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/***
* ASM: a very small and fast Java bytecode manipulation framework
* Copyright (c) 2000-2011 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 jersey.repackaged.org.objectweb.asm;
/**
* An {@link FieldVisitor} that generates Java fields in bytecode form.
*
* @author Eric Bruneton
*/
final class FieldWriter extends FieldVisitor {
/**
* The class writer to which this field must be added.
*/
private final ClassWriter cw;
/**
* Access flags of this field.
*/
private final int access;
/**
* The index of the constant pool item that contains the name of this
* method.
*/
private final int name;
/**
* The index of the constant pool item that contains the descriptor of this
* field.
*/
private final int desc;
/**
* The index of the constant pool item that contains the signature of this
* field.
*/
private int signature;
/**
* The index of the constant pool item that contains the constant value of
* this field.
*/
private int value;
/**
* The runtime visible annotations of this field. May be null.
*/
private AnnotationWriter anns;
/**
* The runtime invisible annotations of this field. May be null.
*/
private AnnotationWriter ianns;
/**
* The runtime visible type annotations of this field. May be null.
*/
private AnnotationWriter tanns;
/**
* The runtime invisible type annotations of this field. May be
* null.
*/
private AnnotationWriter itanns;
/**
* The non standard attributes of this field. May be null.
*/
private Attribute attrs;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
/**
* Constructs a new {@link FieldWriter}.
*
* @param cw
* the class writer to which this field must be added.
* @param access
* the field's access flags (see {@link Opcodes}).
* @param name
* the field's name.
* @param desc
* the field's descriptor (see {@link Type}).
* @param signature
* the field's signature. May be null.
* @param value
* the field's constant value. May be null.
*/
FieldWriter(final ClassWriter cw, final int access, final String name,
final String desc, final String signature, final Object value) {
super(Opcodes.ASM5);
if (cw.firstField == null) {
cw.firstField = this;
} else {
cw.lastField.fv = this;
}
cw.lastField = this;
this.cw = cw;
this.access = access;
this.name = cw.newUTF8(name);
this.desc = cw.newUTF8(desc);
if (ClassReader.SIGNATURES && signature != null) {
this.signature = cw.newUTF8(signature);
}
if (value != null) {
this.value = cw.newConstItem(value).index;
}
}
// ------------------------------------------------------------------------
// Implementation of the FieldVisitor abstract class
// ------------------------------------------------------------------------
@Override
public AnnotationVisitor visitAnnotation(final String desc,
final boolean visible) {
if (!ClassReader.ANNOTATIONS) {
return null;
}
ByteVector bv = new ByteVector();
// write type, and reserve space for values count
bv.putShort(cw.newUTF8(desc)).putShort(0);
AnnotationWriter aw = new AnnotationWriter(cw, true, bv, bv, 2);
if (visible) {
aw.next = anns;
anns = aw;
} else {
aw.next = ianns;
ianns = aw;
}
return aw;
}
@Override
public AnnotationVisitor visitTypeAnnotation(final int typeRef,
final TypePath typePath, final String desc, final boolean visible) {
if (!ClassReader.ANNOTATIONS) {
return null;
}
ByteVector bv = new ByteVector();
// write target_type and target_info
AnnotationWriter.putTarget(typeRef, typePath, bv);
// write type, and reserve space for values count
bv.putShort(cw.newUTF8(desc)).putShort(0);
AnnotationWriter aw = new AnnotationWriter(cw, true, bv, bv,
bv.length - 2);
if (visible) {
aw.next = tanns;
tanns = aw;
} else {
aw.next = itanns;
itanns = aw;
}
return aw;
}
@Override
public void visitAttribute(final Attribute attr) {
attr.next = attrs;
attrs = attr;
}
@Override
public void visitEnd() {
}
// ------------------------------------------------------------------------
// Utility methods
// ------------------------------------------------------------------------
/**
* Returns the size of this field.
*
* @return the size of this field.
