169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal/*
269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Javassist, a Java-bytecode translator toolkit.
369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Copyright (C) 2004 Bill Burke. All Rights Reserved.
469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal *
569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * The contents of this file are subject to the Mozilla Public License Version
669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 1.1 (the "License"); you may not use this file except in compliance with
769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * the License.  Alternatively, the contents of this file may be used under
869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * the terms of the GNU Lesser General Public License Version 2.1 or later.
969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal *
1069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Software distributed under the License is distributed on an "AS IS" basis,
1169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
1269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * for the specific language governing rights and limitations under the
1369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * License.
1469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */
1569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
1669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalpackage javassist.bytecode.annotation;
1769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
1869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport javassist.ClassPool;
1969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport javassist.bytecode.ConstPool;
2069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.io.IOException;
2169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.lang.reflect.Method;
2269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
2369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal/**
2469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Floating-point number constant value.
2569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal *
2669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * @author <a href="mailto:bill@jboss.org">Bill Burke</a>
2769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * @author Shigeru Chiba
2869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * @version $Revision: 1.7 $
2969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */
3069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalpublic class FloatMemberValue extends MemberValue {
3169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    int valueIndex;
3269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
3369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
3469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Constructs a float constant value.  The initial value is specified
3569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * by the constant pool entry at the given index.
3669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     *
3769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * @param index     the index of a CONSTANT_Float_info structure.
3869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
3969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public FloatMemberValue(int index, ConstPool cp) {
4069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        super('F', cp);
4169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        this.valueIndex = index;
4269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
4369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
4469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
4569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Constructs a float constant value.
4669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     *
4769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * @param f         the initial value.
4869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
4969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public FloatMemberValue(float f, ConstPool cp) {
5069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        super('F', cp);
5169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        setValue(f);
5269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
5369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
5469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
5569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Constructs a float constant value.  The initial value is 0.0.
5669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
5769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public FloatMemberValue(ConstPool cp) {
5869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        super('F', cp);
5969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        setValue(0.0F);
6069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
6169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
6269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    Object getValue(ClassLoader cl, ClassPool cp, Method m) {
6369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        return new Float(getValue());
6469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
6569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
6669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    Class getType(ClassLoader cl) {
6769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        return float.class;
6869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
6969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
7069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
7169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Obtains the value of the member.
7269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
7369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public float getValue() {
7469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        return cp.getFloatInfo(valueIndex);
7569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
7669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
7769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
7869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Sets the value of the member.
7969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
8069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public void setValue(float newValue) {
8169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        valueIndex = cp.addFloatInfo(newValue);
8269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
8369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
8469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
8569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Obtains the string representation of this object.
8669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
8769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public String toString() {
8869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        return Float.toString(getValue());
8969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
9069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
9169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
9269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Writes the value.
9369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
9469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public void write(AnnotationsWriter writer) throws IOException {
9569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        writer.constValueIndex(getValue());
9669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
9769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal
9869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    /**
9969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     * Accepts a visitor.
10069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal     */
10169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    public void accept(MemberValueVisitor visitor) {
10269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal        visitor.visitFloatMemberValue(this);
10369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal    }
10469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal}
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