/*

 * Copyright (c) 2011, 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 7043922

 * @summary Regression: internal compiler error for nested anonymous inner class featuring varargs constructor

 */

import com.sun.source.util.JavacTask;

import com.sun.tools.javac.api.JavacTool;

import com.sun.tools.javac.util.List;

import java.net.URI;

import java.util.Arrays;

import java.util.Locale;

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 T7043922 {

    ClassKind[] classKinds;

    ConstructorKind[] constructorKinds;

    T7043922(ClassKind[] classKinds, ConstructorKind[] constructorKinds) {

        this.classKinds = classKinds;

        this.constructorKinds = constructorKinds;

    }

    void compileAndCheck() throws Exception {

        JavaSource source = new JavaSource();

        ErrorChecker ec = new ErrorChecker();

        JavacTask ct = (JavacTask)tool.getTask(null, fm, ec,

                null, null, Arrays.asList(source));

        ct.analyze();

        if (ec.errorFound) {

            throw new Error("invalid diagnostics for source:\n" +

                    source.getCharContent(true) +

                    "\nCompiler diagnostics:\n" + ec.printDiags());

        }

    }

    class JavaSource extends SimpleJavaFileObject {

        static final String source_template = "#C0 A0 { #K0 }\n" +

                                              "#C1 A1 { #K1 }\n" +

                                              "#C2 A2 { #K2 }\n" +

                                              "class D {\n" +

                                              "   void test() {\n" +

                                              "      new A0(#V0) {\n" +

                                              "         void test() {\n" +

                                              "            new A1(#V1) {\n" +

                                              "               void test() {\n" +

                                              "                   new A2(#V2) {};\n" +

                                              "               }\n" +

                                              "            };\n" +

                                              "         }\n" +

                                              "      };\n" +

                                              "   }\n" +

                                              "}\n";

        String source;

        public JavaSource() {

            super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);

            source = source_template;

            for (int i = 0; i < 3; i++) {

                source = source.replaceAll("#C" + i, classKinds[i].classKind).

                    replaceAll("#K" + i, classKinds[i].getConstructor("A" + i, constructorKinds[i])).

                    replaceAll("#V" + i, constructorKinds[i].constrArgs);

            }

        }

        @Override

        public CharSequence getCharContent(boolean ignoreEncodingErrors) {

            return source;

        }

    }

    /** global decls ***/

    enum ConstructorKind {

        DEFAULT("", ""),

        FIXED_ARITY("String s", "\"\""),

        VARIABLE_ARITY("String... ss", "\"\",\"\"");

        String constrParam;

        String constrArgs;

        private ConstructorKind(String constrParam, String constrArgs) {

            this.constrParam = constrParam;

            this.constrArgs = constrArgs;

        }

    }

    enum ClassKind {

        ABSTRACT("abstract class"),

        CLASS("class"),

        INTERFACE("interface");

        String classKind;

        private ClassKind(String classKind) {

            this.classKind = classKind;

        }

        boolean isConstructorOk(ConstructorKind ck) {

            return this != INTERFACE ||

                    ck == ConstructorKind.DEFAULT;

        }

        String getConstructor(String className, ConstructorKind ck) {

            return this == INTERFACE ?

                "" :

                (className + "(" + ck.constrParam + ") {}");

        }

    }

    // Create a single file manager and JavaCompiler tool

    // and reuse them for each compile to save time.

    static final StandardJavaFileManager fm = JavacTool.create().getStandardFileManager(null, null, null);

    static final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();

    public static void main(String... args) throws Exception {

        for (ClassKind classKind1 : ClassKind.values()) {

            for (ConstructorKind constrKind1 : ConstructorKind.values()) {

                if (!classKind1.isConstructorOk(constrKind1)) continue;

                for (ClassKind classKind2 : ClassKind.values()) {

                    for (ConstructorKind constrKind2 : ConstructorKind.values()) {

                        if (!classKind2.isConstructorOk(constrKind2)) continue;

                        for (ClassKind classKind3 : ClassKind.values()) {

                            for (ConstructorKind constrKind3 : ConstructorKind.values()) {

                                if (!classKind3.isConstructorOk(constrKind3)) continue;

                                new T7043922(new ClassKind[] { classKind1, classKind2, classKind3 },

                                        new ConstructorKind[] { constrKind1, constrKind2, constrKind3 }).compileAndCheck();

                            }

                        }

                    }

                }

            }

        }

    }

    static class ErrorChecker implements javax.tools.DiagnosticListener<JavaFileObject> {

        boolean errorFound;

        List<String> errDiags = List.nil();

        public void report(Diagnostic<? extends JavaFileObject> diagnostic) {

            if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {

                errDiags = errDiags.append(diagnostic.getMessage(Locale.getDefault()));

                errorFound = true;

            }

        }

        String printDiags() {

            StringBuilder buf = new StringBuilder();

            for (String s : errDiags) {

                buf.append(s);

                buf.append("\n");

            }

            return buf.toString();

        }

    }

}