mcimadamore@1436: /*
vromero@1482:  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
mcimadamore@1436:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
mcimadamore@1436:  *
mcimadamore@1436:  * This code is free software; you can redistribute it and/or modify it
mcimadamore@1436:  * under the terms of the GNU General Public License version 2 only, as
mcimadamore@1436:  * published by the Free Software Foundation.
mcimadamore@1436:  *
mcimadamore@1436:  * This code is distributed in the hope that it will be useful, but WITHOUT
mcimadamore@1436:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
mcimadamore@1436:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
mcimadamore@1436:  * version 2 for more details (a copy is included in the LICENSE file that
mcimadamore@1436:  * accompanied this code).
mcimadamore@1436:  *
mcimadamore@1436:  * You should have received a copy of the GNU General Public License version
mcimadamore@1436:  * 2 along with this work; if not, write to the Free Software Foundation,
mcimadamore@1436:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
mcimadamore@1436:  *
mcimadamore@1436:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
mcimadamore@1436:  * or visit www.oracle.com if you need additional information or have any
mcimadamore@1436:  * questions.
mcimadamore@1436:  */
mcimadamore@1436: 
mcimadamore@1436: /*
mcimadamore@1436:  * @test
vromero@1520:  * @bug 8002099 8006694
mcimadamore@1436:  * @summary Add support for intersection types in cast expression
vromero@1520:  *  temporarily workaround combo tests are causing time out in several platforms
vromero@1482:  * @library ../../lib
vromero@1482:  * @build JavacTestingAbstractThreadedTest
vromero@1520:  * @run main/othervm/timeout=360 IntersectionTypeCastTest
mcimadamore@1436:  */
mcimadamore@1436: 
vromero@1520: // use /othervm to avoid jtreg timeout issues (CODETOOLS-7900047)
vromero@1520: // see JDK-8006746
vromero@1520: 
mcimadamore@1436: import java.net.URI;
mcimadamore@1436: import java.util.Arrays;
mcimadamore@1436: import javax.tools.Diagnostic;
mcimadamore@1436: import javax.tools.JavaCompiler;
mcimadamore@1436: import javax.tools.JavaFileObject;
mcimadamore@1436: import javax.tools.SimpleJavaFileObject;
mcimadamore@1436: import javax.tools.ToolProvider;
mcimadamore@1436: 
vromero@1482: import com.sun.source.util.JavacTask;
vromero@1482: import com.sun.tools.javac.util.List;
vromero@1482: import com.sun.tools.javac.util.ListBuffer;
mcimadamore@1436: 
vromero@1482: public class IntersectionTypeCastTest
vromero@1482:     extends JavacTestingAbstractThreadedTest
vromero@1482:     implements Runnable {
mcimadamore@1436: 
mcimadamore@1436:     interface Type {
mcimadamore@1436:         boolean subtypeOf(Type that);
mcimadamore@1436:         String asString();
mcimadamore@1436:         boolean isClass();
mcimadamore@1436:         boolean isInterface();
mcimadamore@1436:     }
mcimadamore@1436: 
mcimadamore@1436:     enum InterfaceKind implements Type {
mcimadamore@1436:         A("interface A { }\n", "A", null),
mcimadamore@1436:         B("interface B { }\n", "B", null),
mcimadamore@1436:         C("interface C extends A { }\n", "C", A);
mcimadamore@1436: 
mcimadamore@1436:         String declStr;
mcimadamore@1436:         String typeStr;
mcimadamore@1436:         InterfaceKind superInterface;
mcimadamore@1436: 
vromero@1482:         InterfaceKind(String declStr, String typeStr,
vromero@1482:                 InterfaceKind superInterface) {
mcimadamore@1436:             this.declStr = declStr;
mcimadamore@1436:             this.typeStr = typeStr;
mcimadamore@1436:             this.superInterface = superInterface;
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         @Override
mcimadamore@1436:         public boolean subtypeOf(Type that) {
vromero@1482:             return this == that || superInterface == that ||
vromero@1482:                    that == ClassKind.OBJECT;
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         @Override
mcimadamore@1436:         public String asString() {
mcimadamore@1436:             return typeStr;
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         @Override
mcimadamore@1436:         public boolean isClass() {
mcimadamore@1436:             return false;
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         @Override
mcimadamore@1436:         public boolean isInterface() {
