add builder to RustyPipe

src/serializer/mod.rs

@@ -8,6 +8,10 @@ pub use vec_log_err::VecLogError;
 
 use std::fmt::Debug;
 
+/// This represents a result from a deserializing/mapping operation.
+/// It holds the desired content (`c`) and a list of warning messages,
+/// if there occurred minor error during the deserializing or mapping
+/// (e.g. certain list items could not be deserialized).
 #[derive(Clone)]
 pub struct MapResult<T> {
     pub c: T,

src/serializer/vec_log_err.rs

@@ -8,6 +8,11 @@ use serde_with::{de::DeserializeAsWrap, DeserializeAs};
 
 use super::MapResult;
 
+/// Deserializes a list of arbitrary items into a `MapResult`,
+/// creating warnings for items that could not be deserialized.
+///
+/// This is similar to `VecSkipError`, but it does not silently ignore
+/// faulty items.
 pub struct VecLogError<T>(PhantomData<T>);
 
 impl<'de, T, U> DeserializeAs<'de, MapResult<Vec<T>>> for VecLogError<U>