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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/utilities/UnionAssumption.java @ 20131:4b12d5355811
Truffle: do not use iterators for visitors.
author | Christian Humer <christian.humer@gmail.com> |
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date | Thu, 02 Apr 2015 01:27:27 +0200 |
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New assumption utilities.
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1 /* |
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2 * Copyright (c) 2013, 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. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 package com.oracle.truffle.api.utilities; |
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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.nodes.*; |
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29 |
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30 /** |
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31 * An assumption that combines two other assumptions. A check on this assumption checks both of the |
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32 * child assumptions. |
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33 */ |
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34 public class UnionAssumption implements Assumption { |
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35 |
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36 private final String name; |
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37 private final Assumption first; |
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38 private final Assumption second; |
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39 |
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40 public UnionAssumption(String name, Assumption first, Assumption second) { |
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41 this.name = name; |
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42 this.first = first; |
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43 this.second = second; |
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44 } |
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45 |
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46 public UnionAssumption(Assumption first, Assumption second) { |
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47 this(null, first, second); |
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48 } |
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49 |
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50 @Override |
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51 public void check() throws InvalidAssumptionException { |
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52 first.check(); |
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53 second.check(); |
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54 } |
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55 |
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56 @Override |
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57 public void invalidate() { |
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58 first.invalidate(); |
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59 second.invalidate(); |
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60 } |
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61 |
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62 @Override |
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63 public String getName() { |
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64 return name; |
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65 } |
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66 |
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67 @Override |
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68 public boolean isValid() { |
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69 return first.isValid() && second.isValid(); |
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70 } |
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71 |
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72 } |