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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/node/CreateCastParser.java @ 13533:b466199f19e1

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Truffle-DSL: fixed bug when using @CreateCast with children arrays.
author Christian Humer <christian.humer@gmail.com>
date Tue, 07 Jan 2014 20:16:01 +0100
parents 25ecb47a6d0e
children bd28da642eea
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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.node;
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24
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25 import java.lang.annotation.*;
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26 import java.util.*;
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27
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28 import javax.lang.model.element.*;
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29 import javax.lang.model.type.*;
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31 import com.oracle.truffle.api.dsl.*;
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32 import com.oracle.truffle.dsl.processor.*;
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33 import com.oracle.truffle.dsl.processor.template.*;
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34
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35 public class CreateCastParser extends NodeMethodParser<CreateCastData> {
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36
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37 public CreateCastParser(ProcessorContext context, NodeData operation) {
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38 super(context, operation);
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39 }
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40
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41 @Override
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42 public Class<? extends Annotation> getAnnotationType() {
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43 return CreateCast.class;
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44 }
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45
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46 @Override
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47 public MethodSpec createSpecification(ExecutableElement method, AnnotationMirror mirror) {
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48 List<String> childNames = Utils.getAnnotationValueList(String.class, mirror, "value");
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49 NodeChildData foundChild = null;
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50 for (String childName : childNames) {
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51 foundChild = getNode().findChild(childName);
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52 if (foundChild != null) {
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53 break;
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54 }
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55 }
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56 TypeMirror baseType = getContext().getTruffleTypes().getNode();
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57 if (foundChild != null) {
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58 baseType = foundChild.getOriginalType();
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59 }
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60
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61 MethodSpec spec = new MethodSpec(new InheritsParameterSpec(getContext(), "child", baseType));
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62 addDefaultFieldMethodSpec(spec);
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63 ParameterSpec childSpec = new ParameterSpec("castedChild", baseType);
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64 childSpec.setSignature(true);
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65 spec.addRequired(childSpec);
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66 return spec;
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67 }
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68
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69 @Override
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70 public CreateCastData create(TemplateMethod method, boolean invalid) {
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71 AnnotationMirror mirror = method.getMarkerAnnotation();
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72 List<String> childNames = Utils.getAnnotationValueList(String.class, mirror, "value");
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73 CreateCastData cast = new CreateCastData(method, childNames);
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74 AnnotationValue value = Utils.getAnnotationValue(mirror, "value");
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75 TypeMirror type = null;
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76 if (childNames == null || childNames.isEmpty()) {
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77 cast.addError(value, "No value specified but required.");
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78 return cast;
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79 }
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80
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81 for (String childName : childNames) {
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82 NodeChildData child = getNode().findChild(childName);
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83 if (child == null) {
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84 // error
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85 cast.addError(value, "Specified child '%s' not found.", childName);
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86 continue;
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87 }
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88 if (type == null) {
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89 type = child.getNodeType();
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90 } else if (!Utils.typeEquals(type, child.getNodeType())) {
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91 cast.addError(value, "All child nodes for a cast must have the same node type.");
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92 continue;
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93 }
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94 }
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95 return cast;
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96 }
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97
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98 private static class InheritsParameterSpec extends ParameterSpec {
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99
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100 private final ProcessorContext context;
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101
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102 public InheritsParameterSpec(ProcessorContext context, String name, TypeMirror... allowedTypes) {
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103 super(name, Arrays.asList(allowedTypes));
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104 this.context = context;
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105 }
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106
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107 @Override
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108 public boolean matches(TypeMirror actualType) {
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109 boolean found = false;
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110 for (TypeMirror specType : getAllowedTypes()) {
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111 if (Utils.isAssignable(context, actualType, specType)) {
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112 found = true;
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113 break;
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114 }
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115 }
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116 return found;
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117 }
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118 }
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119 }