1pub struct DiagnosticInfo {
21 pub code: &'static str,
22 pub summary: &'static str,
23 pub grammar_symbol: &'static [&'static str],
31}
32
33pub const REGISTRY: &[DiagnosticInfo] = &[
35 d(
36 "bynk.actor.bearer_identity_not_string_constructible",
37 "A `Bearer` actor's identity is not a string-constructible type.",
38 ),
39 d(
40 "bynk.actor.bearer_missing_secret",
41 "A `Bearer` actor does not name its signing secret.",
42 ),
43 d(
44 "bynk.actor.binder_shadows_param",
45 "A `by` actor binder collides with a handler parameter of the same name.",
46 ),
47 d(
48 "bynk.actor.by_on_agent",
49 "A `by` actor clause was placed on an agent `on call` handler, which has no actor.",
50 ),
51 d(
52 "bynk.actor.duplicate_sum_scheme",
53 "Two peers in a multi-actor sum share an authentication scheme.",
54 ),
55 d(
56 "bynk.actor.identity_not_sealed",
57 "An actor identity type is not a context-ownable (sealed) value type.",
58 ),
59 d(
60 "bynk.actor.missing_by_on_http",
61 "An HTTP handler lacks the required `by` actor clause.",
62 ),
63 d(
64 "bynk.actor.oidc_identity_not_string_constructible",
65 "An `Oidc` actor's identity is not a string-constructible type.",
66 ),
67 d(
68 "bynk.actor.oidc_missing_audience",
69 "An `Oidc` actor does not name its `audience`.",
70 ),
71 d(
72 "bynk.actor.oidc_missing_issuer",
73 "An `Oidc` actor does not name its `issuer`.",
74 ),
75 d(
76 "bynk.actor.oidc_missing_jwks",
77 "An `Oidc` actor does not name its `jwks` endpoint.",
78 ),
79 d(
80 "bynk.actor.oidc_not_in_sum",
81 "An `Oidc` actor appears as a member of a multi-actor sum.",
82 ),
83 d(
84 "bynk.actor.outside_context",
85 "An `actor` was declared outside a context (e.g. in a commons).",
86 ),
87 d(
88 "bynk.actor.refinement_base_unsupported",
89 "A refinement actor's base is not a `Bearer` actor (no claims to authorise against).",
90 ),
91 d(
92 "bynk.actor.refinement_in_sum",
93 "A refinement actor appears as a member of a multi-actor sum.",
94 ),
95 d(
96 "bynk.actor.refinement_predicate_unsupported",
97 "A refinement actor's `where` predicate is outside the closed claim-predicate set.",
98 ),
99 d(
100 "bynk.actor.scheme_not_admissible",
101 "An actor's scheme is not admissible on this handler's protocol.",
102 ),
103 d(
104 "bynk.actor.signature_identity_unsupported",
105 "A `Signature` actor declared an `identity`, which is not yet supported.",
106 ),
107 d(
108 "bynk.actor.signature_missing_header",
109 "A `Signature` actor does not name its signature header.",
110 ),
111 d(
112 "bynk.actor.signature_missing_secret",
113 "A `Signature` actor does not name its signing secret.",
114 ),
115 d(
116 "bynk.actor.signature_requires_body",
117 "A `Signature` handler does not take a `body` parameter.",
118 ),
119 d(
120 "bynk.actor.signature_tolerance_without_timestamp",
121 "A `Signature` actor set `tolerance` without a `timestamp` header.",
122 ),
123 d(
124 "bynk.actor.sum_requires_binder",
125 "A multi-actor sum `by` clause has no binder to match the resolved actor.",
126 ),
127 d(
128 "bynk.actor.unknown_actor",
129 "A handler's `by` clause names an actor that is not declared.",
130 ),
131 d(
132 "bynk.actor.unknown_scheme",
133 "An actor declares an authentication scheme that is not compiler-known.",
134 ),
135 d(
136 "bynk.actor.unreachable_sum_arm",
137 "A multi-actor sum has an arm unreachable after a catch-all (`None`) peer.",
138 ),
139 dg(
140 "bynk.adapter.consumes_context",
141 "An `adapter` consumed a context; adapter dependencies are adapter-to-adapter.",
142 &["consumes_decl"],
143 ),
144 dg(
145 "bynk.adapter.consumes_requires_selection",
146 "An `adapter` used a whole-unit or aliased `consumes`; adapters must select capabilities with `consumes U { Cap, … }`.",
147 &["consumes_decl"],
148 ),
149 dg(
150 "bynk.adapter.disallowed_item",
151 "An `adapter` declared a `service`, `agent`, or other item it may not contain.",
152 &["adapter_decl"],
153 ),
154 dg(
155 "bynk.adapter.duplicate_binding",
156 "An `adapter` declared more than one `binding` clause.",
157 &["binding_decl"],
158 ),
159 dg(
160 "bynk.adapter.no_binding",
161 "An `adapter` declares an external provider but no `binding` module to supply it.",
162 &["adapter_decl"],
163 ),
164 dg(
165 "bynk.adapter.provider_has_body",
166 "A provider inside an `adapter` has a Bynk body; adapter providers must be external.",
167 &["provider_decl"],
168 ),
169 dg(
170 "bynk.agent.construction_arity",
171 "An agent was constructed with the wrong number of key arguments.",
172 &["agent_decl"],
173 ),
174 dg(
175 "bynk.agent.handler_arity",
176 "An agent handler was called with the wrong number of arguments.",
177 &["agent_decl"],
178 ),
179 dg(
180 "bynk.agent.handler_not_found",
181 "Called a handler the agent does not declare.",
182 &["agent_decl"],
183 ),
184 dg(
185 "bynk.agent.key_mismatch",
186 "An agent key argument has the wrong type.",
187 &["agent_decl"],
188 ),
189 dg(
190 "bynk.agent.outside_context",
191 "An `agent` was declared outside a context.",
192 &["agent_decl"],
193 ),
194 dg(
195 "bynk.agent.return_not_effect",
196 "An agent handler's return type is not an `Effect`.",
197 &["agent_decl"],
198 ),
199 dg(
200 "bynk.agents.bad_state_initialiser",
201 "An agent `store` field initialiser is not a static value of the field's type.",
202 &["store_field"],
203 ),
204 dg(
205 "bynk.agents.non_zeroable_state_field",
206 "An agent `store` field has no initialiser and no implicit zero value.",
207 &["store_field"],
208 ),
209 d(
210 "bynk.boundary.structural_mismatch",
211 "Data crossing a context boundary did not match the expected shape.",
212 ),
213 dg(
214 "bynk.capability.op_arity",
215 "A capability operation was called with the wrong number of arguments.",
216 &["capability_decl"],
217 ),
218 dg(
219 "bynk.capability.outside_context",
220 "A `capability` was declared outside a context.",
221 &["capability_decl"],
222 ),
223 dg(
224 "bynk.capability.unknown_operation",
225 "Referenced an operation the capability does not declare.",
226 &["capability_decl"],
227 ),
228 d(
229 "bynk.cell.invalid_target",
230 "A `:=` write targets something that is not a `store Cell` field.",
231 ),
232 d(
233 "bynk.cell.self_reference",
234 "A `:=` right-hand side reads the cell being written (a read-modify-write); use `.update`.",
235 ),
236 dg(
237 "bynk.consumes.alias_conflict",
238 "Two `consumes` aliases collide.",
239 &["consumes_decl"],
240 ),
241 dg(
242 "bynk.consumes.capability_name_clash",
243 "Two flattened `consumes U { Cap }` capabilities collide, or one clashes with a local capability.",
244 &["consumes_decl"],
245 ),
246 dg(
247 "bynk.consumes.in_commons",
248 "`consumes` appears in a `commons` (it is only valid in a context).",
249 &["consumes_decl"],
250 ),
251 dg(
252 "bynk.consumes.name_conflict",
253 "A `consumes` name collides with another name in scope.",
254 &["consumes_decl"],
255 ),
256 dg(
257 "bynk.consumes.self_reference",
258 "A context `consumes` itself.",
259 &["consumes_decl"],
260 ),
261 dg(
262 "bynk.consumes.service_arity",
263 "A consumed service was called with the wrong number of arguments.",
264 &["consumes_decl"],
265 ),
266 dg(
267 "bynk.consumes.target_is_commons",
268 "`consumes` targets a `commons` instead of a context.",
269 &["consumes_decl"],
270 ),
271 dg(
272 "bynk.consumes.unknown_context",
273 "`consumes` names a context that does not exist.",
274 &["consumes_decl"],
275 ),
276 dg(
277 "bynk.consumes.unknown_service",
278 "Called a service the consumed context does not declare.",
279 &["consumes_decl"],
280 ),
281 d(
282 "bynk.context.consumes_cycle",
283 "Contexts form a `consumes` dependency cycle.",
284 ),
285 d(
286 "bynk.context.external_construction",
287 "A context-owned type was constructed from outside that context.",
288 ),
289 dg(
290 "bynk.context.external_provider",
291 "A bodiless (external) provider was declared outside an `adapter`.",
292 &["provider_decl"],
293 ),
294 d(
295 "bynk.context.opaque_inspection",
296 "An opaquely-exported type was inspected from outside its context.",
