aoqi@0: /*
aoqi@0:  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test
aoqi@0:  * @bug 7027157
aoqi@0:  * @summary Project Coin: javac warnings for AutoCloseable.close throwing InterruptedException
aoqi@0:  */
aoqi@0: 
aoqi@0: import com.sun.source.util.JavacTask;
aoqi@0: import java.net.URI;
aoqi@0: import java.util.Arrays;
aoqi@0: import javax.tools.Diagnostic;
aoqi@0: import javax.tools.JavaCompiler;
aoqi@0: import javax.tools.JavaFileObject;
aoqi@0: import javax.tools.SimpleJavaFileObject;
aoqi@0: import javax.tools.StandardJavaFileManager;
aoqi@0: import javax.tools.ToolProvider;
aoqi@0: 
aoqi@0: public class InterruptedExceptionTest {
aoqi@0: 
aoqi@0:     enum XlintOption {
aoqi@0:         NONE("none"),
aoqi@0:         TRY("try");
aoqi@0: 
aoqi@0:         String opt;
aoqi@0: 
aoqi@0:         XlintOption(String opt) {
aoqi@0:             this.opt = opt;
aoqi@0:         }
aoqi@0: 
aoqi@0:         String getXlintOption() {
aoqi@0:             return "-Xlint:" + opt;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     enum SuppressLevel {
aoqi@0:         NONE,
aoqi@0:         SUPPRESS;
aoqi@0: 
aoqi@0:         String getSuppressAnno() {
aoqi@0:             return this == SUPPRESS ?
aoqi@0:                 "@SuppressWarnings(\"try\")" :
aoqi@0:                 "";
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     enum ClassKind {
aoqi@0:         ABSTRACT_CLASS("abstract class", "implements", false),
aoqi@0:         CLASS("class", "implements", true),
aoqi@0:         INTERFACE("interface", "extends", false);
aoqi@0: 
aoqi@0:         String kindName;
aoqi@0:         String extendsClause;
aoqi@0:         boolean hasBody;
aoqi@0: 
aoqi@0:         private ClassKind(String kindName, String extendsClause, boolean hasBody) {
aoqi@0:             this.kindName = kindName;
aoqi@0:             this.extendsClause = extendsClause;
aoqi@0:             this.hasBody = hasBody;
aoqi@0:         }
aoqi@0: 
aoqi@0:         String getBody() {
aoqi@0:             return hasBody ? "{}" : ";";
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     enum ExceptionKind {
aoqi@0:         NONE("", false),
aoqi@0:         EXCEPTION("Exception", true),
aoqi@0:         INTERRUPTED_EXCEPTION("InterruptedException", true),
aoqi@0:         ILLEGAL_ARGUMENT_EXCEPTION("IllegalArgumentException", false),
aoqi@0:         X("X", false);
aoqi@0: 
aoqi@0:         String exName;
aoqi@0:         boolean shouldWarn;
aoqi@0: 
aoqi@0:         private ExceptionKind(String exName, boolean shouldWarn) {
aoqi@0:             this.exName = exName;
aoqi@0:             this.shouldWarn = shouldWarn;
aoqi@0:         }
aoqi@0: 
aoqi@0:         String getThrowsClause() {
aoqi@0:             return this == NONE ? "" : "throws " + exName;
aoqi@0:         }
aoqi@0: 
aoqi@0:         String getTypeArguments(ExceptionKind decl) {
aoqi@0:             return (decl != X || this == NONE) ? "" : "<" + exName + ">";
aoqi@0:         }
aoqi@0: 
aoqi@0:         String getTypeParameter() {
aoqi@0:             return this == X ? "<X extends Exception>" : "";
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static void main(String... args) throws Exception {
aoqi@0: 
aoqi@0:         //create default shared JavaCompiler - reused across multiple compilations
aoqi@0:         JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
aoqi@0:         StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);
aoqi@0: 
aoqi@0:         for (XlintOption xlint : XlintOption.values()) {
aoqi@0:             for (SuppressLevel suppress_decl : SuppressLevel.values()) {
aoqi@0:                 for (SuppressLevel suppress_use : SuppressLevel.values()) {
aoqi@0:                     for (ClassKind ck : ClassKind.values()) {
aoqi@0:                         for (ExceptionKind ek_decl : ExceptionKind.values()) {
aoqi@0:                             for (ExceptionKind ek_use : ExceptionKind.values()) {
aoqi@0:                                 new InterruptedExceptionTest(xlint, suppress_decl,
aoqi@0:                                         suppress_use, ck, ek_decl, ek_use).run(comp, fm);
aoqi@0:                             }
aoqi@0:                         }
aoqi@0:                     }
aoqi@0:                 }
