rtic-rs
diff --git a/‎CHANGELOG.md
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diff --git a/‎Cargo.toml
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diff --git a/‎src/ast.rs
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diff --git a/‎src/parse/app.rs
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@@ -17,11 +17,13 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 - Improved ergonomics allowing separation of task signatures to actual implementation in extern block `extern "Rust" { #[task(..)] fn t(..); }`.
 
+- Added type alias definitions to the `App` struct.
+
 
 ### Changed
 
 - [breaking-change] Move of dispatchers (interrupts) from `extern` to app arguments.
-  `app(..., dispatchers = [SSI0,...])` 
+  `app(..., dispatchers = [SSI0,...])`
   This should also work for ram functions and other attributes, see `examples/ramfunc.rs`.
 
 - [breaking-change] Rework whole spawn/schedule, support `foo::spawn( ... )`,
 
@@ -11,7 +11,7 @@ keywords = []
 license = "MIT OR Apache-2.0"
 name = "rtic-syntax"
 repository = "https://github.com/rtic-rs/rtic-syntax"
-version = "0.5.0-alpha.1"
+version = "0.5.0-alpha.2"
 
 [dependencies]
 indexmap = "1.0.2"
 
@@ -2,7 +2,7 @@
 
 use core::ops::Deref;
 
-use syn::{Attribute, Expr, Ident, Item, ItemUse, Pat, PatType, Path, Stmt, Type};
+use syn::{Attribute, Expr, Ident, Item, ItemType, ItemUse, Pat, PatType, Path, Stmt, Type};
 
 use crate::{Map, Set};
 
@@ -37,6 +37,9 @@ pub struct App {
     /// User code
     pub user_code: Vec<Item>,
 
+    /// User types
+    pub user_types: Vec<ItemType>,
+
     /// Hardware tasks: `#[task(binds = ..)]`s
     pub hardware_tasks: Map<HardwareTask>,
 
 
@@ -149,6 +149,7 @@ impl App {
         let mut software_tasks = Map::new();
         let mut user_imports = vec![];
         let mut user_code = vec![];
+        let mut user_types = vec![];
 
         let mut seen_idents = HashSet::<Ident>::new();
         let mut bindings = HashSet::<Ident>::new();
@@ -422,8 +423,7 @@ impl App {
                     user_imports.push(itemuse_.clone());
                 }
                 Item::Type(ref mut type_item) => {
-                    // Match structures with the attribute #[resources], name of structure is not
-                    // important
+                    // Match structures with the attribute #[monotonic]
                     if let Some(pos) = type_item
                         .attrs
                         .iter()
@@ -455,9 +455,11 @@ impl App {
 
                         monotonics.insert(type_item.ident.clone(), monotonic);
                     } else {
-                        // Structure without the #[resources] attribute should just be passed along
-                        user_code.push(item.clone());
+                        // Pass along any other type aliases
+                        user_types.push(type_item.clone());
                     }
+
+                    user_code.push(item.clone());
                 }
                 _ => {
                     // Anything else within the module should not make any difference
@@ -479,6 +481,7 @@ impl App {
             resources,
             user_imports,
             user_code,
+            user_types,
             hardware_tasks,
             software_tasks,
         })