About

Waffle is a dynamic programming language. With minimal data types and syntax.

Caution

⚠️ This is a toy language. It's not even optimised and cannot be used in production.

Installation

1. Clone the repo.
2. Download and install go compiler.
3. cd into the repo and run go build main.go
4. Once the build process completes just run the binary.

Syntax

Declarations

Waffle doesn't support constants. Every variable is declared with let keyword.

let age = 1;
let name = "Tuna";
puts(age); // 1
puts(name); // Tuna

name = "Bob";
puts(name); // Bob

Arrays

Arrays are just collection of values (values can be of any type).

let arr = [1, 2, "Hello World"]
puts(arr); // [1, 2, "Hello World"]
puts(arr[0]); // 1

Strings

Everything inside "" is considered a string.

let name = "Bob";
puts(name); // Bob

Booleans

puts(true); // true
puts(false): // false

Numbers

let a = 1;
let b = 2;
puts(a / b) // 0

let a = 1.1;
let b = 2;
puts(a / b); // 0.55

Objects

Objects supports integers, booleans and strings as keys.

let myHash = {
  "name": "Jimmy",
  "age": 72,
  "band": "Led Zeppelin",
  99: "integer",
  true: "true"
};
puts(myHash["name"]); // Jimmy

let key = "age";
myHash[key] = 32;
puts(myHash[key]); // 32

Equality

puts(1 == 1); // true
puts(1 == 2); // false

Conditionals

Conditionals works the same way as they do in other programming languages. if else is not supported rather the else block can have as many if blocks inside it.

let x = 2;
if (x > 10) { 
  puts("everything okay!");
} else {
  if (x < 5) {
    puts("x is too low!"); 
  } else {
    puts("x is low!")
  }
}

Functions

Functions are first class functions in Waffle.

let func = fn(x, y) {
  return x + y;
}
puts(func(1, 2)) // 3

fn() {
  puts("hello world")
}() // "hello world"

let function = fn() {
  return fn(x, y) { return x > y; };
}

let checkGreater = function();
checkGreater(1, 2); // false

Builtin functions

Waffle has some basic builtin functions.

let a = [1, 2, 3, 4];
puts(len(a)); // 4
puts(first(a)); // 1
puts(last(a)); // 4
puts(rest(a)); // [2, 3, 4]

let a = push(arr, 5);
puts(arr); // [1, 2, 3, 4, 5]

let name = "Bob";
puts(len(name)); // 3