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     XlintOption xlint;
aoqi@0:     SuppressLevel suppress_decl;
aoqi@0:     SuppressLevel suppress_use;
aoqi@0:     ClassKind ck;
aoqi@0:     ExceptionKind ek_decl;
aoqi@0:     ExceptionKind ek_use;
aoqi@0:     JavaSource source;
aoqi@0:     DiagnosticChecker diagChecker;
aoqi@0: 
aoqi@0:     InterruptedExceptionTest(XlintOption xlint, SuppressLevel suppress_decl, SuppressLevel suppress_use,
aoqi@0:             ClassKind ck, ExceptionKind ek_decl, ExceptionKind ek_use) {
aoqi@0:         this.xlint = xlint;
aoqi@0:         this.suppress_decl = suppress_decl;
aoqi@0:         this.suppress_use = suppress_use;
aoqi@0:         this.ck = ck;
aoqi@0:         this.ek_decl = ek_decl;
aoqi@0:         this.ek_use = ek_use;
aoqi@0:         this.source = new JavaSource();
aoqi@0:         this.diagChecker = new DiagnosticChecker();
aoqi@0:     }
aoqi@0: 
aoqi@0:     class JavaSource extends SimpleJavaFileObject {
aoqi@0: 
aoqi@0:         String template = "#S1 #CK Resource#G #EC AutoCloseable {\n" +
aoqi@0:                               "public void close() #TK #BK\n" +
aoqi@0:                           "}\n" +
aoqi@0:                           "class Test {\n" +
aoqi@0:                               "#S2 <X> void test() {\n" +
aoqi@0:                                  "try (Resource#PK r = null) { }\n" +
aoqi@0:                               "}\n" +
aoqi@0:                           "}\n";
aoqi@0: 
aoqi@0:         String source;
aoqi@0: 
aoqi@0:         public JavaSource() {
aoqi@0:             super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
aoqi@0:             source = template.replace("#S1", suppress_decl.getSuppressAnno())
aoqi@0:                     .replace("#S2", suppress_use.getSuppressAnno())
aoqi@0:                     .replace("#CK", ck.kindName)
aoqi@0:                     .replace("#EC", ck.extendsClause)
aoqi@0:                     .replace("#G", ek_decl.getTypeParameter())
aoqi@0:                     .replace("#TK", ek_decl.getThrowsClause())
aoqi@0:                     .replace("#BK", ck.getBody())
aoqi@0:                     .replace("#PK", ek_use.getTypeArguments(ek_decl));
aoqi@0:         }
aoqi@0: 
aoqi@0:         @Override
aoqi@0:         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0:             return source;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {
aoqi@0:         JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,
aoqi@0:                 Arrays.asList(xlint.getXlintOption()), null, Arrays.asList(source));
aoqi@0:         ct.analyze();
aoqi@0:         check();
aoqi@0:     }
aoqi@0: 
aoqi@0:     void check() {
aoqi@0: 
aoqi@0:         boolean shouldWarnDecl = ek_decl.shouldWarn &&
aoqi@0:                 xlint == XlintOption.TRY &&
aoqi@0:                 suppress_decl != SuppressLevel.SUPPRESS;
aoqi@0: 
aoqi@0:         boolean shouldWarnUse = (ek_decl.shouldWarn ||
aoqi@0:                 ((ek_use.shouldWarn || ek_use == ExceptionKind.NONE) && ek_decl == ExceptionKind.X)) &&
aoqi@0:                 xlint == XlintOption.TRY &&
aoqi@0:                 suppress_use != SuppressLevel.SUPPRESS;
aoqi@0: 
aoqi@0:         int foundWarnings = 0;
aoqi@0: 
aoqi@0:         if (shouldWarnDecl) foundWarnings++;
aoqi@0:         if (shouldWarnUse) foundWarnings++;
aoqi@0: 
aoqi@0:         if (foundWarnings != diagChecker.tryWarnFound) {
aoqi@0:             throw new Error("invalid diagnostics for source:\n" +
aoqi@0:                 source.getCharContent(true) +
aoqi@0:                 "\nOptions: " + xlint.getXlintOption() +
aoqi@0:                 "\nFound warnings: " + diagChecker.tryWarnFound +
aoqi@0:                 "\nExpected decl warning: " + shouldWarnDecl +
aoqi@0:                 "\nExpected use warning: " + shouldWarnUse);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
aoqi@0: 
aoqi@0:         int tryWarnFound;
aoqi@0: 
aoqi@0:         public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
aoqi@0:             if (diagnostic.getKind() == Diagnostic.Kind.WARNING &&
aoqi@0:                     diagnostic.getCode().contains("try.resource.throws.interrupted.exc")) {
aoqi@0:                 tryWarnFound++;
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: }