let C be the class represented by this object:
1.692 - * <OL>
1.693 - * <LI> If C declares a public field with the name specified, that is the
1.694 - * field to be reflected.</LI>
1.695 - * <LI> If no field was found in step 1 above, this algorithm is applied
1.696 - * recursively to each direct superinterface of C. The direct
1.697 - * superinterfaces are searched in the order they were declared.</LI>
1.698 - * <LI> If no field was found in steps 1 and 2 above, and C has a
1.699 - * superclass S, then this algorithm is invoked recursively upon S.
1.700 - * If C has no superclass, then a {@code NoSuchFieldException}
1.701 - * is thrown.</LI>
1.702 - * </OL>
1.703 - *
1.704 - * <p> See <em>The Java Language Specification</em>, sections 8.2 and 8.3.
1.705 - *
1.706 - * @param name the field name
1.707 - * @return the {@code Field} object of this class specified by
1.708 - * {@code name}
1.709 - * @exception NoSuchFieldException if a field with the specified name is
1.710 - * not found.
1.711 - * @exception NullPointerException if {@code name} is {@code null}
1.712 - * @exception SecurityException
1.713 - * If a security manager, <i>s</i>, is present and any of the
1.714 - * following conditions is met:
1.715 - *
1.716 - * <ul>
1.717 - *
1.718 - * <li> invocation of
1.719 - * {@link SecurityManager#checkMemberAccess
1.720 - * s.checkMemberAccess(this, Member.PUBLIC)} denies
1.721 - * access to the field
1.722 - *
1.723 - * <li> the caller's class loader is not the same as or an
1.724 - * ancestor of the class loader for the current class and
1.725 - * invocation of {@link SecurityManager#checkPackageAccess
1.726 - * s.checkPackageAccess()} denies access to the package
1.727 - * of this class
1.728 - *
1.729 - * </ul>
1.730 - *
1.731 - * @since JDK1.1
1.732 - */
1.733 - public Field getField(String name)
1.734 - throws SecurityException {
1.735 - throw new SecurityException();
1.736 - }
1.737 -
1.738 -
1.739 - /**
1.740 - * Returns a {@code Method} object that reflects the specified public
1.741 - * member method of the class or interface represented by this
1.742 - * {@code Class} object. The {@code name} parameter is a
1.743 - * {@code String} specifying the simple name of the desired method. The
1.744 - * {@code parameterTypes} parameter is an array of {@code Class}
1.745 - * objects that identify the method's formal parameter types, in declared
1.746 - * order. If {@code parameterTypes} is {@code null}, it is
1.747 - * treated as if it were an empty array.
1.748 - *
1.749 - * <p> If the {@code name} is "{@code <init>};"or "{@code <clinit>}" a
1.750 - * {@code NoSuchMethodException} is raised. Otherwise, the method to
1.751 - * be reflected is determined by the algorithm that follows. Let C be the
1.752 - * class represented by this object:
1.753 - * <OL>
1.754 - * <LI> C is searched for any <I>matching methods</I>. If no matching
1.755 - * method is found, the algorithm of step 1 is invoked recursively on
1.756 - * the superclass of C.</LI>
1.757 - * <LI> If no method was found in step 1 above, the superinterfaces of C
1.758 - * are searched for a matching method. If any such method is found, it
1.759 - * is reflected.</LI>
1.760 - * </OL>
1.761 - *
1.762 - * To find a matching method in a class C: If C declares exactly one
1.763 - * public method with the specified name and exactly the same formal
1.764 - * parameter types, that is the method reflected. If more than one such
1.765 - * method is found in C, and one of these methods has a return type that is
1.766 - * more specific than any of the others, that method is reflected;
1.767 - * otherwise one of the methods is chosen arbitrarily.
1.768 - *
1.769 - * <p>Note that there may be more than one matching method in a
1.770 - * class because while the Java language forbids a class to
1.771 - * declare multiple methods with the same signature but different
1.772 - * return types, the Java virtual machine does not. This
1.773 - * increased flexibility in the virtual machine can be used to
1.774 - * implement various language features. For example, covariant
1.775 - * returns can be implemented with {@linkplain
1.776 - * java.lang.reflect.Method#isBridge bridge methods}; the bridge
1.777 - * method and the method being overridden would have the same
1.778 - * signature but different return types.
1.779 - *
1.780 - * <p> See <em>The Java Language Specification</em>, sections 8.2 and 8.4.
