Automatically generate tree traversal and export iteration for structs, eliminating boilerplate when working with hierarchical data that needs serialization or inspection.

Key Features

Automatic tree building: Converts struct fields into TreeNode::Branch hierarchies
Export iteration: Generates iter_any_exportable() to walk all exportable vectors
Field attributes: #[traversable(skip)] to exclude fields, #[traversable(flatten)] to merge nested structures
Option support: Gracefully handles Option<T> fields
Generic-aware: Properly bounds generic parameters with Traversable + Send + Sync

Core API

#[derive(Traversable)]
struct MyData {
    pub metrics: MetricsCollection,
    #[traversable(flatten)]
    pub nested: NestedData,
    #[traversable(skip)]
    internal: Cache,
}

Generated Methods

to_tree_node(&self) -> TreeNode - Build navigable tree structure
iter_any_exportable(&self) -> impl Iterator<Item = &dyn AnyExportableVec> - Iterate all exportable vectors