SAD | Custom Programming Language

Programming Language with Compiler | Principles of Programming Final Project

SAD is a custom programming language implemented entirely in Smalltalk and compiling to C. The project explores the core principles of designing a programming language.

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Project Overview

SAD is a programming language I built for my Principles of Programming class. It's written entirely in Smalltalk, making it a purely object-oriented compiler.

It's a solid example of systems thinking, programming language design, and object-oriented architecture in practice.

Features:

Custom syntax and grammar defined using Ohm.
Parser, interpreter, and code generator for executing SAD programs.
Fully object-oriented implementation, with nearly every method under 8 lines.
A pretty printer that formats code with a single click.
A semantic analyzer for catching errors before they run.
If statements, variables, functions, procedures, recursion, and loops.

Language Showcase

SAD Code

This is the code that you would write in my custom language.

C code

This is the generated C code from the SAD code.