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annotate graal/com.oracle.jvmci.options.processor/src/com/oracle/jvmci/options/processor/OptionProcessor.java @ 21554:b1530a6cce8c

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renamed com.oracle.graal.[debug|options|hotspotvmconfig]* modules to com.oracle.jvmci.[debug|options|hotspotvmconfig]* modules (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 23:21:15 +0200
parents graal/com.oracle.graal.options.processor/src/com/oracle/graal/options/processor/OptionProcessor.java@71e05c3a1e12
children d563baeca9df
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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.
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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.jvmci.options.processor;
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24
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25 import java.io.*;
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26 import java.util.*;
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27
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28 import javax.annotation.processing.*;
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29 import javax.lang.model.*;
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30 import javax.lang.model.element.*;
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31 import javax.lang.model.type.*;
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32 import javax.lang.model.util.*;
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33 import javax.tools.Diagnostic.Kind;
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34 import javax.tools.*;
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35
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36 import com.oracle.jvmci.options.*;
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37
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38
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39 /**
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40 * Processes static fields annotated with {@link Option}. An {@link Options} service is generated
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41 * for each top level class containing at least one such field. These service objects can be
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42 * retrieved as follows:
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43 *
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44 * <pre>
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45 * ServiceLoader&lt;Options&gt; sl = ServiceLoader.load(Options.class);
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46 * for (Options opts : sl) {
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47 * for (OptionDescriptor desc : sl) {
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48 * // use desc
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49 * }
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50 * }
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51 * </pre>
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52 */
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53 @SupportedAnnotationTypes({"com.oracle.jvmci.options.Option"})
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54 public class OptionProcessor extends AbstractProcessor {
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55
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56 @Override
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57 public SourceVersion getSupportedSourceVersion() {
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58 return SourceVersion.latest();
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59 }
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60
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61 private final Set<Element> processed = new HashSet<>();
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62
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63 private void processElement(Element element, OptionsInfo info) {
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64
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65 if (!element.getModifiers().contains(Modifier.STATIC)) {
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66 processingEnv.getMessager().printMessage(Kind.ERROR, "Option field must be static", element);
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67 return;
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68 }
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69
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70 Option annotation = element.getAnnotation(Option.class);
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71 assert annotation != null;
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72 assert element instanceof VariableElement;
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73 assert element.getKind() == ElementKind.FIELD;
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74 VariableElement field = (VariableElement) element;
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75 String fieldName = field.getSimpleName().toString();
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76
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77 Elements elements = processingEnv.getElementUtils();
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78 Types types = processingEnv.getTypeUtils();
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79
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80 TypeMirror fieldType = field.asType();
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81 if (fieldType.getKind() != TypeKind.DECLARED) {
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82 processingEnv.getMessager().printMessage(Kind.ERROR, "Option field must be of type " + OptionValue.class.getName(), element);
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83 return;
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84 }
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85 DeclaredType declaredFieldType = (DeclaredType) fieldType;
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86
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87 TypeMirror optionValueType = elements.getTypeElement(OptionValue.class.getName()).asType();
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88 if (!types.isSubtype(fieldType, types.erasure(optionValueType))) {
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89 String msg = String.format("Option field type %s is not a subclass of %s", fieldType, optionValueType);
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90 processingEnv.getMessager().printMessage(Kind.ERROR, msg, element);
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91 return;
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92 }
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93
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94 if (!field.getModifiers().contains(Modifier.STATIC)) {
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95 processingEnv.getMessager().printMessage(Kind.ERROR, "Option field must be static", element);
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96 return;
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97 }
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98
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99 String help = annotation.help();
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100 if (help.length() != 0) {
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101 char firstChar = help.charAt(0);
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102 if (!Character.isUpperCase(firstChar)) {
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103 processingEnv.getMessager().printMessage(Kind.ERROR, "Option help text must start with upper case letter", element);
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104 return;
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105 }
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106 }
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107
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108 String optionName = annotation.name();
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109 if (optionName.equals("")) {
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110 optionName = fieldName;
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111 }
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112
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113 DeclaredType declaredOptionValueType = declaredFieldType;
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114 while (!types.isSameType(types.erasure(declaredOptionValueType), types.erasure(optionValueType))) {
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115 List<? extends TypeMirror> directSupertypes = types.directSupertypes(declaredFieldType);
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116 assert !directSupertypes.isEmpty();
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117 declaredOptionValueType = (DeclaredType) directSupertypes.get(0);
