Fix ForeverStack::find_starting_point output parameter
#3247
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| @@ -493,12 +494,12 @@ ForeverStack<N>::resolve_path (const std::vector<S> &segments) | |||
| if (segments.size () == 1) | |||
| return get (segments.back ().as_string ()); | |||
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| auto starting_point = cursor (); | |||
| std::reference_wrapper<Node> starting_point = cursor (); | |||
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so we can't use auto anymore for getting the cursor?
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Previously, starting_point was of type Node and not Node & -- so find_starting_point and resolve_path were copying nodes instead of adjusting a reference to a node
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When I made this patch, I didn't notice that it was auto starting_point instead of auto &starting_point, so I thought that in some cases the code would clobber parts of the ForeverStack -- but it would probably be best to avoid the Node copies anyways
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To sum it up for clarity, find_starting_point should probably take a reference to a reference to a Node, rather than a reference to a Node
gcc/rust/ChangeLog: * resolve/rust-forever-stack.h (ForeverStack::find_starting_point): Use type 'std::reference_wrapper<Node> &' instead of 'Node &' for parameter starting_point. * resolve/rust-forever-stack.hxx (ForeverStack::find_starting_point): Likewise. (ForeverStack::resolve_path): Handle change to ForeverStack::find_starting_point. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
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