297 ),
298 d(
299 "bynk.contract.duplicate_name",
300 "A function declares two contract clauses (`requires`/`ensures`) with the same name.",
301 ),
302 d(
303 "bynk.contract.impure_predicate",
304 "A contract predicate uses an effectful or test-only construct; a contract clause must be pure.",
305 ),
306 d(
307 "bynk.contract.not_bool",
308 "A contract predicate does not have type `Bool`.",
309 ),
310 d(
311 "bynk.contract.restated_by_test",
312 "A `case`/`property` merely restates a contract clause already declared at the function; the test is redundant.",
313 ),
314 d(
315 "bynk.contract.result_in_requires",
316 "A precondition (`requires`) references `result`; the return value is only in scope inside an `ensures`.",
317 ),
318 dg(
319 "bynk.cron.bad_params",
320 "A cron handler declares more than one parameter, or a non-`Int` one.",
321 &["cron_handler"],
322 ),
323 dg(
324 "bynk.cron.duplicate_schedule",
325 "Two cron handlers declare the same schedule.",
326 &["cron_handler"],
327 ),
328 dg(
329 "bynk.cron.invalid_schedule",
330 "A cron expression is not five whitespace-separated fields.",
331 &["cron_handler"],
332 ),
333 dg(
334 "bynk.cron.return_not_effect_result",
335 "A cron handler does not return `Effect[Result[(), E]]`.",
336 &["cron_handler"],
337 ),
338 d(
339 "bynk.duration.literal_overflow",
340 "A `Duration` literal (`<int>.<unit>`) exceeds the representable millisecond range.",
341 ),
342 dg(
343 "bynk.effect.bind_in_pure_context",
344 "An `<-` bind was used in a pure (non-effectful) context.",
345 &["effect_let_stmt"],
346 ),
347 dg(
348 "bynk.effect.bind_on_non_effect",
349 "An `<-` bind was applied to a non-`Effect` value.",
350 &["effect_let_stmt"],
351 ),
352 d(
353 "bynk.effect.capability_in_pure_context",
354 "A capability was used in a pure context.",
355 ),
356 d(
357 "bynk.effect.cross_context_in_pure_context",
358 "A cross-context call was made in a pure context.",
359 ),
360 dg(
361 "bynk.effect.do_in_pure_context",
362 "A `do` statement was used in a pure (non-effectful) context.",
363 &["do_stmt"],
364 ),
365 dg(
366 "bynk.effect.do_on_non_effect",
367 "A `do` statement was applied to a non-`Effect` value.",
368 &["do_stmt"],
369 ),
370 dg(
371 "bynk.effect.do_requires_unit",
372 "A `do` statement was applied to a valued `Effect[T]`; `do` performs a unit effect, so a real result would be dropped — use `let _ <- e` instead.",
373 &["do_stmt"],
374 ),
375 dg(
376 "bynk.effect.fn_value_in_pure_context",
377 "An effectful function value was called in a pure context; like a capability call, it is legal only where the enclosing body is effectful.",
378 &["call"],
379 ),
380 dg(
381 "bynk.expect.not_bool",
382 "`expect` was given a non-`Bool` predicate.",
383 &["expect_expr"],
384 ),
385 dg(
386 "bynk.expect.outside_case",
387 "`expect` was used outside a `case` body.",
388 &["expect_expr"],
389 ),
390 dg(
391 "bynk.exports.capability_not_provided",
392 "An exported capability has no provider in its context.",
393 &["exports_decl"],
394 ),
395 dg(
396 "bynk.exports.conflicting_visibility",
397 "A type is exported with conflicting visibilities.",
398 &["exports_decl"],
399 ),
400 dg(
401 "bynk.exports.duplicate_export",
402 "The same name is exported more than once.",
403 &["exports_decl"],
404 ),
405 dg(
406 "bynk.exports.duplicate_in_clause",
407 "A name appears twice in one `exports` clause.",
408 &["exports_decl"],
409 ),
410 dg(
411 "bynk.exports.undeclared_capability",
412 "`exports capability` names a capability that is not declared.",
413 &["exports_decl"],
414 ),
415 dg(
416 "bynk.exports.undeclared_type",
417 "`exports` names a type that is not declared.",
418 &["exports_decl"],
419 ),
420 dg(
421 "bynk.generics.duplicate_type_param",
422 "A `type` or `fn` declares the same type-parameter name more than once (v0.157, ADR 0183).",
423 &[],
424 ),
425 dg(
426 "bynk.generics.generic_non_record",
427 "A `type` declaration carries type parameters on a non-record body; only a record body (`type Name[T] = { … }`) may be generic (v0.157, ADR 0183).",
428 &["type_decl"],
429 ),
430 dg(
431 "bynk.generics.generic_record_at_boundary",
432 "A `Val[…]` fabricates a value of a generic type; per-instantiation value fabrication is not yet wired (ADR 0197). Since v0.174 a generic-record instantiation may otherwise cross a boundary through its monomorphised codec.",
433 &[],
434 ),
435 dg(
436 "bynk.generics.method_on_generic_type",
437 "A method is attached to a generic type; methods on generic types (generic methods) are not in v0.157 (ADR 0183).",
438 &["fn_decl"],
439 ),
440 dg(
441 "bynk.generics.no_bounds",
442 "A type parameter carries a bound (`[A: …]`); bounded generics are not in v0.20a.",
443 &["fn_decl"],
444 ),
445 dg(
446 "bynk.generics.recursive_generic_at_boundary",
447 "A recursive generic record (one that transitively contains itself, through any wrapper or generic argument) appears at a boundary; it has no finite set of monomorphised codecs, so it is not yet boundary-serialisable (ADR 0197).",
448 &[],
449 ),
450 dg(
451 "bynk.generics.type_arg_count",
452 "A user-declared generic type is applied to the wrong number of type arguments, or a generic type is named without its `[…]` arguments (v0.157, ADR 0183).",
453 &["applied_type_ref"],
454 ),
455 dg(
456 "bynk.generics.type_arg_mismatch",
457 "Inferred or explicit type arguments conflict, have the wrong arity, target a non-generic function, or a type parameter shadows a declared type.",
458 &["call"],
459 ),
460 dg(
461 "bynk.generics.uninferable_type_arg",
462 "A generic function's type parameter could not be inferred from the arguments and was not given explicitly (`name[T](…)`); a bare generic function also cannot be passed as a value in v0.20a.",
463 &["call"],
464 ),
465 dg(
466 "bynk.given.cross_context_unknown_capability",
467 "`given B.Cap` names a capability the consumed context does not export.",
468 &["given_clause"],
469 ),
470 dg(
471 "bynk.given.undeclared_capability",
472 "A handler uses a capability it did not declare with `given`.",
473 &["given_clause"],
474 ),
475 dg(
476 "bynk.given.unknown_capability",
477 "`given` names a capability that does not exist.",
478 &["given_clause"],
479 ),
480 dg(
481 "bynk.given.unused_capability",
482 "A `given` capability is never used (warning).",
483 &["given_clause"],
484 ),
485 d(
486 "bynk.held.branch_divergence",
487 "Branches of a conditional leave a held value (e.g. `Connection[F]`) in inconsistent ownership states — one consumes or stores it, another leaves it owned (§2.9.5, real-time track slice 2).",
488 ),
489 d(
490 "bynk.held.consume_on_borrow",
491 "A consuming operation (`close`/`put`/`take`) is called on a *borrowed* held reference — borrows admit only non-consuming operations like `send` (§2.9.3, real-time track slice 2).",
492 ),
493 d(
494 "bynk.held.leak",
495 "A held value (`Connection[F]`) is still owned at scope exit — it must be disposed (stored, closed, or transferred) before the handler or function returns (§2.9.1, real-time track slice 2).",
496 ),
497 d(
498 "bynk.held.query_accessor_on_held_map",
499 "A key-aware query accessor (`.entries`/`.keys`/`.values`) is used on a held `Map[K, Connection]` — a held resource is iterated with the broadcast ops (`forEach`/`parTraverse`), not a key query.",
500 ),
501 d(
502 "bynk.held.unsupported_map_op",
503 "A held `Map[K, Connection]` is given an `update`/`upsert` — a held resource cannot be transformed by a `(Connection) -> Connection` function; use `put`/`get`/`remove` (real-time track slice 3b-ii).",
504 ),
505 d(
506 "bynk.held.unsupported_storage",
507 "A held value (`Connection[F]`) is stored in a `Set`/`Log`/`Cache` — held values may only live in `Cell[Option[Connection]]` or `Map[K, Connection]` (§2.9.3, real-time track slice 2).",
508 ),
509 d(
510 "bynk.held.use_after_consume",
511 "A held value (`Connection[F]`) is used after a consuming operation (`close`/`put`/`take`) ended its lifetime (§2.9.2, real-time track slice 2).",
