Method ports_callback

tangle/src/node.rs:325–337

(&mut self, inputs: Vec<PortIdx>, outputs: Vec<PortIdx>, r: &mut Region)

    }

    fn ports_callback(&mut self, inputs: Vec<PortIdx>, outputs: Vec<PortIdx>, r: &mut Region) {
        // set the block port as a state edge, of the block itself
        let port = outputs[0];
        let new_state = r.states.len();
        r.states.push(State {
            name: format!("bb{}", new_state),
            variant: StateVariant::Block(NodeIdx::new(0)), // this gets filled in by Region::observe_state_edges
            producers: vec![],
        });

        r.constrain(port, Storage::Immaterial(Some(new_state.try_into().unwrap())));
        r.ports[port].set_variant(EdgeVariant::State);
    }

    fn codegen(&self, token: &NodeOwner, inputs: Vec<PortIdx>, outputs: Vec<PortIdx>, r: &mut Region, ir: &mut IR, ops: &mut Assembler) {
        // block entries don't codegen to anything