Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/expression/SLAddNode.java @ 13821:b16ec83edc73
Documentation and more refactoring of Simple Language
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Wed, 29 Jan 2014 20:45:43 -0800 |
parents | 7c418666c6c9 |
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1 /* |
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2 * Copyright (c) 2012, 2014, 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.nodes.expression; |
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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.*; |
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28 import com.oracle.truffle.api.dsl.*; |
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29 import com.oracle.truffle.api.nodes.*; |
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30 import com.oracle.truffle.sl.nodes.*; |
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31 |
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32 @NodeInfo(shortName = "+") |
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33 public abstract class SLAddNode extends SLBinaryNode { |
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34 |
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35 @Specialization(rewriteOn = ArithmeticException.class) |
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36 protected long add(long left, long right) { |
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37 return ExactMath.addExact(left, right); |
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38 } |
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39 |
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40 @Specialization |
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41 protected BigInteger add(BigInteger left, BigInteger right) { |
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42 return left.add(right); |
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43 } |
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44 |
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45 @Specialization |
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46 protected String add(String left, String right) { |
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47 return left + right; |
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48 } |
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49 |
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50 @Specialization(guards = "isString") |
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51 protected String add(Object left, Object right) { |
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52 return left.toString() + right.toString(); |
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53 } |
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54 |
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55 protected boolean isString(Object a, Object b) { |
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56 return a instanceof String || b instanceof String; |
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57 } |
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58 } |