Compilation Unit

A Letlang source file corresponds to a module, which is Letlang's compilation unit.

There are 2 kinds of modules:

• library modules
• executable modules

Library Modules

They MUST be translated to a single Rust library crate.

They MUST expose a Binary Module Interface.

The generated Rust library crate SHOULD depend on an llruntime Rust crate containing the Letlang runtime.

Executable modules

They MUST be translated to a Rust library crate.

They MUST expose a main function.

A Rust executable crate containing the Letlang runtime bootstrap code, calling the main function, MUST be generated.

The generated Rust library crates SHOULD depend on an llruntime Rust crate containing the Letlang runtime.