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refactor(11422): make number unsigned, nest enums into each other

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This commit is contained in:
Moritz Vetter 2022-02-24 21:29:26 +01:00
parent 8848186213
commit 71d158b6ba
1 changed files with 11 additions and 13 deletions
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24
crates/ide_db/src/helpers.rs
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@ -247,7 +247,7 @@ fn eq_label_lt(lt1: &Option<ast::Lifetime>, lt2: &Option<ast::Lifetime>) -> bool
struct TreeWithDepthIterator {
preorder: Preorder<RustLanguage>,
depth: i32,
depth: u32,
}
impl TreeWithDepthIterator {
@ -258,33 +258,31 @@ impl TreeWithDepthIterator {
}
impl<'a> Iterator for TreeWithDepthIterator {
type Item = (ast::Expr, i32);
type Item = (ast::Expr, u32);
fn next(&mut self) -> Option<Self::Item> {
while let Some((event, expr)) = self.preorder.find_map(|ev| match ev {
WalkEvent::Enter(it) => Some(WalkEvent::Enter(())).zip(ast::Expr::cast(it)),
WalkEvent::Leave(it) => Some(WalkEvent::Leave(())).zip(ast::Expr::cast(it)),
while let Some(event) = self.preorder.find_map(|ev| match ev {
WalkEvent::Enter(it) => ast::Expr::cast(it).map(WalkEvent::Enter),
WalkEvent::Leave(it) => ast::Expr::cast(it).map(WalkEvent::Leave),
}) {
match (event, expr) {
(
WalkEvent::Enter(_),
match event {
WalkEvent::Enter(
ast::Expr::LoopExpr(_) | ast::Expr::WhileExpr(_) | ast::Expr::ForExpr(_),
) => {
self.depth += 1;
}
(
WalkEvent::Leave(_),
WalkEvent::Leave(
ast::Expr::LoopExpr(_) | ast::Expr::WhileExpr(_) | ast::Expr::ForExpr(_),
) => {
self.depth -= 1;
}
(WalkEvent::Enter(_), ast::Expr::BlockExpr(e)) if e.label().is_some() => {
WalkEvent::Enter(ast::Expr::BlockExpr(e)) if e.label().is_some() => {
self.depth += 1;
}
(WalkEvent::Leave(_), ast::Expr::BlockExpr(e)) if e.label().is_some() => {
WalkEvent::Leave(ast::Expr::BlockExpr(e)) if e.label().is_some() => {
self.depth -= 1;
}
(WalkEvent::Enter(_), expr) => return Some((expr, self.depth)),
WalkEvent::Enter(expr) => return Some((expr, self.depth)),
_ => (),
}
}