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fix: Don't produce `ChangedAncestor` for `SyntaxToken`s
| -rw-r--r-- | crates/syntax/src/syntax_editor.rs | 48 | ||||
| -rw-r--r-- | crates/syntax/src/syntax_editor/edit_algo.rs | 14 |
2 files changed, 52 insertions, 10 deletions
diff --git a/crates/syntax/src/syntax_editor.rs b/crates/syntax/src/syntax_editor.rs index 7e5d0f27e0..992a847663 100644 --- a/crates/syntax/src/syntax_editor.rs +++ b/crates/syntax/src/syntax_editor.rs @@ -327,7 +327,7 @@ mod tests { use crate::{ ast::{self, make, syntax_factory::SyntaxFactory}, - AstNode, + AstNode, SyntaxKind, }; use super::*; @@ -540,4 +540,50 @@ mod tests { }"#]]; expect.assert_eq(&edit.new_root.to_string()); } + + #[test] + fn test_replace_token_in_parent() { + let parent_fn = make::fn_( + None, + make::name("it"), + None, + None, + make::param_list(None, []), + make::block_expr([], Some(make::expr_unit())), + Some(make::ret_type(make::ty_unit())), + false, + false, + false, + false, + ); + + let mut editor = SyntaxEditor::new(parent_fn.syntax().clone()); + + if let Some(ret_ty) = parent_fn.ret_type() { + editor.delete(ret_ty.syntax().clone()); + + if let Some(SyntaxElement::Token(token)) = ret_ty.syntax().next_sibling_or_token() { + if token.kind().is_trivia() { + editor.delete(token); + } + } + } + + if let Some(tail) = parent_fn.body().unwrap().tail_expr() { + // FIXME: We do this because `xtask tidy` will not allow us to have trailing whitespace in the expect string. + if let Some(SyntaxElement::Token(token)) = tail.syntax().prev_sibling_or_token() { + if let SyntaxKind::WHITESPACE = token.kind() { + editor.delete(token); + } + } + editor.delete(tail.syntax().clone()); + } + + let edit = editor.finish(); + + let expect = expect![[r#" +fn it() { +}"#]]; + expect.assert_eq(&edit.new_root.to_string()); + } } diff --git a/crates/syntax/src/syntax_editor/edit_algo.rs b/crates/syntax/src/syntax_editor/edit_algo.rs index 44a1fae23b..71b69dbec1 100644 --- a/crates/syntax/src/syntax_editor/edit_algo.rs +++ b/crates/syntax/src/syntax_editor/edit_algo.rs @@ -128,13 +128,14 @@ pub(super) fn apply_edits(editor: SyntaxEditor) -> SyntaxEdit { // Add to changed ancestors, if applicable match change { - Change::Insert(_, _) | Change::InsertAll(_, _) => {} - Change::Replace(target, _) | Change::ReplaceWithMany(target, _) => { + Change::Replace(SyntaxElement::Node(target), _) + | Change::ReplaceWithMany(SyntaxElement::Node(target), _) => { changed_ancestors.push_back(ChangedAncestor::single(target, change_index)) } Change::ReplaceAll(range, _) => { changed_ancestors.push_back(ChangedAncestor::multiple(range, change_index)) } + _ => (), } } @@ -304,13 +305,8 @@ enum ChangedAncestorKind { } impl ChangedAncestor { - fn single(element: &SyntaxElement, change_index: usize) -> Self { - let kind = match element { - SyntaxElement::Node(node) => ChangedAncestorKind::Single { node: node.clone() }, - SyntaxElement::Token(token) => { - ChangedAncestorKind::Single { node: token.parent().unwrap() } - } - }; + fn single(node: &SyntaxNode, change_index: usize) -> Self { + let kind = ChangedAncestorKind::Single { node: node.clone() }; Self { kind, change_index } } |