Casa

Casa is a statically typed, stack-based programming language for Linux.

"Hello, world!\n" print

Requirements

• Linux on x86-64
• GNU assembler (as) and a C compiler driver (cc)
  • For example, on Ubuntu, install the binutils and build-essential packages.

Install

Clone the repository and download the compiler and formatter:

git clone https://github.com/frendsick/casa.git
cd casa
./install.sh

You can also run the installer directly:

curl -sSL https://raw.githubusercontent.com/frendsick/casa/main/install.sh | sh

Run a program

Compile and run the hello-world example:

./casac examples/hello_world.casa -r

Compile without running:

./casac examples/fibonacci.casa -o fib
./fib

Common compiler options:

Option	Purpose
-o, --output	Set the output binary name
-L, --library-path	Add a module search directory
-l, --link-library	Link a native library
-r, --run	Run the program after compilation
--keep-asm	Keep the generated assembly file
-v, --version	Print the compiler version
--verbose	Print compiler progress

Learn Casa

Start with the Casa guide.

Use the topic references when you need exact behavior:

Topic	Reference
Values and types	Types and Literals
Stack evaluation and operators	Operators
Bindings, functions, and lambdas	Functions and Lambdas
Branches, loops, and matching	Control Flow
Structs and methods	Structs and Methods
Enums and patterns	Enums
Generics and traits	Traits
Imports	Modules
Compiler operations	Built-in Intrinsics

Library references:

Topic	Reference
Optional values and errors	Optional Values and Errors
Collections and iterators	Collections
Text, characters, and output	Text and Characters
Files, directories, environment, and processes	Operating-System APIs
Logging, timing, arguments, JSON, and parsing	Specialist Libraries
Parser building blocks	Parser Library

Tooling:

• Compiler diagnostics
• Language server
• Formatter usage and rules
• Casa style

See the curated examples for runnable programs ordered from introductory to advanced.

Build from source

Casa is self-hosted. Build the compiler with an existing casac:

./casac casa.casa -o casac -L lib