512 ),
513 d(
514 "bynk.history.not_an_agent",
515 "A `for all run: History[T]` names a `T` that is not an agent — only an agent has handlers to sequence and reachable states to observe (testing track slice 7, ADR 0155).",
516 ),
517 d(
518 "bynk.history.not_generable",
519 "A `for all run: History[Agent]` targets an agent with a handler parameter whose type cannot be generated (e.g. a `Matches` refinement), so its call-history cannot be driven (testing track slice 7, ADR 0155).",
520 ),
521 d(
522 "bynk.history.outside_property",
523 "`History[Agent]` appears outside a `property`'s `for all` binding — it is a test-only generator, not a value type (testing track slice 7, ADR 0155).",
524 ),
525 d(
526 "bynk.history.restates_invariant",
527 "A history property merely re-checks a guarantee a declared `invariant`/`transition` already enforces on every reached state (testing track slice 7, ADR 0155).",
528 ),
529 dg(
530 "bynk.http.body_on_get_or_delete",
531 "A GET or DELETE handler declares a `body` parameter.",
532 &["http_handler"],
533 ),
534 d(
535 "bynk.http.cache_bad_max_age",
536 "A `@cache` annotation's `maxAge` is missing or not a positive `Duration` literal.",
537 ),
538 d(
539 "bynk.http.cache_bad_scope",
540 "A `@cache` annotation's `scope` is not `public` or `private`.",
541 ),
542 d(
543 "bynk.http.cache_duplicate",
544 "A handler carries more than one `@cache` annotation.",
545 ),
546 d(
547 "bynk.http.cache_on_non_get",
548 "A `@cache` annotation is placed on a handler that is not `on http GET`.",
549 ),
550 d(
551 "bynk.http.cache_unknown_arg",
552 "A `@cache` annotation has an argument outside the closed set (`maxAge`/`scope`).",
553 ),
554 d(
555 "bynk.http.cors_invalid_field",
556 "A `cors` policy field (`headers`/`credentials`/`maxAge`) has the wrong value shape.",
557 ),
558 d(
559 "bynk.http.cors_invalid_origins",
560 "A `cors` policy's `origins` is missing, empty, or not a list of string literals.",
561 ),
562 d(
563 "bynk.http.cors_not_http",
564 "A `cors { }` policy appears on a service that is not `from http`.",
565 ),
566 d(
567 "bynk.http.cors_unknown_field",
568 "A `cors { }` policy declares a field outside the closed set.",
569 ),
570 d(
571 "bynk.http.cors_wildcard_credentials",
572 "A `cors` policy combines `credentials: true` with the wildcard origin `[\"*\"]`.",
573 ),
574 dg(
575 "bynk.http.duplicate_route",
576 "Two handlers share the same method and route.",
577 &["http_handler"],
578 ),
579 dg(
580 "bynk.http.extra_param",
581 "A handler parameter is neither a path parameter nor `body`.",
582 &["http_handler"],
583 ),
584 dg(
585 "bynk.http.invalid_path",
586 "An HTTP route path is malformed.",
587 &["http_handler"],
588 ),
589 d(
590 "bynk.http.limit_bad_max_body",
591 "A `@limit` annotation's `maxBody` is missing or not a positive `Int` literal.",
592 ),
593 d(
594 "bynk.http.limit_duplicate",
595 "A handler carries more than one `@limit` annotation.",
596 ),
597 d(
598 "bynk.http.limit_on_bodyless",
599 "A `@limit` annotation is placed on a handler that takes no body (a GET or DELETE).",
600 ),
601 d(
602 "bynk.http.limit_unknown_arg",
603 "A `@limit` annotation has an argument outside the closed set (`maxBody`).",
604 ),
605 d(
606 "bynk.http.limits_invalid_field",
607 "A `limits` policy field (`maxBody`) has the wrong value shape.",
608 ),
609 d(
610 "bynk.http.limits_not_http",
611 "A `limits { }` policy appears on a service that is not `from http`.",
612 ),
613 d(
614 "bynk.http.limits_unknown_field",
615 "A `limits { }` policy declares a field outside the closed set.",
616 ),
617 dg(
618 "bynk.http.path_param_not_stringy",
619 "A path parameter's type is not constructible from a string.",
620 &["http_handler"],
621 ),
622 dg(
623 "bynk.http.reserved_prefix",
624 "A route uses the reserved `/_bynk/` prefix.",
625 &["http_handler"],
626 ),
627 dg(
628 "bynk.http.return_not_effect_http_result",
629 "An HTTP handler does not return `Effect[HttpResult[T]]`.",
630 &["http_handler"],
631 ),
632 d(
633 "bynk.http.security_invalid_field",
634 "A `security` policy field (`hsts`/`nosniff`) has the wrong value shape.",
635 ),
636 d(
637 "bynk.http.security_not_http",
638 "A `security { }` policy appears on a service that is not `from http`.",
639 ),
640 d(
641 "bynk.http.security_unknown_field",
642 "A `security { }` policy declares a field outside the closed set.",
643 ),
644 dg(
645 "bynk.http.unbound_path_param",
646 "A `:name` route segment has no matching handler parameter.",
647 &["http_handler"],
648 ),
649 d(
650 "bynk.http.unknown_handler_annotation",
651 "A handler carries an annotation outside the closed set (`@cache`/`@limit`).",
652 ),
653 d(
654 "bynk.index.bad_argument",
655 "An `@indexed` argument is not a `by: <field>` label.",
656 ),
657 d(
658 "bynk.index.missing",
659 "A query filters a map by equality on a field that is not `@indexed` (a perf-hint warning).",
660 ),
661 d(
662 "bynk.index.unkeyable_key",
663 "An `@indexed(by: k)` field is not value-keyable.",
664 ),
665 d(
666 "bynk.index.unknown_key",
667 "An `@indexed(by: k)` field is not a field of the map's value type.",
668 ),
669 d(
670 "bynk.index.unused",
671 "A declared `@indexed(by: k)` is never used by an equality filter (a hygiene warning).",
672 ),
673 d(
674 "bynk.invariant.cross_agent_reference",
675 "An invariant predicate references another agent; invariants are per-agent.",
676 ),
677 d(
678 "bynk.invariant.duplicate_name",
679 "An agent declares two invariants with the same name.",
680 ),
681 d(
682 "bynk.invariant.impure_predicate",
683 "An invariant predicate uses an effectful or test-only construct.",
684 ),
685 d(
686 "bynk.invariant.not_bool",
687 "An invariant predicate does not have type `Bool`.",
688 ),
689 dg(
690 "bynk.lambda.unannotated_param",
691 "A lambda parameter has no type annotation in a position where no function type is expected to infer it from.",
692 &["lambda_expr"],
693 ),
694 dg(
695 "bynk.lex.bad_escape",
696 "An invalid escape sequence in a string literal.",
697 &["string_literal"],
698 ),
699 dg(
700 "bynk.lex.float_literal_overflow",
701 "A float literal does not fit a finite 64-bit float.",
702 &["float_literal"],
703 ),
704 dg(
705 "bynk.lex.integer_overflow",
706 "An integer literal is out of range.",
707 &["number_literal"],
708 ),
709 dg(
710 "bynk.lex.interpolation_too_deep",
711 "A string interpolation `\\(…)` nests deeper than the lexer's fixed limit.",
712 &["string_literal"],
713 ),
714 d(
715 "bynk.lex.unclosed_doc_block",
716 "A documentation block is not closed.",
717 ),
718 d(
719 "bynk.lex.unexpected_character",
720 "An unexpected character in the source.",
721 ),
722 dg(
723 "bynk.lex.unterminated_interpolation",
724 "An interpolation hole `\\(…)` is not closed on its line.",
725 &["string_literal"],
726 ),
727 dg(
728 "bynk.lex.unterminated_string",
729 "A string literal is not terminated.",
730 &["string_literal"],
731 ),
732 d(
733 "bynk.list.deprecated_function",
734 "A `bynk.list` free function (`map`/`filter`/`find`/`any`/`all`) is deprecated in favour of the `List` method form (warning; auto-fixable).",
735 ),
736 d(
737 "bynk.namespace.reserved",
738 "A user unit is named `bynk` or `bynk.*`; the `bynk` root is reserved for the toolchain.",
739 ),
740 d(
741 "bynk.observe.bad_count",
742 "An observation call count is not a non-negative integer literal (`called once` / `called <n> times`).",
743 ),
744 d(
745 "bynk.observe.impure_with",
746 "A `with` predicate uses an effectful or test-only construct; it must be pure.",
747 ),
748 d(
749 "bynk.observe.not_a_seam",
750 "An observation targets a capability the unit under test does not consume.",
751 ),
752 d(
753 "bynk.observe.outside_case",
754 "An observation appears outside a `case` body.",
755 ),
756 d(
757 "bynk.observe.trace_outside_test",
758 "`trace(Cap.op)` appears outside a `case` body.",
759 ),
760 d(
761 "bynk.observe.unknown_op",
762 "An observation names an operation the capability does not declare.",
763 ),
764 d(
