jjg@67: /*
ohair@554:  * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
jjg@67:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@67:  *
jjg@67:  * This code is free software; you can redistribute it and/or modify it
jjg@67:  * under the terms of the GNU General Public License version 2 only, as
jjg@67:  * published by the Free Software Foundation.
jjg@67:  *
jjg@67:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@67:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@67:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@67:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@67:  * accompanied this code).
jjg@67:  *
jjg@67:  * You should have received a copy of the GNU General Public License version
jjg@67:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@67:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@67:  *
ohair@554:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554:  * or visit www.oracle.com if you need additional information or have any
ohair@554:  * questions.
jjg@67:  */
jjg@67: 
jjg@67: /*
jjg@67:  * @test 6716452
jjg@67:  * @summary need a method to get an index of an attribute
jjg@67:  */
jjg@67: 
jjg@67: import java.io.*;
jjg@67: import com.sun.tools.classfile.*;
jjg@67: 
jjg@67: public class T6716452 {
jjg@67:     public static void main(String[] args) throws Exception {
jjg@67:         new T6716452().run();
jjg@67:     }
jjg@67: 
jjg@67:     public void run() throws Exception {
jjg@67:         File javaFile = writeTestFile();
jjg@67:         File classFile = compileTestFile(javaFile);
jjg@67: 
jjg@67:         ClassFile cf = ClassFile.read(classFile);
jjg@67:         for (Method m: cf.methods) {
jjg@67:             test(cf, m);
jjg@67:         }
jjg@67: 
jjg@67:         if (errors > 0)
jjg@67:             throw new Exception(errors + " errors found");
jjg@67:     }
jjg@67: 
jjg@67:     void test(ClassFile cf, Method m) {
jjg@67:         test(cf, m, Attribute.Code, Code_attribute.class);
jjg@67:         test(cf, m, Attribute.Exceptions, Exceptions_attribute.class);
jjg@67:     }
jjg@67: 
jjg@67:     // test the result of Attributes.getIndex according to expectations
jjg@67:     // encoded in the method's name
jjg@67:     void test(ClassFile cf, Method m, String name, Class<?> c) {
jjg@67:         int index = m.attributes.getIndex(cf.constant_pool, name);
jjg@67:         try {
jjg@67:             String m_name = m.getName(cf.constant_pool);
jjg@67:             System.err.println("Method " + m_name + " name:" + name + " index:" + index + " class: " + c);
jjg@67:             boolean expect = (m_name.equals("<init>") && name.equals("Code"))
jjg@67:                 || (m_name.indexOf(name) != -1);
jjg@67:             boolean found = (index != -1);
jjg@67:             if (expect) {
jjg@67:                 if (found) {
jjg@67:                     Attribute attr = m.attributes.get(index);
jjg@67:                     if (!c.isAssignableFrom(attr.getClass())) {
jjg@67:                         error(m + ": unexpected attribute found,"
jjg@67:                               + " expected " + c.getName()
jjg@67:                               + " found " + attr.getClass().getName());
jjg@67:                     }
jjg@67:                 } else {
jjg@67:                     error(m + ": expected attribute " + name + " not found");
jjg@67:                 }
jjg@67:             } else {
jjg@67:                 if (found) {
jjg@67:                     error(m + ": unexpected attribute " + name);
jjg@67:                 }
jjg@67:             }
jjg@67:         } catch (ConstantPoolException e) {
jjg@67:             error(m + ": " + e);
jjg@67:         }
jjg@67:     }
jjg@67: 
jjg@67:     File writeTestFile() throws IOException {
jjg@67:         File f = new File("Test.java");
jjg@67:         PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
jjg@67:         out.println("abstract class Test { ");
jjg@67:         out.println("  abstract void m();");
jjg@67:         out.println("  void m_Code() { }");
jjg@67:         out.println("  abstract void m_Exceptions() throws Exception;");
jjg@67:         out.println("  void m_Code_Exceptions() throws Exception { }");
jjg@67:         out.println("}");
jjg@67:         out.close();
jjg@67:         return f;
jjg@67:     }
jjg@67: 
jjg@67:     File compileTestFile(File f) {
jjg@67:         int rc = com.sun.tools.javac.Main.compile(new String[] { "-g", f.getPath() });
jjg@67:         if (rc != 0)
jjg@67:             throw new Error("compilation failed. rc=" + rc);
jjg@67:         String path = f.getPath();
jjg@67:         return new File(path.substring(0, path.length() - 5) + ".class");
jjg@67:     }
jjg@67: 
jjg@67:     void error(String msg) {
jjg@67:         System.err.println("error: " + msg);
jjg@67:         errors++;
jjg@67:     }
jjg@67: 
jjg@67:     int errors;
jjg@67: }