mcimadamore@1436:             return true;
mcimadamore@1436:         }
mcimadamore@1436:     }
mcimadamore@1436: 
mcimadamore@1436:     enum ClassKind implements Type {
mcimadamore@1436:         OBJECT(null, "Object"),
vromero@1482:         CA("#M class CA implements A { }\n", "CA",
vromero@1482:            InterfaceKind.A),
vromero@1482:         CB("#M class CB implements B { }\n", "CB",
vromero@1482:            InterfaceKind.B),
vromero@1482:         CAB("#M class CAB implements A, B { }\n", "CAB",
vromero@1482:             InterfaceKind.A, InterfaceKind.B),
vromero@1482:         CC("#M class CC implements C { }\n", "CC",
vromero@1482:            InterfaceKind.C, InterfaceKind.A),
vromero@1482:         CCA("#M class CCA implements C, A { }\n", "CCA",
vromero@1482:             InterfaceKind.C, InterfaceKind.A),
vromero@1482:         CCB("#M class CCB implements C, B { }\n", "CCB",
vromero@1482:             InterfaceKind.C, InterfaceKind.A, InterfaceKind.B),
vromero@1482:         CCAB("#M class CCAB implements C, A, B { }\n", "CCAB",
vromero@1482:              InterfaceKind.C, InterfaceKind.A, InterfaceKind.B);
mcimadamore@1436: 
mcimadamore@1436:         String declTemplate;
mcimadamore@1436:         String typeStr;
mcimadamore@1436:         List<InterfaceKind> superInterfaces;
mcimadamore@1436: 
vromero@1482:         ClassKind(String declTemplate, String typeStr,
vromero@1482:                 InterfaceKind... superInterfaces) {
mcimadamore@1436:             this.declTemplate = declTemplate;
mcimadamore@1436:             this.typeStr = typeStr;
mcimadamore@1436:             this.superInterfaces = List.from(superInterfaces);
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         String getDecl(ModifierKind mod) {
mcimadamore@1436:             return declTemplate != null ?
mcimadamore@1436:                     declTemplate.replaceAll("#M", mod.modStr) :
mcimadamore@1436:                     "";
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         @Override
mcimadamore@1436:         public boolean subtypeOf(Type that) {
vromero@1482:             return this == that || superInterfaces.contains(that) ||
vromero@1482:                     that == OBJECT;
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         @Override
mcimadamore@1436:         public String asString() {
mcimadamore@1436:             return typeStr;
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         @Override
mcimadamore@1436:         public boolean isClass() {
mcimadamore@1436:             return true;
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         @Override
mcimadamore@1436:         public boolean isInterface() {
mcimadamore@1436:             return false;
mcimadamore@1436:         }
mcimadamore@1436:     }
mcimadamore@1436: 
mcimadamore@1436:     enum ModifierKind {
mcimadamore@1436:         NONE(""),
mcimadamore@1436:         FINAL("final");
mcimadamore@1436: 
mcimadamore@1436:         String modStr;
mcimadamore@1436: 
mcimadamore@1436:         ModifierKind(String modStr) {
mcimadamore@1436:             this.modStr = modStr;
mcimadamore@1436:         }
mcimadamore@1436:     }
mcimadamore@1436: 
mcimadamore@1436:     enum CastKind {
mcimadamore@1436:         CLASS("(#C)", 0),
mcimadamore@1436:         INTERFACE("(#I0)", 1),
mcimadamore@1436:         INTERSECTION2("(#C & #I0)", 1),
mcimadamore@1436:         INTERSECTION3("(#C & #I0 & #I1)", 2);
mcimadamore@1436:         //INTERSECTION4("(#C & #I0 & #I1 & #I2)", 3);
mcimadamore@1436: 
mcimadamore@1436:         String castTemplate;
mcimadamore@1436:         int interfaceBounds;
mcimadamore@1436: 
mcimadamore@1436:         CastKind(String castTemplate, int interfaceBounds) {
mcimadamore@1436:             this.castTemplate = castTemplate;
mcimadamore@1436:             this.interfaceBounds = interfaceBounds;
mcimadamore@1436:         }
mcimadamore@1436:     }
mcimadamore@1436: 
mcimadamore@1436:     static class CastInfo {
mcimadamore@1436:         CastKind kind;
mcimadamore@1436:         Type[] types;
mcimadamore@1436: 
mcimadamore@1436:         CastInfo(CastKind kind, Type... types) {
mcimadamore@1436:             this.kind = kind;
mcimadamore@1436:             this.types = types;
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         String getCast() {
vromero@1482:             String temp = kind.castTemplate.replaceAll("#C",
