dhaliwalx / grok Goto Github PK

Grok is a simple and tiny javascript interpreter written in C++. I made it because I wanted to learn how Compiler works.

Declare variables:

var a = 10;

// or create strings
var b = 'grok';

// or create an array
var c = [ 1,2,4,6 ];

// or create objects
var d = {
  a : 100,
  b : {
    arr : [1,2,4,5]
  }
};

Write complex expressions like:

var sum = d.a + c[0] + c.length + d.b.arr[2];

Create functions:

function fib(n) {
    if (n == 0 || n == 1)
        return 0;
    else if (n == 2)
        return 1;

    return fib(n - 1) + fib(n - 2);
}

// call functions
console.log(fib(10)); // yup console object is supported

Call Array methods:

var arr = [ 1, 2, 3, 4, 5 ];
var squares = arr.map(function(element) {
            return element * element;
}); // squares == [ 1, 4, 9, 16, 25 ]

• Boost C++ Library sudo apt-get install libboost-all-dev
• GNU Readline Library sudo apt-get install libreadline6-dev
• pthread
• cmake sudo apt-get install cmake
• C++ compiler with C++14 support sudo apt-get install g++-5
• Ubuntu (not tested for other operating systems)

One step: cd grok && mkdir build && cd build && cmake .. && make -j4

Grok is currently in development stage. New features will be added slowly. It is just a free time project. I work on it whenever I am free. If you want to help, feel free to open pull requests or create issues. Please do star the project if you like it.

• switch case statements
• break, continue statements
• this may not work properly
• constructors