Enforce `NextProcess` return type in chain functions and update examples

1 files changed, 7 insertions, 7 deletions

diff --git a/mingling_macros/src/lib.rs b/mingling_macros/src/lib.rs
index 70a5c3e..818cda6 100644
--- a/mingling_macros/src/lib.rs
+++ b/mingling_macros/src/lib.rs
@@ -316,14 +316,14 @@ pub fn r_println(input: TokenStream) -> TokenStream {
 /// ```rust,ignore
 /// // Default program (ThisProgram):
 /// #[chain]
-/// fn my_step(prev: InputType) -> ChainProcess<ThisProgram> {
+/// fn my_step(prev: InputType) -> NextProcess {
 ///     // transform `prev`...
 ///     OutputType::new(result).to_render()
 /// }
 ///
 /// // Explicit program name:
 /// #[chain(MyProgram)]
-/// fn my_step(prev: InputType) -> ChainProcess<MyProgram> {
+/// fn my_step(prev: InputType) -> NextProcess {
 ///     // ...
 /// }
 /// ```
@@ -336,7 +336,7 @@ pub fn r_println(input: TokenStream) -> TokenStream {
 /// pack!(MyOutput = String);
 ///
 /// #[chain]
-/// fn greet(prev: HelloEntry) -> ChainProcess<ThisProgram> {
+/// fn greet(prev: HelloEntry) -> NextProcess {
 ///     let name = prev.first().cloned().unwrap_or_else(|| "World".to_string());
 ///     MyOutput::new(name).to_render()
 /// }
@@ -350,7 +350,7 @@ pub fn r_println(input: TokenStream) -> TokenStream {
 /// pack!(MyOutput = String);
 ///
 /// #[chain]
-/// async fn greet(prev: HelloEntry) -> ChainProcess<ThisProgram> {
+/// async fn greet(prev: HelloEntry) -> NextProcess {
 ///     let name = prev.first().cloned().unwrap_or_else(|| "World".to_string());
 ///     some_async_fn(&name).await;
 ///     MyOutput::new(name).to_render()
@@ -360,7 +360,7 @@ pub fn r_println(input: TokenStream) -> TokenStream {
 /// # Requirements
 ///
 /// - The function must have exactly **one** parameter (the previous type in the chain).
-/// - The function must return `ChainProcess<ProgramName>` (or `impl Into<ChainProcess<ProgramName>>`).
+/// - The function must return `NextProcess` (the type alias generated by `gen_program!`, which equals `ChainProcess<ProgramName>`).
 /// - With the `async` feature, async functions are supported; without it, async functions are rejected.
 #[proc_macro_attribute]
 pub fn chain(attr: TokenStream, item: TokenStream) -> TokenStream {
@@ -857,7 +857,7 @@ pub fn program_comp_gen(input: TokenStream) -> TokenStream {
     #[cfg(feature = "async")]
     let fn_exec_comp = quote! {
         #[::mingling::macros::chain(#name)]
-        pub async fn __exec_completion(prev: CompletionContext) -> ::mingling::ChainProcess<#name> {
+        pub async fn __exec_completion(prev: CompletionContext) -> NextProcess {
             let read_ctx = ::mingling::ShellContext::try_from(prev.inner);
             match read_ctx {
                 Ok(ctx) => {
@@ -872,7 +872,7 @@ pub fn program_comp_gen(input: TokenStream) -> TokenStream {
     #[cfg(not(feature = "async"))]
     let fn_exec_comp = quote! {
         #[::mingling::macros::chain(#name)]
-        pub fn __exec_completion(prev: CompletionContext) -> ::mingling::ChainProcess<#name> {
+        pub fn __exec_completion(prev: CompletionContext) -> NextProcess {
             let read_ctx = ::mingling::ShellContext::try_from(prev.inner);
             match read_ctx {
                 Ok(ctx) => {