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comparison graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/ops/MulOp.java @ 7292:213c1297a814

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Simple Language: A simple dynamic programming language to demonstrate Truffle features
author Christian Wimmer <christian.wimmer@oracle.com>
date Fri, 21 Dec 2012 10:45:37 -0800
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7291:a748e4d44694 7292:213c1297a814
1 /*
2 * Copyright (c) 2012, 2012, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.oracle.truffle.sl.ops;
24
25 import java.math.*;
26
27 import com.oracle.truffle.api.codegen.*;
28 import com.oracle.truffle.api.intrinsics.*;
29 import com.oracle.truffle.sl.types.*;
30
31 @Operation(typeSystem = Types.class, values = {"left", "right"})
32 public class MulOp {
33
34 @Specialization
35 @SpecializationThrows(javaClass = ArithmeticException.class, transitionTo = "doBigInteger")
36 public int doInteger(int left, int right) {
37 return ExactMath.multiplyExact(left, right);
38 }
39
40 @Specialization
41 public BigInteger doBigInteger(BigInteger left, BigInteger right) {
42 return left.multiply(right);
43 }
44
45 @Generic
46 public Object doGeneric(Object left, Object right) {
47 throw new RuntimeException("multiplication not defined for types " + left.getClass().getSimpleName() + ", " + right.getClass().getSimpleName());
48 }
49 }