Implement useful methods on PrefixedVec

Author: ali-behjati

pythnet/pythnet_sdk/src/wire/array.rs

@@ -47,7 +47,7 @@ where
     type Value = [T; N];
 
     fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
-        write!(formatter, "an array of length {}", N)
+        write!(formatter, "an array of length {N}")
     }
 
     fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error>

pythnet/pythnet_sdk/src/wire/prefixed_vec.rs

@@ -11,7 +11,7 @@ use serde::{
 /// PrefixlessVec overrides the serialization to _not_ write a length prefix.
 #[derive(Clone, Debug, Hash, PartialEq, PartialOrd)]
 struct PrefixlessVec<T> {
-    data: Vec<T>,
+    inner: Vec<T>,
 }
 
 impl<T> Serialize for PrefixlessVec<T>
@@ -21,7 +21,7 @@ where
     #[inline]
     fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
         let mut seq = serializer.serialize_seq(None)?;
-        for item in &self.data {
+        for item in &self.inner {
             seq.serialize_element(item)?;
         }
         seq.end()
@@ -75,7 +75,7 @@ where
                     );
                 }
 
-                Ok(PrefixlessVec { data })
+                Ok(PrefixlessVec { inner: data })
             }
         }
 
@@ -105,15 +105,36 @@ pub struct PrefixedVec<L, T> {
     data:      PrefixlessVec<T>,
 }
 
-impl<T, L> From<Vec<T>> for PrefixedVec<L, T> {
+impl<L, T> From<Vec<T>> for PrefixedVec<L, T> {
     fn from(data: Vec<T>) -> Self {
         Self {
             __phantom: std::marker::PhantomData,
-            data:      PrefixlessVec { data },
+            data:      PrefixlessVec { inner: data },
         }
     }
 }
 
+impl<L, T> From<PrefixedVec<L, T>> for Vec<T> {
+    fn from(data: PrefixedVec<L, T>) -> Self {
+        data.data.inner
+    }
+}
+
+impl<L, T> IntoIterator for PrefixedVec<L, T> {
+    type Item = T;
+    type IntoIter = std::vec::IntoIter<Self::Item>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.data.inner.into_iter()
+    }
+}
+
+impl<L, T> PrefixedVec<L, T> {
+    pub fn iter(&self) -> std::slice::Iter<T> {
+        self.data.inner.iter()
+    }
+}
+
 impl<L, T> Serialize for PrefixedVec<L, T>
 where
     T: Serialize,
@@ -123,7 +144,7 @@ where
 {
     #[inline]
     fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
-        let len: L = L::try_from(self.data.data.len()).unwrap();
+        let len: L = L::try_from(self.data.inner.len()).unwrap();
         let mut st = serializer.serialize_struct("SizedVec", 1)?;
         st.serialize_field("len", &len)?;
         st.serialize_field("data", &self.data)?;