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annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/SLTypes.java @ 13761:7c418666c6c9

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Refactoring and cleanup of Simple Language (more to come soon)
author Christian Wimmer <christian.wimmer@oracle.com>
date Fri, 24 Jan 2014 18:16:24 -0800
parents graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/SLTypes.java@71991b7a0f14
children b16ec83edc73
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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.nodes;
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25 import java.math.*;
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26
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79041ab43660 Truffle-DSL: API-change: Renamed truffle.api.codegen to truffle.api.dsl for all projects and packages.
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27 import com.oracle.truffle.api.dsl.*;
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28 import com.oracle.truffle.sl.runtime.*;
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30 @TypeSystem({long.class, BigInteger.class, boolean.class, String.class, SLFunction.class, SLNull.class, Object[].class})
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31 public class SLTypes {
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32
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33 @TypeCheck
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34 public boolean isSLNull(Object value) {
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35 return SLNull.INSTANCE == value;
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36 }
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37
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38 @TypeCast
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39 public SLNull asSLNull(Object value) {
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40 assert isSLNull(value);
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41 return SLNull.INSTANCE;
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42 }
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43
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44 @ImplicitCast
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45 public BigInteger castBigInteger(long value) {
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46 return BigInteger.valueOf(value);
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47 }
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48 }