aboutsummaryrefslogtreecommitdiff
path: root/src/com/sun/org/apache/bcel/internal/generic/FieldGen.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/com/sun/org/apache/bcel/internal/generic/FieldGen.java')
-rw-r--r--src/com/sun/org/apache/bcel/internal/generic/FieldGen.java313
1 files changed, 0 insertions, 313 deletions
diff --git a/src/com/sun/org/apache/bcel/internal/generic/FieldGen.java b/src/com/sun/org/apache/bcel/internal/generic/FieldGen.java
deleted file mode 100644
index 290a3c0..0000000
--- a/src/com/sun/org/apache/bcel/internal/generic/FieldGen.java
+++ /dev/null
@@ -1,313 +0,0 @@
-/*
- * reserved comment block
- * DO NOT REMOVE OR ALTER!
- */
-package com.sun.org.apache.bcel.internal.generic;
-
-/* ====================================================================
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2001 The Apache Software Foundation. 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. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Apache" and "Apache Software Foundation" and
- * "Apache BCEL" must not be used to endorse or promote products
- * derived from this software without prior written permission. For
- * written permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * "Apache BCEL", nor may "Apache" appear in their name, without
- * prior written permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
- * ITS 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.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
-
-import com.sun.org.apache.bcel.internal.Constants;
-import com.sun.org.apache.bcel.internal.classfile.*;
-import java.util.ArrayList;
-import java.util.Iterator;
-
-/**
- * Template class for building up a field. The only extraordinary thing
- * one can do is to add a constant value attribute to a field (which must of
- * course be compatible with to the declared type).
- *
- * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
- * @see Field
- */
-public class FieldGen extends FieldGenOrMethodGen {
- private Object value = null;
-
- /**
- * Declare a field. If it is static (isStatic() == true) and has a
- * basic type like int or String it may have an initial value
- * associated with it as defined by setInitValue().
- *
- * @param access_flags access qualifiers
- * @param type field type
- * @param name field name
- * @param cp constant pool
- */
- public FieldGen(int access_flags, Type type, String name, ConstantPoolGen cp) {
- setAccessFlags(access_flags);
- setType(type);
- setName(name);
- setConstantPool(cp);
- }
-
- /**
- * Instantiate from existing field.
- *
- * @param field Field object
- * @param cp constant pool (must contain the same entries as the field's constant pool)
- */
- public FieldGen(Field field, ConstantPoolGen cp) {
- this(field.getAccessFlags(), Type.getType(field.getSignature()), field.getName(), cp);
-
- Attribute[] attrs = field.getAttributes();
-
- for(int i=0; i < attrs.length; i++) {
- if(attrs[i] instanceof ConstantValue)
- setValue(((ConstantValue)attrs[i]).getConstantValueIndex());
- else
- addAttribute(attrs[i]);
- }
- }
-
- private void setValue(int index) {
- ConstantPool cp = this.cp.getConstantPool();
- Constant c = cp.getConstant(index);
- value = ((ConstantObject)c).getConstantValue(cp);
- }
-
- /**
- * Set (optional) initial value of field, otherwise it will be set to null/0/false
- * by the JVM automatically.
- */
- public void setInitValue(String str) {
- checkType(new ObjectType("java.lang.String"));
-
- if(str != null)
- value = str;
- }
-
- public void setInitValue(long l) {
- checkType(Type.LONG);
-
- if(l != 0L)
- value = new Long(l);
- }
-
- public void setInitValue(int i) {
- checkType(Type.INT);
-
- if(i != 0)
- value = new Integer(i);
- }
-
- public void setInitValue(short s) {
- checkType(Type.SHORT);
-
- if(s != 0)
- value = new Integer(s);
- }
-
- public void setInitValue(char c) {
- checkType(Type.CHAR);
-
- if(c != 0)
- value = new Integer(c);
- }
-
- public void setInitValue(byte b) {
- checkType(Type.BYTE);
-
- if(b != 0)
- value = new Integer(b);
- }
-
- public void setInitValue(boolean b) {
- checkType(Type.BOOLEAN);
-
- if(b)
- value = new Integer(1);
- }
-
- public void setInitValue(float f) {
- checkType(Type.FLOAT);
-
- if(f != 0.0)
- value = new Float(f);
- }
-
- public void setInitValue(double d) {
- checkType(Type.DOUBLE);
-
- if(d != 0.0)
- value = new Double(d);
- }
-
- /** Remove any initial value.
