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, 0 insertions, 154 deletions

diff --git a/mingling_macros/src/func/pack.rs b/mingling_macros/src/func/pack.rs
deleted file mode 100644
index d4fcb60..0000000
--- a/mingling_macros/src/func/pack.rs
+++ /dev/null
@@ -1,154 +0,0 @@
-// Doc Not Optimize
-use proc_macro::TokenStream;
-use quote::quote;
-use syn::parse::{Parse, ParseStream};
-use syn::{Attribute, Ident, Result as SynResult, Token, Type};
-
-struct PackInput {
-    attrs: Vec<Attribute>,
-    type_name: Ident,
-    inner_type: Type,
-}
-
-impl Parse for PackInput {
-    fn parse(input: ParseStream) -> SynResult<Self> {
-        let attrs = input.call(Attribute::parse_outer)?;
-        let type_name: Ident = input.parse()?;
-        input.parse::<Token![=]>()?;
-        let inner_type: Type = input.parse()?;
-
-        Ok(Self {
-            attrs,
-            type_name,
-            inner_type,
-        })
-    }
-}
-
-#[allow(clippy::too_many_lines)]
-pub(crate) fn pack(input: TokenStream) -> TokenStream {
-    let pack_input = syn::parse_macro_input!(input as PackInput);
-
-    let group_name = crate::default_program_path();
-    let type_name = pack_input.type_name;
-    let inner_type = pack_input.inner_type;
-    let attrs = pack_input.attrs;
-
-    // Generate the struct definition
-    // Note: No longer derives Serialize under structural_renderer.
-    // Use pack_structual! for structured output support.
-    let struct_def = quote! {
-        #(#attrs)*
-        pub struct #type_name {
-            pub(crate) inner: #inner_type,
-        }
-    };
-
-    // Generate the new() method
-    let new_impl = quote! {
-        impl #type_name {
-            /// Creates a new instance of the wrapper type
-            pub fn new(inner: #inner_type) -> Self {
-                Self { inner }
-            }
-        }
-    };
-
-    // Generate From and Into implementations
-    let from_into_impl = quote! {
-        impl From<#inner_type> for #type_name {
-            fn from(inner: #inner_type) -> Self {
-                Self::new(inner)
-            }
-        }
-
-        impl From<#type_name> for #inner_type {
-            fn from(wrapper: #type_name) -> #inner_type {
-                wrapper.inner
-            }
-        }
-    };
-
-    // Generate AsRef and AsMut implementations
-    let as_ref_impl = quote! {
-        impl ::std::convert::AsRef<#inner_type> for #type_name {
-            fn as_ref(&self) -> &#inner_type {
-                &self.inner
-            }
-        }
-
-        impl ::std::convert::AsMut<#inner_type> for #type_name {
-            fn as_mut(&mut self) -> &mut #inner_type {
-                &mut self.inner
-            }
-        }
-    };
-
-    // Generate Deref and DerefMut implementations
-    let deref_impl = quote! {
-        impl ::std::ops::Deref for #type_name {
-            type Target = #inner_type;
-
-            fn deref(&self) -> &Self::Target {
-                &self.inner
-            }
-        }
-
-        impl ::std::ops::DerefMut for #type_name {
-            fn deref_mut(&mut self) -> &mut Self::Target {
-                &mut self.inner
-            }
-        }
-    };
-
-    // Check if the inner type implements Default by generating conditional code
-    let default_impl = quote! {
-        impl ::std::default::Default for #type_name
-        where
-            #inner_type: ::std::default::Default,
-        {
-            fn default() -> Self {
-                Self::new(::std::default::Default::default())
-            }
-        }
-    };
-
-    let register_impl = quote! {
-        ::mingling::macros::register_type!(#type_name);
-    };
-
-    let expanded = quote! {
-        #struct_def
-
-        #new_impl
-        #from_into_impl
-        #as_ref_impl
-        #deref_impl
-        #default_impl
-        #register_impl
-
-        impl Into<mingling::AnyOutput<#group_name>> for #type_name {
-            fn into(self) -> mingling::AnyOutput<#group_name> {
-                mingling::AnyOutput::new(self)
-            }
-        }
-
-        impl Into<mingling::ChainProcess<#group_name>> for #type_name {
-            fn into(self) -> mingling::ChainProcess<#group_name> {
-                mingling::AnyOutput::new(self).route_chain()
-            }
-        }
-
-        /// SAFETY: This is an internal implementation of the `pack!` macro,
-        /// guaranteeing that the enum value registered by the `register_type!` macro
-        /// is exactly the same as the actual return value,
-        /// which can be confirmed via the `Ident` in the `quote!` block.
-        unsafe impl ::mingling::Grouped<#group_name> for #type_name {
-            fn member_id() -> #group_name {
-                #group_name::#type_name
-            }
-        }
-    };
-
-    expanded.into()
-}