devscout_rs/extract/types.rs
1// ---------------------------------------------------------------------------
2// Graph fragment extraction and its helpers. Scope: defs =
3// namespace-level+nested types with public method names plus enum members;
4// refs = using directives, base-list types,
5// object-creation types, field/property/parameter/return types, generic
6// type arguments, and member-access qualifier.member candidates. No
7// call-graph resolution.
8// ---------------------------------------------------------------------------
9
10/// Represents `DefRecord`.
11pub struct DefRecord {
12 /// The id value.
13 pub id: String,
14 /// The name value.
15 pub name: String,
16 /// The namespace value.
17 pub namespace: String,
18 /// The kind value.
19 pub kind: String,
20 /// The line value.
21 pub line: usize,
22 /// The methods value.
23 pub methods: Vec<String>,
24 /// Declared property names, source order, deduped
25 /// (indexers excluded by construction: `indexer_declaration` is a
26 /// different grammar node). NO accessibility filter, deliberately
27 /// asymmetric with `methods`: static/const/readonly/expression-bodied all
28 /// count and only indexers are excluded, so a private member is still a
29 /// member of the type. Empty for every
30 /// enum-member def.
31 pub properties: Vec<String>,
32 /// Declared field names, source order, deduped, every
33 /// declarator of every `field_declaration` ("private int a, b;"
34 /// contributes both). `event_field_declaration` is a distinct node type
35 /// and is NOT a field for this purpose. Same no-accessibility-filter
36 /// rule as `properties`.
37 pub fields: Vec<String>,
38 /// (method name, declared return type NAME) pairs in
39 /// FIRST-declaration source order, parallel to `methods` (same
40 /// `is_recorded_method` predicate, so the two can never drift). The
41 /// first declaration of a name claims the slot outright: a later
42 /// overload with a different return type is ignored, and a first
43 /// declaration whose return type yields no fact (void, var, a
44 /// predefined type) BLOCKS the name rather than letting a later
45 /// overload stand in for it. A Vec of pairs, not a map: the serialized
46 /// key order is significant (see graph.rs's `FragDef`).
47 pub method_returns: Vec<(String, String)>,
48 /// The extension methods this type declares: every method
49 /// whose FIRST parameter carries the `this` modifier, in source order,
50 /// deduped by (name, thisType, arityMin, arityMax). Appended LAST, after
51 /// `method_returns`, and omitted at serialization when empty. Unlike
52 /// `methods` there is NO accessibility filter (`internal static class
53 /// FooExtensions` is the shape this feature exists for) and no `static`
54 /// check on either the method or its class -- C# already disallows a
55 /// `this` parameter anywhere else, so the parameter modifier IS the
56 /// discriminator.
57 pub extension_methods: Vec<ExtensionMethod>,
58 /// The DIRECT base-type identifiers this
59 /// declaration lists, in source order, deduped. Same `base_list` traversal
60 /// `record_base_list` walks for its `inherits` refs, reduced to a base
61 /// IDENTIFIER because the resolver re-RESOLVES these names through the
62 /// ordinary ladder rather than matching them; the resulting closure is
63 /// what lets the extension tier see an inherited instance member and
64 /// decline. Appended after `extension_methods` and omitted when empty.
65 pub bases: Vec<String>,
66 /// The declaring type's OWN type-parameter names (`class
67 /// MongoRepository<T>` records `["T"]`), empty for every non-generic
68 /// declaration. This is the ctor-DI resolver's "is this def itself an
69 /// open-generic implementation" signal. Appended after `bases`, omitted
70 /// when empty.
71 pub type_params: Vec<String>,
72 /// Per base name that carried a type-argument list, that
73 /// list's generic-arg descriptors relative to `type_params` (a `"*"`
74 /// wildcard marks a position that is a pass-through of the declaring
75 /// type's own parameter). A `Vec` of pairs, not a map, for the same
76 /// reason `method_returns` is: the serialized key order is significant.
77 /// Appended after `type_params`, omitted when empty; a base
78 /// with no type-argument list at all contributes no entry.
79 pub base_generic_args: Vec<(String, Vec<String>)>,
80 /// The methods this type declares that a test
81 /// framework would DISCOVER as tests, in source order, deduped. Appended
82 /// LAST, after `base_generic_args`, and omitted at serialization when
83 /// empty. The attribute IS the fact, which is why this is the one member
84 /// fact with no accessibility filter at all and why no file, folder or
85 /// type-name convention is read anywhere.
86 pub test_methods: Vec<String>,
87 /// (property name, declared type fact) pairs for exactly the
88 /// properties `properties` records, in the same source order and under the
89 /// same dedup. A property whose declared type yields no fact (a predefined
90 /// type) has no entry, so the two lists are parallel but not equal in
91 /// length. A `Vec` of pairs, not a map, for the same reason
92 /// `method_returns` is one: the serialized key order is significant.
93 /// Appended LAST, after `test_methods`.
94 pub property_types: Vec<(String, Fact)>,
95 /// (field name, declared type fact) pairs for exactly the
96 /// fields `fields` records, in the same source order and under the same
97 /// dedup. A field whose declared type yields no fact (a predefined type)
98 /// has no entry, so the two lists are parallel but not equal in length.
99 /// Every declarator of one `field_declaration` shares that declaration's
100 /// own type node, so `private int a, b;` gives `a` and `b` the SAME
101 /// fact -- the same declarator sharing `fields`'s own collection loop
102 /// already relies on. A `Vec` of pairs, not a map, for the same reason
103 /// `property_types` is one: the serialized key order is significant.
104 /// Appended LAST, after `property_types`.
