Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/syntax/src/ast/edit.rs')
| -rw-r--r-- | crates/syntax/src/ast/edit.rs | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/crates/syntax/src/ast/edit.rs b/crates/syntax/src/ast/edit.rs index 2448809a84..eaa36903bf 100644 --- a/crates/syntax/src/ast/edit.rs +++ b/crates/syntax/src/ast/edit.rs @@ -313,7 +313,7 @@ impl ast::UseTree { /// /// `prefix$0` -> `prefix::{self}` /// - /// `prefix$0::*` -> `prefix::{*}```` + /// `prefix$0::*` -> `prefix::{*}` pub fn split_prefix_with_editor(&self, editor: &SyntaxEditor, prefix: &ast::Path) { debug_assert_eq!(self.path(), Some(prefix.top_path())); @@ -388,3 +388,29 @@ fn test_increase_indent() { }" ); } + +#[test] +fn split_prefix_inserts_self() { + check_split_prefix("use foo;", "foo::{self}"); +} + +#[test] +fn split_prefix_preserves_rename() { + check_split_prefix("use foo as bar;", "foo::{self as bar}"); +} + +#[test] +fn split_prefix_wraps_glob() { + check_split_prefix("use foo::*;", "foo::{*}"); +} + +#[cfg(test)] +fn check_split_prefix(before: &str, expected: &str) { + let source = crate::SourceFile::parse(before, parser::Edition::CURRENT).tree(); + let use_tree = source.syntax().descendants().find_map(ast::UseTree::cast).unwrap(); + let (editor, use_tree) = SyntaxEditor::with_ast_node(&use_tree); + let prefix = use_tree.path().unwrap(); + use_tree.split_prefix_with_editor(&editor, &prefix); + let edit = editor.finish(); + assert_eq!(edit.new_root().to_string(), expected); +} |