Merge pull request #2890 from GaijinEntertainment/bbatkin/ast-infer-empty-name-validation

ast_infer: catch empty-named AST nodes (30296) + linq_fold living-doc close-out

Author: borisbat

benchmarks/sql/results.md

@@ -1,6 +1,6 @@
 # Benchmarks — SQL / Array / Decs comparison
 
-Generated 2026-05-26 from `c8b8e6021` (PR D1 — group_by pattern-table stubs + reducer data table). Only group_by + join_groupby rows re-run; other rows from `2c18845d5` (post-Theme-7). **Pending refresh** for PR D2 (plan_zip + plan_decs_join migrations) — the affected lanes (`zip_*`, `join_*`, `join_groupby_*`) are pure pattern-table refactors and expected byte-identical, but a full INTERP+JIT rerun has not yet been done in this PR.
+Generated 2026-05-26 from `0f88a64b6` (PR D3 — full GroupBySourceAdapter melt; closes the linq_fold pattern-table refactor masterplan). Full INTERP + JIT rerun across all 69 lanes; PRs D1/D2/D3 were pure refactors, so the matrix is expected within run-to-run noise of the prior `2c18845d5` baseline.
 Fixture size: n = 100 000 (cars), 100 dealers, 5 brands. Each row is
 one bench family in `benchmarks/sql/`; columns are nanoseconds per
 logical operation. `—` marks an intentionally absent lane — see
@@ -26,151 +26,150 @@ before the timer resolution can measure them — they should be read as
 
