| /* |
| * Copyright (c) 2012, 2013, 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 8002099 8006694 |
| * @summary Add support for intersection types in cast expression |
| * temporarily workaround combo tests are causing time out in several platforms |
| * @library ../../lib |
| * @build JavacTestingAbstractThreadedTest |
| * @run main/othervm/timeout=360 IntersectionTypeCastTest |
| */ |
| |
| // use /othervm to avoid jtreg timeout issues (CODETOOLS-7900047) |
| // see JDK-8006746 |
| |
| import java.net.URI; |
| import java.util.Arrays; |
| import javax.tools.Diagnostic; |
| import javax.tools.JavaCompiler; |
| import javax.tools.JavaFileObject; |
| import javax.tools.SimpleJavaFileObject; |
| import javax.tools.ToolProvider; |
| |
| import com.sun.source.util.JavacTask; |
| import com.sun.tools.javac.util.List; |
| import com.sun.tools.javac.util.ListBuffer; |
| |
| public class IntersectionTypeCastTest |
| extends JavacTestingAbstractThreadedTest |
| implements Runnable { |
| |
| interface Type { |
| boolean subtypeOf(Type that); |
| String asString(); |
| boolean isClass(); |
| boolean isInterface(); |
| } |
| |
| enum InterfaceKind implements Type { |
| A("interface A { }\n", "A", null), |
| B("interface B { }\n", "B", null), |
| C("interface C extends A { }\n", "C", A); |
| |
| String declStr; |
| String typeStr; |
| InterfaceKind superInterface; |
| |
| InterfaceKind(String declStr, String typeStr, |
| InterfaceKind superInterface) { |
| this.declStr = declStr; |
| this.typeStr = typeStr; |
| this.superInterface = superInterface; |
| } |
| |
| @Override |
| public boolean subtypeOf(Type that) { |
| return this == that || superInterface == that || |
| that == ClassKind.OBJECT; |
| } |
| |
| @Override |
| public String asString() { |
| return typeStr; |
| } |
| |
| @Override |
| public boolean isClass() { |
| return false; |
| } |
| |
| @Override |
| public boolean isInterface() { |
| return true; |
| } |
| } |
| |
| enum ClassKind implements Type { |
| OBJECT(null, "Object"), |
| CA("#M class CA implements A { }\n", "CA", |
| InterfaceKind.A), |
| CB("#M class CB implements B { }\n", "CB", |
| InterfaceKind.B), |
| CAB("#M class CAB implements A, B { }\n", "CAB", |
| InterfaceKind.A, InterfaceKind.B), |
| CC("#M class CC implements C { }\n", "CC", |
| InterfaceKind.C, InterfaceKind.A), |
| CCA("#M class CCA implements C, A { }\n", "CCA", |
| InterfaceKind.C, InterfaceKind.A), |
| CCB("#M class CCB implements C, B { }\n", "CCB", |
| InterfaceKind.C, InterfaceKind.A, InterfaceKind.B), |
| CCAB("#M class CCAB implements C, A, B { }\n", "CCAB", |
| InterfaceKind.C, InterfaceKind.A, InterfaceKind.B); |
| |
| String declTemplate; |
| String typeStr; |
| List<InterfaceKind> superInterfaces; |
| |
| ClassKind(String declTemplate, String typeStr, |
| InterfaceKind... superInterfaces) { |
| this.declTemplate = declTemplate; |
| this.typeStr = typeStr; |
| this.superInterfaces = List.from(superInterfaces); |
| } |
| |
| String getDecl(ModifierKind mod) { |
| return declTemplate != null ? |
| declTemplate.replaceAll("#M", mod.modStr) : |
| ""; |
| } |
| |
| @Override |
| public boolean subtypeOf(Type that) { |
| return this == that || superInterfaces.contains(that) || |
| that == OBJECT; |
| } |
| |
| @Override |
| public String asString() { |
| return typeStr; |
| } |
| |
| @Override |
| public boolean isClass() { |
| return true; |
| } |
| |
| @Override |
| public boolean isInterface() { |
| return false; |
| } |
| } |
| |
| enum ModifierKind { |
| NONE(""), |
| FINAL("final"); |
| |
| String modStr; |
| |
| ModifierKind(String modStr) { |
| this.modStr = modStr; |
| } |
| } |
| |
| enum CastKind { |
| CLASS("(#C)", 0), |
| INTERFACE("(#I0)", 1), |
| INTERSECTION2("(#C & #I0)", 1), |
| INTERSECTION3("(#C & #I0 & #I1)", 2); |
| //INTERSECTION4("(#C & #I0 & #I1 & #I2)", 3); |
| |
| String castTemplate; |
| int interfaceBounds; |
| |
| CastKind(String castTemplate, int interfaceBounds) { |
| this.castTemplate = castTemplate; |
| this.interfaceBounds = interfaceBounds; |
| } |
| } |
| |
| static class CastInfo { |
| CastKind kind; |
| Type[] types; |
| |
| CastInfo(CastKind kind, Type... types) { |
| this.kind = kind; |
| this.types = types; |
