fixed some reference errors

src/vcd/parse/events.rs

@@ -191,7 +191,7 @@ pub(super) fn parse_events<'a>(
                             // so that we end up storing all values
                             // of a particular signal in a consistent
                             // amount of bytes
-                            let bytes_required = signal.bytes_required()?;
+                            let bytes_required = Signal::bytes_required(num_bits, name)?;
 
                             while curr_num_bytes < bytes_required {
                                 // TODO: remove once library is known to be stable

src/vcd/parse/scopes.rs

@@ -58,6 +58,14 @@ pub(super) fn parse_var<'a>(
         | SigType::Tri1
         | SigType::Time => {
             let no_bits = word.parse::<usize>().expect(parse_err.as_str());
+            let no_bits = u16::try_from(no_bits).map_err(|_| {
+                format!(
+                    "Error near {}:{} while parsing vcd file at {cursor:?}. \
+                     This signal has {no_bits} > 2^16 - 1 bits.",
+                    file!(),
+                    line!()
+                )
+            })?;
             Some(no_bits)
         }
         // for strings, we don't really care what the number of bits is
@@ -100,7 +108,7 @@ pub(super) fn parse_var<'a>(
                 name: full_signal_name,
                 sig_type: var_type,
                 signal_error: None,
-                num_bits: None,
+                num_bits: no_bits,
                 self_idx: signal_idx,
                 nums_encoded_as_fixed_width_le_u8: vec![],
                 string_vals: vec![],

src/vcd/signal.rs

@@ -92,51 +92,9 @@ impl Signal {
             )),
         }
     }
-    // pub(super) fn try_dereference_alias_mut<'a>(
+    pub(super) fn bytes_required(num_bits: &Option<u16>, name: &String) -> Result<u8, String> {
-    //     &'a self,
+        let num_bits = num_bits
-    //     signals: &'a mut Vec<Signal>,
+            .ok_or_else(|| format!("Error near {}:{}. num_bits empty.", file!(), line!()))?;
-    // ) -> Result<&mut Signal, String> {
-    //     // dereference a signal if we need to and return a signal, else return
-    //     // the signal itself
-    //     let signal = match self {
-    //         Signal::Data {
-    //             name,
-    //             sig_type,
-    //             signal_error,
-    //             num_bits,
-    //             self_idx,
-    //             ..
-    //         } => {
-    //             let SignalIdx(idx) = self_idx;
-    //             signals.get(*idx).unwrap()
-    //         }
-    //         Signal::Alias { name, signal_alias } => {
-    //             let SignalIdx(idx) = signal_alias;
-    //             signals.get(*idx).unwrap()
-    //         }
-    //     };
-    //     match signal {
-    //         Signal::Data { .. } => Ok(signal),
-    //         Signal::Alias { .. } => Err(format!(
-    //             "Error near {}:{}. A signal alias shouldn't \
-    //              point to a signal alias.",
-    //             file!(),
-    //             line!()
-    //         )),
-    //     }
-    // }
-    pub(super) fn bytes_required(&self) -> Result<u8, String> {
-        match self {
-            Signal::Data {
-                name,
-                sig_type,
-                signal_error,
-                num_bits,
-                ..
-            } => {
-                let num_bits = num_bits.ok_or_else(|| {
-                    format!("Error near {}:{}. num_bits empty.", file!(), line!())
-                })?;
         let bytes_required = (num_bits / 8) + if (num_bits % 8) > 0 { 1 } else { 0 };
         let bytes_required = u8::try_from(bytes_required).map_err(|_| {
             format!(
@@ -148,37 +106,6 @@ impl Signal {
         })?;
         Ok(bytes_required)
     }
-            Signal::Alias { name, signal_alias } => {
-                let msg = format!(
-                    "Error near {}:{}. Bytes required should not be called on the signal alias {name}",
-                    file!(),
-                    line!()
-                );
-                Err(msg)
-            }
-        }
-        // let bytes_required = (num_bits / 8) + if (num_bits % 8) > 0 { 1 } else { 0 };
-    }
-    // fn u8_tmstmp_to_biguint(&self, idx: usize) -> BigUint {
-    //     // let lsb_idx = self.
-    //     match self {
-    //         Signal::Data {
-    //             name,
-    //             sig_type,
-    //             signal_error,
-    //             num_bits,
-    //             self_idx,
-    //             nums_encoded_as_fixed_width_le_u8,
-    //             string_vals,
-    //             lsb_indxs_of_num_tmstmp_vals_on_tmln,
-    //             byte_len_of_num_tmstmp_vals_on_tmln,
-    //             lsb_indxs_of_string_tmstmp_vals_on_tmln,
-    //             byte_len_of_string_tmstmp_vals_on_tmln,
-    //             scope_parent,
-    //         } => {}
-    //     }
-    //     BigUint::zero()
-    // }
     pub(super) fn query_value(&self, time: BigUint) -> Result<TimelineQueryResults, String> {
         // match
         // assert

src/vcd/types.rs

@@ -61,10 +61,10 @@ pub struct VCD {
 
 impl VCD {
     /// We take in a Signal and attempt to dereference that signal if it is of
-    /// variant Signal::Alias. If it is of variant Signal::Alias and points to
+    /// variant ``Signal::Alias``. If it is of variant ``Signal::Alias`` and points to
-    /// another alias, that's an error. Otherwise, we return the Signal::Data
+    /// another alias, that's an error. Otherwise, we return the ``Signal::Data``
-    /// pointed to by the Signal::Alias.
+    /// pointed to by the ``Signal::Alias``.
-    /// If the Signal is of varint Signal::Data, then that can be returned directly.
+    /// If the Signal is of varint ``Signal::Data``, then that can be returned directly.
     pub(super) fn try_dereference_alias_mut<'a>(
         &'a mut self,
         idx: &SignalIdx,