1.781 - *
1.782 - * @param name the name of the method
1.783 - * @param parameterTypes the list of parameters
1.784 - * @return the {@code Method} object that matches the specified
1.785 - * {@code name} and {@code parameterTypes}
1.786 - * @exception NoSuchMethodException if a matching method is not found
1.787 - * or if the name is "<init>"or "<clinit>".
1.788 - * @exception NullPointerException if {@code name} is {@code null}
1.789 - * @exception SecurityException
1.790 - * If a security manager, <i>s</i>, is present and any of the
1.791 - * following conditions is met:
1.792 - *
1.793 - * <ul>
1.794 - *
1.795 - * <li> invocation of
1.796 - * {@link SecurityManager#checkMemberAccess
1.797 - * s.checkMemberAccess(this, Member.PUBLIC)} denies
1.798 - * access to the method
1.799 - *
1.800 - * <li> the caller's class loader is not the same as or an
1.801 - * ancestor of the class loader for the current class and
1.802 - * invocation of {@link SecurityManager#checkPackageAccess
1.803 - * s.checkPackageAccess()} denies access to the package
1.804 - * of this class
1.805 - *
1.806 - * </ul>
1.807 - *
1.808 - * @since JDK1.1
1.809 - */
1.810 - public Method getMethod(String name, Class<?>... parameterTypes)
1.811 - throws SecurityException, NoSuchMethodException {
1.812 - Method m = MethodImpl.findMethod(this, name, parameterTypes);
1.813 - if (m == null) {
1.814 - StringBuilder sb = new StringBuilder();
1.815 - sb.append(getName()).append('.').append(name).append('(');
1.816 - String sep = "";
1.817 - for (int i = 0; i < parameterTypes.length; i++) {
1.818 - sb.append(sep).append(parameterTypes[i].getName());
1.819 - sep = ", ";
1.820 - }
1.821 - sb.append(')');
1.822 - throw new NoSuchMethodException(sb.toString());
1.823 - }
1.824 - return m;
1.825 - }
1.826 -
1.827 - /**
1.828 - * Character.isDigit answers {@code true} to some non-ascii
1.829 - * digits. This one does not.
1.830 - */
1.831 - private static boolean isAsciiDigit(char c) {
1.832 - return '0' <= c && c <= '9';
1.833 - }
1.834 -
1.835 - /**
1.836 - * Returns the canonical name of the underlying class as
1.837 - * defined by the Java Language Specification. Returns null if
1.838 - * the underlying class does not have a canonical name (i.e., if
1.839 - * it is a local or anonymous class or an array whose component
1.840 - * type does not have a canonical name).
1.841 - * @return the canonical name of the underlying class if it exists, and
1.842 - * {@code null} otherwise.
1.843 - * @since 1.5
1.844 - */
1.845 - public String getCanonicalName() {
1.846 - if (isArray()) {
1.847 - String canonicalName = getComponentType().getCanonicalName();
1.848 - if (canonicalName != null)
1.849 - return canonicalName + "[]";
1.850 - else
1.851 - return null;
1.852 - }
1.853 -// if (isLocalOrAnonymousClass())
1.854 -// return null;
1.855 -// Class<?> enclosingClass = getEnclosingClass();
1.856 - Class<?> enclosingClass = null;
1.857 - if (enclosingClass == null) { // top level class
1.858 - return getName();
1.859 - } else {
1.860 - String enclosingName = enclosingClass.getCanonicalName();
1.861 - if (enclosingName == null)
1.862 - return null;
1.863 - return enclosingName + "." + getSimpleName();
1.864 - }
1.865 - }
1.866 -
1.867 - /**
1.868 - * Finds a resource with a given name. The rules for searching resources
1.869 - * associated with a given class are implemented by the defining
1.870 - * {@linkplain ClassLoader class loader} of the class. This method
1.871 - * delegates to this object's class loader. If this object was loaded by
1.872 - * the bootstrap class loader, the method delegates to {@link
1.873 - * ClassLoader#getSystemResourceAsStream}.
1.874 - *
1.875 - * <p> Before delegation, an absolute resource name is constructed from the
1.876 - * given resource name using this algorithm:
1.877 - *
1.878 - * <ul>
1.879 - *
1.880 - * <li> If the {@code name} begins with a {@code '/'}
1.881 - * (<tt>'\u002f'</tt>), then the absolute name of the resource is the
1.882 - * portion of the {@code name} following the {@code '/'}.