 | Benchmark | SQL (m1) | Array (m3f) | Decs (m4) | Decs vs Array |
 |---|---:|---:|---:|---:|
-| `aggregate_match` | 34.3 | 6.0 | 5.9 | 0.98× |
-| `all_match` | 27.4 | 3.5 | 3.5 | 1.00× |
+| `aggregate_match` | 35.1 | 5.9 | 5.9 | 1.00× |
+| `all_match` | 28.0 | 3.5 | 3.5 | 1.00× |
 | `any_match` | 0.00 | 0.00 | 0.00 | — |
-| `average_aggregate` | 29.7 | 5.9 | 8.8 | 1.49× |
-| `bare_order_where` | 279.1 | 119.0 | 127.4 | 1.07× |
-| `chained_select_collapse` | — | 17.8 | 17.9 | 1.01× |
-| `chained_where` | 36.1 | 6.7 | 6.7 | 1.00× |
-| `contains_match` | 0.00 | 2.2 | 1.4 | 0.64× |
-| `count_aggregate` | 29.0 | 4.1 | 4.1 | 1.00× |
-| `decs_count_bare_pred` | — | — | 4.1 | — |
-| `distinct_by_count` | 40.9 | 15.8 | 16.3 | 1.03× |
-| `distinct_by_order_take` | — | 21.8 | 23.8 | 1.09× |
-| `distinct_count` | 41.1 | 16.0 | 16.1 | 1.01× |
-| `distinct_count_pred` | — | 15.8 | 15.8 | 1.00× |
+| `average_aggregate` | 29.7 | 6.0 | 8.7 | 1.45× |
+| `bare_order_where` | 271.1 | 116.7 | 125.2 | 1.07× |
+| `chained_select_collapse` | — | 17.7 | 17.6 | 0.99× |
+| `chained_where` | 36.1 | 6.7 | 7.2 | 1.07× |
+| `contains_match` | 0.00 | 2.2 | 2.2 | 1.00× |
+| `count_aggregate` | 30.1 | 4.1 | 4.1 | 1.00× |
+| `decs_count_bare_pred` | — | — | 4.2 | — |
+| `distinct_by_count` | 41.7 | 15.8 | 16.0 | 1.01× |
+| `distinct_by_order_take` | — | 21.8 | 23.5 | 1.08× |
+| `distinct_count` | 41.8 | 16.2 | 15.9 | 0.98× |
+| `distinct_count_pred` | — | 16.0 | 16.0 | 1.00× |
 | `distinct_take` | 0.00 | 0.00 | 0.00 | — |
 | `element_at_match` | 0.00 | 0.00 | 0.00 | — |
 | `first_match` | 0.00 | 0.00 | 0.00 | — |
 | `first_or_default_match` | 0.00 | 0.00 | 0.00 | — |
-| `groupby_average` | 172.0 | 34.0 | 29.9 | 0.88× |
-| `groupby_count` | 143.7 | 20.4 | 20.4 | 1.00× |
-| `groupby_first` | — | 19.8 | 20.5 | 1.04× |
-| `groupby_having_count` | 141.5 | 20.4 | 20.4 | 1.00× |
-| `groupby_having_hidden_sum` | 175.4 | 24.3 | 24.1 | 0.99× |
-| `groupby_having_post_where` | 170.6 | 19.7 | 19.8 | 1.01× |
-| `groupby_max` | 175.2 | 25.0 | 25.3 | 1.01× |
-| `groupby_min` | 174.7 | 25.0 | 25.3 | 1.01× |
-| `groupby_multi_reducer` | 189.7 | 32.5 | 32.6 | 1.00× |
-| `groupby_select_order` | 170.7 | 19.8 | 19.8 | 1.00× |
-| `groupby_select_sum` | 200.6 | 36.5 | 36.7 | 1.01× |
-| `groupby_sum` | 171.5 | 19.8 | 19.7 | 0.99× |
-| `groupby_where_count` | 75.4 | 14.6 | 14.9 | 1.02× |
-| `groupby_where_sum` | 87.0 | 14.2 | 14.7 | 1.04× |
-| `indexed_lookup` | 1453.6 | 204197.0 | 469.0 | 0.00× |
-| `join_count` | 38.0 | 122.8 | 64.0 | 0.52× |
-| `join_groupby_count` | — | 186.4 | 90.3 | 0.48× |
-| `join_groupby_to_array` | — | 216.1 | 90.8 | 0.42× |
-| `join_select` | — | 149.0 | 86.3 | 0.58× |
-| `join_where_count` | 39.5 | 149.0 | 81.3 | 0.55× |
-| `last_match` | 0.00 | 5.9 | 14.0 | 2.37× |
-| `long_count_aggregate` | 29.1 | 4.1 | 4.1 | 1.00× |
-| `max_aggregate` | 30.4 | 6.0 | 6.8 | 1.13× |
-| `min_aggregate` | 30.8 | 6.1 | 6.8 | 1.11× |
-| `order_distinct_take` | — | 16.1 | — | — |
-| `order_reverse_normalized` | 37.9 | 16.1 | 20.1 | 1.25× |
-| `order_take_desc` | 38.0 | 15.9 | 20.4 | 1.28× |
-| `reverse_take` | 0.10 | 0.00 | 9.3 | — |
-| `reverse_take_select` | 0.00 | 34.6 | 48.8 | 1.41× |
-| `select_count` | 0.10 | 0.00 | 2.2 | — |
-| `select_where` | 195.9 | 11.3 | 19.7 | 1.74× |
-| `select_where_count` | 32.4 | 5.3 | 7.4 | 1.40× |
-| `select_where_order_take` | 36.6 | 12.2 | 14.9 | 1.22× |
