use hir::Semantics;
use syntax::{
algo,
- ast::{self, make, AstNode, HasAttrs, HasModuleItem, HasVisibility, PathSegmentKind},
+ ast::{
+ self, edit_in_place::Removable, make, AstNode, HasAttrs, HasModuleItem, HasVisibility,
+ PathSegmentKind,
+ },
ted, Direction, NodeOrToken, SyntaxKind, SyntaxNode,
};
insert_use_(scope, &path, cfg.group, use_item);
}
-pub fn remove_path_if_in_use_stmt(path: &ast::Path) {
+pub fn ast_to_remove_for_path_in_use_stmt(path: &ast::Path) -> Option<Box<dyn Removable>> {
// FIXME: improve this
if path.parent_path().is_some() {
- return;
+ return None;
}
- if let Some(use_tree) = path.syntax().parent().and_then(ast::UseTree::cast) {
- if use_tree.use_tree_list().is_some() || use_tree.star_token().is_some() {
- return;
- }
- if let Some(use_) = use_tree.syntax().parent().and_then(ast::Use::cast) {
- use_.remove();
- return;
- }
- use_tree.remove();
+ let use_tree = path.syntax().parent().and_then(ast::UseTree::cast)?;
+ if use_tree.use_tree_list().is_some() || use_tree.star_token().is_some() {
+ return None;
+ }
+ if let Some(use_) = use_tree.syntax().parent().and_then(ast::Use::cast) {
+ return Some(Box::new(use_));
+ }
+ Some(Box::new(use_tree))
+}
+
+pub fn remove_path_if_in_use_stmt(path: &ast::Path) {
+ if let Some(node) = ast_to_remove_for_path_in_use_stmt(path) {
+ node.remove();
}
}