- */
- public void cancelInitValue() {
- value = null;
- }
-
- private void checkType(Type atype) {
- if(type == null)
- throw new ClassGenException("You haven't defined the type of the field yet");
-
- if(!isFinal())
- throw new ClassGenException("Only final fields may have an initial value!");
-
- if(!type.equals(atype))
- throw new ClassGenException("Types are not compatible: " + type + " vs. " + atype);
- }
-
- /**
- * Get field object after having set up all necessary values.
- */
- public Field getField() {
- String signature = getSignature();
- int name_index = cp.addUtf8(name);
- int signature_index = cp.addUtf8(signature);
-
- if(value != null) {
- checkType(type);
- int index = addConstant();
- addAttribute(new ConstantValue(cp.addUtf8("ConstantValue"),
- 2, index, cp.getConstantPool()));
- }
-
- return new Field(access_flags, name_index, signature_index, getAttributes(),
- cp.getConstantPool());
- }
-
- private int addConstant() {
- switch(type.getType()) {
- case Constants.T_INT: case Constants.T_CHAR: case Constants.T_BYTE:
- case Constants.T_BOOLEAN: case Constants.T_SHORT:
- return cp.addInteger(((Integer)value).intValue());
-
- case Constants.T_FLOAT:
- return cp.addFloat(((Float)value).floatValue());
-
- case Constants.T_DOUBLE:
- return cp.addDouble(((Double)value).doubleValue());
-
- case Constants.T_LONG:
- return cp.addLong(((Long)value).longValue());
-
- case Constants.T_REFERENCE:
- return cp.addString(((String)value));
-
- default:
- throw new RuntimeException("Oops: Unhandled : " + type.getType());
- }
- }
-
- public String getSignature() { return type.getSignature(); }
-
- private ArrayList observers;
-
- /** Add observer for this object.
- */
- public void addObserver(FieldObserver o) {
- if(observers == null)
- observers = new ArrayList();
-
- observers.add(o);
- }
-
- /** Remove observer for this object.
- */
- public void removeObserver(FieldObserver o) {
- if(observers != null)
- observers.remove(o);
- }
-
- /** Call notify() method on all observers. This method is not called
- * automatically whenever the state has changed, but has to be
- * called by the user after he has finished editing the object.
- */
- public void update() {
- if(observers != null)
- for(Iterator e = observers.iterator(); e.hasNext(); )
- ((FieldObserver)e.next()).notify(this);
- }
-
- public String getInitValue() {
- if(value != null) {
- return value.toString();
- } else
- return null;
- }
-
- /**
- * Return string representation close to declaration format,
- * `public static final short MAX = 100', e.g..
- *
- * @return String representation of field
- */
- public final String toString() {
- String name, signature, access; // Short cuts to constant pool
-
- access = Utility.accessToString(access_flags);
- access = access.equals("")? "" : (access + " ");
- signature = type.toString();
- name = getName();
-
- StringBuffer buf = new StringBuffer(access + signature + " " + name);
- String value = getInitValue();
-
- if(value != null)
- buf.append(" = " + value);
-
- return buf.toString();
- }
-
- /** @return deep copy of this field
- */
- public FieldGen copy(ConstantPoolGen cp) {
- FieldGen fg = (FieldGen)clone();
-
- fg.setConstantPool(cp);
- return fg;
- }
-}