/src/main/java/com/alibaba/fastjson/asm/FieldWriter.java
Java | 116 lines | 29 code | 12 blank | 75 comment | 3 complexity | 809136a690fa682d3290e4ef85c1d3e7 MD5 | raw file
- /***
- * ASM: a very small and fast Java bytecode manipulation framework
- * Copyright (c) 2000-2007 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 com.alibaba.fastjson.asm;
- /**
- * An {@link FieldVisitor} that generates Java fields in bytecode form.
- *
- * @author Eric Bruneton
- */
- final class FieldWriter implements FieldVisitor {
- /**
- * Next field writer (see {@link ClassWriter#firstField firstField}).
- */
- FieldWriter next;
- /**
- * 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;
- // ------------------------------------------------------------------------
- // 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 <tt>null</tt>.
- * @param value the field's constant value. May be <tt>null</tt>.
- */
- FieldWriter(final ClassWriter cw, final int access, final String name, final String desc){
- if (cw.firstField == null) {
- cw.firstField = this;
- } else {
- cw.lastField.next = this;
- }
- cw.lastField = this;
- this.access = access;
- this.name = cw.newUTF8(name);
- this.desc = cw.newUTF8(desc);
- }
- // ------------------------------------------------------------------------
- // Implementation of the FieldVisitor interface
- // ------------------------------------------------------------------------
- public void visitEnd() {
- }
- // ------------------------------------------------------------------------
- // Utility methods
- // ------------------------------------------------------------------------
- /**
- * Returns the size of this field.
- *
- * @return the size of this field.
- */
- int getSize() {
- return 8;
- }
- /**
- * 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) {
- int mask = Opcodes.ACC_DEPRECATED | ClassWriter.ACC_SYNTHETIC_ATTRIBUTE | ((access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) / (ClassWriter.ACC_SYNTHETIC_ATTRIBUTE / Opcodes.ACC_SYNTHETIC));
- out.putShort(access & ~mask).putShort(name).putShort(desc);
- int attributeCount = 0;
- out.putShort(attributeCount);
- }
- }