1 /* 2 * Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.tools.tree; 27 28 import sun.tools.java.*; 29 import sun.tools.asm.Assembler; 30 import java.io.PrintStream; 31 32 /** 33 * WARNING: The contents of this source file are not part of any 34 * supported API. Code that depends on them does so at its own risk: 35 * they are subject to change or removal without notice. 36 */ 37 public 38 class DoubleExpression extends ConstantExpression { 39 double value; 40 41 /** 42 * Constructor 43 */ DoubleExpression(long where, double value)44 public DoubleExpression(long where, double value) { 45 super(DOUBLEVAL, where, Type.tDouble); 46 this.value = value; 47 } 48 49 /** 50 * Get the value 51 */ getValue()52 public Object getValue() { 53 return new Double(value); 54 } 55 56 /** 57 * Check if the expression is equal to a value 58 */ equals(int i)59 public boolean equals(int i) { 60 return value == i; 61 } 62 63 /** 64 * Check if the expression is equal to its default static value 65 */ equalsDefault()66 public boolean equalsDefault() { 67 // don't allow -0.0 68 return (Double.doubleToLongBits(value) == 0); 69 } 70 71 /** 72 * Code 73 */ codeValue(Environment env, Context ctx, Assembler asm)74 public void codeValue(Environment env, Context ctx, Assembler asm) { 75 asm.add(where, opc_ldc2_w, new Double(value)); 76 } 77 78 /** 79 * Print 80 */ print(PrintStream out)81 public void print(PrintStream out) { 82 out.print(value + "D"); 83 } 84 } 85