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/*
* 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.
*/
/*
* @test 6716452
* @summary need a method to get an index of an attribute
* @modules jdk.jdeps/com.sun.tools.classfile
*/
import java.io.*;
import com.sun.tools.classfile.*;
public class T6716452 {
public static void main(String[] args) throws Exception {
new T6716452().run();
}
public void run() throws Exception {
File javaFile = writeTestFile();
File classFile = compileTestFile(javaFile);
ClassFile cf = ClassFile.read(classFile);
for (Method m: cf.methods) {
test(cf, m);
}
if (errors > 0)
throw new Exception(errors + " errors found");
}
void test(ClassFile cf, Method m) {
test(cf, m, Attribute.Code, Code_attribute.class);
test(cf, m, Attribute.Exceptions, Exceptions_attribute.class);
}
// test the result of Attributes.getIndex according to expectations
// encoded in the method's name
void test(ClassFile cf, Method m, String name, Class<?> c) {
int index = m.attributes.getIndex(cf.constant_pool, name);
try {
String m_name = m.getName(cf.constant_pool);
System.err.println("Method " + m_name + " name:" + name + " index:" + index + " class: " + c);
boolean expect = (m_name.equals("") && name.equals("Code"))
|| (m_name.indexOf(name) != -1);
boolean found = (index != -1);
if (expect) {
if (found) {
Attribute attr = m.attributes.get(index);
if (!c.isAssignableFrom(attr.getClass())) {
error(m + ": unexpected attribute found,"
+ " expected " + c.getName()
+ " found " + attr.getClass().getName());
}
} else {
error(m + ": expected attribute " + name + " not found");
}
} else {
if (found) {
error(m + ": unexpected attribute " + name);
}
}
} catch (ConstantPoolException e) {
error(m + ": " + e);
}
}
File writeTestFile() throws IOException {
File f = new File("Test.java");
PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
out.println("abstract class Test { ");
out.println(" abstract void m();");
out.println(" void m_Code() { }");
out.println(" abstract void m_Exceptions() throws Exception;");
out.println(" void m_Code_Exceptions() throws Exception { }");
out.println("}");
out.close();
return f;
}
File compileTestFile(File f) {
int rc = com.sun.tools.javac.Main.compile(new String[] { "-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 error(String msg) {
System.err.println("error: " + msg);
errors++;
}
int errors;
}
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet)
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