extract_rust() only traversed field_declaration_list (named-struct
bodies), so tuple structs -- whose positional fields nest under
ordered_field_declaration_list -- had every field type reference
silently dropped from the graph.
This is the same node shape the enum handler already accounts for
(tuple variants nest their types under ordered_field_declaration_list);
the struct path was simply left behind. Add an additive branch that,
for each type node in a tuple struct's ordered_field_declaration_list,
collects type refs via _rust_collect_type_refs and emits references
edges with the appropriate field / generic_arg context. The
named-struct path is untouched.
For `struct Wrapper(Logger, Config);` with Logger/Config defined
in-file, no field edges were produced before; both are now emitted.
Adds test_rust_tuple_struct_field_references and a tuple struct to the
shared Rust fixture covering plain and generic positional field types.
Enum variant payload types were silently dropped — `struct_item` and
`trait_item` had type-reference handlers but `enum_item` had none, so the
variant field types were never traversed.
Add an `enum_item` branch that walks
`enum_variant_list -> enum_variant -> ordered_field_declaration_list`
(tuple variants, `Click(Logger)`) and `field_declaration_list` (struct
variants, `Resize { size: Dim }`), emitting a `references` edge from the enum
to each field type. Reuses the same type collection as the struct path. Adds
an enum to the fixture and a regression test.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Synvoya