simplified by entirely removing DataRef

Cargo.toml

@@ -2,7 +2,8 @@
 members = [
   "crates/app",
   "crates/eval",
-  "crates/ir", "crates/prowocessing",
+  "crates/ir", 
+  "crates/prowocessing",
 ]
 resolver = "2"
 

crates/app/src/main.rs

@@ -27,7 +27,7 @@ enum Commands {
     },
     Dev {
         #[command(subcommand)]
-        dev_command: DevCommands,
+        command: DevCommands,
     },
 }
 
@@ -50,7 +50,9 @@ fn main() {
             machine.feed(ir);
             machine.eval_full();
         }
-        Commands::Dev { dev_command } => dev_command.run(),
+        Commands::Dev {
+            command: dev_command,
+        } => dev_command.run(),
     }
 }
 
@@ -85,7 +87,8 @@ mod dev {
                     let pipe = PipelineBuilder::new().add(1).stringify().build();
                     println!(
                         "{:?}",
-                        pipe.run(vec![num0.into(), num1.into()].into()).into_inner()[0]
+                        pipe.run(vec![&num0.into(), &num1.into()].into())
+                            .into_inner()[0]
                     );
                 }
             }

crates/eval/src/lib.rs

@@ -37,7 +37,7 @@ impl Available {
     #[must_use]
     pub fn pick(&self) -> Box<dyn Evaluator> {
         match self {
-            Self::Debug => Box::new(kind::debug::Evaluator::default()),
+            Self::Debug => Box::<kind::debug::Evaluator>::default(),
         }
     }
 }

crates/prowocessing/src/experimental/trait_based/data.rs

@@ -1,7 +1,5 @@
 //! Definitions of the data transfer and storage types.
 
-/// Types for element and pipeline IO
 pub mod io;
 
-/// Raw data types contained in `io`
 pub mod raw;

crates/prowocessing/src/experimental/trait_based/data/io.rs

@@ -1,22 +1,19 @@
-use super::raw::{Data, OwnedData};
+//! Types for element and pipeline IO
+
+use std::{borrow::ToOwned, convert::Into};
+
+use super::raw::Data;
 
 /// Newtype struct with borrowed types for pipeline/element inputs, so that doesn't force a move or clone
-pub struct Inputs<'a>(Vec<Data<'a>>);
+pub struct Inputs<'a>(pub Vec<&'a Data>);
 
-impl<'a> Inputs<'a> {
-    /// get inner value(s)
-    pub(crate) fn inner(&self) -> Vec<Data<'a>> {
-        self.0.clone()
-    }
-}
-
-impl<'a> From<Vec<Data<'a>>> for Inputs<'a> {
-    fn from(value: Vec<Data<'a>>) -> Self {
+impl<'a> From<Vec<&'a Data>> for Inputs<'a> {
+    fn from(value: Vec<&'a Data>) -> Self {
         Self(value)
     }
 }
 
-impl<'a, T: Into<Data<'a>>> From<T> for Inputs<'a> {
+impl<'a, T: Into<&'a Data>> From<T> for Inputs<'a> {
     fn from(value: T) -> Self {
         Self(vec![value.into()])
     }
@@ -24,37 +21,31 @@ impl<'a, T: Into<Data<'a>>> From<T> for Inputs<'a> {
 
 impl<'a> From<&'a Outputs> for Inputs<'a> {
     fn from(value: &'a Outputs) -> Self {
-        Self(value.0.iter().map(std::convert::Into::into).collect())
+        Self(value.0.iter().map(Into::into).collect())
     }
 }
 
-/// Newtype struct around `OwnedData` for pipeline/element outputs
-pub struct Outputs(Vec<OwnedData>);
+/// Used for pipeline/element outputs
+pub struct Outputs(Vec<Data>);
 
 impl Outputs {
     /// consume self and return inner value(s)
-    pub fn into_inner(self) -> Vec<OwnedData> {
+    pub fn into_inner(self) -> Vec<Data> {
         self.0
     }
 }
-impl From<Vec<OwnedData>> for Outputs {
-    fn from(value: Vec<OwnedData>) -> Self {
+impl From<Vec<Data>> for Outputs {
+    fn from(value: Vec<Data>) -> Self {
         Self(value)
     }
 }
-impl<T: Into<OwnedData>> From<T> for Outputs {
+impl<T: Into<Data>> From<T> for Outputs {
     fn from(value: T) -> Self {
         Self(vec![value.into()])
     }
 }
 impl From<Inputs<'_>> for Outputs {
     fn from(value: Inputs) -> Self {
-        Self(
-            value
-                .0
-                .into_iter()
-                .map(|i: Data<'_>| Data::to_owned_data(&i))
-                .collect(),
-        )
+        Self(value.0.into_iter().map(ToOwned::to_owned).collect())
     }
 }

crates/prowocessing/src/experimental/trait_based/data/raw.rs

@@ -1,58 +1,20 @@
-//! Dynamic data storage and transfer types
+//! Dynamic data storage and transfer types for use in [`io`]
 
