Merge #3718

3718: Fix couple of assists r=matklad a=matklad

bors r+
🤖

Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>

crates/ra_assists/src/handlers/change_visibility.rs

@@ -2,13 +2,14 @@ use ra_syntax::{
     ast::{self, NameOwner, VisibilityOwner},
     AstNode,
     SyntaxKind::{
-        ATTR, COMMENT, CONST_DEF, ENUM_DEF, FN_DEF, IDENT, MODULE, STRUCT_DEF, TRAIT_DEF,
-        VISIBILITY, WHITESPACE,
+        ATTR, COMMENT, CONST_DEF, ENUM_DEF, FN_DEF, MODULE, STRUCT_DEF, TRAIT_DEF, VISIBILITY,
+        WHITESPACE,
     },
     SyntaxNode, TextUnit, T,
 };
 
 use crate::{Assist, AssistCtx, AssistId};
+use test_utils::tested_by;
 
 // Assist: change_visibility
 //
@@ -47,13 +48,16 @@ fn add_vis(ctx: AssistCtx) -> Option<Assist> {
         }
         (vis_offset(&parent), keyword.text_range())
     } else {
-        let ident = ctx.token_at_offset().find(|leaf| leaf.kind() == IDENT)?;
-        let field = ident.parent().ancestors().find_map(ast::RecordFieldDef::cast)?;
-        if field.name()?.syntax().text_range() != ident.text_range() && field.visibility().is_some()
-        {
+        let field_name: ast::Name = ctx.find_node_at_offset()?;
+        let field = field_name.syntax().ancestors().find_map(ast::RecordFieldDef::cast)?;
+        if field.name()? != field_name {
+            tested_by!(change_visibility_field_false_positive);
             return None;
         }
-        (vis_offset(field.syntax()), ident.text_range())
+        if field.visibility().is_some() {
+            return None;
+        }
+        (vis_offset(field.syntax()), field_name.syntax().text_range())
     };
 
     ctx.add_assist(AssistId("change_visibility"), "Change visibility to pub(crate)", |edit| {
@@ -98,8 +102,11 @@ fn change_vis(ctx: AssistCtx, vis: ast::Visibility) -> Option<Assist> {
 
 #[cfg(test)]
 mod tests {
+    use test_utils::covers;
+
+    use crate::helpers::{check_assist, check_assist_not_applicable, check_assist_target};
+
     use super::*;
-    use crate::helpers::{check_assist, check_assist_target};
 
     #[test]
     fn change_visibility_adds_pub_crate_to_items() {
@@ -120,8 +127,17 @@ mod tests {
     fn change_visibility_works_with_struct_fields() {
         check_assist(
             change_visibility,
-            "struct S { <|>field: u32 }",
-            "struct S { <|>pub(crate) field: u32 }",
+            r"struct S { <|>field: u32 }",
+            r"struct S { <|>pub(crate) field: u32 }",
+        )
+    }
+
+    #[test]
+    fn change_visibility_field_false_positive() {
+        covers!(change_visibility_field_false_positive);
+        check_assist_not_applicable(
+            change_visibility,
+            r"struct S { field: [(); { let <|>x = ();}] }",
         )
     }
 
@@ -144,7 +160,7 @@ mod tests {
     fn change_visibility_handles_comment_attrs() {
         check_assist(
             change_visibility,
-            "
+            r"
             /// docs
 
             // comments
@@ -152,7 +168,7 @@ mod tests {
             #[derive(Debug)]
             <|>struct Foo;
             ",
-            "
+            r"
             /// docs
 
             // comments

crates/ra_assists/src/marks.rs

@@ -7,4 +7,5 @@ test_utils::marks![
     not_applicable_outside_of_bind_pat
     test_not_inline_mut_variable
     test_not_applicable_if_variable_unused
+    change_visibility_field_false_positive
 ];

crates/rust-analyzer/src/main_loop/handlers.rs

@@ -734,19 +734,29 @@ pub fn handle_code_action(
         res.push(fix.action.clone());
     }
 
-    let mut grouped_assists: FxHashMap<String, Vec<Assist>> = FxHashMap::default();
+    let mut grouped_assists: FxHashMap<String, (usize, Vec<Assist>)> = FxHashMap::default();
     for assist in world.analysis().assists(FileRange { file_id, range })?.into_iter() {
         match &assist.group_label {
-            Some(label) => grouped_assists.entry(label.to_owned()).or_default().push(assist),
-            None => res.push(create_single_code_action(assist, &world)?.into()),
+            Some(label) => grouped_assists
+                .entry(label.to_owned())
+                .or_insert_with(|| {
+                    let idx = res.len();
+                    let dummy = Command::new(String::new(), String::new(), None);
+                    res.push(dummy.into());
+                    (idx, Vec::new())
+                })
+                .1
+                .push(assist),
+            None => {
+                res.push(create_single_code_action(assist, &world)?.into());
+            }
         }
     }
 
-    for (group_label, assists) in grouped_assists {
+    for (group_label, (idx, assists)) in grouped_assists {
         if assists.len() == 1 {
-            res.push(
-                create_single_code_action(assists.into_iter().next().unwrap(), &world)?.into(),
-            );
+            res[idx] =
+                create_single_code_action(assists.into_iter().next().unwrap(), &world)?.into();
         } else {
             let title = group_label;
 
@@ -760,8 +770,7 @@ pub fn handle_code_action(
                 command: "rust-analyzer.selectAndApplySourceChange".to_string(),
                 arguments: Some(vec![serde_json::Value::Array(arguments)]),
             });
-            res.push(
-                CodeAction {
+            res[idx] = CodeAction {
                 title,
                 kind: None,
                 diagnostics: None,
@@ -769,8 +778,7 @@ pub fn handle_code_action(
                 command,
                 is_preferred: None,
             }
-                .into(),
-            );
+            .into();
         }
     }