Merge #8191

8191: syntax: return owned string instead of leaking string r=cynecx a=cynecx

Quick hack? to alleviate https://github.com/rust-analyzer/rust-analyzer/issues/8181#issuecomment-806019126. I haven't run any tests but this should affect performance since we are deallocating more.

r? @matklad 

Co-authored-by: cynecx <[email protected]>

4 files changed, 7 insertions, 5 deletions

diff --git a/crates/ide_assists/src/handlers/extract_struct_from_enum_variant.rs b/crates/ide_assists/src/handlers/extract_struct_from_enum_variant.rs
index 596c536a7..a8d6355bd 100644
--- a/crates/ide_assists/src/handlers/extract_struct_from_enum_variant.rs
+++ b/crates/ide_assists/src/handlers/extract_struct_from_enum_variant.rs
@@ -195,7 +195,7 @@ fn extract_struct_def(
 
 fn update_variant(rewriter: &mut SyntaxRewriter, variant: &ast::Variant) -> Option<()> {
     let name = variant.name()?;
-    let tuple_field = make::tuple_field(None, make::ty(name.text()));
+    let tuple_field = make::tuple_field(None, make::ty(&name.text()));
     let replacement = make::variant(
         name,
         Some(ast::FieldList::TupleFieldList(make::tuple_field_list(iter::once(tuple_field)))),
diff --git a/crates/ide_assists/src/handlers/generate_enum_is_method.rs b/crates/ide_assists/src/handlers/generate_enum_is_method.rs
index 7e181a480..a9f71a703 100644
--- a/crates/ide_assists/src/handlers/generate_enum_is_method.rs
+++ b/crates/ide_assists/src/handlers/generate_enum_is_method.rs
@@ -44,7 +44,7 @@ pub(crate) fn generate_enum_is_method(acc: &mut Assists, ctx: &AssistContext) ->
     };
 
     let enum_lowercase_name = to_lower_snake_case(&parent_enum.name()?.to_string());
-    let fn_name = format!("is_{}", &to_lower_snake_case(variant_name.text()));
+    let fn_name = format!("is_{}", &to_lower_snake_case(&variant_name.text()));
 
     // Return early if we've found an existing new fn
     let impl_def = find_struct_impl(&ctx, &parent_enum, &fn_name)?;
diff --git a/crates/ide_assists/src/handlers/generate_enum_projection_method.rs b/crates/ide_assists/src/handlers/generate_enum_projection_method.rs
index 871bcab50..e2f572ba3 100644
--- a/crates/ide_assists/src/handlers/generate_enum_projection_method.rs
+++ b/crates/ide_assists/src/handlers/generate_enum_projection_method.rs
@@ -132,7 +132,8 @@ fn generate_enum_projection_method(
         ast::StructKind::Unit => return None,
     };
 
-    let fn_name = format!("{}_{}", props.fn_name_prefix, &to_lower_snake_case(variant_name.text()));
+    let fn_name =
+        format!("{}_{}", props.fn_name_prefix, &to_lower_snake_case(&variant_name.text()));
 
     // Return early if we've found an existing new fn
     let impl_def = find_struct_impl(&ctx, &parent_enum, &fn_name)?;
diff --git a/crates/ide_assists/src/handlers/replace_derive_with_manual_impl.rs b/crates/ide_assists/src/handlers/replace_derive_with_manual_impl.rs
index 4f0ef52ca..f872d20c8 100644
--- a/crates/ide_assists/src/handlers/replace_derive_with_manual_impl.rs
+++ b/crates/ide_assists/src/handlers/replace_derive_with_manual_impl.rs
@@ -165,7 +165,7 @@ fn impl_def_from_trait(
     }
     let impl_def = make::impl_trait(
         trait_path.clone(),
-        make::path_unqualified(make::path_segment(make::name_ref(annotated_name.text()))),
+        make::path_unqualified(make::path_segment(make::name_ref(&annotated_name.text()))),
     );
     let (impl_def, first_assoc_item) =
         add_trait_assoc_items_to_impl(sema, trait_items, trait_, impl_def, target_scope);
@@ -178,12 +178,13 @@ fn update_attribute(
     trait_name: &ast::NameRef,
     attr: &ast::Attr,
 ) {
+    let trait_name = trait_name.text();
     let new_attr_input = input
         .syntax()
         .descendants_with_tokens()
         .filter(|t| t.kind() == IDENT)
         .filter_map(|t| t.into_token().map(|t| t.text().to_string()))
-        .filter(|t| t != trait_name.text())
+        .filter(|t| t != &trait_name)
         .collect::<Vec<_>>();
     let has_more_derives = !new_attr_input.is_empty();