From: Arthur Cohen <[email protected]>
gcc/rust/ChangeLog:
* resolve/rust-forever-stack.h: New method.
* resolve/rust-forever-stack.hxx: Likewise.
---
gcc/rust/resolve/rust-forever-stack.h | 2 ++
gcc/rust/resolve/rust-forever-stack.hxx | 20 +++++++++++++++++++-
2 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/gcc/rust/resolve/rust-forever-stack.h
b/gcc/rust/resolve/rust-forever-stack.h
index 37277ddb3ad..a540e682e5b 100644
--- a/gcc/rust/resolve/rust-forever-stack.h
+++ b/gcc/rust/resolve/rust-forever-stack.h
@@ -585,6 +585,8 @@ private:
// FIXME: Documentation
tl::optional<std::pair<Node &, std::string>> dfs (Node &starting_point,
NodeId to_find);
+ // FIXME: Documentation
+ tl::optional<Rib &> dfs_rib (Node &starting_point, NodeId to_find);
};
} // namespace Resolver2_0
diff --git a/gcc/rust/resolve/rust-forever-stack.hxx
b/gcc/rust/resolve/rust-forever-stack.hxx
index 4e06da235bf..65796172b08 100644
--- a/gcc/rust/resolve/rust-forever-stack.hxx
+++ b/gcc/rust/resolve/rust-forever-stack.hxx
@@ -532,11 +532,29 @@ ForeverStack<N>::to_canonical_path (NodeId id)
template <Namespace N>
tl::optional<Rib &>
-ForeverStack<N>::to_rib (NodeId rib_id)
+ForeverStack<N>::dfs_rib (ForeverStack<N>::Node &starting_point, NodeId
to_find)
{
+ if (starting_point.id == to_find)
+ return starting_point.rib;
+
+ for (auto &child : starting_point.children)
+ {
+ auto candidate = dfs_rib (child.second, to_find);
+
+ if (candidate.has_value ())
+ return candidate;
+ }
+
return tl::nullopt;
}
+template <Namespace N>
+tl::optional<Rib &>
+ForeverStack<N>::to_rib (NodeId rib_id)
+{
+ return dfs_rib (root, rib_id);
+}
+
template <Namespace N>
void
ForeverStack<N>::stream_rib (std::stringstream &stream, const Rib &rib,
--
2.42.1
