Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/SLTypes.java @ 12647:b038b643a3a4
restricted BootstrapGraal option to GRAALVM builds only
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 30 Oct 2013 21:49:04 +0100 |
parents | 3faec5ab0696 |
children | 71991b7a0f14 |
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1 /* |
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2 * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.truffle.sl; |
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24 |
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25 import java.math.*; |
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26 |
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27 import com.oracle.truffle.api.dsl.*; |
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28 |
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29 @TypeSystem({int.class, BigInteger.class, boolean.class, String.class}) |
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30 public class SLTypes { |
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31 |
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32 @TypeCheck |
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33 public boolean isInteger(Object value) { |
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34 return value instanceof Integer || (value instanceof BigInteger && ((BigInteger) value).bitLength() < Integer.SIZE); |
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35 } |
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36 |
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37 @TypeCast |
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38 public int asInteger(Object value) { |
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39 assert isInteger(value); |
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40 if (value instanceof Integer) { |
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41 return (int) value; |
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42 } else { |
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43 int result = ((BigInteger) value).intValue(); |
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44 assert BigInteger.valueOf(result).equals(value) : "Losing precision"; |
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45 return result; |
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46 } |
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47 } |
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48 |
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49 @ImplicitCast |
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50 public BigInteger castBigInteger(int integer) { |
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51 return BigInteger.valueOf(integer); |
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52 } |
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53 |
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54 } |