-/// Owned data type, for use mostly in outputs and storage
+// Dynamic data type
 #[derive(Clone, Debug)]
-pub enum OwnedData {
+pub enum Data {
     String(String),
     Int(i32),
 }
 
-impl From<String> for OwnedData {
+impl From<String> for Data {
     fn from(value: String) -> Self {
         Self::String(value)
     }
 }
 
-impl From<i32> for OwnedData {
+impl From<i32> for Data {
     fn from(value: i32) -> Self {
         Self::Int(value)
     }
 }
-
-/// Unowned data type, for inputs into runner functions
-#[derive(Clone, Copy)]
-pub enum Data<'a> {
-    String(&'a str),
-    Int(i32),
-}
-
-impl Data<'_> {
-    /// converts itself to `OwnedData`
-    pub fn to_owned_data(&self) -> OwnedData {
-        match self {
-            Data::String(s) => (*s).to_owned().into(),
-            Data::Int(i) => (*i).into(),
-        }
-    }
-}
-
-impl<'a> From<&'a str> for Data<'a> {
-    fn from(value: &'a str) -> Self {
-        Self::String(value)
-    }
-}
-
-impl From<i32> for Data<'_> {
-    fn from(value: i32) -> Self {
-        Self::Int(value)
-    }
-}
-
-impl<'a> From<&'a OwnedData> for Data<'a> {
-    fn from(value: &'a OwnedData) -> Self {
-        match value {
-            OwnedData::String(s) => Data::String(s),
-            OwnedData::Int(i) => Data::Int(*i),
-        }
-    }
-}

crates/prowocessing/src/experimental/trait_based/ops/num.rs

@@ -14,11 +14,10 @@ pub struct Add(pub i32);
 impl PipelineElement for Add {
     fn runner(&self) -> fn(&Inputs) -> Outputs {
         |input| {
-            if let [Data::Int(i0), Data::Int(i1), ..] = input.inner()[..] {
-                (i0 + i1).into()
-            } else {
+            let [Data::Int(i0), Data::Int(i1), ..] = input.0[..] else {
                 panic!("Invalid data passed")
-            }
+            };
+            (i0 + i1).into()
         }
     }
 
@@ -35,11 +34,10 @@ pub struct Subtract(pub i32);
 impl PipelineElement for Subtract {
     fn runner(&self) -> fn(&Inputs) -> Outputs {
         |input| {
-            if let [Data::Int(i0), Data::Int(i1), ..] = input.inner()[..] {
-                (i0 + i1).into()
-            } else {
+            let [Data::Int(i0), Data::Int(i1), ..] = input.0[..] else {
                 panic!("Invalid data passed")
-            }
+            };
+            (i0 + i1).into()
         }
     }
 
@@ -56,11 +54,10 @@ pub struct Stringify;
 impl PipelineElement for Stringify {
     fn runner(&self) -> fn(&Inputs) -> Outputs {
         |input| {
-            if let [Data::Int(int), ..] = input.inner()[..] {
-                int.to_string().into()
-            } else {
+            let [Data::Int(int), ..] = input.0[..] else {
                 panic!("Invalid data passed")
-            }
+            };
+            int.to_string().into()
         }
     }
 

crates/prowocessing/src/experimental/trait_based/ops/str.rs

@@ -12,11 +12,10 @@ pub struct Concatenate(pub String);
 impl PipelineElement for Concatenate {
     fn runner(&self) -> fn(&Inputs) -> Outputs {
         |input| {
-            if let [Data::String(s0), Data::String(s1), ..] = input.inner()[..] {
-                format!("{s0}{s1}").into()
-            } else {
+            let [Data::String(s0), Data::String(s1), ..] = input.0[..] else {
                 panic!("Invalid data passed")
-            }
+            };
+            format!("{s0}{s1}").into()
         }
     }
 
@@ -33,11 +32,10 @@ pub struct Upper;
 impl PipelineElement for Upper {
     fn runner(&self) -> fn(&Inputs) -> Outputs {
         |input| {
-            if let [Data::String(s), ..] = input.inner()[..] {
-                s.to_uppercase().into()
-            } else {
+            let [Data::String(s), ..] = input.0[..] else {
                 panic!("Invalid data passed")
-            }
+            };
+            s.to_uppercase().into()
         }
     }
 
@@ -54,11 +52,10 @@ pub struct Lower;
 impl PipelineElement for Lower {
     fn runner(&self) -> fn(&Inputs) -> Outputs {
         |input| {
-            if let [Data::String(s), ..] = input.inner()[..] {
-                s.to_lowercase().into()
-            } else {
+            let [Data::String(s), ..] = input.0[..] else {
                 panic!("Invalid data passed")
-            }
+            };
+            s.to_lowercase().into()
         }
     }