The powerful JavaScript runtime, implemented from scratch in C#.

Implementation

The JavaScript engine consists on a pipeline composed by a Lexer, Parser, Resolver & Interpreter.

Implemented Features

• Tokens & Lexing
• Abstract Syntax Tree
• Recursive Descent Parsing
• Prefix & Infix Expressions
• Runtime Representation of Objects
• Interpreting Code using the Visitor Design Pattern
• Lexical Scope
• Environment Chains for Storing variables
• Control Flow
• Functions with Parameters
• Closures
• Static Variable Resolution & Error Detection
• Classes
• Constructors
• Fields
• Methods
• Inheritance

Pending Features

• Access Modifiers
• ES6 Modules / Imports
• Promises
• Events
• Async / Await
• File System Native API
• Network Native API

Usage

• Running script file

cd ./Source/Engine/
dotnet run ./Examples/test.js

• REPL

cd ./Source/Engine/
dotnet run

Examples

Feel free to peek (and run) several scripts showing off several implemented features like...

1. Classes
2. Recursion
3. Closures

Caution

This runtime is not yet production ready.