The `VirtualId` enum was imported but not used in the `macros.rs` file.
This commit removes the unused import to clean up the code.
Fix Zero Width Space handling in lexer
The lexer incorrectly handled the Zero Width Space character (U+200B)
when it appeared inside identifiers. This commit corrects the lexer to
ignore this character in such contexts, ensuring that identifiers
containing it are parsed correctly.
Add REPL functionality to MCP server
This commit introduces a REPL (Read-Eval-Print Loop) mode to the MCP
server, allowing for interactive evaluation of Myc code with persistent
state between calls.
Key additions:
- `REPL_ENV`: A thread-local static variable to hold the persistent
`Environment` for the REPL session. It's necessary because
`Environment` uses `Rc<RefCell<_>>` internally and is not
`Send`/`Sync`, but the `rmcp` server requires its handler to be `Send
+ Sync`. This is safe as the underlying Tokio runtime is
single-threaded.
- `repl_eval`: A new tool that evaluates a given code string within the
persistent REPL environment. Bindings (variables, functions, macros)
are preserved across invocations.
- `repl_reset`: A tool to reset the REPL session, clearing all
accumulated bindings and starting with a fresh environment.
- The main tool description in `mcp_server.rs` is updated to mention the
new REPL functionalities.
Brummel
ed1b5bae7a