/*
* Copyright (c) 2008, 2015, 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.
*/
import java.io.*;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.net.URL;
import java.util.List;
import com.sun.tools.classfile.*;
/*
* @test NoTargetAnnotations
* @summary test that annotations with no Target meta type is emitted
* only once as declaration annotation
* @modules jdk.jdeps/com.sun.tools.classfile
*/
public class NoTargetAnnotations {
public static void main(String[] args) throws Exception {
new NoTargetAnnotations().run();
}
public void run() throws Exception {
ClassFile cf = getClassFile("NoTargetAnnotations$Test.class");
for (Field f : cf.fields) {
test(cf, f);
testDeclaration(cf, f);
}
for (Method m: cf.methods) {
test(cf, m);
testDeclaration(cf, m);
}
countAnnotations();
if (errors > 0)
throw new Exception(errors + " errors found");
System.out.println("PASSED");
}
ClassFile getClassFile(String name) throws IOException, ConstantPoolException {
URL url = getClass().getResource(name);
InputStream in = url.openStream();
try {
return ClassFile.read(in);
} finally {
in.close();
}
}
/************ Helper annotations counting methods ******************/
void test(ClassFile cf, Method m) {
test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
}
void test(ClassFile cf, Field m) {
test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
}
void testDeclaration(ClassFile cf, Method m) {
testDecl(cf, m, Attribute.RuntimeVisibleAnnotations, true);
testDecl(cf, m, Attribute.RuntimeInvisibleAnnotations, false);
}
void testDeclaration(ClassFile cf, Field m) {
testDecl(cf, m, Attribute.RuntimeVisibleAnnotations, true);
testDecl(cf, m, Attribute.RuntimeInvisibleAnnotations, false);
}
// test the result of Attributes.getIndex according to expectations
// encoded in the method's name
void test(ClassFile cf, Method m, String name, boolean visible) {
int index = m.attributes.getIndex(cf.constant_pool, name);
if (index != -1) {
Attribute attr = m.attributes.get(index);
assert attr instanceof RuntimeTypeAnnotations_attribute;
RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
all += tAttr.annotations.length;
if (visible)
visibles += tAttr.annotations.length;
else
invisibles += tAttr.annotations.length;
}
}
// test the result of Attributes.getIndex according to expectations
// encoded in the method's name
void test(ClassFile cf, Field m, String name, boolean visible) {
int index = m.attributes.getIndex(cf.constant_pool, name);
if (index != -1) {
Attribute attr = m.attributes.get(index);
assert attr instanceof RuntimeTypeAnnotations_attribute;
RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
all += tAttr.annotations.length;
if (visible)
visibles += tAttr.annotations.length;
else
invisibles += tAttr.annotations.length;
}
}
// test the result of Attributes.getIndex according to expectations
// encoded in the method's name
void testDecl(ClassFile cf, Method m, String name, boolean visible) {
int index = m.attributes.getIndex(cf.constant_pool, name);
if (index != -1) {
Attribute attr = m.attributes.get(index);
assert attr instanceof RuntimeAnnotations_attribute;
RuntimeAnnotations_attribute tAttr = (RuntimeAnnotations_attribute)attr;
this.declAnnotations += tAttr.annotations.length;
}
}
// test the result of Attributes.getIndex according to expectations
// encoded in the method's name
void testDecl(ClassFile cf, Field m, String name, boolean visible) {
int index = m.attributes.getIndex(cf.constant_pool, name);
if (index != -1) {
Attribute attr = m.attributes.get(index);
assert attr instanceof RuntimeAnnotations_attribute;
RuntimeAnnotations_attribute tAttr = (RuntimeAnnotations_attribute)attr;
this.declAnnotations += tAttr.annotations.length;
}
}
File compileTestFile(File f) {
int rc = com.sun.tools.javac.Main.compile(new String[] { "-XDTA:writer", "-g", f.getPath() });
if (rc != 0)
throw new Error("compilation failed. rc=" + rc);
String path = f.getPath();
return new File(path.substring(0, path.length() - 5) + ".class");
}
void countAnnotations() {
int expected_all = expected_visibles + expected_invisibles;
if (expected_all != all) {
errors++;
System.err.println("expected " + expected_all
+ " annotations but found " + all);
}
if (expected_visibles != visibles) {
errors++;
System.err.println("expected " + expected_visibles
+ " visibles annotations but found " + visibles);
}
if (expected_invisibles != invisibles) {
errors++;
System.err.println("expected " + expected_invisibles
+ " invisibles annotations but found " + invisibles);
}
if (expected_decl != declAnnotations) {
errors++;
System.err.println("expected " + expected_decl
+ " declaration annotations but found " + declAnnotations);
}
}
int errors;
int all;
int visibles;
int invisibles;
int declAnnotations;
/*********************** Test class *************************/
static int expected_invisibles = 0;
static int expected_visibles = 0;
static int expected_decl = 1;
static class Test {
@Retention(RetentionPolicy.RUNTIME)
@interface A {}
@A String method() {
return null;
}
}
}