-| `select_where_sum` | 37.0 | 7.5 | 7.5 | 1.00× |
-| `single_match` | 0.00 | 2.9 | 5.6 | 1.93× |
-| `skip_take` | 0.50 | 0.10 | 0.20 | 2.00× |
-| `skip_while_match` | 3.5 | 5.2 | 5.3 | 1.02× |
-| `sort_first` | 37.6 | 19.5 | 15.8 | 0.81× |
-| `sort_take` | 38.0 | 16.4 | 20.4 | 1.24× |
-| `sort_take_select` | 38.2 | 16.3 | 20.3 | 1.25× |
-| `sum_aggregate` | 29.7 | 2.2 | 2.1 | 0.95× |
-| `sum_where` | 32.3 | 4.3 | 4.3 | 1.00× |
-| `take_count` | 3.6 | 0.20 | 0.40 | 2.00× |
+| `groupby_average` | 171.1 | 30.5 | 30.1 | 0.99× |
+| `groupby_count` | 144.2 | 20.5 | 20.6 | 1.00× |
+| `groupby_first` | — | 19.9 | 20.6 | 1.04× |
+| `groupby_having_count` | 141.8 | 20.5 | 20.6 | 1.00× |
+| `groupby_having_hidden_sum` | 176.2 | 24.5 | 24.3 | 0.99× |
+| `groupby_having_post_where` | 171.9 | 20.8 | 19.9 | 0.96× |
+| `groupby_max` | 175.4 | 25.1 | 25.2 | 1.00× |
+| `groupby_min` | 176.3 | 32.7 | 25.3 | 0.77× |
+| `groupby_multi_reducer` | 190.4 | 32.7 | 32.6 | 1.00× |
+| `groupby_select_order` | 171.1 | 20.2 | 19.9 | 0.99× |
+| `groupby_select_sum` | 206.6 | 37.1 | 36.5 | 0.98× |
+| `groupby_sum` | 172.5 | 20.1 | 19.9 | 0.99× |
+| `groupby_where_count` | 76.6 | 15.8 | 15.0 | 0.95× |
+| `groupby_where_sum` | 86.7 | 14.3 | 14.8 | 1.03× |
+| `indexed_lookup` | 1443.0 | 205391.4 | 484.6 | 0.00× |
+| `join_count` | 37.7 | 122.0 | 64.0 | 0.52× |
+| `join_groupby_count` | — | 186.8 | 91.6 | 0.49× |
+| `join_groupby_to_array` | — | 217.2 | 90.9 | 0.42× |
+| `join_select` | — | 149.4 | 86.5 | 0.58× |
+| `join_where_count` | 39.2 | 150.6 | 80.9 | 0.54× |
+| `last_match` | 0.00 | 5.9 | 15.6 | 2.64× |
+| `long_count_aggregate` | 34.6 | 4.9 | 4.8 | 0.98× |
+| `max_aggregate` | 34.8 | 7.2 | 8.3 | 1.15× |
+| `min_aggregate` | 35.4 | 7.2 | 8.5 | 1.18× |
+| `order_distinct_take` | — | 20.6 | — | — |
+| `order_reverse_normalized` | 47.5 | 18.6 | 23.2 | 1.25× |
+| `order_take_desc` | 48.1 | 19.6 | 23.1 | 1.18× |
+| `reverse_take` | 0.10 | 0.00 | 11.8 | — |
+| `reverse_take_select` | 0.10 | 42.3 | 63.0 | 1.49× |
+| `select_count` | 0.20 | 0.00 | 2.6 | — |
+| `select_where` | 249.9 | 15.0 | 24.8 | 1.65× |
+| `select_where_count` | 39.5 | 7.0 | 10.8 | 1.54× |
+| `select_where_order_take` | 47.4 | 15.5 | 18.3 | 1.18× |
+| `select_where_sum` | 49.1 | 11.2 | 10.6 | 0.95× |
+| `single_match` | 0.00 | 4.1 | 7.1 | 1.73× |
+| `skip_take` | 0.60 | 0.10 | 0.20 | 2.00× |
+| `skip_while_match` | 4.3 | 6.6 | 6.6 | 1.00× |
+| `sort_first` | 44.2 | 14.0 | 20.7 | 1.48× |
+| `sort_take` | 60.7 | 18.2 | 23.0 | 1.26× |
+| `sort_take_select` | 45.6 | 18.6 | 22.7 | 1.22× |
+| `sum_aggregate` | 34.4 | 2.6 | 2.4 | 0.92× |
+| `sum_where` | 35.8 | 4.9 | 4.9 | 1.00× |
+| `take_count` | 4.1 | 0.30 | 0.50 | 1.67× |
 | `take_count_filtered` | — | 0.20 | 0.20 | 1.00× |
 | `take_sum_aggregate` | — | 0.10 | 0.10 | 1.00× |
-| `take_where_count` | — | 0.10 | 34.6 | 346.00× |
-| `take_while_match` | 7.9 | 2.5 | 2.5 | 1.00× |
-| `to_array_filter` | 70.8 | 11.8 | 11.9 | 1.01× |
-| `zip_count_pred` | — | 14.9 | — | — |
-| `zip_dot_product` | — | 12.6 | 10.3 | 0.82× |
-| `zip_dot_product_3arg` | — | 12.6 | — | — |
+| `take_where_count` | — | 0.10 | 37.5 | 375.00× |
+| `take_while_match` | 8.5 | 2.7 | 2.6 | 0.96× |
+| `to_array_filter` | 76.3 | 12.8 | 13.1 | 1.02× |
+| `zip_count_pred` | — | 15.6 | — | — |
+| `zip_dot_product` | — | 14.4 | 10.7 | 0.74× |
+| `zip_dot_product_3arg` | — | 14.7 | — | — |
 
