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-rw-r--r--crates/syntax/src/ast/edit_in_place.rs19
1 files changed, 7 insertions, 12 deletions
diff --git a/crates/syntax/src/ast/edit_in_place.rs b/crates/syntax/src/ast/edit_in_place.rs
index 04f97f368..168355555 100644
--- a/crates/syntax/src/ast/edit_in_place.rs
+++ b/crates/syntax/src/ast/edit_in_place.rs
@@ -195,18 +195,13 @@ impl ast::GenericParamList {
195 pub fn add_generic_param(&self, generic_param: ast::GenericParam) { 195 pub fn add_generic_param(&self, generic_param: ast::GenericParam) {
196 match self.generic_params().last() { 196 match self.generic_params().last() {
197 Some(last_param) => { 197 Some(last_param) => {
198 let mut elems = Vec::new(); 198 let position = Position::after(last_param.syntax());
199 if !last_param 199 let elements = vec![
200 .syntax() 200 make::token(T![,]).into(),
201 .siblings_with_tokens(Direction::Next) 201 make::tokens::single_space().into(),
202 .any(|it| it.kind() == T![,]) 202 generic_param.syntax().clone().into(),
203 { 203 ];
204 elems.push(make::token(T![,]).into()); 204 ted::insert_all(position, elements);
205 elems.push(make::tokens::single_space().into());
206 };
207 elems.push(generic_param.syntax().clone().into());
208 let after_last_param = Position::after(last_param.syntax());
209 ted::insert_all(after_last_param, elems);
210 } 205 }
211 None => { 206 None => {
212 let after_l_angle = Position::after(self.l_angle_token().unwrap()); 207 let after_l_angle = Position::after(self.l_angle_token().unwrap());