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118 }
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119
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120 assert !declaredOptionValueType.getTypeArguments().isEmpty();
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121 String optionType = declaredOptionValueType.getTypeArguments().get(0).toString();
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122 if (optionType.startsWith("java.lang.")) {
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123 optionType = optionType.substring("java.lang.".length());
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124 }
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125
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126 Element enclosing = element.getEnclosingElement();
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127 String declaringClass = "";
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128 String separator = "";
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129 Set<Element> originatingElementsList = info.originatingElements;
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130 originatingElementsList.add(field);
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131 while (enclosing != null) {
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132 if (enclosing.getKind() == ElementKind.CLASS || enclosing.getKind() == ElementKind.INTERFACE) {
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133 if (enclosing.getModifiers().contains(Modifier.PRIVATE)) {
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
134 String msg = String.format("Option field cannot be declared in a private %s %s", enclosing.getKind().name().toLowerCase(), enclosing);
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
135 processingEnv.getMessager().printMessage(Kind.ERROR, msg, element);
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
136 return;
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
137 }
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
138 originatingElementsList.add(enclosing);
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
139 declaringClass = enclosing.getSimpleName() + separator + declaringClass;
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
140 separator = ".";
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
141 } else {
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
142 assert enclosing.getKind() == ElementKind.PACKAGE;
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
143 }
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
144 enclosing = enclosing.getEnclosingElement();
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
145 }
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
146
11378
7e297d001c30 option annotation processor ensures that a non-empty help message starts with a capital letter
Doug Simon <doug.simon@oracle.com>
parents: 11363
diff changeset
147 info.options.add(new OptionInfo(optionName, help, optionType, declaringClass, field));
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
148 }
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
149
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
150 private void createFiles(OptionsInfo info) {
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
151 String pkg = ((PackageElement) info.topDeclaringType.getEnclosingElement()).getQualifiedName().toString();
9986
4f542ceb5fed added VerifyHotSpotOptionsPhase to ensure that global state is not initialized from options prior to command line parsing
Doug Simon <doug.simon@oracle.com>
parents: 9937
diff changeset
152 Name topDeclaringClass = info.topDeclaringType.getSimpleName();
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
153
9986
4f542ceb5fed added VerifyHotSpotOptionsPhase to ensure that global state is not initialized from options prior to command line parsing
Doug Simon <doug.simon@oracle.com>
parents: 9937
diff changeset
154 String optionsClassName = topDeclaringClass + "_" + Options.class.getSimpleName();
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
155 Element[] originatingElements = info.originatingElements.toArray(new Element[info.originatingElements.size()]);
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
156
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
157 Filer filer = processingEnv.getFiler();
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
158 try (PrintWriter out = createSourceFile(pkg, optionsClassName, filer, originatingElements)) {
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
159
9901
4fcd38b13eb1 disabled emitting and checking of copyright header in files generated by OptionProcessor
Doug Simon <doug.simon@oracle.com>
parents: 9865
diff changeset
160 out.println("// CheckStyle: stop header check");
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
161 out.println("// GENERATED CONTENT - DO NOT EDIT");
9986
4f542ceb5fed added VerifyHotSpotOptionsPhase to ensure that global state is not initialized from options prior to command line parsing
Doug Simon <doug.simon@oracle.com>
parents: 9937
diff changeset
162 out.println("// Source: " + topDeclaringClass + ".java");
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
163 out.println("package " + pkg + ";");
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
164 out.println("");
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
165 out.println("import java.util.*;");
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
166 out.println("import " + Options.class.getPackage().getName() + ".*;");
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
167 out.println("");
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
168 out.println("public class " + optionsClassName + " implements " + Options.class.getSimpleName() + " {");
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
169 out.println(" @Override");
9986
4f542ceb5fed added VerifyHotSpotOptionsPhase to ensure that global state is not initialized from options prior to command line parsing
Doug Simon <doug.simon@oracle.com>
parents: 9937
diff changeset
170 String desc = OptionDescriptor.class.getSimpleName();
4f542ceb5fed added VerifyHotSpotOptionsPhase to ensure that global state is not initialized from options prior to command line parsing
Doug Simon <doug.simon@oracle.com>
parents: 9937
diff changeset
171 out.println(" public Iterator<" + desc + "> iterator() {");
11363
b332bfd012a4 added suppression filter so that long help messages for Options can be supported without triggering Checkstyle errors in generated sources
Doug Simon <doug.simon@oracle.com>
parents: 9986
diff changeset
172 out.println(" // CheckStyle: stop line length check");
9986
4f542ceb5fed added VerifyHotSpotOptionsPhase to ensure that global state is not initialized from options prior to command line parsing
Doug Simon <doug.simon@oracle.com>
parents: 9937
diff changeset
173 out.println(" List<" + desc + "> options = Arrays.asList(");
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
174
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
175 boolean needPrivateFieldAccessor = false;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
176 int i = 0;
13944
911e540a2116 Sort options alphabetically so that diffs do not show false positives
Christian Wimmer <christian.wimmer@oracle.com>
parents: 11378
diff changeset
177 Collections.sort(info.options);
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
178 for (OptionInfo option : info.options) {
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
179 String optionValue;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
180 if (option.field.getModifiers().contains(Modifier.PRIVATE)) {
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
181 needPrivateFieldAccessor = true;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
182 optionValue = "field(" + option.declaringClass + ".class, \"" + option.field.getSimpleName() + "\")";
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
183 } else {
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
184 optionValue = option.declaringClass + "." + option.field.getSimpleName();
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
185 }
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
186 String name = option.name;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
187 String type = option.type;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
188 String help = option.help;
9986
4f542ceb5fed added VerifyHotSpotOptionsPhase to ensure that global state is not initialized from options prior to command line parsing
Doug Simon <doug.simon@oracle.com>
parents: 9937
diff changeset
189 String declaringClass = option.declaringClass;
4f542ceb5fed added VerifyHotSpotOptionsPhase to ensure that global state is not initialized from options prior to command line parsing
Doug Simon <doug.simon@oracle.com>
parents: 9937
diff changeset
190 Name fieldName = option.field.getSimpleName();
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
191 String comma = i == info.options.size() - 1 ? "" : ",";
14596
2e35f6eb8684 Fixed option processor to always produce unix line feeds which led to checkstyle warnings on windows.
