ESOlang

This is a programming language made for fun as well to practice more the GO programming language. I call it Esoteric programming language but it actually is not, is pretty much like functional javascript with support for first class functions. Currectly there is no variables, only constants.

Features

The language currently supports

• string data type
• int data type
• functions data type (including first class)
• array data structure and method to pop, push and get length
• hashmap data structure
• conditionals
• closures

Installation

Prerequisites:

• Having GO version 1.19 already installed
• Having git already installed.

Run the following commands

• git clone https://github.com/carepollo/esolang.git
• cd esolang
• go build main.go
• This step depends on your OS. On Linux or MacOS should be: ./esolang
• On Windows maybe is going through folder and open the .exe

How to use

Hello world

puts("Hello World!");

Variables

let message = "Hello World!";
let number = 1;

Arrays

let array = [1, 2, 3];
array[0] = 2;
push(array, 1); // add value
rest(array); // elements starting by index 1
len(array); // amount of elements

HashMaps

let hashmap = {"a": 1, "b": 2};
hashmap["a"] = 2;

Functions

let myfunc = fn(a, b){ a + b }
let afunc = fn(){ return myfunc }
afunc()()

Supports implicit and explicit return

Conditionals

if (true) {
    puts(1);
}
if (false) {
    puts("nothing");
} else {
    puts("something");
}

Sidenote

In case you wonder why is called 'esolang' to begin with, is because it all started from an idea that was discard afterwards, it was merely shitpost so it not worth mentioning.

Benchmark

You can make a simple comparison between the interpreter and compiler of this language running the following commands.

go build -o fibonacci ./benchmark
./fibonacci -engine=eval && ./fibonacci -engine=vm

Here is the output on my Machine (the bottom is the compiled one)