vromero@1482:                     types[0].asString());
mcimadamore@1436:             for (int i = 0; i < kind.interfaceBounds ; i++) {
vromero@1482:                 temp = temp.replace(String.format("#I%d", i),
vromero@1482:                                     types[i + 1].asString());
mcimadamore@1436:             }
mcimadamore@1436:             return temp;
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         boolean hasDuplicateTypes() {
mcimadamore@1436:             for (int i = 0 ; i < types.length ; i++) {
mcimadamore@1436:                 for (int j = 0 ; j < types.length ; j++) {
mcimadamore@1436:                     if (i != j && types[i] == types[j]) {
mcimadamore@1436:                         return true;
mcimadamore@1436:                     }
mcimadamore@1436:                 }
mcimadamore@1436:             }
mcimadamore@1436:             return false;
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         boolean compatibleWith(ModifierKind mod, CastInfo that) {
mcimadamore@1436:             for (Type t1 : types) {
mcimadamore@1436:                 for (Type t2 : that.types) {
mcimadamore@1436:                     boolean compat =
mcimadamore@1436:                             t1.subtypeOf(t2) ||
mcimadamore@1436:                             t2.subtypeOf(t1) ||
mcimadamore@1436:                             (t1.isInterface() && t2.isInterface()) || //side-cast (1)
vromero@1482:                             (mod == ModifierKind.NONE &&
vromero@1482:                             (t1.isInterface() != t2.isInterface())); //side-cast (2)
mcimadamore@1436:                     if (!compat) return false;
mcimadamore@1436:                 }
mcimadamore@1436:             }
mcimadamore@1436:             return true;
mcimadamore@1436:         }
mcimadamore@1436:     }
mcimadamore@1436: 
mcimadamore@1436:     public static void main(String... args) throws Exception {
mcimadamore@1436:         for (ModifierKind mod : ModifierKind.values()) {
mcimadamore@1436:             for (CastInfo cast1 : allCastInfo()) {
mcimadamore@1436:                 for (CastInfo cast2 : allCastInfo()) {
vromero@1482:                     pool.execute(
vromero@1482:                         new IntersectionTypeCastTest(mod, cast1, cast2));
mcimadamore@1436:                 }
mcimadamore@1436:             }
mcimadamore@1436:         }
vromero@1482:         checkAfterExec();
mcimadamore@1436:     }
mcimadamore@1436: 
mcimadamore@1436:     static List<CastInfo> allCastInfo() {
mcimadamore@1436:         ListBuffer<CastInfo> buf = ListBuffer.lb();
mcimadamore@1436:         for (CastKind kind : CastKind.values()) {
mcimadamore@1436:             for (ClassKind clazz : ClassKind.values()) {
mcimadamore@1436:                 if (kind == CastKind.INTERFACE && clazz != ClassKind.OBJECT) {
mcimadamore@1436:                     continue;
mcimadamore@1436:                 } else if (kind.interfaceBounds == 0) {
mcimadamore@1436:                     buf.append(new CastInfo(kind, clazz));
mcimadamore@1436:                     continue;
mcimadamore@1436:                 } else {
mcimadamore@1436:                     for (InterfaceKind intf1 : InterfaceKind.values()) {
mcimadamore@1436:                         if (kind.interfaceBounds == 1) {
mcimadamore@1436:                             buf.append(new CastInfo(kind, clazz, intf1));
mcimadamore@1436:                             continue;
mcimadamore@1436:                         } else {
mcimadamore@1436:                             for (InterfaceKind intf2 : InterfaceKind.values()) {
mcimadamore@1436:                                 if (kind.interfaceBounds == 2) {
vromero@1482:                                     buf.append(
vromero@1482:                                             new CastInfo(kind, clazz, intf1, intf2));
mcimadamore@1436:                                     continue;
mcimadamore@1436:                                 } else {
mcimadamore@1436:                                     for (InterfaceKind intf3 : InterfaceKind.values()) {
vromero@1482:                                         buf.append(
vromero@1482:                                                 new CastInfo(kind, clazz, intf1,
vromero@1482:                                                              intf2, intf3));
mcimadamore@1436:                                         continue;
mcimadamore@1436:                                     }
