2 files changed, 8 insertions, 3 deletions

diff --git a/xtask/src/codegen.rs b/xtask/src/codegen.rs
index e6ba2009c..678b40133 100644
--- a/xtask/src/codegen.rs
+++ b/xtask/src/codegen.rs
@@ -24,6 +24,7 @@ const ERR_INLINE_TESTS_DIR: &str = "crates/ra_syntax/test_data/parser/inline/err
 
 const SYNTAX_KINDS: &str = "crates/ra_parser/src/syntax_kind/generated.rs";
 const AST_NODES: &str = "crates/ra_syntax/src/ast/generated/nodes.rs";
+const AST_TOKENS: &str = "crates/ra_syntax/src/ast/generated/tokens.rs";
 
 const ASSISTS_DIR: &str = "crates/ra_assists/src/handlers";
 const ASSISTS_TESTS: &str = "crates/ra_assists/src/doc_tests/generated.rs";
diff --git a/xtask/src/codegen/gen_syntax.rs b/xtask/src/codegen/gen_syntax.rs
index c2734d638..75bcd1973 100644
--- a/xtask/src/codegen/gen_syntax.rs
+++ b/xtask/src/codegen/gen_syntax.rs
@@ -22,9 +22,13 @@ pub fn generate_syntax(mode: Mode) -> Result<()> {
     let syntax_kinds = generate_syntax_kinds(KINDS_SRC)?;
     update(syntax_kinds_file.as_path(), &syntax_kinds, mode)?;
 
-    let ast_file = project_root().join(codegen::AST_NODES);
-    let ast = generate_ast(KINDS_SRC, AST_SRC)?;
-    update(ast_file.as_path(), &ast, mode)?;
+    let ast_nodes_file = project_root().join(codegen::AST_NODES);
+    let contents = generate_ast(KINDS_SRC, AST_SRC)?;
+    update(ast_nodes_file.as_path(), &contents, mode)?;
+
+    let ast_tokens_file = project_root().join(codegen::AST_TOKENS);
+    let contents = "//! Generated file, do not edit by hand, see `xtask/src/codegen`";
+    update(ast_tokens_file.as_path(), &contents, mode)?;
 
     Ok(())
 }