Method binary_op_inplace_unicode_target_local

crates/vm/src/frame.rs:8050–8068

(
        &self,
        cache_base: usize,
        left: &PyObject,
    )

    #[inline]
    fn binary_op_inplace_unicode_target_local(
        &self,
        cache_base: usize,
        left: &PyObject,
    ) -> Option<usize> {
        let next_idx = cache_base + Instruction::BinaryOp { op: Arg::marker() }.cache_entries();
        let unit = self.code.instructions.get(next_idx)?;
        let next_op = unit.op.to_base().unwrap_or(unit.op);
        if !matches!(next_op, Instruction::StoreFast { .. }) {
            return None;
        }
        let local_idx = usize::from(u8::from(unit.arg));
        self.localsplus
            .fastlocals()
            .get(local_idx)
            .and_then(|slot| slot.as_ref())
            .filter(|local| local.is(left))
            .map(|_| local_idx)
    }

    /// Adaptive counter: trigger specialization at zero, otherwise advance countdown.
    #[inline]