1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
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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.
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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
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19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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