1.883 - *
1.884 - * <li> Otherwise, the absolute name is of the following form:
1.885 - *
1.886 - * <blockquote>
1.887 - * {@code modified_package_name/name}
1.888 - * </blockquote>
1.889 - *
1.890 - * <p> Where the {@code modified_package_name} is the package name of this
1.891 - * object with {@code '/'} substituted for {@code '.'}
1.892 - * (<tt>'\u002e'</tt>).
1.893 - *
1.894 - * </ul>
1.895 - *
1.896 - * @param name name of the desired resource
1.897 - * @return A {@link java.io.InputStream} object or {@code null} if
1.898 - * no resource with this name is found
1.899 - * @throws NullPointerException If {@code name} is {@code null}
1.900 - * @since JDK1.1
1.901 - */
1.902 - public InputStream getResourceAsStream(String name) {
1.903 - name = resolveName(name);
1.904 - byte[] arr = getResourceAsStream0(name);
1.905 - return arr == null ? null : new ByteArrayInputStream(arr);
1.906 - }
1.907 -
1.908 - @JavaScriptBody(args = "name", body =
1.909 - "return (vm.loadBytes) ? vm.loadBytes(name) : null;"
1.910 - )
1.911 - private static native byte[] getResourceAsStream0(String name);
1.912 -
1.913 - /**
1.914 - * Finds a resource with a given name. The rules for searching resources
1.915 - * associated with a given class are implemented by the defining
1.916 - * {@linkplain ClassLoader class loader} of the class. This method
1.917 - * delegates to this object's class loader. If this object was loaded by
1.918 - * the bootstrap class loader, the method delegates to {@link
1.919 - * ClassLoader#getSystemResource}.
1.920 - *
1.921 - * <p> Before delegation, an absolute resource name is constructed from the
1.922 - * given resource name using this algorithm:
1.923 - *
1.924 - * <ul>
1.925 - *
1.926 - * <li> If the {@code name} begins with a {@code '/'}
1.927 - * (<tt>'\u002f'</tt>), then the absolute name of the resource is the
1.928 - * portion of the {@code name} following the {@code '/'}.
1.929 - *
1.930 - * <li> Otherwise, the absolute name is of the following form:
1.931 - *
1.932 - * <blockquote>
1.933 - * {@code modified_package_name/name}
1.934 - * </blockquote>
1.935 - *
1.936 - * <p> Where the {@code modified_package_name} is the package name of this
1.937 - * object with {@code '/'} substituted for {@code '.'}
1.938 - * (<tt>'\u002e'</tt>).
1.939 - *
1.940 - * </ul>
1.941 - *
1.942 - * @param name name of the desired resource
1.943 - * @return A {@link java.net.URL} object or {@code null} if no
1.944 - * resource with this name is found
1.945 - * @since JDK1.1
1.946 - */
1.947 - public java.net.URL getResource(String name) {
1.948 - name = resolveName(name);
1.949 - ClassLoader cl = null;
1.950 - if (cl==null) {
1.951 - // A system class.
1.952 - return ClassLoader.getSystemResource(name);
1.953 - }
1.954 - return cl.getResource(name);
1.955 - }
1.956 -
1.957 -
1.958 - /**
1.959 - * Add a package name prefix if the name is not absolute Remove leading "/"
1.960 - * if name is absolute
1.961 - */
1.962 - private String resolveName(String name) {
1.963 - if (name == null) {
1.964 - return name;
1.965 - }
1.966 - if (!name.startsWith("/")) {
1.967 - Class<?> c = this;
1.968 - while (c.isArray()) {
1.969 - c = c.getComponentType();
1.970 - }
1.971 - String baseName = c.getName();
1.972 - int index = baseName.lastIndexOf('.');
1.973 - if (index != -1) {
1.974 - name = baseName.substring(0, index).replace('.', '/')
1.975 - +"/"+name;
1.976 - }
1.977 - } else {
1.978 - name = name.substring(1);
1.979 - }
1.980 - return name;
1.981 - }
1.982 -
1.983 - /**
1.984 - * Returns the class loader for the class. Some implementations may use
1.985 - * null to represent the bootstrap class loader. This method will return
1.986 - * null in such implementations if this class was loaded by the bootstrap
1.987 - * class loader.
1.988 - *
1.989 - * <p> If a security manager is present, and the caller's class loader is
1.990 - * not null and the caller's class loader is not the same as or an ancestor of
1.991 - * the class loader for the class whose class loader is requested, then
1.992 - * this method calls the security manager's {@code checkPermission}
1.993 - * method with a {@code RuntimePermission("getClassLoader")}
1.994 - * permission to ensure it's ok to access the class loader for the class.
1.995 - *
1.996 - * <p>If this object
1.997 - * represents a primitive type or void, null is returned.