Christian Humer <christian.humer@gmail.com>
parents: 14157
diff changeset
192 out.printf(" new %s(\"%s\", %s.class, \"%s\", %s.class, \"%s\", %s)%s\n", desc, name, type, help, declaringClass, fieldName, optionValue, comma);
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
193 i++;
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
194 }
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
195 out.println(" );");
11363
b332bfd012a4 added suppression filter so that long help messages for Options can be supported without triggering Checkstyle errors in generated sources
Doug Simon <doug.simon@oracle.com>
parents: 9986
diff changeset
196 out.println(" // CheckStyle: resume line length check");
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
197 out.println(" return options.iterator();");
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
198 out.println(" }");
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
199 if (needPrivateFieldAccessor) {
15043
33eee38d70a3 Fix raw type references in OptionProcessor.
Josef Eisl <josef.eisl@jku.at>
parents: 14763
diff changeset
200 out.println(" private static " + OptionValue.class.getSimpleName() + "<?> field(Class<?> declaringClass, String fieldName) {");
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
201 out.println(" try {");
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
202 out.println(" java.lang.reflect.Field field = declaringClass.getDeclaredField(fieldName);");
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
203 out.println(" field.setAccessible(true);");
15043
33eee38d70a3 Fix raw type references in OptionProcessor.
Josef Eisl <josef.eisl@jku.at>
parents: 14763
diff changeset
204 out.println(" return (" + OptionValue.class.getSimpleName() + "<?>) field.get(null);");
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
205 out.println(" } catch (Exception e) {");
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
206 out.println(" throw (InternalError) new InternalError().initCause(e);");
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
207 out.println(" }");
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
208 out.println(" }");
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
209 }
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
210 out.println("}");
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
211 }
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
212
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
213 try {
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
214 createProviderFile(pkg, optionsClassName, originatingElements);
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
215 } catch (IOException e) {
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
216 processingEnv.getMessager().printMessage(Kind.ERROR, e.getMessage(), info.topDeclaringType);
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
217 }
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
218 }
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
219
9865
9006bc30a951 add all enclosing elements of an annotated field as originating elements
Doug Simon <doug.simon@oracle.com>
parents: 9849
diff changeset
220 private void createProviderFile(String pkg, String providerClassName, Element... originatingElements) throws IOException {
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
221 String filename = "META-INF/providers/" + pkg + "." + providerClassName;
9865
9006bc30a951 add all enclosing elements of an annotated field as originating elements
Doug Simon <doug.simon@oracle.com>
parents: 9849
diff changeset
222 FileObject file = processingEnv.getFiler().createResource(StandardLocation.CLASS_OUTPUT, "", filename, originatingElements);
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
223 PrintWriter writer = new PrintWriter(new OutputStreamWriter(file.openOutputStream(), "UTF-8"));
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
224 writer.println(Options.class.getName());
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
225 writer.close();
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
226 }
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
227
9865
9006bc30a951 add all enclosing elements of an annotated field as originating elements
Doug Simon <doug.simon@oracle.com>
parents: 9849
diff changeset
228 protected PrintWriter createSourceFile(String pkg, String relativeName, Filer filer, Element... originatingElements) {
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
229 try {
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
230 // Ensure Unix line endings to comply with Graal code style guide checked by Checkstyle
9865
9006bc30a951 add all enclosing elements of an annotated field as originating elements
Doug Simon <doug.simon@oracle.com>
parents: 9849
diff changeset
231 JavaFileObject sourceFile = filer.createSourceFile(pkg + "." + relativeName, originatingElements);
9849
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
232 return new PrintWriter(sourceFile.openWriter()) {
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
233
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
234 @Override
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
235 public void println() {
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
236 print("\n");
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
237 }
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
238 };
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
239 } catch (IOException e) {
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
240 throw new RuntimeException(e);
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
241 }
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
242 }
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
243
13944
911e540a2116 Sort options alphabetically so that diffs do not show false positives
Christian Wimmer <christian.wimmer@oracle.com>
parents: 11378
diff changeset
244 static class OptionInfo implements Comparable<OptionInfo> {
9919
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
245
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
246 final String name;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
247 final String help;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
248 final String type;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
249 final String declaringClass;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
250 final VariableElement field;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
251
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
252 public OptionInfo(String name, String help, String type, String declaringClass, VariableElement field) {
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
253 this.name = name;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
254 this.help = help;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
255 this.type = type;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
256 this.declaringClass = declaringClass;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
257 this.field = field;
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
258 }
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
259
af909f4b80a9 options are grouped per top level class/interface when accessed via the service mechanism
Doug Simon <doug.simon@oracle.com>
parents: 9901
