GLaDOS-2023

Features

• Basic scheme interpreter
• Written in Haskell
• Strict testing policy
  • Continuous integration running tests on every Pull Request
  • Over 100 Unit tests and close to 50% coverage
  • Close to 20 Integration tests
• Abstract Syntax Tree and Concrete Parse Tree implementation
• Standard input reading
• An ABNF syntax description
• An ABNF syntax description for the "compiled" code
• Infix notations for operators and custom functions

Supported Scheme Features

• Atoms
  • Signed Integers
  • Symbol
• Boolean type
• Function execution
• Function definition
  • Named Functions
  • Lambda Functions
• Variable definition
• Conditional expressions

Builtin Functions

In addition to these basic features, our interpreter also implements the following builtins :

• println
• print
• div
• mod
• *
• -
• +
• <
• <=
• >
• >=
• eq?

Repl mode

You can also enter into an interactive session by running :

./glados -i

or

./glados --interactive

Install Dependencies

Install cabal by installing GHCUP or another method described on the Haskell Website.

cabal update;

Also install the following VSCode/Codium/CodeOSS extensions:

hoovercj.haskell-linter
justusadam.language-haskell
haskell.haskell

Run project

cabal run glados -- file.scm;

or

make ARGS="file.scm"

Running the tests

In order to see coloured output and no coverage when running the tests, please run the tests with one of the following commands:

cabal run test

make test

Build Guide

Bonus ideas :

• Fully featured REPL
• Exception stack tracing
• Exception line tracing