1/*
2 * Copyright (c) 2006, 2017, 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 6449798 6399404 8173776 8163989
27 * @summary Test basic workings of PackageElement
28 * @author  Joseph D. Darcy
29 * @library /tools/javac/lib
30 * @modules java.compiler
31 *          jdk.compiler
32 * @build   JavacTestingAbstractProcessor TestPackageElement
33 * @compile -processor TestPackageElement -proc:only             TestPackageElement.java
34 * @compile -processor TestPackageElement -proc:only --release 8 TestPackageElement.java
35 */
36
37import java.util.Objects;
38import java.util.Set;
39import javax.annotation.processing.*;
40import javax.lang.model.SourceVersion;
41import static javax.lang.model.SourceVersion.*;
42import javax.lang.model.element.*;
43import javax.lang.model.util.*;
44import static javax.lang.model.util.ElementFilter.*;
45import static javax.tools.Diagnostic.Kind.*;
46import static javax.tools.StandardLocation.*;
47
48/**
49 * Test basic workings of PackageElement.
50 */
51public class TestPackageElement extends JavacTestingAbstractProcessor {
52    public boolean process(Set<? extends TypeElement> annotations,
53                           RoundEnvironment roundEnv) {
54        if (!roundEnv.processingOver()) {
55            PackageElement unnamedPkg = eltUtils.getPackageElement("");
56
57            testNames(unnamedPkg, "", "");
58
59            // The next line tests an implementation detail upon which
60            // some diagnostics depend.
61            if (!unnamedPkg.toString().equals("unnamed package"))
62                throw new RuntimeException(
63                                "toString on unnamed package: " + unnamedPkg);
64
65            if (!unnamedPkg.isUnnamed())
66                throw new RuntimeException("The isUnnamed method on the unnamed package returned false!");
67
68            PackageElement javaLang = eltUtils.getPackageElement("java.lang");
69            if (javaLang.isUnnamed())
70                throw new RuntimeException("Package java.lang is unnamed!");
71
72            testNames(javaLang, "java.lang", "lang");
73
74            testEnclosingElement(javaLang);
75        }
76        return true;
77    }
78
79    void testNames(PackageElement pkg, String expectedQualified, String expectedSimple) {
80        String tmp = pkg.getQualifiedName().toString();
81        if (!tmp.equals(expectedQualified))
82            throw new RuntimeException("Unexpected qualifed name ``" + tmp + "''.");
83
84        tmp = pkg.getSimpleName().toString();
85        if (!tmp.equals(expectedSimple))
86            throw new RuntimeException("Unexpected simple name ``" + tmp + "''.");
87    }
88
89    void testEnclosingElement(PackageElement javaLang) {
90        SourceVersion version = processingEnv.getSourceVersion();
91        Element enclosing = javaLang.getEnclosingElement();
92        Element expectedEnclosing =
93            (version.compareTo(RELEASE_9) < 0) ?  // No modules
94            null :
95            eltUtils.getModuleElement("java.base");
96
97        if (!Objects.equals(enclosing, expectedEnclosing))
98            throw new RuntimeException("Unexpected enclosing element under source version " +
99                                       version);
100    }
101}
102