1.998 - *
1.999 - * @return the class loader that loaded the class or interface
1.1000 - * represented by this object.
1.1001 - * @throws SecurityException
1.1002 - * if a security manager exists and its
1.1003 - * {@code checkPermission} method denies
1.1004 - * access to the class loader for the class.
1.1005 - * @see java.lang.ClassLoader
1.1006 - * @see SecurityManager#checkPermission
1.1007 - * @see java.lang.RuntimePermission
1.1008 - */
1.1009 - public ClassLoader getClassLoader() {
1.1010 - throw new SecurityException();
1.1011 - }
1.1012 -
1.1013 - /**
1.1014 - * Returns the {@code Class} representing the component type of an
1.1015 - * array. If this class does not represent an array class this method
1.1016 - * returns null.
1.1017 - *
1.1018 - * @return the {@code Class} representing the component type of this
1.1019 - * class if this class is an array
1.1020 - * @see java.lang.reflect.Array
1.1021 - * @since JDK1.1
1.1022 - */
1.1023 - public Class<?> getComponentType() {
1.1024 - if (isArray()) {
1.1025 - try {
1.1026 - return getComponentType0();
1.1027 - } catch (ClassNotFoundException cnfe) {
1.1028 - throw new IllegalStateException(cnfe);
1.1029 - }
1.1030 - }
1.1031 - return null;
1.1032 - }
1.1033 -
1.1034 - private Class<?> getComponentType0() throws ClassNotFoundException {
1.1035 - String n = getName().substring(1);
1.1036 - switch (n.charAt(0)) {
1.1037 - case 'L':
1.1038 - n = n.substring(1, n.length() - 1);
1.1039 - return Class.forName(n);
1.1040 - case 'I':
1.1041 - return Integer.TYPE;
1.1042 - case 'J':
1.1043 - return Long.TYPE;
1.1044 - case 'D':
1.1045 - return Double.TYPE;
1.1046 - case 'F':
1.1047 - return Float.TYPE;
1.1048 - case 'B':
1.1049 - return Byte.TYPE;
1.1050 - case 'Z':
1.1051 - return Boolean.TYPE;
1.1052 - case 'S':
1.1053 - return Short.TYPE;
1.1054 - case 'V':
1.1055 - return Void.TYPE;
1.1056 - case 'C':
1.1057 - return Character.TYPE;
1.1058 - case '[':
1.1059 - return defineArray(n);
1.1060 - default:
1.1061 - throw new ClassNotFoundException("Unknown component type of " + getName());
1.1062 - }
1.1063 - }
1.1064 -
1.1065 - @JavaScriptBody(args = { "sig" }, body =
1.1066 - "var c = Array[sig];\n" +
1.1067 - "if (c) return c;\n" +
1.1068 - "c = vm.java_lang_Class(true);\n" +
1.1069 - "c.jvmName = sig;\n" +
1.1070 - "c.superclass = vm.java_lang_Object(false).$class;\n" +
1.1071 - "c.array = true;\n" +
1.1072 - "Array[sig] = c;\n" +
1.1073 - "return c;"
1.1074 - )
1.1075 - private static native Class<?> defineArray(String sig);
1.1076 -
1.1077 - /**
1.1078 - * Returns true if and only if this class was declared as an enum in the
1.1079 - * source code.
1.1080 - *
1.1081 - * @return true if and only if this class was declared as an enum in the
1.1082 - * source code
1.1083 - * @since 1.5
1.1084 - */
1.1085 - public boolean isEnum() {
1.1086 - // An enum must both directly extend java.lang.Enum and have
1.1087 - // the ENUM bit set; classes for specialized enum constants
1.1088 - // don't do the former.
1.1089 - return (this.getModifiers() & ENUM) != 0 &&
1.1090 - this.getSuperclass() == java.lang.Enum.class;
1.1091 - }
1.1092 -
1.1093 - /**
1.1094 - * Casts an object to the class or interface represented
1.1095 - * by this {@code Class} object.
1.1096 - *
1.1097 - * @param obj the object to be cast
1.1098 - * @return the object after casting, or null if obj is null
1.1099 - *
1.1100 - * @throws ClassCastException if the object is not
1.1101 - * null and is not assignable to the type T.
