Struct CtreeVisitor 

pub struct CtreeVisitor { /* private fields */ }

The cxx extern "Rust" opaque the C++ ctree walk drives by calling its &mut self methods, each forwarding into the CtreeSink it was built over.

cxx generates a C++ class with a member function per method below; facade/ctree_bridge.cpp receives a CtreeVisitor& and calls them. The visitor holds the sink as a lifetime-erased raw pointer: CtreeVisitor::from_raw is its only constructor, and the caller keeps the borrowed sink alive across the one synchronous walk, so the pointer is always valid and unaliased when a method reborrows it.

Implementations

impl CtreeVisitor

pub unsafe fn from_raw(sink: *mut dyn CtreeSink) -> Self

Wrap a raw sink pointer as a CtreeVisitor for a walk driven by cfunc_walk_ctree.

Passing sink as a raw pointer (not &mut) lets the caller derive both it and any node context it aliases (e.g. a shared builder) from one provenance, so per-callback reborrows never conflict.

Safety

sink must be non-null and point to a live CtreeSink that outlives every use of the returned visitor, and stay unaliased for the duration of each callback (the walk is single-threaded and non-reentrant).

Panics

Panics if sink is null.