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-rw-r--r--crates/ra_syntax/src/ast/edit.rs18
-rw-r--r--crates/ra_syntax/src/ast/make.rs21
2 files changed, 39 insertions, 0 deletions
diff --git a/crates/ra_syntax/src/ast/edit.rs b/crates/ra_syntax/src/ast/edit.rs
index 1858e2b6c..e4cdccdb4 100644
--- a/crates/ra_syntax/src/ast/edit.rs
+++ b/crates/ra_syntax/src/ast/edit.rs
@@ -259,6 +259,24 @@ impl ast::UseItem {
259 } 259 }
260} 260}
261 261
262impl ast::UseTree {
263 #[must_use]
264 pub fn with_path(&self, path: ast::Path) -> ast::UseTree {
265 if let Some(old) = self.path() {
266 return replace_descendants(self, iter::once((old, path)));
267 }
268 self.clone()
269 }
270
271 #[must_use]
272 pub fn with_use_tree_list(&self, use_tree_list: ast::UseTreeList) -> ast::UseTree {
273 if let Some(old) = self.use_tree_list() {
274 return replace_descendants(self, iter::once((old, use_tree_list)));
275 }
276 self.clone()
277 }
278}
279
262#[must_use] 280#[must_use]
263pub fn strip_attrs_and_docs<N: ast::AttrsOwner>(node: &N) -> N { 281pub fn strip_attrs_and_docs<N: ast::AttrsOwner>(node: &N) -> N {
264 N::cast(strip_attrs_and_docs_inner(node.syntax().clone())).unwrap() 282 N::cast(strip_attrs_and_docs_inner(node.syntax().clone())).unwrap()
diff --git a/crates/ra_syntax/src/ast/make.rs b/crates/ra_syntax/src/ast/make.rs
index 0da24560e..22c54f363 100644
--- a/crates/ra_syntax/src/ast/make.rs
+++ b/crates/ra_syntax/src/ast/make.rs
@@ -25,6 +25,27 @@ fn path_from_text(text: &str) -> ast::Path {
25 ast_from_text(text) 25 ast_from_text(text)
26} 26}
27 27
28pub fn use_tree(
29 path: ast::Path,
30 use_tree_list: Option<ast::UseTreeList>,
31 alias: Option<ast::Alias>,
32) -> ast::UseTree {
33 let mut buf = "use ".to_string();
34 buf += &path.syntax().to_string();
35 if let Some(use_tree_list) = use_tree_list {
36 buf += &format!("::{}", use_tree_list.syntax());
37 }
38 if let Some(alias) = alias {
39 buf += &format!(" {}", alias.syntax());
40 }
41 ast_from_text(&buf)
42}
43
44pub fn use_tree_list(use_trees: impl IntoIterator<Item = ast::UseTree>) -> ast::UseTreeList {
45 let use_trees = use_trees.into_iter().map(|it| it.syntax().clone()).join(", ");
46 ast_from_text(&format!("use {{{}}};", use_trees))
47}
48
28pub fn record_field(name: ast::NameRef, expr: Option<ast::Expr>) -> ast::RecordField { 49pub fn record_field(name: ast::NameRef, expr: Option<ast::Expr>) -> ast::RecordField {
29 return match expr { 50 return match expr {
30 Some(expr) => from_text(&format!("{}: {}", name.syntax(), expr.syntax())), 51 Some(expr) => from_text(&format!("{}: {}", name.syntax(), expr.syntax())),