Function tir_core::utils::op_dyn_cast

pub fn op_dyn_cast<T: ?Sized + 'static>(op: OpRef) -> Option<Rc<RefCell<T>>>

Cast an operation to a registered trait

Rust does not allow trait upcasting (at least for now). To be able to cast from dyn Op to user-defined trait, the trait must be globally registered. That is easily done with tir_macros::op_implements attribute:

use tir_core::Terminator;

#[tir_macros::op_implements(dialect = test)]
impl Terminator for TestOp {}

And later users can dynamically query known traits and perform generic transformations or analysis on operations.

Example:

use tir_core::{OpRef, utils::op_dyn_cast, Terminator};

fn test(op: OpRef) {
    if let Some(op) = op_dyn_cast::<dyn Terminator>(op) {
        // do smth useful
    }
}