765 "bynk.observe.with_not_bool",
766 "A `with` predicate does not have type `Bool`.",
767 ),
768 dg(
769 "bynk.parse.consumes_after_decls",
770 "`consumes` appears after other declarations.",
771 &["consumes_decl"],
772 ),
773 d(
774 "bynk.parse.dangling_handler_annotation",
775 "A handler-position annotation (e.g. `@cache`) is not followed by an `on` handler.",
776 ),
777 dg(
778 "bynk.parse.duplicate_cors",
779 "A service declares more than one `cors { }` policy.",
780 &["service_decl"],
781 ),
782 dg(
783 "bynk.parse.duplicate_limits",
784 "A service declares more than one `limits { }` policy.",
785 &["service_decl"],
786 ),
787 dg(
788 "bynk.parse.duplicate_security",
789 "A service declares more than one `security { }` policy.",
790 &["service_decl"],
791 ),
792 dg(
793 "bynk.parse.empty_agent",
794 "An `agent` body is empty.",
795 &["agent_decl"],
796 ),
797 dg(
798 "bynk.parse.empty_capability",
799 "A `capability` body is empty.",
800 &["capability_decl"],
801 ),
802 d(
803 "bynk.parse.empty_interpolation",
804 "An interpolation hole `\\(…)` contains no expression.",
805 ),
806 dg(
807 "bynk.parse.empty_match",
808 "A `match` has no arms.",
809 &["match_expr"],
810 ),
811 dg(
812 "bynk.parse.empty_service",
813 "A `service` body is empty.",
814 &["service_decl"],
815 ),
816 dg(
817 "bynk.parse.expected_agent_key",
818 "Expected a `key` declaration in an agent.",
819 &["agent_decl"],
820 ),
821 d(
822 "bynk.parse.expected_agent_storage",
823 "An agent declares no storage — it has no `store` fields.",
824 ),
825 dg(
826 "bynk.parse.expected_base_type",
827 "Expected a base type.",
828 &["base_type"],
829 ),
830 dg(
831 "bynk.parse.expected_capability_op",
832 "Expected a capability operation.",
833 &["capability_op"],
834 ),
835 d("bynk.parse.expected_expression", "Expected an expression."),
836 dg(
837 "bynk.parse.expected_handler",
838 "Expected a handler.",
839 &["handler"],
840 ),
841 d("bynk.parse.expected_item", "Expected a declaration."),
842 dg(
843 "bynk.parse.expected_predicate",
844 "Expected a refinement predicate.",
845 &["refinement"],
846 ),
847 dg(
848 "bynk.parse.expected_provider_op",
849 "Expected a provider operation.",
850 &["provider_op"],
851 ),
852 d("bynk.parse.expected_token", "Expected a specific token."),
853 d("bynk.parse.expected_type", "Expected a type."),
854 d(
855 "bynk.parse.expected_unit_header",
856 "Expected a `commons` or `context` header.",
857 ),
858 dg(
859 "bynk.parse.expected_visibility",
860 "Expected a visibility keyword.",
861 &["exports_decl"],
862 ),
863 dg(
864 "bynk.parse.exports_after_decls",
865 "`exports` appears after other declarations.",
866 &["exports_decl"],
867 ),
868 d(
869 "bynk.parse.extra_tokens",
870 "Unexpected tokens after an otherwise complete construct.",
871 ),
872 dg(
873 "bynk.parse.generic_arg_count",
874 "Wrong number of generic type arguments.",
875 &["generic_type_ref"],
876 ),
877 dg(
878 "bynk.parse.handler_in_agent",
879 "A protocol handler (`on GET`/`schedule`/`message`) was declared in an agent.",
880 &["handler"],
881 ),
882 d(
883 "bynk.parse.invariant_after_handler",
884 "An `invariant` was declared after a handler; invariants precede handlers.",
885 ),
886 dg(
887 "bynk.parse.malformed_float_literal",
888 "A float literal is missing a digit on one side of the `.` (`1.`, `.5`).",
889 &["float_literal"],
890 ),
891 d(
892 "bynk.parse.nesting_too_deep",
893 "An expression or type nests deeper than the parser's fixed limit.",
894 ),
895 dg(
896 "bynk.parse.non_associative",
897 "A non-associative operator was chained (e.g. `a == b == c`).",
898 &["binary_expr"],
899 ),
900 d(
901 "bynk.parse.orphan_doc_block",
902 "A documentation block is not attached to a declaration (warning).",
903 ),
904 dg(
905 "bynk.parse.reserved_keyword",
906 "A reserved keyword was used as an identifier.",
907 &["identifier"],
908 ),
909 dg(
910 "bynk.parse.self_outside_method",
911 "`self` used outside a method or handler.",
912 &["self_expr"],
913 ),
914 d(
915 "bynk.parse.storage_after_phase",
916 "Agent storage (`state` / `store`) is declared after the invariants or handlers.",
917 ),
918 d(
919 "bynk.parse.transition_after_handler",
920 "A `transition` is declared after an agent handler; step invariants precede the handlers.",
921 ),
922 d(
923 "bynk.parse.unexpected_adapter",
924 "An `adapter` appeared where it is not allowed.",
925 ),
926 dg(
927 "bynk.parse.unexpected_context",
928 "A `context` appeared where it is not allowed.",
929 &["context_decl"],
930 ),
931 d("bynk.parse.unexpected_eof", "Unexpected end of input."),
932 dg(
933 "bynk.parse.unexpected_suite",
934 "A `suite` appeared where it is not allowed.",
935 &["suite_decl"],
936 ),
937 d(
938 "bynk.parse.unknown_effect_method",
939 "An unknown method on `Effect`.",
940 ),
941 dg(
942 "bynk.parse.unknown_handler_kind",
943 "An unknown handler form (expected `call`, an HTTP method, `schedule`, or `message`).",
944 &["handler"],
945 ),
946 dg(
947 "bynk.parse.unknown_predicate",
948 "An unknown refinement predicate.",
949 &["predicate_name"],
950 ),
951 d(
952 "bynk.parse.unknown_tier",
953 "A `case`/`suite` `as <tier>` clause names something other than `unit`, `integration`, or `system`.",
954 ),
955 dg(
956 "bynk.parse.uses_after_decls",
957 "`uses` appears after other declarations.",
958 &["uses_decl"],
959 ),
960 dg(
961 "bynk.parse.variant_name_case",
962 "A sum-type or enum variant name is not capitalised.",
963 &["sum_variant", "enum_type"],
964 ),
965 d(
966 "bynk.project.file_and_directory",
967 "A unit exists as both a file and a directory.",
968 ),
969 d(
970 "bynk.project.inconsistent_commons_name",
971 "A source file's path does not match its declared name.",
972 ),
973 d(
974 "bynk.project.kind_conflict",
975 "A name is declared as both a commons and a context.",
976 ),
977 d(
978 "bynk.project.no_root",
979 "No project root could be determined.",
980 ),
981 d(
982 "bynk.project.no_sources",
983 "The project contains no source files.",
984 ),
985 d(
986 "bynk.project.read_failed",
987 "A source file could not be read.",
988 ),
989 dg(
990 "bynk.property.restates_refinement",
991 "A `property` merely re-checks a refinement its type already guarantees.",
992 &["for_all"],
993 ),
994 dg(
995 "bynk.property.where_not_bool",
996 "A `for all ... where` filter does not type to `Bool`.",
997 &["for_all"],
998 ),
999 dg(
1000 "bynk.provider.dependency_cycle",
1001 "Providers form a capability dependency cycle through `given`.",
1002 &["provider_decl"],
1003 ),
1004 dg(
1005 "bynk.provider.extra_operation",
1006 "A `provides` block implements an operation not in the capability.",
1007 &["provider_decl"],
1008 ),
1009 dg(
1010 "bynk.provider.missing_operation",
1011 "A `provides` block is missing a capability operation.",
1012 &["provider_decl"],
1013 ),
1014 dg(
1015 "bynk.provider.outside_context",
1016 "`provides` was declared outside a context.",
1017 &["provider_decl"],
1018 ),
1019 dg(
1020 "bynk.provider.signature_mismatch",
1021 "A `provides` operation's signature does not match the capability.",
1022 &["provider_decl"],
1023 ),
1024 dg(
1025 "bynk.provider.unknown_capability",
1026 "`provides` names a capability that does not exist.",
1027 &["provider_decl"],
1028 ),
1029 d(
1030 "bynk.query.join_key_mismatch",
1031 "A `joinOn`/`leftJoin` left and right key function return different types.",
1032 ),
1033 dg(
1034 "bynk.query.sum_needs_numeric",
1035 "A `sum`/`average` key function does not return a numeric type (`Int`, `Float`, or `Duration`).",
1036 &[],
1037 ),
1038 dg(
1039 "bynk.queue.bad_params",
1040 "An `on message` handler does not take exactly one `message` parameter.",
1041 &["queue_handler"],
1042 ),
1043 dg(
1044 "bynk.queue.duplicate_consumer",
1045 "Two `on message` handlers consume the same queue.",
1046 &["queue_handler"],
1047 ),
1048 dg(
1049 "bynk.queue.invalid_name",
1050 "A `from queue(\"…\")` binding has an empty queue name.",
1051 &["queue_handler"],
1052 ),
1053 dg(
1054 "bynk.queue.return_not_queue_result",
