287 lines
10 KiB
Java
287 lines
10 KiB
Java
/*
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* Copyright (c) 2012, 2022, 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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* @bug 7192245 8005851 8005166 8071453
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* @summary Automatic test for checking set of allowed modifiers on interface methods
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* @modules jdk.compiler
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*/
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import com.sun.source.util.JavacTask;
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import java.net.URI;
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import java.util.Arrays;
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import java.util.List;
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import javax.tools.Diagnostic;
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import javax.tools.JavaCompiler;
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import javax.tools.JavaFileObject;
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import javax.tools.SimpleJavaFileObject;
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import javax.tools.StandardJavaFileManager;
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import javax.tools.ToolProvider;
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public class TestDefaultMethodsSyntax {
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static int checkCount = 0;
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enum VersionKind {
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LAMBDA("8"),
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POST_LAMBDA(Integer.toString(javax.lang.model.SourceVersion.latest().runtimeVersion().feature()));
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String versionString;
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VersionKind(String versionString) {
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this.versionString = versionString;
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}
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List<String> getOptions() {
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return Arrays.asList("-XDallowStaticInterfaceMethods", "--release", versionString);
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}
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}
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enum ModifierKind {
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NONE(""),
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PUBLIC("public"),
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PROTECTED("protected"),
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PRIVATE("private"),
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ABSTRACT("abstract"),
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STATIC("static"),
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NATIVE("native"),
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SYNCHRONIZED("synchronized"),
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FINAL("final"),
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STRICTFP("strictfp"),
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DEFAULT("default");
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String modStr;
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private ModifierKind(String modStr) {
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this.modStr = modStr;
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}
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static boolean intersect(ModifierKind mk, ModifierKind... mks) {
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for (ModifierKind mk2 : mks) {
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if (mk == mk2) return true;
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}
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return false;
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}
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static boolean compatible(MethodKind mk, ModifierKind mod1, ModifierKind mod2, EnclosingKind ek) {
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if (intersect(ABSTRACT, mod1, mod2) || intersect(NATIVE, mod1, mod2)) {
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return mk == MethodKind.NO_BODY;
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} else if (intersect(DEFAULT, mod1, mod2) || intersect(STATIC, mod1, mod2)
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|| intersect(PRIVATE, mod1, mod2)) {
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return mk == MethodKind.BODY;
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} else {
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return ek == EnclosingKind.INTERFACE ?
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mk == MethodKind.NO_BODY : mk == MethodKind.BODY;
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}
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}
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boolean compatible(EnclosingKind ek) {
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switch (this) {
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case PROTECTED:
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return ek != EnclosingKind.INTERFACE;
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default:
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return true;
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}
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}
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static boolean compatible(ModifierKind m1, ModifierKind m2, EnclosingKind ek) {
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Result res1 = allowedModifierPairs[m1.ordinal()][m2.ordinal()];
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Result res2 = allowedModifierPairs[m2.ordinal()][m1.ordinal()];
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if (res1 != res2) {
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throw new AssertionError(String.format("Ill-formed table: [%s,%s] != [%s,%s]", m1, m2, m2, m1));
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} else {
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return res1.compatible(ek, m1, m2);
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}
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}
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interface Result {
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boolean compatible(EnclosingKind ek, ModifierKind m1, ModifierKind m2);
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}
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static final Result T = new Result() {
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@Override
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public boolean compatible(EnclosingKind ek, ModifierKind m1, ModifierKind m2) {
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return true;
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}
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};
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static final Result F = new Result() {
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@Override
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public boolean compatible(EnclosingKind ek, ModifierKind m1, ModifierKind m2) {
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return false;
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}
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};
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static final Result C = new Result() {
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@Override
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public boolean compatible(EnclosingKind ek, ModifierKind m1, ModifierKind m2) {
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return ek != EnclosingKind.INTERFACE;
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}
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};
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static final Result I = new Result() {
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@Override
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public boolean compatible(EnclosingKind ek, ModifierKind m1, ModifierKind m2) {
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return ek == EnclosingKind.INTERFACE;
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}
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};
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static Result[][] allowedModifierPairs = {
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/* NONE PUBLIC PROTECTED PRIVATE ABSTRACT STATIC NATIVE SYNCHRONIZED FINAL STRICTFP DEFAULT */
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/* NONE */ { T , T , C , T , T , T , C , C , C , C , I },
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/* PUBLIC */ { T , F , F , F , T , T , C , C , C , C , I },
