> For the complete documentation index, see [llms.txt](https://frost-lang.gitbook.io/frost/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://frost-lang.gitbook.io/frost/developer-manual/overview.md).

# Project Overview

The Frost compiler, written in Haskell, is organized into a modular architecture that emphasizes clean separation of concerns and maintainable code. The project structure follows a logical organization that supports the complete compilation pipeline from parsing to code generation.

## Core Components

* **Abstract Syntax Tree (AST)**
  * Located in `lib/Ast/`
  * Handles parsing and syntax representation
  * Includes preprocessor directives and type system
* **Code Generation**
  * Located in `lib/Codegen/`
  * Transforms AST into LLVM IR
  * Manages expression generation and control flow

## Directory Structure

* `app/`: Contains the main compiler entry point
* `lib/`: Houses the core compiler implementation
  * `Ast/Parser/`: Syntax parsing and AST construction
  * `Codegen/ExprGen/`: Expression and control flow generation
  * `Shared/`: Common utilities and helper functions
* `examples/`: Collection of Frost programs showcasing language features
  * `std/`: Standard library implementations
  * Various demonstration programs (donut.ff, mandelbrot.ff, etc.)
* `test/`: Comprehensive test suite
  * Unit tests for parser components
  * Integration tests for code generation
  * Specification tests for language features

## Build System

* Uses Cabal for package management
* Makefile for common development tasks
* Continuous integration scripts in `scripts/`

## Documentation

* `docs/`: Comprehensive documentation
  * User manual for language features
  * Developer documentation for compiler internals
  * Syntax specifications and examples

The project follows a test-driven development approach with extensive unit testing and continuous integration practices to maintain code quality and reliability.


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