Allow trailing commas in macros

Cargo.toml

@@ -4,7 +4,7 @@ edition = "2021"
 license = "MIT"
 name = "pg_task"
 repository = "https://github.com/imbolc/pg_task"
-version = "0.1.1"
+version = "0.1.2"
 
 [dependencies]
 async-trait = "0.1"

examples/counter.rs

@@ -11,7 +11,7 @@ mod util;
 pg_task::task!(Count {
     Start,
     Proceed,
-    Finish
+    Finish,
 });
 
 // Also we need a enum representing all the possible tasks

src/macros.rs

@@ -1,7 +1,7 @@
 /// Implements enum wrapper for a single task containing all it's steps
 #[macro_export]
 macro_rules! task {
-    ($enum:ident { $($variant:ident),* }) => {
+    ($enum:ident { $($variant:ident),* $(,)? }) => {
         #[derive(Debug, serde::Deserialize, serde::Serialize)]
         pub enum $enum {
             $($variant($variant),)*
@@ -47,7 +47,7 @@ macro_rules! task {
 /// The macro implements the outer enum wrapper containing all the tasks
 #[macro_export]
 macro_rules! scheduler {
-    ($enum:ident { $($variant:ident),* }) => {
+    ($enum:ident { $($variant:ident),* $(,)? }) => {
         $crate::task!($enum { $($variant),* });
         impl $crate::Scheduler for $enum {}
     }