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annotate truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/model/GuardExpression.java @ 22157:dc83cc1f94f2

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Using fully qualified imports
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 16 Sep 2015 11:33:22 +0200
parents 9c8c0937da41
children
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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.dsl.processor.model;
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24
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25 import com.oracle.truffle.dsl.processor.expression.DSLExpression;
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26 import com.oracle.truffle.dsl.processor.expression.DSLExpression.Negate;
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27 import com.oracle.truffle.dsl.processor.java.ElementUtils;
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28 import java.util.Objects;
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29 import javax.lang.model.element.AnnotationMirror;
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30 import javax.lang.model.element.AnnotationValue;
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31 import javax.lang.model.element.Element;
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32
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33 public final class GuardExpression extends MessageContainer {
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34
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35 private final TemplateMethod source;
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36 private final DSLExpression expression;
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37
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38 public GuardExpression(TemplateMethod source, DSLExpression expression) {
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39 this.source = source;
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40 this.expression = expression;
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41 }
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42
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43 @Override
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44 public Element getMessageElement() {
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45 return source.getMessageElement();
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46 }
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47
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48 @Override
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49 public AnnotationMirror getMessageAnnotation() {
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50 return source.getMessageAnnotation();
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51 }
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52
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53 @Override
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54 public AnnotationValue getMessageAnnotationValue() {
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55 return ElementUtils.getAnnotationValue(getMessageAnnotation(), "guards");
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56 }
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57
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58 public DSLExpression getExpression() {
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59 return expression;
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60 }
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61
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62 public boolean equalsNegated(GuardExpression other) {
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63 boolean negated = false;
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64 DSLExpression thisExpression = expression;
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65 if (thisExpression instanceof Negate) {
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66 negated = true;
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67 thisExpression = ((Negate) thisExpression).getReceiver();
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68 }
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69
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70 boolean otherNegated = false;
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71 DSLExpression otherExpression = other.expression;
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72 if (otherExpression instanceof Negate) {
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73 otherNegated = true;
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74 otherExpression = ((Negate) otherExpression).getReceiver();
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75 }
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76 return Objects.equals(thisExpression, otherExpression) && negated != otherNegated;
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77 }
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78
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79 public boolean implies(GuardExpression other) {
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80 if (Objects.equals(expression, other.expression)) {
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81 return true;
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82 }
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83 return false;
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84 }
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85
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86 }