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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/vm/reference/java/lang/reflect/VMConstructor.java | |
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Diffstat (limited to 'libjava/classpath/vm/reference/java/lang/reflect/VMConstructor.java')
-rw-r--r-- | libjava/classpath/vm/reference/java/lang/reflect/VMConstructor.java | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/libjava/classpath/vm/reference/java/lang/reflect/VMConstructor.java b/libjava/classpath/vm/reference/java/lang/reflect/VMConstructor.java new file mode 100644 index 000000000..c6f319026 --- /dev/null +++ b/libjava/classpath/vm/reference/java/lang/reflect/VMConstructor.java @@ -0,0 +1,169 @@ +/* java.lang.reflect.VMConstructor - VM interface for reflection of Java constructors + Copyright (C) 1998, 2001, 2004, 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package java.lang.reflect; + +import java.lang.annotation.Annotation; + +import java.util.Arrays; + +final class VMConstructor +{ + Class clazz; + int slot; + + /** + * This field allows us to refer back to the main constructor instance. + * It is set by the constructor of Constructor. + */ + Constructor cons; + + VMConstructor(Class clazz, int slot) + { + this.clazz = clazz; + this.slot = slot; + } + + public Class getDeclaringClass() + { + return clazz; + } + + /** + * Return the raw modifiers for this constructor. In particular + * this will include the synthetic and varargs bits. + * @return the constructor's modifiers + */ + native int getModifiersInternal(); + + /** + * Get the parameter list for this constructor, in declaration order. If the + * constructor takes no parameters, returns a 0-length array (not null). + * + * @return a list of the types of the constructor's parameters + */ + native Class[] getParameterTypes(); + + /** + * Get the exception types this constructor says it throws, in no particular + * order. If the constructor has no throws clause, returns a 0-length array + * (not null). + * + * @return a list of the types in the constructor's throws clause + */ + native Class[] getExceptionTypes(); + + native Object construct(Object[] args) + throws InstantiationException, IllegalAccessException, + InvocationTargetException; + + /** + * Return the String in the Signature attribute for this constructor. If there + * is no Signature attribute, return null. + */ + native String getSignature(); + + /** + * <p> + * Return an array of arrays representing the annotations on each + * of the constructor's parameters. The outer array is aligned against + * the parameters of the constructors and is thus equal in length to + * the number of parameters (thus having a length zero if there are none). + * Each array element in the outer array contains an inner array which + * holds the annotations. This array has a length of zero if the parameter + * has no annotations. + * </p> + * <p> + * The returned annotations are serialized. Changing the annotations has + * no affect on the return value of future calls to this method. + * </p> + * + * @return an array of arrays which represents the annotations used on the + * parameters of this constructor. The order of the array elements + * matches the declaration order of the parameters. + * @since 1.5 + */ + native Annotation[][] getParameterAnnotations(); + + /** + * Compare two objects to see if they are semantically equivalent. + * Two Constructors are semantically equivalent if they have the same + * declaring class and the same parameter list. This ignores different + * exception clauses, but since you can't create a Method except through the + * VM, this is just the == relation. + * + * @param o the object to compare to + * @return <code>true</code> if they are equal; <code>false</code> if not. + */ + public boolean equals(Object o) + { + if (!(o instanceof Constructor)) + return false; + Constructor that = (Constructor)o; + if (clazz != that.getDeclaringClass()) + return false; + if (!Arrays.equals(getParameterTypes(), that.getParameterTypes())) + return false; + return true; + } + + /** + * Returns the element's annotation for the specified annotation type, + * or <code>null</code> if no such annotation exists. + * + * @param annotationClass the type of annotation to look for. + * @return this element's annotation for the specified type, or + * <code>null</code> if no such annotation exists. + * @throws NullPointerException if the annotation class is <code>null</code>. + */ + native Annotation getAnnotation(Class annotationClass); + + /** + * Returns all annotations directly defined by the element. If there are + * no annotations directly associated with the element, then a zero-length + * array will be returned. The returned array may be modified by the client + * code, but this will have no effect on the annotation content of this + * class, and hence no effect on the return value of this method for + * future callers. + * + * @return the annotations directly defined by the element. + * @since 1.5 + */ + native Annotation[] getDeclaredAnnotations(); + +} |