1055 "An `on message` handler does not return `Effect[QueueResult]`.",
1056 &["handler"],
1057 ),
1058 dg(
1059 "bynk.record_spread.field_type_mismatch",
1060 "A record-spread override has the wrong type for the field.",
1061 &["record_spread"],
1062 ),
1063 dg(
1064 "bynk.record_spread.non_record_base",
1065 "The base of a record spread is not a record.",
1066 &["record_spread"],
1067 ),
1068 dg(
1069 "bynk.record_spread.type_mismatch",
1070 "A record spread's base is a different record type.",
1071 &["record_spread"],
1072 ),
1073 dg(
1074 "bynk.record_spread.unknown_field",
1075 "A record spread overrides a field the record does not have.",
1076 &["record_spread"],
1077 ),
1078 dg(
1079 "bynk.refine.literal_violates",
1080 "A literal does not satisfy the refined type's predicate.",
1081 &["refined_type"],
1082 ),
1083 dg(
1084 "bynk.requires.unpinned_dependency",
1085 "An adapter `binding … requires { … }` entry has an unpinned version range.",
1086 &["binding_decl"],
1087 ),
1088 d(
1089 "bynk.resolve.ambiguous_variant",
1090 "A variant name is ambiguous across several sum types.",
1091 ),
1092 dg(
1093 "bynk.resolve.arity_mismatch",
1094 "A function was called with the wrong number of arguments.",
1095 &["call"],
1096 ),
1097 d("bynk.resolve.duplicate_actor", "Two actors share a name."),
1098 dg(
1099 "bynk.resolve.duplicate_agent",
1100 "Two agents share a name.",
1101 &["agent_decl"],
1102 ),
1103 dg(
1104 "bynk.resolve.duplicate_capability",
1105 "Two capabilities share a name.",
1106 &["capability_decl"],
1107 ),
1108 dg(
1109 "bynk.resolve.duplicate_field",
1110 "A record declares a field twice.",
1111 &["record_type"],
1112 ),
1113 dg(
1114 "bynk.resolve.duplicate_field_init",
1115 "A record construction initialises a field twice.",
1116 &["record_construction"],
1117 ),
1118 dg(
1119 "bynk.resolve.duplicate_fn",
1120 "Two functions share a name.",
1121 &["fn_decl"],
1122 ),
1123 dg(
1124 "bynk.resolve.duplicate_method",
1125 "Two methods share a name.",
1126 &["fn_decl"],
1127 ),
1128 dg(
1129 "bynk.resolve.duplicate_param",
1130 "A parameter name is repeated.",
1131 &["param"],
1132 ),
1133 dg(
1134 "bynk.resolve.duplicate_provider",
1135 "A capability is provided more than once.",
1136 &["provider_decl"],
1137 ),
1138 dg(
1139 "bynk.resolve.duplicate_service",
1140 "Two services share a name.",
1141 &["service_decl"],
1142 ),
1143 dg(
1144 "bynk.resolve.duplicate_type",
1145 "Two types share a name.",
1146 &["type_decl"],
1147 ),
1148 dg(
1149 "bynk.resolve.duplicate_variant",
1150 "A sum type declares a variant twice.",
1151 &["sum_type"],
1152 ),
1153 d(
1154 "bynk.resolve.fn_without_call",
1155 "A function was referenced without being called.",
1156 ),
1157 dg(
1158 "bynk.resolve.let_shadows_fn",
1159 "A `let` binding shadows a function.",
1160 &["let_stmt"],
1161 ),
1162 dg(
1163 "bynk.resolve.let_shadows_type",
1164 "A `let` binding shadows a type.",
1165 &["let_stmt"],
1166 ),
1167 d(
1168 "bynk.resolve.method_unknown_type",
1169 "A method is defined on an unknown type.",
1170 ),
1171 dg(
1172 "bynk.resolve.missing_field",
1173 "A record construction omits a required field.",
1174 &["record_construction"],
1175 ),
1176 d(
1177 "bynk.resolve.name_conflict",
1178 "Two declarations share a name.",
1179 ),
1180 dg(
1181 "bynk.resolve.not_a_record_type",
1182 "Record syntax was used on a non-record type.",
1183 &["record_construction"],
1184 ),
1185 dg(
1186 "bynk.resolve.opaque_record_construction",
1187 "An opaque type was constructed with record syntax.",
1188 &["record_construction"],
1189 ),
1190 dg(
1191 "bynk.resolve.param_as_function",
1192 "A value (such as a parameter) was called as a function.",
1193 &["call"],
1194 ),
1195 dg(
1196 "bynk.resolve.recursive_record_field",
1197 "A record directly contains a field of its own type.",
1198 &["record_type"],
1199 ),
1200 dg(
1201 "bynk.resolve.reserved_builtin_type",
1202 "A type declaration reuses a compiler-known built-in type name.",
1203 &["type_decl"],
1204 ),
1205 dg(
1206 "bynk.resolve.self_outside_method",
1207 "`self` referenced outside a method or handler.",
1208 &["self_expr"],
1209 ),
1210 dg(
1211 "bynk.resolve.type_as_function",
1212 "A type name was called as if it were a function.",
1213 &["call"],
1214 ),
1215 d(
1216 "bynk.resolve.type_in_expr",
1217 "A type name was used where a value is expected.",
1218 ),
1219 dg(
1220 "bynk.resolve.unconsumed_context",
1221 "A context's service was called without a `consumes` declaration.",
1222 &["consumes_decl"],
1223 ),
1224 dg(
1225 "bynk.resolve.unknown_field",
1226 "Accessed a field the record does not have.",
1227 &["field_access"],
1228 ),
1229 dg(
1230 "bynk.resolve.unknown_function",
1231 "Called a function that does not exist.",
1232 &["call"],
1233 ),
1234 d(
1235 "bynk.resolve.unknown_name",
1236 "Referenced a name that is not in scope.",
1237 ),
1238 dg(
1239 "bynk.resolve.unknown_static_member",
1240 "Referenced an unknown static member (e.g. `T.x`).",
1241 &["field_access"],
1242 ),
1243 d(
1244 "bynk.resolve.unknown_type",
1245 "Referenced a type that does not exist.",
1246 ),
1247 d(
1248 "bynk.secrets.computed_name",
1249 "A `bynk.Secrets` read names its secret with a computed expression rather than a literal, so `bynk deploy` cannot plan it (warning).",
1250 ),
1251 dg(
1252 "bynk.send.in_pure_context",
1253 "A `~>` send was used in a pure (non-effectful) context.",
1254 &["effect_send_stmt"],
1255 ),
1256 dg(
1257 "bynk.send.non_effect",
1258 "A `~>` send was applied to a non-`Effect` value.",
1259 &["effect_send_stmt"],
1260 ),
1261 dg(
1262 "bynk.send.requires_unit",
1263 "A `~>` send targets an operation whose reply is not `Effect[()]`.",
1264 &["effect_send_stmt"],
1265 ),
1266 dg(
1267 "bynk.service.missing_from",
1268 "A `from`-less service has a handler other than `on call`.",
1269 &["service_decl"],
1270 ),
1271 dg(
1272 "bynk.service.mixed_protocols",
1273 "A service mixes handler forms that do not match its `from <protocol>`.",
1274 &["service_decl"],
1275 ),
1276 dg(
1277 "bynk.service.outside_context",
1278 "A `service` was declared outside a context.",
1279 &["service_decl"],
1280 ),
1281 dg(
1282 "bynk.service.return_not_effect",
1283 "A service handler's return type is not an `Effect`.",
1284 &["service_decl"],
1285 ),
1286 dg(
1287 "bynk.service.unknown_protocol",
1288 "A `from <protocol>` names an unknown protocol (e.g. a transport like Kafka).",
1289 &["service_decl"],
1290 ),
1291 d(
1292 "bynk.service.websocket_header",
1293 "The `from websocket` header is malformed — it binds frame types as `websocket(in: <type>, out: <type>)` (real-time track slice 3).",
1294 ),
1295 d(
1296 "bynk.service.websocket_multiple",
1297 "A context holds more than one `from websocket` service — at v1 the Workers upgrade routes by the `Upgrade: websocket` header alone, so one WebSocket service per context (real-time track slice 3b).",
1298 ),
1299 d(
1300 "bynk.service.websocket_open_arity",
1301 "A `from websocket` service must hold exactly one `on open` handler (the edge upgrade), and at most one `on message` (inbound) and one `on close` (real-time track slice 3/3b-iii).",
1302 ),
1303 d(
1304 "bynk.store.annotation_kind_mismatch",
1305 "A storage annotation is used on a kind it does not apply to (e.g. `@ttl` on a `Map`).",
1306 ),
1307 d(
1308 "bynk.store.annotation_unsupported",
1309 "A known storage annotation (`@ttl`/`@retain`/`@indexed`/`@bounded`) is used before the slice that supports it.",
1310 ),
1311 d(
1312 "bynk.store.cache_needs_clock",
1313 "A handler performs a `Cache` operation (TTL expiry reads the clock) without declaring `given Clock`.",
1314 ),
1315 d(
1316 "bynk.store.cache_ttl_required",
1317 "A `Cache` field is missing its required `@ttl(<duration>)` annotation (a keyed store with no expiry is a `Map`).",
1318 ),
1319 d(
1320 "bynk.store.kind_arity",
1321 "A storage kind was applied to the wrong number of type arguments (e.g. `Cell[A, B]`).",
1322 ),
1323 d(
1324 "bynk.store.kind_unsupported",
