build: Migrate box patterns to deref patterns and update nightly

.changeset/fresh-deref-patterns.md

@@ -0,0 +1,8 @@
+---
+"@swc/plugin-styled-jsx": major
+"@swc/plugin-swc-confidential": major
+"@swc/plugin-swc-magic": major
+"@swc/plugin-swc-sdk": major
+---
+
+Migrate from Rust `box_patterns` to `deref_patterns` and update the pinned toolchain to `nightly-2026-04-10`.

packages/styled-jsx/src/lib.rs

@@ -1,5 +1,5 @@
 #![allow(clippy::not_unsafe_ptr_arg_deref)]
-#![feature(box_patterns)]
+#![feature(deref_patterns)]
 
 use styled_jsx::{visitor, visitor::Config};
 use swc_core::{

packages/styled-jsx/transform/src/lib.rs

@@ -1,4 +1,4 @@
-#![feature(box_patterns)]
+#![feature(deref_patterns)]
 pub mod style;
 mod transform_css_lightningcss;
 mod transform_css_swc;

packages/styled-jsx/transform/src/visitor.rs

@@ -1032,7 +1032,7 @@ fn add_hash_statement((id, hash): (Id, String)) -> Stmt {
 
 fn is_styled_css_import(item: &ModuleItem) -> bool {
     if let ModuleItem::ModuleDecl(ModuleDecl::Import(ImportDecl {
-        src: box Str { value, .. },
+        src: Str { value, .. },
         ..
     })) = item
     {

packages/swc-confidential/src/lib.rs

@@ -1,5 +1,5 @@
 #![allow(clippy::not_unsafe_ptr_arg_deref)]
-#![feature(box_patterns)]
+#![feature(deref_patterns)]
 
 use swc_core::{
     ecma::{ast::Program, visit::VisitMutWith},

packages/swc-confidential/transform/src/lib.rs

@@ -1,4 +1,4 @@
-#![feature(box_patterns)]
+#![feature(deref_patterns)]
 
 use magic_crypt::{new_magic_crypt, MagicCryptTrait};
 use serde::Deserialize;

packages/swc-magic/src/lib.rs

@@ -1,5 +1,5 @@
 #![allow(clippy::not_unsafe_ptr_arg_deref)]
-#![feature(box_patterns)]
+#![feature(deref_patterns)]
 
 use swc_core::{
     ecma::{ast::Program, visit::VisitMutWith},

packages/swc-magic/transform/src/import_analyzer.rs

@@ -26,7 +26,7 @@ impl ImportMap {
             }
 
             Expr::Member(MemberExpr {
-                obj: box Expr::Ident(obj),
+                obj: Expr::Ident(obj),
                 prop: MemberProp::Ident(prop),
                 ..
             }) => {

packages/swc-magic/transform/src/lib.rs

@@ -1,4 +1,4 @@
-#![feature(box_patterns)]
+#![feature(deref_patterns)]
 
 use import_analyzer::ImportMap;
 use serde::Deserialize;

packages/swc-sdk/src/lib.rs

@@ -1,5 +1,5 @@
 #![allow(clippy::not_unsafe_ptr_arg_deref)]
-#![feature(box_patterns)]
+#![feature(deref_patterns)]
 
 use swc_core::{
     ecma::{ast::Program, visit::VisitMutWith},

packages/swc-sdk/transform/src/import_analyzer.rs

@@ -35,7 +35,7 @@ impl ImportMap {
             }
 
             Expr::Member(MemberExpr {
-                obj: box Expr::Ident(obj),
+                obj: Expr::Ident(obj),
                 prop: MemberProp::Ident(prop),
                 ..
             }) => {
@@ -75,7 +75,7 @@ impl ImportMap {
             }
 
             Expr::Member(MemberExpr {
-                obj: box Expr::Ident(obj),
+                obj: Expr::Ident(obj),
                 prop: MemberProp::Ident(prop),
                 ..
             }) => {

packages/swc-sdk/transform/src/lib.rs

@@ -1,4 +1,4 @@
-#![feature(box_patterns)]
+#![feature(deref_patterns)]
 #![feature(never_type)]
 
 use swc_common::{comments::Comments, errors::HANDLER, util::take::Take, Mark, DUMMY_SP};

rust-toolchain.toml

@@ -1,5 +1,5 @@
 [toolchain]
-channel    = "nightly-2025-05-06"
+channel    = "nightly-2026-04-10"
 components = ["rustfmt", "clippy"]
 profile    = "minimal"
 targets    = ["wasm32-unknown-unknown", "wasm32-wasip1"]