Reverse fixups

[rust.git] / crates / mbe / src / syntax_bridge.rs

diff --git a/crates/mbe/src/syntax_bridge.rs b/crates/mbe/src/syntax_bridge.rs
index d5639cadc4d326ce965a03e130d8783597be9724..d3489813e175e6742405f63840b3d978fd14d538 100644 (file)
--- a/crates/mbe/src/syntax_bridge.rs
+++ b/crates/mbe/src/syntax_bridge.rs
@@ -1,7 +1,7 @@
 //! Conversions between [`SyntaxNode`] and [`tt::TokenTree`].
 
 use rustc_hash::{FxHashMap, FxHashSet};
-use stdx::non_empty_vec::NonEmptyVec;
+use stdx::{always, non_empty_vec::NonEmptyVec};
 use syntax::{
     ast::{self, make::tokens::doc_comment},
     AstToken, Parse, PreorderWithTokens, SmolStr, SyntaxElement, SyntaxKind,
@@ -30,6 +30,8 @@ pub fn syntax_node_to_token_tree_censored(
     let mut c = Convertor::new(node, global_offset, replace, append);
     let subtree = convert_tokens(&mut c);
     c.id_alloc.map.shrink_to_fit();
+    always!(c.replace.is_empty());
+    always!(c.append.is_empty());
     (subtree, c.id_alloc.map)
 }