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/*
* Copyright (c) 2010, 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 6996914 7020044
* @summary Diamond inference: problem when accessing protected constructor
* @run main T6996914a
*/
import com.sun.source.util.JavacTask;
import java.net.URI;
import java.util.Arrays;
import javax.tools.Diagnostic;
import javax.tools.DiagnosticListener;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.ToolProvider;
public class T6996914a {
enum PackageKind {
DEFAULT("", ""),
A("package a;", "import a.*;");
String pkgDecl;
String importDecl;
PackageKind(String pkgDecl, String importDecl) {
this.pkgDecl = pkgDecl;
this.importDecl = importDecl;
}
}
enum ConstructorKind {
PACKAGE(""),
PROTECTED("protected"),
PRIVATE("private"),
PUBLIC("public");
String mod;
ConstructorKind(String mod) {
this.mod = mod;
}
}
static class FooClass extends SimpleJavaFileObject {
final static String sourceStub =
"#P\n" +
"public class Foo<X> {\n" +
" #M Foo() {}\n" +
"}\n";
String source;
public FooClass(PackageKind pk, ConstructorKind ck) {
super(URI.create("myfo:/" + (pk != PackageKind.DEFAULT ? "a/Foo.java" : "Foo.java")),
JavaFileObject.Kind.SOURCE);
source = sourceStub.replace("#P", pk.pkgDecl).replace("#M", ck.mod);
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return source;
}
}
static class ClientClass extends SimpleJavaFileObject {
final static String sourceStub =
"#I\n" +
"class Test {\n" +
" Foo<String> fs = new Foo<>();\n" +
"}\n";
String source;
public ClientClass(PackageKind pk) {
super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
source = sourceStub.replace("#I", pk.importDecl);
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return source;
}
}
public static void main(String... args) throws Exception {
for (PackageKind pk : PackageKind.values()) {
for (ConstructorKind ck : ConstructorKind.values()) {
compileAndCheck(pk, ck);
}
}
}
static void compileAndCheck(PackageKind pk, ConstructorKind ck) throws Exception {
FooClass foo = new FooClass(pk, ck);
ClientClass client = new ClientClass(pk);
final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
ErrorListener el = new ErrorListener();
JavacTask ct = (JavacTask)tool.getTask(null, null, el,
null, null, Arrays.asList(foo, client));
ct.analyze();
if (el.errors > 0 == check(pk, ck)) {
String msg = el.errors > 0 ?
"Error compiling files" :
"No error when compiling files";
throw new AssertionError(msg + ": \n" + foo.source + "\n" + client.source);
}
}
static boolean check(PackageKind pk, ConstructorKind ck) {
switch (pk) {
case A: return ck == ConstructorKind.PUBLIC;
case DEFAULT: return ck != ConstructorKind.PRIVATE;
default: throw new AssertionError("Unknown package kind");
}
}
/**
* DiagnosticListener to count any errors that occur
*/
private static class ErrorListener implements DiagnosticListener<JavaFileObject> {
public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
switch (diagnostic.getKind()) {
case ERROR:
errors++;
}
}
int errors;
}
}
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