Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/multicatch/model/ModelChecker.java
test/tools/javac/multicatch/model/ModelChecker.java
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| 1 /* | |
| 2 * Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test | |
| 26 * @bug 6993963 7025809 | |
| 27 * @summary Project Coin: Use precise exception analysis for effectively final catch parameters | |
| 28 * @library /tools/javac/lib | |
| 29 * @build JavacTestingAbstractProcessor ModelChecker | |
| 30 * @compile -processor ModelChecker Model01.java | |
| 31 */ | |
| 32 | |
| 33 import com.sun.source.tree.CatchTree; | |
| 34 import com.sun.source.util.TreePathScanner; | |
| 35 import com.sun.source.util.Trees; | |
| 36 import com.sun.source.util.TreePath; | |
| 37 | |
| 38 import java.util.Set; | |
| 39 import javax.annotation.processing.RoundEnvironment; | |
| 40 import javax.annotation.processing.SupportedAnnotationTypes; | |
| 41 import javax.lang.model.element.Element; | |
| 42 import javax.lang.model.element.ElementKind; | |
| 43 import javax.lang.model.element.TypeElement; | |
| 44 import javax.lang.model.type.TypeMirror; | |
| 45 import javax.lang.model.type.TypeKind; | |
| 46 import javax.lang.model.type.UnionType; | |
| 47 import javax.lang.model.type.UnknownTypeException; | |
| 48 import javax.lang.model.util.SimpleTypeVisitor6; | |
| 49 import javax.lang.model.util.SimpleTypeVisitor7; | |
| 50 | |
| 51 @SupportedAnnotationTypes("Check") | |
| 52 public class ModelChecker extends JavacTestingAbstractProcessor { | |
| 53 | |
| 54 @Override | |
| 55 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { | |
| 56 if (roundEnv.processingOver()) | |
| 57 return true; | |
| 58 | |
| 59 Trees trees = Trees.instance(processingEnv); | |
| 60 | |
| 61 TypeElement testAnno = elements.getTypeElement("Check"); | |
| 62 for (Element elem: roundEnv.getElementsAnnotatedWith(testAnno)) { | |
| 63 TreePath p = trees.getPath(elem); | |
| 64 new MulticatchParamTester(trees).scan(p, null); | |
| 65 } | |
| 66 return true; | |
| 67 } | |
| 68 | |
| 69 class MulticatchParamTester extends TreePathScanner<Void, Void> { | |
| 70 Trees trees; | |
| 71 | |
| 72 public MulticatchParamTester(Trees trees) { | |
| 73 super(); | |
| 74 this.trees = trees; | |
| 75 } | |
| 76 | |
| 77 @Override | |
| 78 public Void visitCatch(CatchTree node, Void p) { | |
| 79 TreePath param = new TreePath(getCurrentPath(), node.getParameter()); | |
| 80 Element ex = trees.getElement(param); | |
| 81 validateUnionTypeInfo(ex); | |
| 82 if (ex.getSimpleName().contentEquals("ex")) { | |
| 83 assertTrue(ex.getKind() == ElementKind.EXCEPTION_PARAMETER, "Expected EXCEPTION_PARAMETER - found " + ex.getKind()); | |
| 84 for (Element e : types.asElement(trees.getLub(node)).getEnclosedElements()) { | |
| 85 Member m = e.getAnnotation(Member.class); | |
| 86 if (m != null) { | |
| 87 assertTrue(e.getKind() == m.value(), "Expected " + m.value() + " - found " + e.getKind()); | |
| 88 } | |
| 89 } | |
| 90 assertTrue(assertionCount == 9, "Expected 9 assertions - found " + assertionCount); | |
| 91 } | |
| 92 return super.visitCatch(node, p); | |
| 93 } | |
| 94 } | |
| 95 | |
| 96 private void validateUnionTypeInfo(Element ex) { | |
| 97 UnionTypeInfo ut = ex.getAnnotation(UnionTypeInfo.class); | |
| 98 assertTrue(ut != null, "UnionType annotation must be present"); | |
| 99 | |
| 100 TypeMirror expectedUnionType = ex.asType(); | |
| 101 assertTrue(expectedUnionType.getKind() == TypeKind.UNION, "UNION kind expected"); | |
| 102 | |
| 103 try { | |
| 104 new SimpleTypeVisitor6<Void, Void>(){}.visit(expectedUnionType); | |
| 105 throw new RuntimeException("Expected UnknownTypeException not thrown."); | |
| 106 } catch (UnknownTypeException ute) { | |
| 107 ; // Expected | |
| 108 } | |
| 109 | |
| 110 UnionType unionType = new SimpleTypeVisitor<UnionType, Void>(){ | |
| 111 @Override | |
| 112 protected UnionType defaultAction(TypeMirror e, Void p) {return null;} | |
| 113 | |
| 114 @Override | |
| 115 public UnionType visitUnion(UnionType t, Void p) {return t;} | |
| 116 }.visit(expectedUnionType); | |
| 117 assertTrue(unionType != null, "Must get a non-null union type."); | |
| 118 | |
| 119 assertTrue(ut.value().length == unionType.getAlternatives().size(), "Cardinalities do not match"); | |
| 120 | |
| 121 String[] typeNames = ut.value(); | |
| 122 for(int i = 0; i < typeNames.length; i++) { | |
| 123 TypeMirror typeFromAnnotation = nameToType(typeNames[i]); | |
| 124 assertTrue(types.isSameType(typeFromAnnotation, unionType.getAlternatives().get(i)), | |
| 125 "Types were not equal."); | |
| 126 } | |
| 127 } | |
| 128 | |
| 129 private TypeMirror nameToType(String name) { | |
| 130 return elements.getTypeElement(name).asType(); | |
| 131 } | |
| 132 | |
| 133 private static void assertTrue(boolean cond, String msg) { | |
| 134 assertionCount++; | |
| 135 if (!cond) | |
| 136 throw new AssertionError(msg); | |
| 137 } | |
| 138 | |
| 139 static int assertionCount = 0; | |
| 140 } |
