Function exact_float_from_obj

crates/vm/src/frame.rs:1129–1131

(obj: &PyObject, vm: &VirtualMachine)

#[inline]
fn exact_float_from_obj(obj: &PyObject, vm: &VirtualMachine) -> Option<f64> {
    obj.downcast_ref_if_exact::<PyFloat>(vm).map(|f| f.to_f64())
}

#[inline]
fn specialization_nonnegative_compact_index(i: &PyInt, vm: &VirtualMachine) -> Option<usize> {