Function test_rust_tuple_struct_field_references

tests/test_multilang.py:368–378

Tuple struct fields (`struct Wrapper(A, B);`) nest their positional types under ordered_field_declaration_list with no field_declaration wrapper -- the same shape as tuple enum variants. That path was not traversed for structs, so tuple-struct field type references were silently dropped.

()

def test_rust_tuple_struct_field_references():
    """Tuple struct fields (`struct Wrapper(A, B);`) nest their positional types
    under ordered_field_declaration_list with no field_declaration wrapper -- the
    same shape as tuple enum variants. That path was not traversed for structs, so
    tuple-struct field type references were silently dropped.
    """
    r = extract_rust(FIXTURES / "sample.rs")
    field_refs = _edge_labels(r, "references", "field")
    assert ("GraphPair", "Graph") in field_refs, "tuple-struct field reference missing"
    assert ("GraphPair", "Result") in field_refs, "tuple-struct generic field reference missing"
    assert ("GraphPair", "DataProcessor") in _edge_labels(r, "references", "generic_arg")


def test_rust_method_parameter_return_and_generic_contexts():