| /* |
| * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 7192245 8005851 8005166 8071453 |
| * @summary Automatic test for checking set of allowed modifiers on interface methods |
| * @modules jdk.compiler |
| */ |
| |
| import com.sun.source.util.JavacTask; |
| import java.net.URI; |
| import java.util.Arrays; |
| import java.util.List; |
| import javax.tools.Diagnostic; |
| import javax.tools.JavaCompiler; |
| import javax.tools.JavaFileObject; |
| import javax.tools.SimpleJavaFileObject; |
| import javax.tools.StandardJavaFileManager; |
| import javax.tools.ToolProvider; |
| |
| |
| public class TestDefaultMethodsSyntax { |
| |
| static int checkCount = 0; |
| |
| enum VersionKind { |
| PRE_LAMBDA("7"), |
| LAMBDA("8"), |
| POST_LAMBDA("9"); |
| |
| String versionString; |
| |
| VersionKind(String versionString) { |
| this.versionString = versionString; |
| } |
| |
| List<String> getOptions() { |
| return Arrays.asList("-XDallowStaticInterfaceMethods", "-source", versionString); |
| } |
| } |
| |
| enum ModifierKind { |
| NONE(""), |
| PUBLIC("public"), |
| PROTECTED("protected"), |
| PRIVATE("private"), |
| ABSTRACT("abstract"), |
| STATIC("static"), |
| NATIVE("native"), |
| SYNCHRONIZED("synchronized"), |
| FINAL("final"), |
| STRICTFP("strictfp"), |
| DEFAULT("default"); |
| |
| String modStr; |
| |
| private ModifierKind(String modStr) { |
| this.modStr = modStr; |
| } |
| |
| static boolean intersect(ModifierKind mk, ModifierKind... mks) { |
| for (ModifierKind mk2 : mks) { |
| if (mk == mk2) return true; |
| } |
| return false; |
| } |
| |
| static boolean compatible(MethodKind mk, ModifierKind mod1, ModifierKind mod2, EnclosingKind ek) { |
| if (intersect(ABSTRACT, mod1, mod2) || intersect(NATIVE, mod1, mod2)) { |
| return mk == MethodKind.NO_BODY; |
| } else if (intersect(DEFAULT, mod1, mod2) || intersect(STATIC, mod1, mod2) |
| || intersect(PRIVATE, mod1, mod2)) { |
| return mk == MethodKind.BODY; |
| } else { |
| return ek == EnclosingKind.INTERFACE ? |
| mk == MethodKind.NO_BODY : mk == MethodKind.BODY; |
| } |
| } |
| |
| boolean compatible(EnclosingKind ek) { |
| switch (this) { |
| case PROTECTED: |
| return ek != EnclosingKind.INTERFACE; |
| default: |
| return true; |
| } |
| } |
| |
| static boolean compatible(ModifierKind m1, ModifierKind m2, EnclosingKind ek) { |
| Result res1 = allowedModifierPairs[m1.ordinal()][m2.ordinal()]; |
| Result res2 = allowedModifierPairs[m2.ordinal()][m1.ordinal()]; |
| if (res1 != res2) { |
| throw new AssertionError(String.format("Ill-formed table: [%s,%s] != [%s,%s]", m1, m2, m2, m1)); |
| } else { |
| return res1.compatible(ek, m1, m2); |
| } |
| } |
| |
| interface Result { |
| boolean compatible(EnclosingKind ek, ModifierKind m1, ModifierKind m2); |
| } |
| |
| static final Result T = new Result() { |
| @Override |
| public boolean compatible(EnclosingKind ek, ModifierKind m1, ModifierKind m2) { |
| return true; |
| } |
| }; |
| |
| static final Result F = new Result() { |
| @Override |
| public boolean compatible(EnclosingKind ek, ModifierKind m1, ModifierKind m2) { |
| return false; |
| } |
| }; |
| |
| static final Result C = new Result() { |
| @Override |
| public boolean compatible(EnclosingKind ek, ModifierKind m1, ModifierKind m2) { |
| return ek != EnclosingKind.INTERFACE; |
| } |
| }; |
| |
| static final Result I = new Result() { |
| @Override |
| public boolean compatible(EnclosingKind ek, ModifierKind m1, ModifierKind m2) { |
| return ek == EnclosingKind.INTERFACE; |
| } |
| }; |
| |
| static Result[][] allowedModifierPairs = { |
| /* NONE PUBLIC PROTECTED PRIVATE ABSTRACT STATIC NATIVE SYNCHRONIZED FINAL STRICTFP DEFAULT */ |
| /* NONE */ { T , T , C , T , T , T , C , C , C , C , I }, |
| /* PUBLIC */ { T , F , F , F , T , T , C , C , C , C , I }, |
| /* PROTECTED */ { C , F , F , F , C , C , C , C , C , C , F }, |
| /* PRIVATE */ { T , F , F , F , F , T , C , C , C , T , F }, |
| /* ABSTRACT */ { T , T , C , F , F , F , F , F , F , F , F }, |
| /* STATIC */ { T , T , C , T , F , F , C , C , C , T , F }, |
