This repo is mainly for debugging and experimentation.

• bins contains the binaries for the demo with a compiler that loads the plugin in memory and ls (Language Server).
• contracts contains a minimal Cairo project that uses the plugin.
• plugin contains the source code for the demo plugin and compiler to extends Cairo and Scarb. The very simple plugin just rewrites implementations found into a module with a #[custom::contract] attribute. self is automatically added by the plugin, or you can precise r: R to inject ref self: ContractState instead. If the implementation is named bad, the plugin will emit a diagnostic. Also, if a statement in a function starts with let fail = 1, the plugin will emit a diagnostic.

1. Install Rust.
2. cargo build -r --workspace or cargo run -r --bin compiler -- --manifest-path contracts/Scarb.toml

1. Build the language server with cargo build -r --bin demo-ls.
2. Install the Cairo extension for VSCode (2.8.0).
3. Adjust the paths inside settings.json and use this file setting into VSCode.
4. Open the folder contracts.
5. Open the file lib.cairo.
6. Make some changes inside the function and the diagnostics should appear inside the PROBLEMS tag, but not inside the editor panel.
7. A plugin diagnostic seems to be correctly handled by the language server, remove the let fail = 1; for something else that generates a diagnostics, and it should not appear inside the editor panel.