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/* PROTECTED */ { C , F , F , F , C , C , C , C , C , C , F },
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/* PRIVATE */ { T , F , F , F , F , T , C , C , C , T , F },
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/* ABSTRACT */ { T , T , C , F , F , F , F , F , F , F , F },
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/* STATIC */ { T , T , C , T , F , F , C , C , C , T , F },
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/* NATIVE */ { C , C , C , C , F , C , F , C , C , F , F },
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/* SYNCHRONIZED */ { C , C , C , C , F , C , C , F , C , C , F },
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/* FINAL */ { C , C , C , C , F , C , C , C , F , C , F },
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/* STRICTFP */ { C , C , C , T , F , T , F , C , C , F , I },
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/* DEFAULT */ { I , I , F , F , F , F , F , F , F , I , F }};
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}
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enum MethodKind {
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NO_BODY("void m();"),
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BODY("void m() { }");
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String methStr;
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private MethodKind(String methStr) {
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this.methStr = methStr;
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}
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}
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enum EnclosingKind {
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ABSTRACT_CLASS("abstract class Test "),
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INTERFACE("interface Test ");
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String enclStr;
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EnclosingKind(String enclStr) {
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this.enclStr = enclStr;
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}
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}
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public static void main(String... args) throws Exception {
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//create default shared JavaCompiler - reused across multiple compilations
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JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
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try (StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null)) {
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for (VersionKind vk : VersionKind.values()) {
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for (EnclosingKind ek : EnclosingKind.values()) {
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for (MethodKind mk : MethodKind.values()) {
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for (ModifierKind modk1 : ModifierKind.values()) {
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for (ModifierKind modk2 : ModifierKind.values()) {
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new TestDefaultMethodsSyntax(vk, ek, mk, modk1, modk2).run(comp, fm);
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}
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}
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}
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}
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}
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System.out.println("Total check executed: " + checkCount);
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}
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}
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VersionKind vk;
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EnclosingKind ek;
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MethodKind mk;
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ModifierKind modk1, modk2;
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JavaSource source;
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DiagnosticChecker diagChecker;
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TestDefaultMethodsSyntax(VersionKind vk, EnclosingKind ek, MethodKind mk, ModifierKind modk1, ModifierKind modk2) {
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this.vk = vk;
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this.ek = ek;
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this.mk = mk;
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this.modk1 = modk1;
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this.modk2 = modk2;
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this.source = new JavaSource();
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this.diagChecker = new DiagnosticChecker();
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}
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class JavaSource extends SimpleJavaFileObject {
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String template = "#EK {\n" +
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" #MOD1 #MOD2 #METH\n" +
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"}\n";
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String source;
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public JavaSource() {
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super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
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source = template.replaceAll("#EK", ek.enclStr)
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.replaceAll("#MOD1", modk1.modStr)
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.replaceAll("#MOD2", modk2.modStr)
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.replaceAll("#METH", mk.methStr);
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}
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@Override
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public CharSequence getCharContent(boolean ignoreEncodingErrors) {
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return source;
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}
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}
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void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {
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JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,
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vk.getOptions(), null, Arrays.asList(source));
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try {
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ct.analyze();
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} catch (Throwable ex) {
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throw new AssertionError("Error thrown when analyzing the following source:\n" + source.getCharContent(true));
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}
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check();
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}
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void check() {
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boolean errorExpected = !ModifierKind.compatible(modk1, modk2, ek);
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errorExpected |= !ModifierKind.compatible(mk, modk1, modk2, ek);
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errorExpected |= !modk1.compatible(ek) || !modk2.compatible(ek);
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errorExpected |= ModifierKind.intersect(ModifierKind.PRIVATE, modk1, modk2) &&
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ek == EnclosingKind.INTERFACE && (vk == VersionKind.LAMBDA );
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checkCount++;
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if (diagChecker.errorFound != errorExpected) {
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throw new AssertionError("Problem when compiling source:\n" + source.getCharContent(true) +
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"\nfound error: " + diagChecker.errorFound);
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}
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}
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static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
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boolean errorFound;
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public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
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if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
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errorFound = true;
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}
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}
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}
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}
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