1325 "A known storage kind (`Queue`) is used before the slice that supports it.",
1326 ),
1327 d(
1328 "bynk.store.log_needs_clock",
1329 "A handler calls `Log.append` (which stamps the current time) without declaring `given Clock`.",
1330 ),
1331 d(
1332 "bynk.store.unknown_annotation",
1333 "A `store` field carries an annotation outside the closed `@indexed`/`@ttl`/`@retain`/`@bounded` set.",
1334 ),
1335 d(
1336 "bynk.store.unknown_kind",
1337 "A `store` field's type is not a known storage kind.",
1338 ),
1339 d(
1340 "bynk.store.unknown_map_accessor",
1341 "A `store Map` field access is not one of its query accessors (`entries`/`keys`/`values`).",
1342 ),
1343 d(
1344 "bynk.store.unknown_op",
1345 "A storage-`Map`/`Set` operation is not a recognised entry/membership method.",
1346 ),
1347 d(
1348 "bynk.stub.bad_sequence",
1349 "A `stub … returns each […]` sequence is malformed (e.g. empty).",
1350 ),
1351 d(
1352 "bynk.stub.not_a_seam",
1353 "A test `stub` overrides a capability the unit under test does not consume.",
1354 ),
1355 d(
1356 "bynk.stub.rhs_type",
1357 "A test `stub … returns <value>` right-hand side does not match the operation's return type.",
1358 ),
1359 d(
1360 "bynk.stub.unknown_op",
1361 "A test `stub` names an operation the capability does not declare.",
1362 ),
1363 dg(
1364 "bynk.suite.duplicate_case_name",
1365 "Two `case`s share a description.",
1366 &["case"],
1367 ),
1368 dg(
1369 "bynk.suite.unknown_target",
1370 "A `suite` targets a unit that does not exist.",
1371 &["suite_decl"],
1372 ),
1373 d(
1374 "bynk.target.browser_bundle_only",
1375 "The `browser` platform builds only the in-process `Bundle` topology; `--target workers` is not a browser build.",
1376 ),
1377 dg(
1378 "bynk.target.vendor_conflict",
1379 "One deployment unit's in-process closure uses platform-native capabilities from two mutually-exclusive platforms.",
1380 &["consumes_decl"],
1381 ),
1382 dg(
1383 "bynk.target.vendor_required",
1384 "A deployment unit uses a platform-native capability but the build selects another `--platform`.",
1385 &["consumes_decl"],
1386 ),
1387 dg(
1388 "bynk.test.actor_identity_required",
1389 "A call-site `by <Actor>` omits the identity an identity-carrying actor requires.",
1390 &["case"],
1391 ),
1392 dg(
1393 "bynk.test.actor_no_identity",
1394 "A call-site `by <Actor>(x)` supplies an identity to an actor that takes none — a unit-identity actor (e.g. `Visitor`) or `Nobody`.",
1395 &["case"],
1396 ),
1397 dg(
1398 "bynk.test.credential_needs_system",
1399 "A case drives `by Nobody` (the no-credential principal, which tests the auth seam's 401) outside a `system`-tier case, where there is no real seam to reject it.",
1400 &["case"],
1401 ),
1402 dg(
1403 "bynk.test.nobody_needs_secured_route",
1404 "A case drives `by Nobody` at a route that is not Bearer-secured (e.g. a public `Visitor` route) — there is no auth seam to reject the missing credential.",
1405 &["case"],
1406 ),
1407 dg(
1408 "bynk.test.principal_identity_mismatch",
1409 "A call-site `by <Actor>` acts as an actor whose identity is incompatible with the addressed handler's actor.",
1410 &["case"],
1411 ),
1412 dg(
1413 "bynk.test.principal_on_wrong_method",
1414 "A wrong-method `405` test carries a `by <Actor>` clause; it reaches no handler, so a principal is meaningless.",
1415 &["case"],
1416 ),
1417 dg(
1418 "bynk.test.principal_required",
1419 "A test drives an identity-carrying handler with no call-site `by <Actor>(<identity>)`.",
1420 &["case"],
1421 ),
1422 dg(
1423 "bynk.test.service_bad_address",
1424 "A test body addresses a service the wrong way for its protocol (e.g. an http route without a leading path string).",
1425 &["case"],
1426 ),
1427 dg(
1428 "bynk.test.service_call_arity",
1429 "A test body's `svc.call(...)` passes the wrong number of arguments for the service's `on call` handler.",
1430 &["case"],
1431 ),
1432 dg(
1433 "bynk.test.service_no_call_handler",
1434 "A test body invokes `svc.call(...)` on a service with no `on call` handler (a `from http`/`cron`/`queue` service).",
1435 &["case"],
1436 ),
1437 dg(
1438 "bynk.test.service_unknown_route",
1439 "A test body addresses an http route / cron schedule / queue message the service does not declare.",
1440 &["case"],
1441 ),
1442 dg(
1443 "bynk.test.unknown_actor",
1444 "A call-site `by <Actor>` names an actor the target context does not declare and that is not a prelude actor.",
1445 &["case"],
1446 ),
1447 dg(
1448 "bynk.test.wire_needs_system",
1449 "A `Wire(...)` raw argument is used outside a `system`-tier service address; `Wire` hands pre-validation input to the boundary and is meaningless at `unit` or in any other position.",
1450 &["case"],
1451 ),
1452 d(
1453 "bynk.tier.property_has_tier",
1454 "A `property` carries an `as <tier>` clause; tiers are a `case`-only affordance.",
1455 ),
1456 d(
1457 "bynk.tier.system_needs_wire",
1458 "An `as system` test stands up fewer than two contexts; the system tier wires across contexts.",
1459 ),
1460 d(
1461 "bynk.transition.cross_agent_reference",
1462 "A transition predicate references another agent; step invariants are per-agent.",
1463 ),
1464 d(
1465 "bynk.transition.duplicate_name",
1466 "An agent declares two transitions with the same name.",
1467 ),
1468 d(
1469 "bynk.transition.impure_predicate",
1470 "A transition predicate uses an effectful or test-only construct; a step invariant must be pure.",
1471 ),
1472 d(
1473 "bynk.transition.no_step_reference",
1474 "A transition references neither `old` nor `new`; it constrains one state, so it is an `invariant`, not a step.",
1475 ),
1476 d(
1477 "bynk.transition.not_bool",
1478 "A transition predicate does not have type `Bool`.",
1479 ),
1480 d(
1481 "bynk.types.ambiguous_constructor",
1482 "`Ok`/`Err` is ambiguous between `Result` and `HttpResult`; qualify it.",
1483 ),
1484 dg(
1485 "bynk.types.argument_mismatch",
1486 "A function argument has the wrong type.",
1487 &["call"],
1488 ),
1489 dg(
1490 "bynk.types.call_arity",
1491 "A function value was applied with the wrong number of arguments.",
1492 &["call"],
1493 ),
1494 dg(
1495 "bynk.types.cannot_infer_option_type_param",
1496 "The value type of `None` could not be inferred.",
1497 &["none_expr"],
1498 ),
1499 d(
1500 "bynk.types.cannot_infer_result_type_params",
1501 "The type parameters of a `Result` could not be inferred.",
1502 ),
1503 dg(
1504 "bynk.types.catastrophic_regex",
1505 "A `Matches` predicate nests unbounded quantifiers, risking catastrophic backtracking (ReDoS).",
1506 &["refinement"],
1507 ),
1508 d(
1509 "bynk.types.constructor_arity",
1510 "A variant constructor got the wrong number of arguments.",
1511 ),
1512 d(
1513 "bynk.types.constructor_base_mismatch",
1514 "A `.of` constructor was given an argument of the wrong base type.",
1515 ),
1516 dg(
1517 "bynk.types.duplicate_literal_arm",
1518 "A `match` has two arms for the same literal value.",
1519 &["match_arm"],
1520 ),
1521 dg(
1522 "bynk.types.duplicate_variant_arm",
1523 "A `match` has two arms for the same variant.",
1524 &["match_arm"],
1525 ),
1526 d(
1527 "bynk.types.embeds_ambiguous",
1528 "A type is embedded by more than one variant of a sum, so `?`'s conversion would be ambiguous.",
1529 ),
1530 d(
1531 "bynk.types.embeds_unknown_variant",
1532 "An `embeds … as V` clause names a variant the sum does not declare.",
1533 ),
1534 d(
1535 "bynk.types.embeds_variant_shape",
1536 "An `embeds E as V` target variant must have exactly one payload field, of type `E`.",
1537 ),
1538 dg(
1539 "bynk.types.empty_refinement",
1540 "A refinement admits no values (contradictory predicates).",
1541 &["refinement"],
1542 ),
1543 dg(
1544 "bynk.types.err_value_mismatch",
1545 "An `Err` payload has the wrong type.",
1546 &["err_expr"],
1547 ),
1548 dg(
1549 "bynk.types.field_access_on_non_record",
1550 "Field access on a value that is not a record.",
1551 &["field_access"],
1552 ),
1553 dg(
1554 "bynk.types.field_refinement_not_base",
