From 7cce17d66214025e819d5a2af12861ae6a236c55 Mon Sep 17 00:00:00 2001
From: "Lan, Jian" <shapeless.cat@gmail.com>
Date: Sun, 1 Mar 2026 01:19:05 +0800
Subject: [PATCH] refactor: make qualified functions `const fn`

---
 patchable-macro/src/context.rs | 6 +++---
 patchable/tests/common/mod.rs  | 2 +-
 patchable/tests/no_serde.rs    | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/patchable-macro/src/context.rs b/patchable-macro/src/context.rs
index 92756e5..f6f550f 100644
--- a/patchable-macro/src/context.rs
+++ b/patchable-macro/src/context.rs
@@ -306,19 +306,19 @@ impl<'a> FieldAction<'a> {
         }
     }
 
-    fn member(&self) -> &FieldMember<'a> {
+    const fn member(&self) -> &FieldMember<'a> {
         match self {
             FieldAction::Keep { member, .. } | FieldAction::Patch { member, .. } => member,
         }
     }
 
-    fn ty(&self) -> &'a Type {
+    const fn ty(&self) -> &'a Type {
         match self {
             FieldAction::Keep { ty, .. } | FieldAction::Patch { ty, .. } => ty,
         }
     }
 
-    fn is_patch(&self) -> bool {
+    const fn is_patch(&self) -> bool {
         matches!(self, FieldAction::Patch { .. })
     }
 
diff --git a/patchable/tests/common/mod.rs b/patchable/tests/common/mod.rs
index 8969b02..50cee40 100644
--- a/patchable/tests/common/mod.rs
+++ b/patchable/tests/common/mod.rs
@@ -1,7 +1,7 @@
 use patchable::patchable_model;
 use serde::{Deserialize, Serialize};
 
-pub fn identity(x: &i32) -> i32 {
+pub const fn identity(x: &i32) -> i32 {
     *x
 }
 
diff --git a/patchable/tests/no_serde.rs b/patchable/tests/no_serde.rs
index 69b8267..9172388 100644
--- a/patchable/tests/no_serde.rs
+++ b/patchable/tests/no_serde.rs
@@ -1,6 +1,6 @@
 use patchable::patchable_model;
 
-fn plus_one(x: i32) -> i32 {
+const fn plus_one(x: i32) -> i32 {
     x + 1
 }