diff --git a/src/rstd/atomic.rs b/src/rstd/atomic.rs
index 433eb03..ef2d8a8 100644
--- a/src/rstd/atomic.rs
+++ b/src/rstd/atomic.rs
@@ -12,6 +12,8 @@ use crate::rcore::*;
 
 use super::*;
 
+pub type AParseResult<A> = Result<A, <A as Atomic>::AParseError>;
+
 /// This trait combines functionality of [`Mentionable`] and [`Factory`],
 /// while limiting [`Mentionable::points_typed`] (and corresponding [`Mentionable::topology`])
 /// to an empty sequence.
@@ -19,12 +21,12 @@ pub trait Atomic: 'static + Send + Sync + Send + Clone + Serializable {
     /// Equivalent of [`Factory::ParseError`].
     type AParseError: Error;
     /// Static equivalent of [`Factory::deserialize`].
-    fn a_deserialize(deserializer: &mut dyn Deserializer) -> Result<Self, Self::AParseError>;
+    fn a_deserialize(deserializer: &mut dyn Deserializer) -> AParseResult<Self>;
     /// Static equivalent of [`Factory::extend`].
-    fn a_extend(self, tail: &[u8]) -> Result<Self, Self::AParseError>;
+    fn a_extend(self, tail: &[u8]) -> AParseResult<Self>;
 }
 
-fn _parse_slice<A: Atomic>(slice: &[u8]) -> Result<A, A::AParseError> {
+fn _parse_slice<A: Atomic>(slice: &[u8]) -> AParseResult<A> {
     let mut deserializer = SliceDeserializer::from(slice);
     let atomic = A::a_deserialize(&mut deserializer)?;
     let tail = deserializer.read_all();
@@ -38,13 +40,11 @@ fn _parse_slice<A: Atomic>(slice: &[u8]) -> Result<A, A::AParseError> {
 /// Extension trait to provide method-like utilities associated with [Atomic]s.
 pub trait AtomicExt: Atomic {
     /// Static equivalent of [`FactoryExt::parse_slice`].
-    fn parse_slice(slice: &[u8]) -> Result<Self, Self::AParseError> {
+    fn parse_slice(slice: &[u8]) -> AParseResult<Self> {
         _parse_slice(slice)
     }
 
-    fn o_deserialise<'a, Ctx: Context<'a>>(
-        dectx: &mut dyn DeCtx<'a, Ctx>,
-    ) -> Result<Self, Self::AParseError> {
+    fn o_deserialise<'a, Ctx: Context<'a>>(dectx: &mut dyn DeCtx<'a, Ctx>) -> AParseResult<Self> {
         Self::a_deserialize(dectx.deserializer())
     }
 }
diff --git a/src/rstd/atomic/au64.rs b/src/rstd/atomic/au64.rs
index c651453..bd4555a 100644
--- a/src/rstd/atomic/au64.rs
+++ b/src/rstd/atomic/au64.rs
@@ -37,11 +37,11 @@ impl From<&[u8]> for IntParseError {
 impl Atomic for u64 {
     type AParseError = IntParseError;
 
-    fn a_deserialize(deserializer: &mut dyn Deserializer) -> Result<Self, Self::AParseError> {
+    fn a_deserialize(deserializer: &mut dyn Deserializer) -> AParseResult<Self> {
         Ok(u64::from_le_bytes(deserializer.read_n_const::<8>()?))
     }
 
-    fn a_extend(self, tail: &[u8]) -> Result<Self, Self::AParseError> {
+    fn a_extend(self, tail: &[u8]) -> AParseResult<Self> {
         Err(Self::a_extension_error(tail))
     }
 }
diff --git a/src/rstd/atomic/boolean.rs b/src/rstd/atomic/boolean.rs
index 539beec..2422201 100644
--- a/src/rstd/atomic/boolean.rs
+++ b/src/rstd/atomic/boolean.rs
@@ -44,7 +44,7 @@ impl From<&[u8]> for BooleanParseError {
 impl Atomic for bool {
     type AParseError = BooleanParseError;
 
-    fn a_deserialize(deserializer: &mut dyn Deserializer) -> Result<Self, Self::AParseError> {
+    fn a_deserialize(deserializer: &mut dyn Deserializer) -> AParseResult<Self> {
         let byte = deserializer.read_n_const::<1>()?;
         match byte[0] {
             0 => Ok(false),
@@ -53,7 +53,7 @@ impl Atomic for bool {
         }
     }
 
-    fn a_extend(self, tail: &[u8]) -> Result<Self, Self::AParseError> {
+    fn a_extend(self, tail: &[u8]) -> AParseResult<Self> {
         Err(Self::a_extension_error(tail))
     }
 }
diff --git a/src/rstd/atomic/plain.rs b/src/rstd/atomic/plain.rs
index db71d16..6054522 100644
--- a/src/rstd/atomic/plain.rs
+++ b/src/rstd/atomic/plain.rs
@@ -31,11 +31,11 @@ impl Serializable for Plain {
 impl Atomic for Plain {
     type AParseError = PlainParseError;
 
-    fn a_deserialize(deserializer: &mut dyn Deserializer) -> Result<Self, Self::AParseError> {
+    fn a_deserialize(deserializer: &mut dyn Deserializer) -> AParseResult<Self> {
         Ok(Plain::from_slice(deserializer.read_all()))
     }
 
-    fn a_extend(mut self, tail: &[u8]) -> Result<Self, Self::AParseError> {
+    fn a_extend(mut self, tail: &[u8]) -> AParseResult<Self> {
         self.data.extend_from_slice(tail);
         Ok(self)
     }