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Move some field extraction logic onto a method on Node

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This commit is contained in:
Oli Scherer 2023-06-19 09:51:28 +00:00
parent 30ff127036
commit cb161e77ba
2 changed files with 26 additions and 7 deletions
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23
compiler/rustc_hir/src/hir.rs
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@ -3743,6 +3743,29 @@ impl<'hir> Node<'hir> {
}
}
/// Get the type for constants, assoc types, type aliases and statics.
pub fn ty(self) -> Option<&'hir Ty<'hir>> {
match self {
Node::Item(it) => match it.kind {
ItemKind::TyAlias(ty, _) | ItemKind::Static(ty, _, _) | ItemKind::Const(ty, _) => {
Some(ty)
}
_ => None,
},
Node::TraitItem(it) => match it.kind {
TraitItemKind::Const(ty, _) => Some(ty),
TraitItemKind::Type(_, ty) => ty,
_ => None,
},
Node::ImplItem(it) => match it.kind {
ImplItemKind::Const(ty, _) => Some(ty),
ImplItemKind::Type(ty) => Some(ty),
_ => None,
},
_ => None,
}
}
pub fn alias_ty(self) -> Option<&'hir Ty<'hir>> {
match self {
Node::Item(Item { kind: ItemKind::TyAlias(ty, ..), .. }) => Some(ty),