 ## JIT
 
 | Benchmark | SQL (m1) | Array (m3f) | Decs (m4) | Decs vs Array |
 |---|---:|---:|---:|---:|
-| `aggregate_match` | 34.2 | 0.40 | 0.70 | 1.75× |
-| `all_match` | 27.6 | 0.30 | 0.20 | 0.67× |
+| `aggregate_match` | 34.1 | 0.40 | 0.70 | 1.75× |
+| `all_match` | 27.3 | 0.30 | 0.20 | 0.67× |
 | `any_match` | 0.00 | 0.00 | 0.00 | — |
 | `average_aggregate` | 29.6 | 1.0 | 3.6 | 3.60× |
-| `bare_order_where` | 186.4 | 34.9 | 34.9 | 1.00× |
+| `bare_order_where` | 185.9 | 34.8 | 45.2 | 1.30× |
 | `chained_select_collapse` | — | 2.1 | 2.1 | 1.00× |
-| `chained_where` | 36.0 | 0.60 | 0.80 | 1.33× |
+| `chained_where` | 36.3 | 0.60 | 0.90 | 1.50× |
 | `contains_match` | 0.00 | 0.20 | 0.10 | 0.50× |
 | `count_aggregate` | 29.1 | 0.40 | 0.60 | 1.50× |
 | `decs_count_bare_pred` | — | — | 0.60 | — |
 | `distinct_by_count` | 40.8 | 2.1 | 2.1 | 1.00× |
-| `distinct_by_order_take` | — | 2.6 | 3.3 | 1.27× |
-| `distinct_count` | 40.9 | 2.1 | 2.1 | 1.00× |
+| `distinct_by_order_take` | — | 2.7 | 3.3 | 1.22× |
+| `distinct_count` | 41.1 | 2.1 | 2.1 | 1.00× |
 | `distinct_count_pred` | — | 2.1 | 2.3 | 1.10× |
 | `distinct_take` | 0.00 | 0.00 | 0.00 | — |
 | `element_at_match` | 0.00 | 0.00 | 0.00 | — |
 | `first_match` | 0.00 | 0.00 | 0.00 | — |
 | `first_or_default_match` | 0.00 | 0.00 | 0.00 | — |
-| `groupby_average` | 170.8 | 2.6 | 2.9 | 1.12× |
-| `groupby_count` | 142.3 | 2.3 | 2.5 | 1.09× |
-| `groupby_first` | — | 2.2 | 3.1 | 1.41× |
-| `groupby_having_count` | 141.5 | 2.4 | 2.5 | 1.04× |
-| `groupby_having_hidden_sum` | 175.7 | 2.5 | 2.8 | 1.12× |
-| `groupby_having_post_where` | 175.9 | 2.4 | 2.7 | 1.13× |
-| `groupby_max` | 173.3 | 2.4 | 2.7 | 1.13× |
-| `groupby_min` | 173.8 | 2.4 | 2.7 | 1.13× |
-| `groupby_multi_reducer` | 189.4 | 2.7 | 3.0 | 1.11× |
-| `groupby_select_order` | 171.2 | 2.4 | 2.7 | 1.13× |
-| `groupby_select_sum` | 201.6 | 3.2 | 3.7 | 1.16× |
-| `groupby_sum` | 171.8 | 2.4 | 2.7 | 1.13× |
-| `groupby_where_count` | 75.6 | 1.5 | 1.8 | 1.20× |
-| `groupby_where_sum` | 86.9 | 1.5 | 1.8 | 1.20× |
-| `indexed_lookup` | 1238.2 | 35098.4 | 102.8 | 0.00× |
-| `join_count` | 37.9 | 36.1 | 13.4 | 0.37× |
-| `join_groupby_count` | — | 48.5 | 23.2 | 0.48× |
-| `join_groupby_to_array` | — | 57.4 | 23.1 | 0.40× |
-| `join_select` | — | 43.3 | 24.6 | 0.57× |
-| `join_where_count` | 39.0 | 42.7 | 25.4 | 0.59× |
+| `groupby_average` | 213.8 | 3.2 | 3.6 | 1.12× |
+| `groupby_count` | 187.1 | 3.0 | 3.1 | 1.03× |
+| `groupby_first` | — | 2.8 | 4.0 | 1.43× |
+| `groupby_having_count` | 193.4 | 3.0 | 3.1 | 1.03× |
+| `groupby_having_hidden_sum` | 238.7 | 3.2 | 3.7 | 1.16× |
+| `groupby_having_post_where` | 225.4 | 3.1 | 3.5 | 1.13× |
+| `groupby_max` | 228.1 | 3.3 | 3.4 | 1.03× |
+| `groupby_min` | 219.0 | 3.0 | 3.3 | 1.10× |
+| `groupby_multi_reducer` | 237.0 | 3.3 | 3.6 | 1.09× |
+| `groupby_select_order` | 291.3 | 2.8 | 3.7 | 1.32× |