mcimadamore@1436:                                 }
mcimadamore@1436:                             }
mcimadamore@1436:                         }
mcimadamore@1436:                     }
mcimadamore@1436:                 }
mcimadamore@1436:             }
mcimadamore@1436:         }
mcimadamore@1436:         return buf.toList();
mcimadamore@1436:     }
mcimadamore@1436: 
mcimadamore@1436:     ModifierKind mod;
mcimadamore@1436:     CastInfo cast1, cast2;
mcimadamore@1436:     JavaSource source;
mcimadamore@1436:     DiagnosticChecker diagChecker;
mcimadamore@1436: 
mcimadamore@1436:     IntersectionTypeCastTest(ModifierKind mod, CastInfo cast1, CastInfo cast2) {
mcimadamore@1436:         this.mod = mod;
mcimadamore@1436:         this.cast1 = cast1;
mcimadamore@1436:         this.cast2 = cast2;
mcimadamore@1436:         this.source = new JavaSource();
mcimadamore@1436:         this.diagChecker = new DiagnosticChecker();
mcimadamore@1436:     }
mcimadamore@1436: 
vromero@1482:     @Override
vromero@1482:     public void run() {
vromero@1482:         final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
vromero@1482: 
vromero@1482:         JavacTask ct = (JavacTask)tool.getTask(null, fm.get(), diagChecker,
mcimadamore@1511:                 null, null, Arrays.asList(source));
vromero@1482:         try {
vromero@1482:             ct.analyze();
vromero@1482:         } catch (Throwable ex) {
vromero@1482:             throw new AssertionError("Error thrown when compiling the following code:\n" +
vromero@1482:                     source.getCharContent(true));
vromero@1482:         }
vromero@1482:         check();
vromero@1482:     }
vromero@1482: 
mcimadamore@1436:     class JavaSource extends SimpleJavaFileObject {
mcimadamore@1436: 
mcimadamore@1436:         String bodyTemplate = "class Test {\n" +
mcimadamore@1436:                               "   void test() {\n" +
mcimadamore@1436:                               "      Object o = #C1#C2null;\n" +
mcimadamore@1436:                               "   } }";
mcimadamore@1436: 
mcimadamore@1436:         String source = "";
mcimadamore@1436: 
mcimadamore@1436:         public JavaSource() {
mcimadamore@1436:             super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
mcimadamore@1436:             for (ClassKind ck : ClassKind.values()) {
mcimadamore@1436:                 source += ck.getDecl(mod);
mcimadamore@1436:             }
mcimadamore@1436:             for (InterfaceKind ik : InterfaceKind.values()) {
mcimadamore@1436:                 source += ik.declStr;
mcimadamore@1436:             }
vromero@1482:             source += bodyTemplate.replaceAll("#C1", cast1.getCast()).
vromero@1482:                     replaceAll("#C2", cast2.getCast());
mcimadamore@1436:         }
mcimadamore@1436: 
mcimadamore@1436:         @Override
mcimadamore@1436:         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
mcimadamore@1436:             return source;
mcimadamore@1436:         }
mcimadamore@1436:     }
mcimadamore@1436: 
vromero@1482:     void check() {
vromero@1482:         checkCount.incrementAndGet();
mcimadamore@1436: 
vromero@1482:         boolean errorExpected = cast1.hasDuplicateTypes() ||
vromero@1482:                 cast2.hasDuplicateTypes();
mcimadamore@1436: 
mcimadamore@1436:         errorExpected |= !cast2.compatibleWith(mod, cast1);
mcimadamore@1436: 
mcimadamore@1436:         if (errorExpected != diagChecker.errorFound) {
mcimadamore@1436:             throw new Error("invalid diagnostics for source:\n" +
mcimadamore@1436:                 source.getCharContent(true) +
mcimadamore@1436:                 "\nFound error: " + diagChecker.errorFound +
mcimadamore@1436:                 "\nExpected error: " + errorExpected);
mcimadamore@1436:         }
mcimadamore@1436:     }
mcimadamore@1436: 
vromero@1482:     static class DiagnosticChecker
vromero@1482:         implements javax.tools.DiagnosticListener<JavaFileObject> {
mcimadamore@1436: 
mcimadamore@1436:         boolean errorFound;
mcimadamore@1436: 
mcimadamore@1436:         public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
mcimadamore@1436:             if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
mcimadamore@1436:                 errorFound = true;
mcimadamore@1436:             }
mcimadamore@1436:         }
mcimadamore@1436:     }
vromero@1482: 
mcimadamore@1436: }