refactor!: replace pack! macros with derive-based pipeline types

Remove the `pack!`, `pack_err!`, `pack_structural!`, and
`pack_err_structural!` macros, replacing all pipeline type definitions
with `#[derive(Grouped)]` and `#[derive(Grouped, Wrap)]` attributes.
This changes the generated struct shape from named-field structs with an
`inner` field to tuple structs accessed via `.0`, and removes the
auto-generated `name` and `info` fields from error types.

1 files changed, 5 insertions, 7 deletions

diff --git a/mingling/src/gen_program.rs b/mingling/src/gen_program.rs
index 2c476a2..ed60668 100644
--- a/mingling/src/gen_program.rs
+++ b/mingling/src/gen_program.rs
@@ -12,7 +12,7 @@ pub type Next = ChainProcess<ThisProgram>;
 
 /// The generic program entry point.
 ///
-/// This type is created by the `pack!` macro as a variant of the
+/// This type is generated by the `gen_program!` macro as a variant of the
 /// program's output type set (`ThisProgram`).
 pub struct Entry {
     /// The arguments provided by the user
@@ -41,7 +41,7 @@ pub enum ThisProgram {
 
 /// A struct representing a "renderer not found" error.
 ///
-/// This type is created by the `pack!` macro as a variant of the
+/// This type is generated by the `gen_program!` macro as a variant of the
 /// program's output type set (`ThisProgram`).
 pub struct ErrorRendererNotFound {
     /// The name of the renderer that was not found
@@ -50,7 +50,7 @@ pub struct ErrorRendererNotFound {
 
 /// A struct representing a "dispatcher not found" error.
 ///
-/// This type is created by the `pack!` macro as a variant of the
+/// This type is generated by the `gen_program!` macro as a variant of the
 /// program's output type set (`ThisProgram`).
 pub struct EntryFallback {
     /// The arguments provided by the user
@@ -61,8 +61,6 @@ pub struct EntryFallback {
 pub struct ResultEmpty;
 
 /// A dispatcher representing the subcommand `__comp` itself.
-///
-/// **You can register it using `with_dispatcher`.**
 #[cfg(feature = "comp")]
 pub struct CMDCompletion;
 
@@ -71,7 +69,7 @@ pub struct CMDCompletion;
 /// This struct holds the raw command-line arguments that were passed to the `__comp`
 /// subcommand, which will be used to compute completion suggestions.
 ///
-/// This type is created by the `pack!` macro as a variant of the
+/// This type is generated by the `gen_program!` macro as a variant of the
 /// program's output type set (`ThisProgram`).
 #[cfg(feature = "comp")]
 pub struct CompletionContext {
@@ -85,7 +83,7 @@ pub struct CompletionContext {
 /// which together provide the information needed to render completion candidates
 /// to the user's shell.
 ///
-/// This type is created by the `pack!` macro as a variant of the
+/// This type is generated by the `gen_program!` macro as a variant of the
 /// program's output type set (`ThisProgram`).
 #[cfg(feature = "comp")]
 pub struct CompletionSuggest {