fn write_fst_export_var<W: Write + Seek>(
h: &Hierarchy,
out: &mut FstHeaderWriter<W>,
signal_ids: &mut AHashMap<SignalRef, FstSignalId>,
var_ref: VarRef,
) -> Result<()>Expand description
Declares a single variable in the FST header, reusing an existing signal id if the same signal was already declared under a different variable name (aliasing).