1 /*
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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
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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.
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
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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 
31 /**
32  * WARNING: The contents of this source file are not part of any
33  * supported API.  Code that depends on them does so at its own risk:
34  * they are subject to change or removal without notice.
35  */
36 public
37 class MultiplyExpression extends BinaryArithmeticExpression {
38     /**
39      * constructor
40      */
MultiplyExpression(long where, Expression left, Expression right)41     public MultiplyExpression(long where, Expression left, Expression right) {
42         super(MUL, where, left, right);
43     }
44 
45     /**
46      * Evaluate
47      */
eval(int a, int b)48     Expression eval(int a, int b) {
49         return new IntExpression(where, a * b);
50     }
eval(long a, long b)51     Expression eval(long a, long b) {
52         return new LongExpression(where, a * b);
53     }
eval(float a, float b)54     Expression eval(float a, float b) {
55         return new FloatExpression(where, a * b);
56     }
eval(double a, double b)57     Expression eval(double a, double b) {
58         return new DoubleExpression(where, a * b);
59     }
60 
61     /**
62      * Simplify
63      */
simplify()64     Expression simplify() {
65         if (left.equals(1)) {
66             return right;
67         }
68         if (right.equals(1)) {
69             return left;
70         }
71         return this;
72     }
73 
74     /**
75      * Code
76      */
codeOperation(Environment env, Context ctx, Assembler asm)77     void codeOperation(Environment env, Context ctx, Assembler asm) {
78         asm.add(where, opc_imul + type.getTypeCodeOffset());
79     }
80 }
81