+| `groupby_select_sum` | 234.6 | 3.8 | 4.3 | 1.13× |
+| `groupby_sum` | 200.7 | 2.8 | 3.1 | 1.11× |
+| `groupby_where_count` | 87.1 | 1.7 | 2.0 | 1.18× |
+| `groupby_where_sum` | 97.8 | 1.7 | 1.9 | 1.12× |
+| `indexed_lookup` | 1251.9 | 38941.4 | 115.5 | 0.00× |
+| `join_count` | 39.3 | 38.7 | 14.6 | 0.38× |
+| `join_groupby_count` | — | 53.5 | 26.1 | 0.49× |
+| `join_groupby_to_array` | — | 56.9 | 26.9 | 0.47× |
+| `join_select` | — | 43.2 | 24.2 | 0.56× |
+| `join_where_count` | 39.5 | 42.7 | 24.7 | 0.58× |
 | `last_match` | 0.00 | 0.50 | 1.4 | 2.80× |
-| `long_count_aggregate` | 29.0 | 0.40 | 0.60 | 1.50× |
-| `max_aggregate` | 30.7 | 0.60 | 0.50 | 0.83× |
-| `min_aggregate` | 30.6 | 0.70 | 0.50 | 0.71× |
+| `long_count_aggregate` | 29.8 | 0.40 | 0.60 | 1.50× |
+| `max_aggregate` | 31.2 | 0.60 | 0.50 | 0.83× |
+| `min_aggregate` | 36.7 | 0.60 | 0.50 | 0.83× |
 | `order_distinct_take` | — | 2.1 | — | — |
-| `order_reverse_normalized` | 37.9 | 0.70 | 1.4 | 2.00× |
-| `order_take_desc` | 38.0 | 0.70 | 1.4 | 2.00× |
+| `order_reverse_normalized` | 38.1 | 0.70 | 1.4 | 2.00× |
+| `order_take_desc` | 40.4 | 0.70 | 1.3 | 1.86× |
 | `reverse_take` | 0.00 | 0.00 | 1.1 | — |
-| `reverse_take_select` | 0.00 | 8.7 | 10.6 | 1.22× |
+| `reverse_take_select` | 0.00 | 8.8 | 10.8 | 1.23× |
 | `select_count` | 0.10 | 0.00 | 0.00 | — |
-| `select_where` | 106.2 | 4.2 | 5.8 | 1.38× |
+| `select_where` | 107.0 | 4.2 | 5.6 | 1.33× |
 | `select_where_count` | 32.6 | 0.40 | 0.60 | 1.50× |
-| `select_where_order_take` | 36.2 | 0.70 | 1.4 | 2.00× |
-| `select_where_sum` | 36.9 | 0.50 | 0.60 | 1.20× |
+| `select_where_order_take` | 36.6 | 0.70 | 1.4 | 2.00× |
+| `select_where_sum` | 38.6 | 0.50 | 0.60 | 1.20× |
 | `single_match` | 0.00 | 0.40 | 1.1 | 2.75× |
 | `skip_take` | 0.30 | 0.00 | 0.00 | — |
-| `skip_while_match` | 3.4 | 0.40 | 0.40 | 1.00× |
-| `sort_first` | 37.5 | 0.40 | 1.3 | 3.25× |
-| `sort_take` | 38.0 | 0.70 | 1.4 | 2.00× |
+| `skip_while_match` | 3.5 | 0.40 | 0.40 | 1.00× |
+| `sort_first` | 38.2 | 0.40 | 1.3 | 3.25× |
+| `sort_take` | 38.3 | 0.70 | 1.4 | 2.00× |
 | `sort_take_select` | 38.5 | 0.70 | 1.4 | 2.00× |
-| `sum_aggregate` | 33.5 | 0.40 | 0.30 | 0.75× |
-| `sum_where` | 32.9 | 0.40 | 0.60 | 1.50× |
+| `sum_aggregate` | 30.1 | 0.40 | 0.30 | 0.75× |
+| `sum_where` | 32.4 | 0.40 | 0.60 | 1.50× |
 | `take_count` | 1.8 | 0.10 | 0.10 | 1.00× |
 | `take_count_filtered` | — | 0.00 | 0.00 | — |
 | `take_sum_aggregate` | — | 0.00 | 0.00 | — |
-| `take_where_count` | — | 0.00 | 10.1 | — |
-| `take_while_match` | 8.0 | 0.20 | 0.30 | 1.50× |
-| `to_array_filter` | 48.4 | 3.3 | 3.4 | 1.03× |
+| `take_where_count` | — | 0.00 | 10.3 | — |
+| `take_while_match` | 8.7 | 0.20 | 0.30 | 1.50× |
+| `to_array_filter` | 48.7 | 3.3 | 3.4 | 1.03× |
 | `zip_count_pred` | — | 0.70 | — | — |
 | `zip_dot_product` | — | 0.50 | 0.50 | 1.00× |
 | `zip_dot_product_3arg` | — | 0.50 | — | — |
 
