bjoernager/rust
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Only look for param in generics if it actually comes from generics

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This commit is contained in:
Michael Goulet 2023-02-28 06:26:48 +00:00
parent b583ede652
commit f851a8aefa
6 changed files with 117 additions and 47 deletions
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15
compiler/rustc_hir/src/hir.rs
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@ -498,6 +498,7 @@ pub struct GenericParam<'hir> {
pub pure_wrt_drop: bool,
pub kind: GenericParamKind<'hir>,
pub colon_span: Option<Span>,
pub source: GenericParamSource,
}
impl<'hir> GenericParam<'hir> {
@ -516,6 +517,20 @@ impl<'hir> GenericParam<'hir> {
}
}
/// Records where the generic parameter originated from.
///
/// This can either be from an item's generics, in which case it's typically
/// early-bound (but can be a late-bound lifetime in functions, for example),
/// or from a `for<...>` binder, in which case it's late-bound (and notably,
/// does not show up in the parent item's generics).
#[derive(Debug, HashStable_Generic, PartialEq, Eq, Copy, Clone)]
pub enum GenericParamSource {
// Early or late-bound parameters defined on an item
Generics,
// Late-bound parameters defined via a `for<...>`
Binder,
}
#[derive(Default)]
pub struct GenericParamCount {
pub lifetimes: usize,