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make ast::UseTree::wrap_in_tree_list
more robust
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parent
7219414e81
commit
da798bccf7
1 changed files with 8 additions and 3 deletions
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@ -538,9 +538,13 @@ impl ast::UseTree {
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/// `foo::bar` -> `{foo::bar}`
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///
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/// `{foo::bar}` -> `{foo::bar}`
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pub fn wrap_in_tree_list(&self) {
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if self.path().is_none() {
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return;
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pub fn wrap_in_tree_list(&self) -> Option<()> {
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if self.use_tree_list().is_some()
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&& self.path().is_none()
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&& self.star_token().is_none()
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&& self.rename().is_none()
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{
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return None;
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}
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let subtree = self.clone_subtree().clone_for_update();
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ted::remove_all_iter(self.syntax().children_with_tokens());
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@ -548,6 +552,7 @@ impl ast::UseTree {
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self.syntax(),
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make::use_tree_list(once(subtree)).clone_for_update().syntax(),
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);
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Some(())
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}
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}
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