1555 "An inline field refinement requires a base or refined type.",
1556 &["record_field"],
1557 ),
1558 dg(
1559 "bynk.types.field_value_mismatch",
1560 "A record field was given a value of the wrong type.",
1561 &["record_construction"],
1562 ),
1563 dg(
1564 "bynk.types.function_at_boundary",
1565 "A function type appeared in a serialisable or boundary position (a record field, sum payload, service/agent handler signature, capability operation signature, agent state field, or agent key); functions cannot serialise or cross a boundary.",
1566 &["function_type_ref"],
1567 ),
1568 dg(
1569 "bynk.types.guard_not_bool",
1570 "A match-arm `if` guard is not a `Bool` expression.",
1571 &["match_arm"],
1572 ),
1573 d(
1574 "bynk.types.held_at_boundary",
1575 "A held value (`Connection[F]`) appears in a serialisable or boundary position — a held resource is built and disposed in place, never persisted or sent across a boundary (§2.9, real-time track slice 2).",
1576 ),
1577 d(
1578 "bynk.types.held_not_comparable",
1579 "A held value (`Connection[F]`) is compared with `==`/`!=` — held values have identity, not value-equality (§2.9.3, real-time track slice 2).",
1580 ),
1581 dg(
1582 "bynk.types.if_branch_mismatch",
1583 "The branches of an `if` have different types.",
1584 &["if_expr"],
1585 ),
1586 dg(
1587 "bynk.types.if_non_bool_cond",
1588 "An `if` condition is not a `Bool`.",
1589 &["if_expr"],
1590 ),
1591 dg(
1592 "bynk.types.if_without_else_requires_unit",
1593 "An `if` with no `else` branch has a non-unit then-branch; the missing else defaults to `()`, so the branch must be `()` or `Effect[()]`.",
1594 &["if_expr"],
1595 ),
1596 d(
1597 "bynk.types.interpolation_non_scalar",
1598 "An interpolation hole holds a value with no string form.",
1599 ),
1600 dg(
1601 "bynk.types.invalid_regex",
1602 "A `Matches` predicate contains an invalid regular expression.",
1603 &["refinement"],
1604 ),
1605 dg(
1606 "bynk.types.inverted_range",
1607 "An `InRange` predicate has its bounds inverted.",
1608 &["refinement"],
1609 ),
1610 dg(
1611 "bynk.types.is_base_mismatch",
1612 "An `is` refinement check is applied to a value of the wrong base type.",
1613 &["is_expr"],
1614 ),
1615 dg(
1616 "bynk.types.is_literal_pattern",
1617 "A literal was used on the right of `is`; `is` tests type/refinement, not value equality (use `==`).",
1618 &["is_expr"],
1619 ),
1620 dg(
1621 "bynk.types.is_non_sum",
1622 "`is` was applied to a value that is not a sum type.",
1623 &["is_expr"],
1624 ),
1625 dg(
1626 "bynk.types.is_unknown_variant",
1627 "`is` names a variant the type does not have.",
1628 &["is_expr"],
1629 ),
1630 dg(
1631 "bynk.types.json_uncodable",
1632 "A `Json.encode`/`Json.decode` target type cannot pass through the typed JSON codec (functions, effects, error builtins).",
1633 &["method_call"],
1634 ),
1635 dg(
1636 "bynk.types.key_not_orderable",
1637 "A `sortBy`/`min`/`max` key function does not return an orderable type (`Int`, `Float`, `String`, `Duration`, or `Instant`).",
1638 &[],
1639 ),
1640 dg(
1641 "bynk.types.lambda_mismatch",
1642 "A lambda's parameter count, parameter annotations, or body type do not match the expected function type.",
1643 &["lambda_expr"],
1644 ),
1645 dg(
1646 "bynk.types.let_annotation_mismatch",
1647 "A `let` value does not match its type annotation.",
1648 &["let_stmt"],
1649 ),
1650 dg(
1651 "bynk.types.list_element_mismatch",
1652 "A list-literal element has a different type from the list's element type.",
1653 &["list_literal"],
1654 ),
1655 dg(
1656 "bynk.types.match_arm_mismatch",
1657 "A `match` arm has a different type from the others.",
1658 &["match_arm"],
1659 ),
1660 dg(
1661 "bynk.types.match_non_sum_discriminant",
1662 "`match` was applied to a value that is not a sum type.",
1663 &["match_expr"],
1664 ),
1665 dg(
1666 "bynk.types.method_arity",
1667 "A method was called with the wrong number of arguments.",
1668 &["method_call"],
1669 ),
1670 dg(
1671 "bynk.types.method_not_found",
1672 "Called a method the type does not have.",
1673 &["method_call"],
1674 ),
1675 dg(
1676 "bynk.types.method_on_non_named_type",
1677 "A method was called on a built-in type that has no methods.",
1678 &["method_call"],
1679 ),
1680 dg(
1681 "bynk.types.mixed_pattern_bindings",
1682 "A pattern mixes named and positional bindings.",
1683 &["variant_pattern"],
1684 ),
1685 dg(
1686 "bynk.types.negative_length",
1687 "A length predicate was given a negative value.",
1688 &["refinement"],
1689 ),
1690 dg(
1691 "bynk.types.no_numeric_coercion",
1692 "`Int` and `Float` were mixed without an explicit conversion — in an operation or in refinement bounds.",
1693 &["binary_expr", "refinement"],
1694 ),
1695 dg(
1696 "bynk.types.non_exhaustive_match",
1697 "A `match` does not cover every variant.",
1698 &["match_expr"],
1699 ),
1700 dg(
1701 "bynk.types.ok_value_mismatch",
1702 "An `Ok` payload has the wrong type.",
1703 &["ok_expr"],
1704 ),
1705 dg(
1706 "bynk.types.opaque_raw_outside",
1707 "`.raw` on an opaque type was used outside its defining commons.",
1708 &["field_access"],
1709 ),
1710 dg(
1711 "bynk.types.opaque_record_construction",
1712 "An opaque type was constructed with record syntax.",
1713 &["record_construction"],
1714 ),
1715 dg(
1716 "bynk.types.opaque_unsafe_outside",
1717 "`.unsafe` on an opaque type was used outside its defining context.",
1718 &["field_access"],
1719 ),
1720 dg(
1721 "bynk.types.pattern_arity",
1722 "A pattern binds the wrong number of payload fields.",
1723 &["variant_pattern"],
1724 ),
1725 dg(
1726 "bynk.types.pattern_type_mismatch",
1727 "A pattern's type does not match the matched value.",
1728 &["variant_pattern"],
1729 ),
1730 dg(
1731 "bynk.types.predicate_base_mismatch",
1732 "A predicate does not apply to the type's base (e.g. a string predicate on an `Int`).",
1733 &["refinement"],
1734 ),
1735 d(
1736 "bynk.types.query_at_boundary",
1737 "A `Query` type appears in a storable or boundary-crossing position — a query is built and executed in place, never persisted or sent (ADR 0115).",
1738 ),
1739 dg(
1740 "bynk.types.question_error_mismatch",
1741 "`?` propagates an error type incompatible with the function's.",
1742 &["question_expr"],
1743 ),
1744 dg(
1745 "bynk.types.question_on_non_result",
1746 "`?` was applied to a non-`Result` value.",
1747 &["question_expr"],
1748 ),
1749 dg(
1750 "bynk.types.question_option_outside_http",
1751 "`?` lifts an `Option` only inside a handler returning `HttpResult` (`None` becomes `NotFound`); elsewhere use `.okOr(err)`.",
1752 &["question_expr"],
1753 ),
1754 dg(
1755 "bynk.types.question_outside_result",
1756 "`?` used in a function that does not return a `Result`.",
1757 &["question_expr"],
1758 ),
1759 d(
1760 "bynk.types.return_mismatch",
1761 "A returned value does not match the declared return type.",
1762 ),
1763 dg(
1764 "bynk.types.some_value_mismatch",
1765 "A `Some` payload has the wrong type.",
1766 &["some_expr"],
1767 ),
1768 d(
1769 "bynk.types.stream_at_boundary",
1770 "A `Stream` type appears in a storable or boundary-crossing position — a stream is a live value-over-time source, never persisted or sent across a boundary (real-time track slice 0).",
1771 ),
1772 d(
1773 "bynk.types.stream_not_comparable",
1774 "A `Stream` value is compared with `==`/`!=` — a stream is a live value-over-time source, not a comparable value (real-time track slice 0).",
1775 ),
1776 d(
1777 "bynk.types.type_mismatch",
1778 "Two types that were required to match did not.",
1779 ),
1780 dg(
1781 "bynk.types.uninferable_element_type",
1782 "An empty `[]` (or `List.empty()` / `Map.empty()`) has no expected type to infer its element type from.",
1783 &["list_literal"],
1784 ),
1785 dg(
1786 "bynk.types.unkeyable_distinct",
1787 "A `distinct`/`distinctBy` element or key is not value-keyable (`String`, `Int`, or a refined/opaque type over them).",
1788 &[],
1789 ),
1790 dg(
1791 "bynk.types.unkeyable_map_key",
1792 "A `Map` key type is not value-keyable (`String`, `Int`, or a refined/opaque type over them).",
