Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/ide-assists/src/utils/suggest_name.rs')
| -rw-r--r-- | crates/ide-assists/src/utils/suggest_name.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/crates/ide-assists/src/utils/suggest_name.rs b/crates/ide-assists/src/utils/suggest_name.rs index 16704d598e..caf1200887 100644 --- a/crates/ide-assists/src/utils/suggest_name.rs +++ b/crates/ide-assists/src/utils/suggest_name.rs @@ -58,6 +58,32 @@ const USELESS_METHODS: &[&str] = &[ "into_future", ]; +pub(crate) fn for_unique_generic_name( + name: &str, + existing_params: &ast::GenericParamList, +) -> SmolStr { + let param_names = existing_params + .generic_params() + .map(|param| match param { + ast::GenericParam::TypeParam(t) => t.name().unwrap().to_string(), + p => p.to_string(), + }) + .collect_vec(); + let mut name = name.to_string(); + let base_len = name.len(); + // 4*len bytes for base, and 2 bytes for 2 digits + name.reserve(4 * base_len + 2); + + let mut count = 0; + while param_names.contains(&name) { + name.truncate(base_len); + name.push_str(&count.to_string()); + count += 1; + } + + name.into() +} + pub(crate) fn for_generic_parameter(ty: &ast::ImplTraitType) -> SmolStr { let c = ty .type_bound_list() |