Vertis

Vertis is a simple toy interpreted language implemented in TypeScript/Deno. It supports variable declarations, arithmetic, mutable variables, object literals, nested objects, and null values.

Features

• Variable declaration (var)
• Mutable variables (var mut)
• Arithmetic operations (+, -, *, /, %)
• Object literals and nested objects
• Null and boolean values
• Simple REPL and file execution

Getting Started

Prerequisites

• Deno (for development)
• Node.js (for running via Node)

Installation

Clone the repository:

git clone https://github.com/KCSquid/virtis.git
cd virtis

Running

To execute a .vrt file:

deno run -A src/virtis.ts -f main.vrt

Or start the interactive shell:

deno run -A src/virtis.ts

Example

Below are some example Vertis programs (from main.vrt):

// Variable declaration and arithmetic
var x = 10;
var y = 20;
var sum = x + y;

// Mutable variable
var mut counter = 0;
counter = counter + 1;

// Object literals
var point = {
  x: 5,
  y: 7
};

// Nested objects and referencing variables
var foo = 42;
var obj = {
  a: 1,
  b: foo,
  nested: {
    c: true
  }
};

// Null values
var nothing = null;

Example Output

x       // { value: 10, type: "number" }
y       // { value: 20, type: "number" }
sum     // { value: 30, type: "number" }
counter // { value: 1, type: "number" }
point   // { kind: "ObjectLiteral", properties: [ ... ] }
foo     // { value: 42, type: "number" }
obj     // { kind: "ObjectLiteral", properties: [ ... ] }
nothing // { type: "null", value: null }

License

MIT