1.1102 - *
1.1103 - * @since 1.5
1.1104 - */
1.1105 - public T cast(Object obj) {
1.1106 - if (obj != null && !isInstance(obj))
1.1107 - throw new ClassCastException(cannotCastMsg(obj));
1.1108 - return (T) obj;
1.1109 - }
1.1110 -
1.1111 - private String cannotCastMsg(Object obj) {
1.1112 - return "Cannot cast " + obj.getClass().getName() + " to " + getName();
1.1113 - }
1.1114 -
1.1115 - /**
1.1116 - * Casts this {@code Class} object to represent a subclass of the class
1.1117 - * represented by the specified class object. Checks that that the cast
1.1118 - * is valid, and throws a {@code ClassCastException} if it is not. If
1.1119 - * this method succeeds, it always returns a reference to this class object.
1.1120 - *
1.1121 - * <p>This method is useful when a client needs to "narrow" the type of
1.1122 - * a {@code Class} object to pass it to an API that restricts the
1.1123 - * {@code Class} objects that it is willing to accept. A cast would
1.1124 - * generate a compile-time warning, as the correctness of the cast
1.1125 - * could not be checked at runtime (because generic types are implemented
1.1126 - * by erasure).
1.1127 - *
1.1128 - * @return this {@code Class} object, cast to represent a subclass of
1.1129 - * the specified class object.
1.1130 - * @throws ClassCastException if this {@code Class} object does not
1.1131 - * represent a subclass of the specified class (here "subclass" includes
1.1132 - * the class itself).
1.1133 - * @since 1.5
1.1134 - */
1.1135 - public <U> Class<? extends U> asSubclass(Class<U> clazz) {
1.1136 - if (clazz.isAssignableFrom(this))
1.1137 - return (Class<? extends U>) this;
1.1138 - else
1.1139 - throw new ClassCastException(this.toString());
1.1140 - }
1.1141 -
1.1142 - @JavaScriptBody(args = { "ac" },
1.1143 - body =
1.1144 - "if (this.anno) {"
1.1145 - + " return this.anno['L' + ac.jvmName + ';'];"
1.1146 - + "} else return null;"
1.1147 - )
1.1148 - private Object getAnnotationData(Class<?> annotationClass) {
1.1149 - throw new UnsupportedOperationException();
1.1150 - }
1.1151 - /**
1.1152 - * @throws NullPointerException {@inheritDoc}
1.1153 - * @since 1.5
1.1154 - */
1.1155 - public <A extends Annotation> A getAnnotation(Class<A> annotationClass) {
1.1156 - Object data = getAnnotationData(annotationClass);
1.1157 - return data == null ? null : AnnotationImpl.create(annotationClass, data);
1.1158 - }
1.1159 -
1.1160 - /**
1.1161 - * @throws NullPointerException {@inheritDoc}
1.1162 - * @since 1.5
1.1163 - */
1.1164 - @JavaScriptBody(args = { "ac" },
1.1165 - body = "if (this.anno && this.anno['L' + ac.jvmName + ';']) { return true; }"
1.1166 - + "else return false;"
1.1167 - )
1.1168 - public boolean isAnnotationPresent(
1.1169 - Class<? extends Annotation> annotationClass) {
1.1170 - if (annotationClass == null)
1.1171 - throw new NullPointerException();
1.1172 -
1.1173 - return getAnnotation(annotationClass) != null;
1.1174 - }
1.1175 -
1.1176 - @JavaScriptBody(args = {}, body = "return this.anno;")
1.1177 - private Object getAnnotationData() {
1.1178 - throw new UnsupportedOperationException();
1.1179 - }
1.1180 -
1.1181 - /**
1.1182 - * @since 1.5
1.1183 - */
1.1184 - public Annotation[] getAnnotations() {
1.1185 - Object data = getAnnotationData();
1.1186 - return data == null ? new Annotation[0] : AnnotationImpl.create(data);
1.1187 - }
1.1188 -
1.1189 - /**
1.1190 - * @since 1.5
1.1191 - */
1.1192 - public Annotation[] getDeclaredAnnotations() {
1.1193 - throw new UnsupportedOperationException();
1.1194 - }
1.1195 -
1.1196 - @JavaScriptBody(args = "type", body = ""
1.1197 - + "var c = vm.java_lang_Class(true);"
1.1198 - + "c.jvmName = type;"
1.1199 - + "c.primitive = true;"
1.1200 - + "return c;"
1.1201 - )
1.1202 - native static Class getPrimitiveClass(String type);
1.1203 -
1.1204 - @JavaScriptBody(args = {}, body =
1.1205 - "return vm.desiredAssertionStatus ? vm.desiredAssertionStatus : false;"
1.1206 - )
1.1207 - public native boolean desiredAssertionStatus();
1.1208 -}