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update calc_depth

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This commit is contained in:
k-nasa 2021-10-13 22:06:53 +09:00
parent b3930599a7
commit bc29b75b92
1 changed files with 8 additions and 4 deletions
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12
crates/ide_assists/src/utils.rs
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@ -294,7 +294,7 @@ pub(crate) fn does_nested_pattern(pat: &ast::Pat) -> bool {
false
}
fn calc_depth(pat: &ast::Pat, mut depth: usize) -> usize {
fn calc_depth(pat: &ast::Pat, depth: usize) -> usize {
match pat {
ast::Pat::IdentPat(_)
| ast::Pat::BoxPat(_)
@ -312,12 +312,16 @@ fn calc_depth(pat: &ast::Pat, mut depth: usize) -> usize {
| ast::Pat::TuplePat(_)
| ast::Pat::ConstBlockPat(_) => 1,
// TODO implement
// TODO: Other patterns may also be nested. Currently it simply supports only `TupleStructPat`
ast::Pat::TupleStructPat(pat) => {
let mut max_depth = depth;
for p in pat.fields() {
depth += calc_depth(&p, depth + 1);
let d = calc_depth(&p, depth + 1);
if d > max_depth {
max_depth = d
}
}
depth
max_depth
}
}
}