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new_without_default: ignore const generics/lifetime params on fn new

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This commit is contained in:
Alex Macleod 2022-07-04 14:03:11 +00:00
parent b15f06e74f
commit fec4593082
2 changed files with 17 additions and 9 deletions
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12
clippy_lints/src/new_without_default.rs
View file

@ -88,15 +88,9 @@ impl<'tcx> LateLintPass<'tcx> for NewWithoutDefault {
// shouldn't be implemented when it is hidden in docs
return;
}
if impl_item
.generics
.params
.iter()
.any(|gen| matches!(gen.kind, hir::GenericParamKind::Type { .. }))
{
// when the result of `new()` depends on a type parameter we should not require
// an
// impl of `Default`
if !impl_item.generics.params.is_empty() {
// when the result of `new()` depends on a parameter we should not require
// an impl of `Default`
return;
}
if_chain! {

14
tests/ui/new_without_default.rs
View file

@ -212,3 +212,17 @@ impl DocHidden {
}
fn main() {}
pub struct IgnoreConstGenericNew(usize);
impl IgnoreConstGenericNew {
pub fn new<const N: usize>() -> Self {
Self(N)
}
}
pub struct IgnoreLifetimeNew;
impl IgnoreLifetimeNew {
pub fn new<'a>() -> Self {
Self
}
}