1793 &["generic_type_ref"],
1794 ),
1795 dg(
1796 "bynk.types.unknown_field",
1797 "Referenced a field the record type does not declare.",
1798 &["field_access"],
1799 ),
1800 dg(
1801 "bynk.types.unknown_pattern_field",
1802 "A pattern names a field the variant does not have.",
1803 &["variant_pattern"],
1804 ),
1805 dg(
1806 "bynk.types.unknown_static_member",
1807 "Referenced an unknown static member on a type.",
1808 &["field_access"],
1809 ),
1810 dg(
1811 "bynk.types.unknown_variant_in_pattern",
1812 "A pattern names a variant the sum type does not have.",
1813 &["variant_pattern"],
1814 ),
1815 dg(
1816 "bynk.types.unreachable_arm",
1817 "A `match` arm is unreachable.",
1818 &["match_arm"],
1819 ),
1820 d(
1821 "bynk.types.variant_arity",
1822 "A variant constructor got the wrong number of payload values.",
1823 ),
1824 d(
1825 "bynk.types.variant_missing_payload",
1826 "A variant requiring a payload was used without one.",
1827 ),
1828 d(
1829 "bynk.types.variant_payload_mismatch",
1830 "A variant payload has the wrong type.",
1831 ),
1832 dg(
1833 "bynk.uses.name_conflict",
1834 "A `uses` name collides with another name.",
1835 &["uses_decl"],
1836 ),
1837 dg(
1838 "bynk.uses.self_reference",
1839 "A commons `uses` itself.",
1840 &["uses_decl"],
1841 ),
1842 dg(
1843 "bynk.uses.target_is_context",
1844 "`uses` targets a context instead of a commons.",
1845 &["uses_decl"],
1846 ),
1847 dg(
1848 "bynk.uses.unknown_commons",
1849 "`uses` names a commons that does not exist.",
1850 &["uses_decl"],
1851 ),
1852 dg(
1853 "bynk.val.agent_not_generable",
1854 "A `for all`/`Val` cannot generate an agent — fabricated agent states need not be reachable.",
1855 &["for_all"],
1856 ),
1857 dg(
1858 "bynk.val.arity",
1859 "`Val[T]` was given the wrong number of pin arguments.",
1860 &["val_expr"],
1861 ),
1862 dg(
1863 "bynk.val.literal_violates",
1864 "A pinned `Val[T]` value violates the type's refinement.",
1865 &["val_expr"],
1866 ),
1867 dg(
1868 "bynk.val.needs_pin",
1869 "A bare `Val[T]` cannot generate a value (e.g. a `Matches` string); pin one.",
1870 &["val_expr"],
1871 ),
1872 dg(
1873 "bynk.val.outside_test",
1874 "`Val[T]` was used outside a test case body.",
1875 &["val_expr"],
1876 ),
1877 dg(
1878 "bynk.val.pin_not_literal",
1879 "A `Val[T]` pin argument is not a compile-time literal.",
1880 &["val_expr"],
1881 ),
1882 dg(
1883 "bynk.val.pin_unsupported",
1884 "A pin was given for a type kind that does not support pinning.",
1885 &["val_expr"],
1886 ),
1887 dg(
1888 "bynk.val.unknown_type",
1889 "`Val[T]` names a type that does not resolve.",
1890 &["val_expr"],
1891 ),
1892 dg(
1893 "bynk.val.unsupported_kind",
1894 "`Val[T]` cannot fabricate a value for this kind of type.",
1895 &["val_expr"],
1896 ),
1897 d(
1898 "bynk.ws.message_frame_param",
1899 "A WebSocket `on message` handler does not have exactly one parameter of the service's inbound (`in:`) frame type — the decoded frame (real-time track slice 3b-iii).",
1900 ),
1901 d(
1902 "bynk.ws.open_given_unsupported",
1903 "A WebSocket `on open` handler declares `given` capabilities — unsupported at v1, since on Workers the handler runs inside the connection-hosting Durable Object, which has no composition root to supply them (real-time track slice 3b).",
1904 ),
1905 d(
1906 "bynk.ws.open_transfer_shape",
1907 "A WebSocket `on open` handler does not transfer its `connection` into exactly one agent, so the Workers upgrade has no single Durable Object to route to (real-time track slice 3b).",
1908 ),
1909 d(
1910 "bynk.ws.route_param_mismatch",
1911 "A WebSocket `on message`/`on close` route parameter does not match the `on open` parameter at the same position — route values are recovered positionally from the connection, so they must be a type-compatible prefix of the `on open` parameters (real-time track slice 3b-iii).",
1912 ),
1913];
1914
1915const fn d(code: &'static str, summary: &'static str) -> DiagnosticInfo {
1917 DiagnosticInfo {
1918 code,
1919 summary,
1920 grammar_symbol: &[],
1921 }
1922}
1923
1924const fn dg(
1926 code: &'static str,
1927 summary: &'static str,
1928 grammar_symbol: &'static [&'static str],
1929) -> DiagnosticInfo {
1930 DiagnosticInfo {
1931 code,
1932 summary,
1933 grammar_symbol,
1934 }
1935}
1936
1937pub fn category(code: &str) -> &str {
1940 code.split('.').nth(1).unwrap_or("")
1941}
1942
1943fn category_title(cat: &str) -> &'static str {
1945 match cat {
1946 "agent" | "agents" => "Agents",
1947 "boundary" => "Boundaries",
1948 "capability" => "Capabilities",
1949 "consumes" => "Consumes",
1950 "context" => "Contexts",
1951 "contract" => "Contracts",
1952 "cron" => "Cron",
1953 "effect" => "Effects",
1954 "expect" => "Expectations",
1955 "exports" => "Exports",
1956 "given" => "Given capabilities",
1957 "http" => "HTTP",
1958 "lex" => "Lexer",
1959 "mock" => "Mocks (collaborators)",
1960 "observe" => "Observation",
1961 "parse" => "Parser",
1962 "project" => "Project",
1963 "property" => "Properties (generative tests)",
1964 "provider" => "Providers",
1965 "queue" => "Queue",
1966 "record_spread" => "Record spread",
1967 "refine" => "Refinement",
1968 "resolve" => "Resolution",
1969 "service" => "Services",
1970 "suite" => "Suites and cases",
1971 "transition" => "Transitions (step invariants)",
1972 "types" => "Type checking",
1973 "uses" => "Uses",
1974 "val" => "Value fabrication",
1975 _ => "Other",
1976 }
1977}
1978
1979pub fn render_markdown() -> String {
1983 use std::collections::BTreeMap;
1984
1985 let mut by_category: BTreeMap<&str, Vec<&DiagnosticInfo>> = BTreeMap::new();
1987 for info in REGISTRY {
1988 by_category
1989 .entry(category_title(category(info.code)))
1990 .or_default()
1991 .push(info);
1992 }
1993
1994 let mut out = String::new();
1995 out.push_str("# Diagnostic index\n\n");
1996 out.push_str(
1997 "<!-- GENERATED FILE — do not edit by hand.\n \
1998 Source: bynkc/src/diagnostics.rs (`render_markdown`).\n \
1999 Regenerate with: BYNK_BLESS=1 cargo test -p bynkc --test diagnostics_registry -->\n\n",
2000 );
2001 out.push_str(
2002 "Every diagnostic code the compiler can emit, with a one-line summary of \
2003 the cause, grouped by category. For step-by-step cause-and-fix guidance \
2004 on the most common ones, see the [troubleshooting guides](../troubleshooting/index.md).\n\n",
2005 );
2006 out.push_str(&format!(
2007 "There are **{}** codes in total.\n",
2008 REGISTRY.len()
2009 ));
2010
2011 for (title, infos) in &by_category {
2012 out.push_str(&format!("\n## {title}\n\n"));
2013 out.push_str("| Code | Summary | Construct |\n|---|---|---|\n");
2014 for info in infos {
2015 let construct = info
2020 .grammar_symbol
2021 .iter()
2022 .map(|sym| format!("[`{sym}`](grammar.md#rule-{sym})"))
2023 .collect::<Vec<_>>()
2024 .join(", ");
2025 out.push_str(&format!(
2026 "| `{}` | {} | {} |\n",
2027 info.code, info.summary, construct
2028 ));
2029 }
2030 }
2031
2032 out
2033}
2034
2035pub fn render_grammar_semantics_json() -> String {
2041 use std::collections::BTreeMap;
2042
2043 let mut by_symbol: BTreeMap<&str, Vec<&DiagnosticInfo>> = BTreeMap::new();
2046 for info in REGISTRY {
2047 for sym in info.grammar_symbol {
2048 by_symbol.entry(sym).or_default().push(info);
2049 }
2050 }
2051
2052 let mut map = serde_json::Map::new();
2053 map.insert(
2054 "_generated".to_string(),
2055 serde_json::Value::String(
2056 "Generated from the grammar_symbol field of bynkc/src/diagnostics.rs. \
2057 Do not edit by hand. Regenerate with: BYNK_BLESS=1 cargo test -p \
2058 bynkc --test diagnostics_registry"
2059 .to_string(),
2060 ),
2061 );
2062 for (sym, infos) in by_symbol {
2063 let arr: Vec<serde_json::Value> = infos
2064 .iter()
2065 .map(|info| serde_json::json!({ "code": info.code, "summary": info.summary }))
2066 .collect();
2067 map.insert(sym.to_string(), serde_json::Value::Array(arr));
2068 }
2069
2070 let mut s =
2071 serde_json::to_string_pretty(&serde_json::Value::Object(map)).expect("serialise semantics");
2072 s.push('\n');
2073 s
2074}