From 57c53affe3542cb6bd4e79ee4c18f20a1bd76b2d Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Mon, 17 Aug 2026 05:49:19 +0800
Subject: 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.
---
 examples/example-structural-renderer/src/main.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'examples/example-structural-renderer/src/main.rs')

diff --git a/examples/example-structural-renderer/src/main.rs b/examples/example-structural-renderer/src/main.rs
index a1bddbd..c1cfd69 100644
--- a/examples/example-structural-renderer/src/main.rs
+++ b/examples/example-structural-renderer/src/main.rs
@@ -32,7 +32,8 @@ fn main() {
 }
 
 // --------- IMPORTANT ---------
-// For beautiful output structure, do not use `pack!` to wrap the types that need to be output.
+// For beautiful output structure, do not wrap the types that need to be output
+// in a newtype; instead, use a named struct.
 // Instead, manually implement
 //        ____________________________________ Mark as structured data so it can be rendered
 //       /                ____________________ Implement serde::Serialize
@@ -48,7 +49,7 @@ struct Info {
 }
 // This will output: {"member_name":"name","member_age":32} structure
 
-// If using pack!(Info = (String, i32));
+// If wrapping with a tuple newtype (e.g. `#[derive(Grouped, Wrap)] pub struct Info((String, i32));`)
 // Output: {"inner":["name", 32]}
 
 // --------- IMPORTANT ---------
-- 
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