f comments

Author: TheBlueMatt

lightning/src/util/ser_macros.rs

@@ -997,7 +997,9 @@ macro_rules! _impl_writeable_tlv_based_enum_common {
 	($st: ident, $(($variant_id: expr, $variant_name: ident) =>
 		{$(($type: expr, $field: ident, $fieldty: tt)),* $(,)*}
 	),* $(,)?;
+	// $tuple_variant_* are only passed from `impl_writeable_tlv_based_enum_*_legacy`
 	$(($tuple_variant_id: expr, $tuple_variant_name: ident)),* $(,)?;
+	// $length_prefixed_* are only passed from `impl_writeable_tlv_based_enum_*` non-`legacy`
 	$(($length_prefixed_tuple_variant_id: expr, $length_prefixed_tuple_variant_name: ident)),* $(,)?) => {
 		impl $crate::util::ser::Writeable for $st {
 			fn write<W: $crate::util::ser::Writer>(&self, writer: &mut W) -> Result<(), $crate::io::Error> {
@@ -1049,7 +1051,7 @@ macro_rules! _impl_writeable_tlv_based_enum_common {
 /// impl_writeable_tlv_based_enum!(EnumName,
 ///   (0, StructVariantA) => {(0, required_variant_field, required), (1, optional_variant_field, option)},
 ///   (1, StructVariantB) => {(0, variant_field_a, required), (1, variant_field_b, required), (2, variant_vec_field, optional_vec)},
-///   (2, TupleVariantA) => {}, // Note that empty tuple varaints have to use the struct syntax due to rust limitations
+///   (2, TupleVariantA) => {}, // Note that empty tuple variants have to use the struct syntax due to rust limitations
 ///   {3, TupleVariantB} => (),
 /// );
 /// ```