| /* NATIVE */ { C , C , C , C , F , C , F , C , C , F , F }, |
| /* SYNCHRONIZED */ { C , C , C , C , F , C , C , F , C , C , F }, |
| /* FINAL */ { C , C , C , C , F , C , C , C , F , C , F }, |
| /* STRICTFP */ { C , C , C , T , F , T , F , C , C , F , I }, |
| /* DEFAULT */ { I , I , F , F , F , F , F , F , F , I , F }}; |
| } |
| |
| enum MethodKind { |
| NO_BODY("void m();"), |
| BODY("void m() { }"); |
| |
| String methStr; |
| |
| private MethodKind(String methStr) { |
| this.methStr = methStr; |
| } |
| } |
| |
| enum EnclosingKind { |
| ABSTRACT_CLASS("abstract class Test "), |
| INTERFACE("interface Test "); |
| |
| String enclStr; |
| |
| EnclosingKind(String enclStr) { |
| this.enclStr = enclStr; |
| } |
| } |
| |
| public static void main(String... args) throws Exception { |
| |
| //create default shared JavaCompiler - reused across multiple compilations |
| JavaCompiler comp = ToolProvider.getSystemJavaCompiler(); |
| try (StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null)) { |
| |
| for (VersionKind vk : VersionKind.values()) { |
| for (EnclosingKind ek : EnclosingKind.values()) { |
| for (MethodKind mk : MethodKind.values()) { |
| for (ModifierKind modk1 : ModifierKind.values()) { |
| for (ModifierKind modk2 : ModifierKind.values()) { |
| new TestDefaultMethodsSyntax(vk, ek, mk, modk1, modk2).run(comp, fm); |
| } |
| } |
| } |
| } |
| } |
| System.out.println("Total check executed: " + checkCount); |
| } |
| } |
| |
| VersionKind vk; |
| EnclosingKind ek; |
| MethodKind mk; |
| ModifierKind modk1, modk2; |
| JavaSource source; |
| DiagnosticChecker diagChecker; |
| |
| TestDefaultMethodsSyntax(VersionKind vk, EnclosingKind ek, MethodKind mk, ModifierKind modk1, ModifierKind modk2) { |
| this.vk = vk; |
| this.ek = ek; |
| this.mk = mk; |
| this.modk1 = modk1; |
| this.modk2 = modk2; |
| this.source = new JavaSource(); |
| this.diagChecker = new DiagnosticChecker(); |
| } |
| |
| class JavaSource extends SimpleJavaFileObject { |
| |
| String template = "#EK {\n" + |
| " #MOD1 #MOD2 #METH\n" + |
| "}\n"; |
| |
| String source; |
| |
| public JavaSource() { |
| super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
| source = template.replaceAll("#EK", ek.enclStr) |
| .replaceAll("#MOD1", modk1.modStr) |
| .replaceAll("#MOD2", modk2.modStr) |
| .replaceAll("#METH", mk.methStr); |
| } |
| |
| @Override |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
| return source; |
| } |
| } |
| |
| void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception { |
| JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker, |
| vk.getOptions(), null, Arrays.asList(source)); |
| try { |
| ct.analyze(); |
| } catch (Throwable ex) { |
| throw new AssertionError("Error thrown when analyzing the following source:\n" + source.getCharContent(true)); |
| } |
| check(); |
| } |
| |
| void check() { |
| boolean errorExpected = !ModifierKind.compatible(modk1, modk2, ek); |
| |
| errorExpected |= !ModifierKind.compatible(mk, modk1, modk2, ek); |
| |
| errorExpected |= !modk1.compatible(ek) || !modk2.compatible(ek); |
| |
| errorExpected |= ModifierKind.intersect(ModifierKind.DEFAULT, modk1, modk2) && |
| vk == VersionKind.PRE_LAMBDA; |
| |
| errorExpected |= ModifierKind.intersect(ModifierKind.STATIC, modk1, modk2) && |
| ek == EnclosingKind.INTERFACE && vk == VersionKind.PRE_LAMBDA; |
| |
| errorExpected |= ModifierKind.intersect(ModifierKind.PRIVATE, modk1, modk2) && |
| ek == EnclosingKind.INTERFACE && (vk == VersionKind.LAMBDA || vk == VersionKind.PRE_LAMBDA); |
| |
| checkCount++; |
| if (diagChecker.errorFound != errorExpected) { |
| throw new AssertionError("Problem when compiling source:\n" + source.getCharContent(true) + |
| "\nfound error: " + diagChecker.errorFound); |
| } |
| } |
| |
| static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> { |
| |
| boolean errorFound; |
| |
| public void report(Diagnostic<? extends JavaFileObject> diagnostic) { |
| if (diagnostic.getKind() == Diagnostic.Kind.ERROR) { |
| errorFound = true; |
| } |
| } |
| } |
| } |