diff changeset
260 @Override
13944
911e540a2116 Sort options alphabetically so that diffs do not show false positives
Christian Wimmer <christian.wimmer@oracle.com>
parents: 11378
diff changeset
261 public int compareTo(OptionInfo other) {
911e540a2116 Sort options alphabetically so that diffs do not show false positives
Christian Wimmer <christian.wimmer@oracle.com>
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262 return name.compareTo(other.name);
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263 }
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264
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265 @Override
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266 public String toString() {
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267 return declaringClass + "." + field;
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268 }
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269 }
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270
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271 static class OptionsInfo {
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272
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273 final Element topDeclaringType;
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274 final List<OptionInfo> options = new ArrayList<>();
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275 final Set<Element> originatingElements = new HashSet<>();
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276
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277 public OptionsInfo(Element topDeclaringType) {
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278 this.topDeclaringType = topDeclaringType;
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279 }
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280 }
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281
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282 private static Element topDeclaringType(Element element) {
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283 Element enclosing = element.getEnclosingElement();
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Doug Simon <doug.simon@oracle.com>
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284 if (enclosing == null || enclosing.getKind() == ElementKind.PACKAGE) {
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285 assert element.getKind() == ElementKind.CLASS || element.getKind() == ElementKind.INTERFACE;
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286 return element;
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287 }
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288 return topDeclaringType(enclosing);
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289 }
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290
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Doug Simon <doug.simon@oracle.com>
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291 @Override
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292 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
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293 if (roundEnv.processingOver()) {
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294 return true;
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295 }
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296
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297 Map<Element, OptionsInfo> map = new HashMap<>();
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298 for (Element element : roundEnv.getElementsAnnotatedWith(Option.class)) {
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299 if (!processed.contains(element)) {
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300 processed.add(element);
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301 Element topDeclaringType = topDeclaringType(element);
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302 OptionsInfo options = map.get(topDeclaringType);
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303 if (options == null) {
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304 options = new OptionsInfo(topDeclaringType);
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305 map.put(topDeclaringType, options);
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306 }
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Doug Simon <doug.simon@oracle.com>
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307 processElement(element, options);
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Doug Simon <doug.simon@oracle.com>
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308 }
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309 }
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310
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311 boolean ok = true;
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312 Map<String, OptionInfo> uniqueness = new HashMap<>();
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313 for (OptionsInfo info : map.values()) {
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314 for (OptionInfo option : info.options) {
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315 OptionInfo conflict = uniqueness.put(option.name, option);
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316 if (conflict != null) {
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317 processingEnv.getMessager().printMessage(Kind.ERROR, "Duplicate option names for " + option + " and " + conflict, option.field);
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318 ok = false;
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319 }
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320 }
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parents: 9901
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321 }
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322
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Doug Simon <doug.simon@oracle.com>
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323 if (ok) {
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Doug Simon <doug.simon@oracle.com>
parents: 9901
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324 for (OptionsInfo info : map.values()) {
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Doug Simon <doug.simon@oracle.com>
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325 createFiles(info);
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Doug Simon <doug.simon@oracle.com>
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326 }
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Doug Simon <doug.simon@oracle.com>
parents:
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327 }
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Doug Simon <doug.simon@oracle.com>
parents:
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328
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Doug Simon <doug.simon@oracle.com>
parents:
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329 return true;
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Doug Simon <doug.simon@oracle.com>
parents:
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330 }
e876c2a6954f extensible option system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents:
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331 }