From f1940c1d41deb4fc74439f4dba69e30bf703d0ad Mon Sep 17 00:00:00 2001
From: LucaCappelletti94 <cappelletti.luca94@gmail.com>
Date: Wed, 20 May 2026 15:30:28 +0200
Subject: [PATCH 1/2] Make `visitor` feature no_std-compatible

---
 derive/src/visit.rs | 4 ++--
 src/ast/visitor.rs  | 5 ++++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/derive/src/visit.rs b/derive/src/visit.rs
index baf3eb583b..cb02733b77 100644
--- a/derive/src/visit.rs
+++ b/derive/src/visit.rs
@@ -62,11 +62,11 @@ pub(crate) fn derive_visit(
             fn visit<V: sqlparser::ast::#visitor_trait>(
                 &#modifier self,
                 visitor: &mut V
-            ) -> ::std::ops::ControlFlow<V::Break> {
+            ) -> ::core::ops::ControlFlow<V::Break> {
                 #pre_visit
                 #children
                 #post_visit
-                ::std::ops::ControlFlow::Continue(())
+                ::core::ops::ControlFlow::Continue(())
             }
         }
     };
diff --git a/src/ast/visitor.rs b/src/ast/visitor.rs
index 30673dfa03..b14ca544a8 100644
--- a/src/ast/visitor.rs
+++ b/src/ast/visitor.rs
@@ -17,9 +17,12 @@
 
 //! Recursive visitors for ast Nodes. See [`Visitor`] for more details.
 
-use crate::ast::{Expr, ObjectName, Query, Select, Statement, TableFactor, ValueWithSpan};
+#[cfg(not(feature = "std"))]
+use alloc::{boxed::Box, string::String, vec::Vec};
 use core::ops::ControlFlow;
 
+use crate::ast::{Expr, ObjectName, Query, Select, Statement, TableFactor, ValueWithSpan};
+
 /// A type that can be visited by a [`Visitor`]. See [`Visitor`] for
 /// recursively visiting parsed SQL statements.
 ///

From b14285d1d03e8f859f403b5430843c933531be9e Mon Sep 17 00:00:00 2001
From: LucaCappelletti94 <cappelletti.luca94@gmail.com>
Date: Wed, 20 May 2026 15:30:33 +0200
Subject: [PATCH 2/2] CI: check `visitor` feature under no_std

---
 .github/workflows/rust.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 2e1da6941f..628444a86a 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -82,6 +82,7 @@ jobs:
         with:
           targets: 'thumbv6m-none-eabi'
       - run: cargo check --no-default-features --target thumbv6m-none-eabi
+      - run: cargo check --no-default-features --features visitor --target thumbv6m-none-eabi
 
   test:
     strategy: