From 979e881762a728661e72efd99bc2b35b3db8c71b Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Sun, 24 May 2026 18:20:34 +0800
Subject: Require explicit import of `crate::Next` in chained functions

---
 CHANGELOG.md                   | 14 ++++++++++++++
 mingling_macros/src/chain.rs   |  8 +++++++-
 mling/src/cli/install.rs       |  2 +-
 mling/src/cli/list.rs          |  2 +-
 mling/src/cli/namespace_mgr.rs |  5 ++++-
 mling/src/cli/read.rs          |  5 ++++-
 6 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6bda6b..36806ce 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -108,6 +108,20 @@ fn render(prev: Previous) { // Implicitly introduces `__renderer_inner_result`
 
 5. **\[macros\]** Moved the `entry!`, `route!`, `#[program_setup]` macros into the `extra_macros` feature
 
+6. **\[macros\]** The `crate::Next` generated by `gen_program!()` now requires explicit import into the project
+
+```rust
+use crate::Next;
+
+#[chain]
+fn handle_cmd(args: EntryCmd) -> Next {
+    //                           ^^^^\_ requires explicit import
+    // ...
+}
+
+gen_program!();
+```
+
 ---
 
 ### Release 0.1.8 (2026-05-18)
diff --git a/mingling_macros/src/chain.rs b/mingling_macros/src/chain.rs
index 9666c51..559468c 100644
--- a/mingling_macros/src/chain.rs
+++ b/mingling_macros/src/chain.rs
@@ -183,7 +183,13 @@ fn generate_original_fn(
             }
         }
     } else {
-        quote! { #fn_body }
+        quote! {
+            {
+                let _: crate::Next;
+                let _: Next;
+                #fn_body
+            }
+        }
     };
 
     #[cfg(feature = "async")]
diff --git a/mling/src/cli/install.rs b/mling/src/cli/install.rs
index dd6dec4..cca7483 100644
--- a/mling/src/cli/install.rs
+++ b/mling/src/cli/install.rs
@@ -4,7 +4,7 @@ use mingling::{
     parser::Picker,
 };
 
-use crate::project_installer::install_all;
+use crate::{Next, project_installer::install_all};
 
 dispatcher!("install", InstallCommand => InstallEntry);
 
diff --git a/mling/src/cli/list.rs b/mling/src/cli/list.rs
index c3e4c05..ac9a65f 100644
--- a/mling/src/cli/list.rs
+++ b/mling/src/cli/list.rs
@@ -6,7 +6,7 @@ use mingling::{
 };
 use serde::Serialize;
 
-use crate::namespace_manager::list_namespaces;
+use crate::{Next, namespace_manager::list_namespaces};
 
 dispatcher!("ls-namespace", ListInstalledCommand => ListInstalledEntry);
 
diff --git a/mling/src/cli/namespace_mgr.rs b/mling/src/cli/namespace_mgr.rs
index 0f11332..4ea2229 100644
--- a/mling/src/cli/namespace_mgr.rs
+++ b/mling/src/cli/namespace_mgr.rs
@@ -4,7 +4,10 @@ use mingling::{
     parser::{Picker, Yes},
 };
 
-use crate::namespace_manager::{list_namespaces, remove_namespace, set_namespace_trusted};
+use crate::{
+    Next,
+    namespace_manager::{list_namespaces, remove_namespace, set_namespace_trusted},
+};
 
 dispatcher!("trust", TrustNamespaceCommand => TrustNamespaceEntry);
 dispatcher!("untrust", UntrustNamespaceCommand => UntrustNamespaceEntry);
diff --git a/mling/src/cli/read.rs b/mling/src/cli/read.rs
index 6352c94..82f8fd5 100644
--- a/mling/src/cli/read.rs
+++ b/mling/src/cli/read.rs
@@ -7,7 +7,10 @@ use mingling::{
 };
 use serde::Serialize;
 
-use crate::project_solver::{BinaryItem, solve_current_dir};
+use crate::{
+    Next,
+    project_solver::{BinaryItem, solve_current_dir},
+};
 
 dispatcher!("show-target-dir", ReadTargetDirCommand => ReadTargetDirEntry);
 dispatcher!("show-workspace-root", ReadWorkspaceRootCommand => ReadWorkspaceRootEntry);
-- 
cgit