Mercurial > hg > truffle

comparison graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/SLTypes.java @ 7503:31da1716950f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Updated truffle-sl for the changed operation code generation.
author Christian Humer <christian.humer@gmail.com>
date Fri, 18 Jan 2013 13:29:14 +0100
parents
children 5e3d1a68664e
comparison
equal deleted inserted replaced
7502:6343a09b2ec1 7503:31da1716950f
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;
24
25 import java.math.*;
26
27 import com.oracle.truffle.api.codegen.*;
28
29 @TypeSystem({int.class, BigInteger.class, boolean.class, String.class})
30 public class SLTypes {
31
32 @TypeCheck
33 public boolean isInteger(Object value) {
34 return value instanceof Integer || (value instanceof BigInteger && ((BigInteger) value).bitLength() < Integer.SIZE);
35 }
36
37 @TypeCast
38 public int asInteger(Object value) {
39 assert isInteger(value);
40 if (value instanceof Integer) {
41 return (int) value;
42 } else {
43 int result = ((BigInteger) value).intValue();
44 assert BigInteger.valueOf(result).equals(value) : "Loosing precision";
45 return result;
46 }
47 }
48
49 @TypeCheck
50 public boolean isBigInteger(Object value) {
51 return value instanceof Integer || value instanceof BigInteger;
52 }
53
54 @TypeCast
55 public BigInteger asBigInteger(Object value) {
56 if (value instanceof Integer) {
57 return BigInteger.valueOf((int) value);
58 } else {
59 return (BigInteger) value;
60 }
61 }
62
63 @TypeCast
64 public BigInteger asBigInteger(int value) {
65 return BigInteger.valueOf(value);
66 }
67
68 @TypeCheck
69 public boolean isBigInteger(@SuppressWarnings("unused") int value) {
70 return true;
71 }
72 }
73