Design idea: Modeling lifetimes as rotational phases
To prove this isn't just theoretical, I’ve been looking into how this could be implemented today using procedural macros. A sigma_sync attribute could essentially act as a "Sigma-island" within standard Rust, automating the phase transitions for the developer.
The macro would perform a static analysis of the AST and transform linear code into a series of phase-locked rotations:
#[sigma_sync]
fn process_data() {
let mut data = 100; // Macro wraps this in SigmaAxis (0°)
// The macro identifies operation points and generates rotations:
step! { data += 10 }; // Auto-generated: rotate::<120>().execute(...)
step! { data *= 2 }; // Auto-generated: rotate::<240>().execute(...)
// Cycle completes and returns to 0° automatically
println!("Result: {}", data);
}
How it works under the hood:
- AST Analysis: The macro counts the operations and divides 360° by the total count to determine the phase offsets.
- Phase Injection: It transforms each
step!into aphase.rotate::<N>().execute(...)chain, ensuring that each phase is consumed and moved to the next. - Branch Alignment: For
if-elseblocks, the macro can inject "no-op rotations" to ensure both branches arrive at the same phase before merging.
This approach would allow us to experiment with Sigma-Rotation as a crate (a "Polonius Emulator" of sorts) without needing immediate changes to the compiler itself. It provides a safe harbor where memory management is strictly geometric and predictable.
I think this could be a viable path for testing the ergonomics of rotational lifetimes before committing to a full RFC.
Discussion in the ATmosphere