oracle.toplink.libraries.asm.attrs.RuntimeVisibleAnnotations Maven / Gradle / Ivy
/**
* ASM: a very small and fast Java bytecode manipulation framework
* Copyright (c) 2000,2002,2003 INRIA, France Telecom
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
package oracle.toplink.libraries.asm.attrs;
import java.util.ArrayList;
import java.util.List;
import oracle.toplink.libraries.asm.Attribute;
import oracle.toplink.libraries.asm.ByteVector;
import oracle.toplink.libraries.asm.ClassReader;
import oracle.toplink.libraries.asm.ClassWriter;
import oracle.toplink.libraries.asm.Label;
/**
* The RuntimeVisibleAnnotations attribute is a variable length attribute in the
* attributes table of the ClassFile, field_info, and method_info structures. The
* RuntimeVisibleAnnotations attribute records runtime-visible Java programming
* language annotations on the corresponding class, method, or field. Each
* ClassFile, field_info, and method_info structure may contain at most one
* RuntimeVisibleAnnotations attribute, which records all the runtime-visible Java
* programming language annotations on the corresponding program element. The JVM
* must make these annotations available so they can be returned by the
* appropriate reflective APIs.
*
* The RuntimeVisibleAnnotations attribute has the following format:
*
* RuntimeVisibleAnnotations_attribute {
* u2 attribute_name_index;
* u4 attribute_length;
* u2 num_annotations;
* annotation annotations[num_annotations];
* }
*
* The items of the RuntimeVisibleAnnotations structure are as follows:
*
* - attribute_name_index
* - The value of the attribute_name_index item must be a valid index into the
* constant_pool table. The constant_pool entry at that index must be a
* CONSTANT_Utf8_info structure representing the string
* "RuntimeVisibleAnnotations".
* - attribute_length
* - The value of the attribute_length item indicates the length of the attribute,
* excluding the initial six bytes. The value of the attribute_length item is
* thus dependent on the number of runtime-visible annotations represented by
* the structure, and their values.
* - num_annotations
* - The value of the num_annotations item gives the number of runtime-visible
* annotations represented by the structure. Note that a maximum of 65535
* runtime-visible Java programming language annotations may be directly
* attached to a program element.
* - annotations
* - Each value of the annotations table represents a single runtime-visible
* {@link Annotation annotation} on a program element.
*
*
* @see JSR 175 : A Metadata
* Facility for the Java Programming Language
*
* @author Eugene Kuleshov
*/
public class RuntimeVisibleAnnotations extends Attribute {
/**
* List of Annotation.
*
* @associates <{oracle.toplink.libraries.asm.attrs.Annotation}>
* @label annotations
*/
public List annotations = new ArrayList();
public RuntimeVisibleAnnotations () {
super("RuntimeVisibleAnnotations");
}
protected Attribute read (ClassReader cr, int off,
int len, char[] buf, int codeOff, Label[] labels) {
RuntimeVisibleAnnotations atr = new RuntimeVisibleAnnotations();
Annotation.readAnnotations(atr.annotations, cr, off, buf);
return atr;
}
protected ByteVector write (ClassWriter cw, byte[] code,
int len, int maxStack, int maxLocals) {
return Annotation.writeAnnotations(new ByteVector(), annotations, cw);
}
/**
* Returns value in the format described in JSR-175 for Java source code.
*
* @return value in the format described in JSR-175 for Java source code.
*/
public String toString () {
return Annotation.stringAnnotations(annotations);
}
}