HalEngine: A Programming Language

This paper represents HalEngine, a programming language which is designed to show how a compact design can still support practical programming tasks. The language is built using Python and LLVM and including features like variables, booleans, strings, basic math functions, conditionals, loops, functions with return-type inference, simple structures, and a minimal standard library. The compiler follows a straightforward architecture with a lexer, parser, abstract syntax tree, environment model, and LLVM IR generator. Despite its simplicity, HalEngine can compile and execute real programs while keeping the implementation easy to understand. Outlining the core design and the minimal runtime required to support the language, this language can be used to demonstrate how a functional compiler can be created with a small and focused feature set.