| } |
| |
| String getCast() { |
| String temp = kind.castTemplate.replaceAll("#C", |
| types[0].asString()); |
| for (int i = 0; i < kind.interfaceBounds ; i++) { |
| temp = temp.replace(String.format("#I%d", i), |
| types[i + 1].asString()); |
| } |
| return temp; |
| } |
| |
| boolean hasDuplicateTypes() { |
| for (int i = 0 ; i < types.length ; i++) { |
| for (int j = 0 ; j < types.length ; j++) { |
| if (i != j && types[i] == types[j]) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| boolean compatibleWith(ModifierKind mod, CastInfo that) { |
| for (Type t1 : types) { |
| for (Type t2 : that.types) { |
| boolean compat = |
| t1.subtypeOf(t2) || |
| t2.subtypeOf(t1) || |
| (t1.isInterface() && t2.isInterface()) || //side-cast (1) |
| (mod == ModifierKind.NONE && |
| (t1.isInterface() != t2.isInterface())); //side-cast (2) |
| if (!compat) return false; |
| } |
| } |
| return true; |
| } |
| } |
| |
| public static void main(String... args) throws Exception { |
| for (ModifierKind mod : ModifierKind.values()) { |
| for (CastInfo cast1 : allCastInfo()) { |
| for (CastInfo cast2 : allCastInfo()) { |
| pool.execute( |
| new IntersectionTypeCastTest(mod, cast1, cast2)); |
| } |
| } |
| } |
| checkAfterExec(); |
| } |
| |
| static List<CastInfo> allCastInfo() { |
| ListBuffer<CastInfo> buf = new ListBuffer<>(); |
| for (CastKind kind : CastKind.values()) { |
| for (ClassKind clazz : ClassKind.values()) { |
| if (kind == CastKind.INTERFACE && clazz != ClassKind.OBJECT) { |
| continue; |
| } else if (kind.interfaceBounds == 0) { |
| buf.append(new CastInfo(kind, clazz)); |
| continue; |
| } else { |
| for (InterfaceKind intf1 : InterfaceKind.values()) { |
| if (kind.interfaceBounds == 1) { |
| buf.append(new CastInfo(kind, clazz, intf1)); |
| continue; |
| } else { |
| for (InterfaceKind intf2 : InterfaceKind.values()) { |
| if (kind.interfaceBounds == 2) { |
| buf.append( |
| new CastInfo(kind, clazz, intf1, intf2)); |
| continue; |
| } else { |
| for (InterfaceKind intf3 : InterfaceKind.values()) { |
| buf.append( |
| new CastInfo(kind, clazz, intf1, |
| intf2, intf3)); |
| continue; |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| return buf.toList(); |
| } |
| |
| ModifierKind mod; |
| CastInfo cast1, cast2; |
| JavaSource source; |
| DiagnosticChecker diagChecker; |
| |
| IntersectionTypeCastTest(ModifierKind mod, CastInfo cast1, CastInfo cast2) { |
| this.mod = mod; |
| this.cast1 = cast1; |
| this.cast2 = cast2; |
| this.source = new JavaSource(); |
| this.diagChecker = new DiagnosticChecker(); |
| } |
| |
| @Override |
| public void run() { |
| final JavaCompiler tool = ToolProvider.getSystemJavaCompiler(); |
| |
| JavacTask ct = (JavacTask)tool.getTask(null, fm.get(), diagChecker, |
| null, null, Arrays.asList(source)); |
| try { |
| ct.analyze(); |
| } catch (Throwable ex) { |
| throw new AssertionError("Error thrown when compiling the following code:\n" + |
| source.getCharContent(true)); |
| } |
| check(); |
| } |
| |
| class JavaSource extends SimpleJavaFileObject { |
| |
| String bodyTemplate = "class Test {\n" + |
| " void test() {\n" + |
| " Object o = #C1#C2null;\n" + |
| " } }"; |
| |
| String source = ""; |
| |
| public JavaSource() { |
| super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
| for (ClassKind ck : ClassKind.values()) { |
| source += ck.getDecl(mod); |
| } |
| for (InterfaceKind ik : InterfaceKind.values()) { |
| source += ik.declStr; |
| } |
| source += bodyTemplate.replaceAll("#C1", cast1.getCast()). |
| replaceAll("#C2", cast2.getCast()); |
| } |
| |
| @Override |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
| return source; |
| } |
| } |
| |
| void check() { |
| checkCount.incrementAndGet(); |
| |
| boolean errorExpected = cast1.hasDuplicateTypes() || |
| cast2.hasDuplicateTypes(); |
| |
| errorExpected |= !cast2.compatibleWith(mod, cast1); |
| |
| if (errorExpected != diagChecker.errorFound) { |
| throw new Error("invalid diagnostics for source:\n" + |
| source.getCharContent(true) + |
| "\nFound error: " + diagChecker.errorFound + |
| "\nExpected error: " + errorExpected); |
| } |
| } |
| |
| 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; |
| } |
| } |
| } |
| |
| } |