!636

!700 // ctex

!1000346 // "case" as a variable name

!quicknew

!standard functions

!include #2000470 // class _x16

main {

  psvm {

    Class solver = compileAndLoadMainClass("#695");

    Object case = call(solver, "parse", "#1000386");

    call(solver, "calculate", case);

    String in = "5*5";

    String result = (String) call(case, "processIn", in);

    System.out.println(in);

    System.out.println(result);

  }

  static Object call(Class c, String method, Object... args) ctex {

    Method m = findStaticMethod(c, method, args);

    m.setAccessible(true);

    return m.invoke(null, args);

  }

  static Object call(Object o, String method, Object... args) ctex {

    Method m = findMethod(o, method, args);

    m.setAccessible(true);

    return m.invoke(o, args);

  }

  static Method findMethod(Object o, String method, Object[] args) {

    // TODO: go to superclasses too

    for (Method m : o.getClass().getDeclaredMethods())

      if (m.getName().equals(method) && (m.getModifiers() & Modifier.STATIC) == 0 && m.getParameterTypes().length == args.length) // TODO: multicast

        return m;

    throw new RuntimeException("Method '" + method + "' with " + args.length + " parameter(s) not found in " + o.getClass().getName());

  }

  static Method findStaticMethod(Class<?> c, String method, Object[] args) {

    for (Method m : c.getDeclaredMethods())

      if (m.getName().equals(method) && (m.getModifiers() & Modifier.STATIC) != 0 && m.getParameterTypes().length == args.length) // TODO: multicast

        return m;

    throw new RuntimeException("Static method '" + method + "' with " + args.length + " parameter(s) not found in " + c.getName());

  }

  // compile JavaX source and load main class

  static Class<?> compileAndLoadMainClass(String src) tex {

    if (isSnippetID(src)) src = loadSnippet(src);

    File srcDir = _x16.TempDirMaker_make();

    File classesDir = _x16.TempDirMaker_make();

    _x16.saveTextFile(new File(srcDir, "main.java").getPath(), src);

    new List<File> libraries;

    File transpiledDir = _x16.topLevelTranslate(srcDir, libraries);

    String javacOutput = _x16.compileJava(transpiledDir, libraries, classesDir);

    System.out.println(javacOutput);

    URL[] urls = {classesDir.toURI().toURL()};

    // make class loader

    URLClassLoader classLoader = new URLClassLoader(urls);

    // load main class

    Class<?> mainClass = classLoader.loadClass("main");

    return mainClass;

  }

}