-
 ## Notes on missing lanes (the `—` cells)
 
 The reasons each cell is empty are also recorded as a comment in the

daslib/linq_fold.das

@@ -4525,7 +4525,7 @@ def private plan_group_by_core(var calls : array<tuple<ExprCall?; LinqCall?>>;
 }
 
 // Shared array/decs/decs-join group_by emitter. Reconstructs head calls (mirrors emit_loop_or_count_lane_decs),
-// builds GroupBySourceAdapter per source-shape, delegates to plan_group_by_core. Cascades on null bail.
+// builds SourceAdapter per source-shape (Array / Decs / DecsJoin), delegates to plan_group_by_core. Cascades on null bail.
 [macro_function]
 def private emit_group_by(var c : Captures; var ctx : EmitCtx; at : LineInfo) : Expression? {
     var gbCall = c.single["gb"]

doc/source/reference/linq_fold_patterns.rst

@@ -249,6 +249,16 @@ identical — only the source iteration changes.
    sources cascades to tier-2 (no decs equivalent of the array
    backward-walk dset gate; deferred per masterplan D6).
 
+   As of PR D3, the ``GroupBySourceAdapter`` shim (a parallel adapter
+   used only by ``plan_group_by_core``) is gone — group_by's three
+   source shapes (``Array`` / ``Decs`` / ``DecsJoin``) all flow
+   through the same ``SourceAdapter`` variant as every other planner.
+   ``plan_group_by_core`` calls ``adapter_wrap_source_loop`` and
+   ``adapter_wrap_invoke`` directly. The decs-join branch of
+   ``adapter_wrap_source_loop`` carries the inline hash-collect +
+   probe + per-pair result-lam bind body shared with
+   ``emit_decs_join``.
+
 .. list-table::
    :header-rows: 1
    :widths: 35 25 40

doc/source/stdlib/handmade/enumeration-rtti-CompilationError.rst

@@ -90,6 +90,7 @@ Invalid debug argument count.
 Invalid debug comment type.
 Invalid delete size type.
 Invalid delete super self type.
+AST node has an empty name where one is required (e.g. a macro emitted an ExprVar with `name := ""`, or a struct field declaration without a name).
 Invalid enumeration.
 Invalid enumeration name.
 Invalid enumerator.

include/daScript/ast/ast_infer_type.h

@@ -101,6 +101,7 @@ namespace das {
         void pushVarStack();
         void popVarStack();
         void error(const string &err, const string &extra, const string &fixme, const LineInfo &at, CompilationError cerr = CompilationError::unspecified) const;
+        void checkEmptyName(const string &name, const char *nodeKind, const LineInfo &at);
         void reportAstChanged();
         virtual void reportFolding() override;
         string describeType(const TypeDeclPtr &decl) const;

include/daScript/ast/compilation_errors.h

@@ -294,6 +294,7 @@ namespace das
     ,   invalid_with_type                                           =   30293    // 1 site(s)
     ,   invalid_yield                                               =   30294    // 1 site(s)
     ,   invalid_yield_in_block                                      =   30295    // 1 site(s)
+    ,   invalid_empty_name                                          =   30296    // AST node with empty name; usually a macro emission bug
 
 // missing_*