*/
int getSize() {
int size = 8;
if (value != 0) {
cw.newUTF8("ConstantValue");
size += 8;
}
if ((access & Opcodes.ACC_SYNTHETIC) != 0) {
if ((cw.version & 0xFFFF) < Opcodes.V1_5
|| (access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) != 0) {
cw.newUTF8("Synthetic");
size += 6;
}
}
if ((access & Opcodes.ACC_DEPRECATED) != 0) {
cw.newUTF8("Deprecated");
size += 6;
}
if (ClassReader.SIGNATURES && signature != 0) {
cw.newUTF8("Signature");
size += 8;
}
if (ClassReader.ANNOTATIONS && anns != null) {
cw.newUTF8("RuntimeVisibleAnnotations");
size += 8 + anns.getSize();
}
if (ClassReader.ANNOTATIONS && ianns != null) {
cw.newUTF8("RuntimeInvisibleAnnotations");
size += 8 + ianns.getSize();
}
if (ClassReader.ANNOTATIONS && tanns != null) {
cw.newUTF8("RuntimeVisibleTypeAnnotations");
size += 8 + tanns.getSize();
}
if (ClassReader.ANNOTATIONS && itanns != null) {
cw.newUTF8("RuntimeInvisibleTypeAnnotations");
size += 8 + itanns.getSize();
}
if (attrs != null) {
size += attrs.getSize(cw, null, 0, -1, -1);
}
return size;
}
/**
* Puts the content of this field into the given byte vector.
*
* @param out
* where the content of this field must be put.
*/
void put(final ByteVector out) {
final int FACTOR = ClassWriter.TO_ACC_SYNTHETIC;
int mask = Opcodes.ACC_DEPRECATED | ClassWriter.ACC_SYNTHETIC_ATTRIBUTE
| ((access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) / FACTOR);
out.putShort(access & ~mask).putShort(name).putShort(desc);
int attributeCount = 0;
if (value != 0) {
++attributeCount;
}
if ((access & Opcodes.ACC_SYNTHETIC) != 0) {
if ((cw.version & 0xFFFF) < Opcodes.V1_5
|| (access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) != 0) {
++attributeCount;
}
}
if ((access & Opcodes.ACC_DEPRECATED) != 0) {
++attributeCount;
}
if (ClassReader.SIGNATURES && signature != 0) {
++attributeCount;
}
if (ClassReader.ANNOTATIONS && anns != null) {
++attributeCount;
}
if (ClassReader.ANNOTATIONS && ianns != null) {
++attributeCount;
}
if (ClassReader.ANNOTATIONS && tanns != null) {
++attributeCount;
}
if (ClassReader.ANNOTATIONS && itanns != null) {
++attributeCount;
}
if (attrs != null) {
attributeCount += attrs.getCount();
}
out.putShort(attributeCount);
if (value != 0) {
out.putShort(cw.newUTF8("ConstantValue"));
out.putInt(2).putShort(value);
}
if ((access & Opcodes.ACC_SYNTHETIC) != 0) {
if ((cw.version & 0xFFFF) < Opcodes.V1_5
|| (access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) != 0) {
out.putShort(cw.newUTF8("Synthetic")).putInt(0);
}
}
if ((access & Opcodes.ACC_DEPRECATED) != 0) {
out.putShort(cw.newUTF8("Deprecated")).putInt(0);
}
if (ClassReader.SIGNATURES && signature != 0) {
out.putShort(cw.newUTF8("Signature"));
out.putInt(2).putShort(signature);
}
if (ClassReader.ANNOTATIONS && anns != null) {
out.putShort(cw.newUTF8("RuntimeVisibleAnnotations"));
anns.put(out);
}
if (ClassReader.ANNOTATIONS && ianns != null) {
out.putShort(cw.newUTF8("RuntimeInvisibleAnnotations"));
ianns.put(out);
}
if (ClassReader.ANNOTATIONS && tanns != null) {
out.putShort(cw.newUTF8("RuntimeVisibleTypeAnnotations"));
tanns.put(out);
}
if (ClassReader.ANNOTATIONS && itanns != null) {
out.putShort(cw.newUTF8("RuntimeInvisibleTypeAnnotations"));
itanns.put(out);
}
if (attrs != null) {
attrs.put(cw, null, 0, -1, -1, out);
}
}
}
