POC: Generate method bodies from their base64 encoded names.

For example, given an interface like this:

package dev.vrba.bullshit.example;

/**
 * As = is not a valid Java identifier, use _ instead for padding
 */
public interface ExampleInterface {
    /**
     * System.out.println("Hello base64");
     */
    void U3lzdGVtLm91dC5wcmludGxuKCJIZWxsbyBiYXNlNjQiKTs_();

    /**
     * return arg0 + arg1;
     */
    int cmV0dXJuIGFyZzAgKyBhcmcxOw__(int arg0, int arg1);

    /**
     * Factorial goes brrrr
     *
     * if (arg0 <= 0) return 1;
     * else return arg0 * __self__(arg0 - 1);
     */
    int aWYgKGFyZzAgPD0gMCkgcmV0dXJuIDE7IAplbHNlIHJldHVybiBhcmcwICogX19zZWxmX18oYXJnMCAtIDEpOw__(int arg0);

    /**
     * Fibonacci
     *
     * if (arg0 <= 1) return arg0;
     * return __self__(arg0 - 1) + __self__(arg0 - 2);
     */
    int aWYgKGFyZzAgPD0gMSkgcmV0dXJuIGFyZzA7IApyZXR1cm4gX19zZWxmX18oYXJnMCAtIDEpICsgX19zZWxmX18oYXJnMCAtIDIpOw__(int arg0);
}

you can automatically generate its implementation, where all method bodies are generated from the method name. All you need to do is give the Base64ImplementationCreator a class name (usign the .class or .getClass()), and reflection goes brrrr. It even can handle arguments and returning the value.

package dev.vrba.bullshit.example;

import dev.vrba.bullshit.Base64ImplementationCreator;

public class ExampleProgram {

    public static void main(String[] args) {
        ExampleInterface implementation = Base64ImplementationCreator.makeImplementation(ExampleInterface.class);

        // Hello world
        implementation.U3lzdGVtLm91dC5wcmludGxuKCJIZWxsbyBiYXNlNjQiKTs_();

        // 1 + 2 = 3
        int three = implementation.cmV0dXJuIGFyZzAgKyBhcmcxOw__(1, 2);

        System.out.println("1 + 2 = " + three);

        // 5!
        int factorialOfFive = implementation.aWYgKGFyZzAgPD0gMCkgcmV0dXJuIDE7IAplbHNlIHJldHVybiBhcmcwICogX19zZWxmX18oYXJnMCAtIDEpOw__(5);

        System.out.println("5! = " + factorialOfFive);

        // fib(5)
        int fifthFibonacciNumber = implementation.aWYgKGFyZzAgPD0gMSkgcmV0dXJuIGFyZzA7IApyZXR1cm4gX19zZWxmX18oYXJnMCAtIDEpICsgX19zZWxmX18oYXJnMCAtIDIpOw__(5);

        System.out.println("fib(5) = " + fifthFibonacciNumber);
    }
}

For recursive methods use __self__ or magic 🔮 to reference the generated method.

That's it, so much wasted time on this 💩