mirror of
https://github.com/openjdk/jdk.git
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394 lines
14 KiB
Java
394 lines
14 KiB
Java
/*
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* Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @summary Check behavior of var when the inferred type is inaccessible
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* @library /tools/lib
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* @modules java.logging
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* java.sql
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* jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.main
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* jdk.compiler/com.sun.tools.javac.util
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* @build toolbox.ToolBox toolbox.JavacTask
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* @run junit VarAccessibility
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*/
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.util.List;
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import java.util.Objects;
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import org.junit.jupiter.api.Test;
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import toolbox.JavacTask;
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import toolbox.JavaTask;
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import toolbox.Task;
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import toolbox.ToolBox;
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public class VarAccessibility {
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private static final ToolBox tb = new ToolBox();
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@Test
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public void testInaccessibleInferredTypeLocalVariable() throws Exception {
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Path base = Paths.get(".");
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Path src = base.resolve("src");
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Path classes = base.resolve("classes");
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tb.writeJavaFiles(src,
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"""
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package p1;
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public class API {
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public static PackagePrivate get() {
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return new PackagePrivate();
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}
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}
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""",
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"""
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package p1;
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class PackagePrivate {
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public String toString() {
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return "pass";
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}
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}
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""",
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"""
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package p2;
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import p1.API;
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public class Test {
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public static void main(String... args) {
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var v = API.get();
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System.out.println(v);
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}
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}
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""");
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Files.createDirectories(classes);
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new JavacTask(tb)
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Task.Expect.SUCCESS)
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.writeAll();
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var out = new JavaTask(tb)
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.classpath(classes.toString())
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.className("p2.Test")
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.run()
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.writeAll()
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.getOutputLines(Task.OutputKind.STDOUT);
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var expectedOut = List.of("pass");
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if (!Objects.equals(expectedOut, out)) {
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throw new AssertionError("Incorrect Output, expected: " + expectedOut +
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", actual: " + out);
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}
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}
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@Test
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public void testInaccessibleInferredTypeForEachIterable() throws Exception {
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Path base = Paths.get(".");
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Path src = base.resolve("src");
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Path classes = base.resolve("classes");
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tb.writeJavaFiles(src,
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"""
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package p1;
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import java.util.List;
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public class API {
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public static Iterable<PackagePrivate> get() {
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return List.of(new PackagePrivate());
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}
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}
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""",
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"""
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package p1;
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class PackagePrivate {
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public String toString() {
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return "pass";
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}
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}
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""",
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"""
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package p2;
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import p1.API;
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public class Test {
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public static void main(String... args) {
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for (var v : API.get()) {
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System.out.println(v);
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}
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}
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}
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""");
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Files.createDirectories(classes);
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var out = new JavacTask(tb)
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.options("-XDrawDiagnostics")
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Task.Expect.FAIL)
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.writeAll()
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.getOutputLines(Task.OutputKind.DIRECT);
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var expectedOut = List.of(
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"Test.java:5:22: compiler.err.not.def.public.cant.access: p1.PackagePrivate, p1",
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"1 error");
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if (!Objects.equals(expectedOut, out)) {
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throw new AssertionError("Incorrect Output, expected: " + expectedOut +
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", actual: " + out);
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}
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}
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@Test
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public void testInaccessibleInferredTypeForEachArray() throws Exception {
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Path base = Paths.get(".");
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Path src = base.resolve("src");
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Path classes = base.resolve("classes");
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tb.writeJavaFiles(src,
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"""
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package p1;
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import java.util.List;
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public class API {
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public static PackagePrivate[] get() {
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return new PackagePrivate[] {new PackagePrivate()};
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}
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}
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""",
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"""
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package p1;
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class PackagePrivate {
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public String toString() {
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return "pass";
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}
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}
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""",
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"""
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package p2;
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import p1.API;
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public class Test {
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public static void main(String... args) {
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for (var v : API.get()) {
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System.out.println(v);
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}
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}
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}
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""");
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Files.createDirectories(classes);
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new JavacTask(tb)
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Task.Expect.SUCCESS)
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.writeAll();
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var out = new JavaTask(tb)
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.classpath(classes.toString())
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.className("p2.Test")
