1 cananian 1.1.2.2 // ConstantFloat.java, created Mon Jan 18 22:44:37 1999 by cananian 2 cananian 1.1.2.1 // Copyright (C) 1998 C. Scott Ananian <cananian@alumni.princeton.edu> 3 cananian 1.1.2.1 // Licensed under the terms of the GNU GPL; see COPYING for details. 4 cananian 1.1.2.1 package harpoon.IR.RawClass; 5 cananian 1.1.2.1 6 cananian 1.1.2.1 /** 7 cananian 1.1.2.1 * The <code>CONSTANT_Float_info</code> structure represents four-byte 8 cananian 1.1.2.1 * floating-point numeric constants. 9 cananian 1.1.2.1 * 10 cananian 1.1.2.1 * @author C. Scott Ananian <cananian@alumni.princeton.edu> 11 cananian 1.2 * @version $Id: ConstantFloat.java,v 1.2 2002/02/25 21:05:26 cananian Exp $ 12 cananian 1.1.2.1 * @see "The Java Virtual Machine Specification, section 4.4.4" 13 cananian 1.1.2.1 * @see Constant 14 cananian 1.1.2.1 * @see ConstantInteger 15 cananian 1.1.2.1 */ 16 cananian 1.1.2.1 public class ConstantFloat extends ConstantValue { 17 cananian 1.1.2.1 /** The value of the <code>float</code> constant. */ 18 cananian 1.1.2.1 public float val; 19 cananian 1.1.2.1 20 cananian 1.1.2.1 /** Constructor. */ 21 cananian 1.1.2.1 ConstantFloat(ClassFile parent, ClassDataInputStream in) 22 cananian 1.1.2.1 throws java.io.IOException { 23 cananian 1.1.2.1 super(parent); 24 cananian 1.1.2.1 val = in.readFloat(); 25 cananian 1.1.2.1 } 26 cananian 1.1.2.1 /** Constructor. */ 27 cananian 1.1.2.1 public ConstantFloat(ClassFile parent, float val) { 28 cananian 1.1.2.1 super(parent); 29 cananian 1.1.2.1 this.val = val; 30 cananian 1.1.2.1 } 31 cananian 1.1.2.1 32 cananian 1.1.2.1 /** Write to a bytecode file. */ 33 cananian 1.1.2.1 public void write(ClassDataOutputStream out) throws java.io.IOException { 34 cananian 1.1.2.1 out.write_u1(CONSTANT_Float); 35 cananian 1.1.2.1 out.writeFloat(val); 36 cananian 1.1.2.1 } 37 cananian 1.1.2.1 38 cananian 1.1.2.1 /** Returns the floating-point value of this constant. */ 39 cananian 1.1.2.1 public float floatValue() { return val; } 40 cananian 1.1.2.1 /** Returns the value of this constant, wrapped as a 41 cananian 1.1.2.1 * <code>java.lang.Float</code>. */ 42 cananian 1.1.2.1 public Object value() { return new Float(val); } 43 cananian 1.1.2.1 44 cananian 1.1.2.1 /** Create a human-readable representation of this constant. */ 45 cananian 1.1.2.1 public String toString() { 46 cananian 1.1.2.1 return "CONSTANT_Float: "+floatValue(); 47 cananian 1.1.2.1 } 48 cananian 1.2 }