/**

  * Back 2 Browser Bytecode Translator

  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  *

  * This program is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, version 2 of the License.

  *

  * This program 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 for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with this program. Look for COPYING file in the top folder.

  * If not, see http://opensource.org/licenses/GPL-2.0.

  */

 package org.apidesign.bck2brwsr.vmtest.impl;

 import java.lang.reflect.Method;

 import java.util.Map;

 import java.util.WeakHashMap;

 import javax.script.Invocable;

 import org.apidesign.bck2brwsr.launcher.MethodInvocation;

 import org.testng.ITest;

 import org.testng.annotations.Test;

 /**

  *

  * @author Jaroslav Tulach <jtulach@netbeans.org>

  */

 public final class Bck2BrwsrCase implements ITest {

     private final Method m;

     private final Launchers l;

     private final int type;

     Object value;

     private Invocable code;

     private CharSequence codeSeq;

     private static final Map<Class, Object[]> compiled = new WeakHashMap<>();

     private Object inst;

     Bck2BrwsrCase(Method m, int type, Launchers l) {

         this.l = l;

         this.m = m;

         this.type = type;

     }

     @Test(groups = "run")

     public void executeCode() throws Throwable {

         if (type == 1) {

             MethodInvocation c = l.addMethod(m.getDeclaringClass(), m.getName(), false);

             value = c.toString();

         } else if (type == 2) {

             MethodInvocation c = l.addMethod(m.getDeclaringClass(), m.getName(), true);

             value = c.toString();

         } else {

             value = m.invoke(m.getDeclaringClass().newInstance());

         }

     }

     @Override

     public String getTestName() {

         return m.getName() + "[" + typeName() + "]";

     }

     final String typeName() {

         switch (type) {

             case 0:

                 return "Java";

             case 1:

                 return "JavaScript";

             case 2:

                 return "Browser";

             default:

                 return "Unknown type " + type;

         }

     }

     private static String computeSignature(Method m) {

         StringBuilder sb = new StringBuilder();

         appendType(sb, m.getReturnType());

         for (Class<?> c : m.getParameterTypes()) {

             appendType(sb, c);

         }

         return sb.toString();

     }

     private static void appendType(StringBuilder sb, Class<?> t) {

         if (t == null) {

             sb.append('V');

             return;

         }

         if (t.isPrimitive()) {

             int ch = -1;

             if (t == int.class) {

                 ch = 'I';

             }

             if (t == short.class) {

                 ch = 'S';

             }

             if (t == byte.class) {

                 ch = 'B';

             }

             if (t == boolean.class) {

                 ch = 'Z';

             }

             if (t == long.class) {

                 ch = 'J';

             }

             if (t == float.class) {

                 ch = 'F';

             }

             if (t == double.class) {

                 ch = 'D';

             }

             assert ch != -1 : "Unknown primitive type " + t;

             sb.append((char) ch);

             return;

         }

         if (t.isArray()) {

             sb.append("_3");

             appendType(sb, t.getComponentType());

             return;

         }

         sb.append('L');

         sb.append(t.getName().replace('.', '_'));

         sb.append("_2");

     }

 }