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The Callisto Programming Language

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Callisto is a stack-based imperative programming language with stack safety enforced by the compiler (which is optional).

It also has a subset called CallistoScript made to compile to scripting languages like Lua, while keeping its low level features (like direct access to memory).

Supported targets

• x86 real mode - MS-DOS, bare metal
• x86_64 - Linux, macOS, FreeBSD (partial)
• ARM64 - Linux, macOS
• Uxn - Varvara
• Lua

Build

dub build --compiler=ldc

The compiler executable will be called cac

[!WARNING]
Compilation may freeze due to a bug in the Digital Mars D compiler. If this happens, compile with this command: dub build --compiler=ldc.

If that doesn't work, then run with --compiler=ldc2 instead.

Run example programs

Make sure you get the standard library

git submodule update --remote

Then compile example programs like this

cac examples/exampleNameHere.cal -i std

The output executable will be called out. Any example programs that require extra flags for compilation will have a compile command in a comment at the top of the source file.

IRC Channel

Join #callisto-lang on irc.libera.chat.