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.run()
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.writeAll()
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.getOutputLines(Task.OutputKind.STDOUT);
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var expectedOut = List.of("pass");
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if (!Objects.equals(expectedOut, out)) {
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throw new AssertionError("Incorrect Output, expected: " + expectedOut +
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", actual: " + out);
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}
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}
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@Test
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public void testInaccessibleInferredTypeLambda() throws Exception {
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Path base = Paths.get(".");
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Path src = base.resolve("src");
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Path classes = base.resolve("classes");
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tb.writeJavaFiles(src,
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"""
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package p1;
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import java.util.function.Consumer;
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public class API {
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public static void run(Consumer<PackagePrivate> c) {
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c.accept(new PackagePrivate());
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}
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}
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""",
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"""
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package p1;
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class PackagePrivate {
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public String toString() {
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return "pass";
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}
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}
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""",
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"""
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package p2;
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import p1.API;
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public class Test {
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public static void main(String... args) {
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API.run(v -> System.out.println(v));
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API.run((var v) -> System.out.println(v));
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}
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}
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""");
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Files.createDirectories(classes);
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var out = new JavacTask(tb)
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.options("-XDrawDiagnostics")
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Task.Expect.FAIL)
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.writeAll()
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.getOutputLines(Task.OutputKind.DIRECT);
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var expectedOut = List.of(
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"Test.java:5:17: compiler.err.not.def.public.cant.access: p1.PackagePrivate, p1",
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"Test.java:6:17: compiler.err.not.def.public.cant.access: p1.PackagePrivate, p1",
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"2 errors");
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if (!Objects.equals(expectedOut, out)) {
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throw new AssertionError("Incorrect Output, expected: " + expectedOut +
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", actual: " + out);
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}
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}
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@Test
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public void testInaccessibleInferredTypeCanUse() throws Exception {
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Path base = Paths.get(".");
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Path src = base.resolve("src");
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Path classes = base.resolve("classes");
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tb.writeJavaFiles(src,
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"""
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package p1;
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public class API {
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public static PackagePrivate get() {
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return null;
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}
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}
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""",
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"""
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package p1;
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class PackagePrivate {
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public String toString() {
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return "pass";
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}
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}
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""",
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"""
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package p2;
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import p1.API;
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public class Test {
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public static void main(String... args) {
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var v = API.get();
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System.out.println(v.toString());
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}
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}
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""");
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Files.createDirectories(classes);
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List<String> log = new JavacTask(tb)
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.options("-XDrawDiagnostics")
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Task.Expect.FAIL)
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.writeAll()
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.getOutputLines(Task.OutputKind.DIRECT);
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var expectedOut = List.of(
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"Test.java:6:29: compiler.err.not.def.access.class.intf.cant.access: toString(), p1.PackagePrivate",
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"1 error"
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);
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if (!Objects.equals(expectedOut, log)) {
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throw new AssertionError("Incorrect Output, expected: " + expectedOut +
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", actual: " + log);
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}
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}
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@Test
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public void testInaccessibleInferredBindingPattern() throws Exception {
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Path base = Paths.get(".");
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Path src = base.resolve("src");
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Path classes = base.resolve("classes");
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tb.writeJavaFiles(src,
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"""
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package p1;
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public record API(PackagePrivate p) {
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public static API create() {
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return new API(new PackagePrivate());
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}
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}
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""",
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"""
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package p1;
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class PackagePrivate {
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public String toString() {
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return "pass";
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}
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}
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""",
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"""
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package p2;
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import p1.API;
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public class Test {
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public static void main(String... args) {
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Object o = API.create();
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if (o instanceof API(var v)) {
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System.out.println(v.toString());
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}
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}
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}
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""");
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Files.createDirectories(classes);
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List<String> log = new JavacTask(tb)
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.options("-XDrawDiagnostics")
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Task.Expect.FAIL)
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.writeAll()
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.getOutputLines(Task.OutputKind.DIRECT);
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var expectedOut = List.of(
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"Test.java:7:33: compiler.err.not.def.access.class.intf.cant.access: toString(), p1.PackagePrivate",
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"1 error"
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);
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if (!Objects.equals(expectedOut, log)) {
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throw new AssertionError("Incorrect Output, expected: " + expectedOut +
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", actual: " + log);
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}
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}
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}
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