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>
The SQL parser (`extract_sql`) previously only extracted foreign key
relationships defined inline within CREATE TABLE column definitions.
FK constraints added via ALTER TABLE ... ADD CONSTRAINT ... FOREIGN KEY
... REFERENCES were silently ignored.
Additionally, `_obj_name()` only read the first identifier child of
object_reference nodes, so schema-qualified names like `Sales.Customer`
were truncated to just `Sales`.
Changes:
- Add `alter_table` handler to `walk()` that extracts FK edges from
ALTER TABLE ... ADD CONSTRAINT ... FOREIGN KEY ... REFERENCES
- Fix `_obj_name()` to read the full object_reference text, preserving
schema-qualified names (e.g. `Sales.Customer`)
- Fix inline FK resolution in create_table and _walk_from_refs to use
full object_reference text instead of first identifier only
- extract_sql(): deterministic tree-sitter extraction of tables, views,
functions, foreign key references, and FROM/JOIN reads_from edges
- .sql added to CODE_EXTENSIONS and dispatch table
- tree-sitter-sql added as optional dep under [sql] extra
- xlsx_extract_structure(): extracts sheet/table/column nodes from .xlsx
(utility — pipeline wiring in follow-up)
- 6 new SQL tests, 447 total passing
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Synvoya