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Rerail split_import API onto AST

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The code is more verbose and less efficient now, but should be
reusable in add_import context as well
This commit is contained in:
Aleksey Kladov 2020-03-05 19:03:14 +01:00
parent d75577fcee
commit ea0c124219
3 changed files with 72 additions and 19 deletions
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18
crates/ra_syntax/src/ast/edit.rs
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@ -259,6 +259,24 @@ impl ast::UseItem {
}
}
impl ast::UseTree {
#[must_use]
pub fn with_path(&self, path: ast::Path) -> ast::UseTree {
if let Some(old) = self.path() {
return replace_descendants(self, iter::once((old, path)));
}
self.clone()
}
#[must_use]
pub fn with_use_tree_list(&self, use_tree_list: ast::UseTreeList) -> ast::UseTree {
if let Some(old) = self.use_tree_list() {
return replace_descendants(self, iter::once((old, use_tree_list)));
}
self.clone()
}
}
#[must_use]
pub fn strip_attrs_and_docs<N: ast::AttrsOwner>(node: &N) -> N {
N::cast(strip_attrs_and_docs_inner(node.syntax().clone())).unwrap()