105 pub field_types: Vec<(String, Fact)>,
106 /// Per method name that `method_returns` also records an
107 /// entry for, that return type's top-level generic-arg descriptors --
108 /// the same capture `base_generic_args` keeps beside `bases`, for the
109 /// same reason: `method_returns` records only the return type's bare
110 /// identifier ("Task" for `Task<Order> GetAsync()`), and this is what
111 /// lets the resolver unwrap ONE `Task<...>`/`ValueTask<...>` layer off
112 /// an AWAITED call's callee without ever touching `method_returns`
113 /// itself, which an unawaited use of the very same callee reads
114 /// unchanged. A `Vec` of pairs, not a map, for the same reason
115 /// `method_returns` is one: the serialized key order is significant.
116 /// Appended LAST of all, after `field_types`; a method whose return
117 /// type carries no type-argument list at all contributes no entry.
118 pub method_return_args: Vec<(String, Vec<String>)>,
119 /// Declared METHOD names this type does NOT record in `methods`,
120 /// because `is_recorded_method` gates that list on a literal `public`
121 /// modifier (or `kind == "interface"`, where every method already
122 /// counts as public and this list is always empty). Same predicate,
123 /// same `method_declaration` node kind, same source order and dedup as
124 /// `methods` -- the two lists partition a type's method declarations
125 /// with no overlap and no gap. Unlike `properties`/`fields`, which
126 /// already carry every accessibility with no filter at all, `methods`
127 /// needed a counterpart list for a non-public method (protected,
128 /// internal, private or no-modifier/private-by-default) to be
129 /// recorded anywhere. Consulted by the resolver ONLY for
130 /// hierarchy-internal receivers -- a `base.` lookup and the `this.`
131 /// shape's own typed-receiver walk -- never by the scored tier's
132 /// vouching or veto, which keep reading `methods` alone. Appended
133 /// LAST of all, after `method_return_args`.
134 pub non_public_methods: Vec<String>,
135 /// Method name -> the (min, max) argument-count RANGE every overload
136 /// sharing that name accepts, one tuple per overload, in declaration
137 /// order -- covers EVERY `method_declaration`, public and non-public
138 /// alike (unlike `methods`/`non_public_methods`, which only say a name
139 /// exists, this says what a CALL of that name needs to look like).
140 /// `min` excludes a parameter carrying a default value or the `params`
141 /// modifier; `max` is the total parameter count, or -1 (unbounded) when
142 /// the trailing parameter is a `params` array -- the same sentinel
143 /// `ExtensionMethod::arity_max` already uses. A `Vec` of pairs, not a
144 /// map, for the same reason `method_returns` is one: the serialized key
145 /// order is significant. Consulted by the resolver's arity-aware call
146 /// vouching: a ref carrying an `argCount` binds to `methods`/
147 /// `non_public_methods` only when SOME overload's range admits it: a
148 /// same-named instance member at the wrong arity does not shadow the
149 /// extension tier. A read (no `argCount`) never consults this table.
150 /// Appended LAST of all, after `non_public_methods`.
151 pub method_arities: Vec<(String, Vec<(usize, i64)>)>,
152 /// Method name -> per-overload parameter type descriptors (see
153 /// `type_descriptor`), one `Vec<String>` per overload in declaration
154 /// order -- covers EVERY `method_declaration`, public and non-public
155 /// alike, same method set as `method_arities`. A position naming the
156 /// enclosing method's or type's own type parameter is recorded as `"*"`
157 /// (wildcard); a parameter carrying the `this` modifier is written
158 /// `"this <descriptor>"` (the extension-method marker). For a
159 /// `delegate` def this carries exactly one entry, keyed `"Invoke"`,
160 /// built from the delegate's own parameter list (a delegate has no
161 /// body, so it is not one of the `method_declaration` overloads this
162 /// otherwise iterates). A `Vec` of pairs, not a map, for the same
163 /// reason `method_returns` is one: the serialized key order is
164 /// significant. Appended LAST of all, after `method_arities`.
165 pub method_params: Vec<(String, Vec<Vec<String>>)>,
166 /// Declared method names carrying the literal `override` modifier,
167 /// source order, deduped. Appended LAST of all, after `method_params`.
168 /// Consulted only by the resolver's member-level `overrides` pass,
169 /// itself run only for a type the resolver already knows is a
170 /// registered DI implementation -- see `graph.rs`'s `FragDef`.
171 pub override_methods: Vec<String>,
172 /// Per base name that carries a top-level type argument which is
173 /// ITSELF generic, that argument list rendered by `type_descriptor`
174 /// (nested structure intact) rather than the flattened bare
175 /// identifiers `base_generic_args` carries -- `IConsumer<Batch<
176 /// LoanRequested>>` records `[("IConsumer", ["Batch<LoanRequested>"])]`
177 /// here, so the inner message type survives extraction instead of
178 /// collapsing to `Batch`. A base whose arguments are all non-generic
179 /// contributes no entry: `base_generic_args` already carries that
180 /// shape, so a second copy would add no fact. Appended LAST of all,
181 /// after `override_methods`.
182 pub base_type_args: Vec<(String, Vec<String>)>,
183 /// Every distinct single type argument the type's own properties wrap
184 /// (`Event<LoanRequested>` records `LoanRequested`), in declaration
185 /// order. A long-running handler names the further messages it binds
186 /// this way rather than on its base list, so the base list alone would
187 /// miss them. Recorded for every type; the resolver keeps these only
188 /// for a type it already holds to be a handler. Appended LAST of all,
189 /// after `base_type_args`.
190 pub property_message_args: Vec<String>,
191 /// Base names (a subset of `bases`) whose message-position argument --
192 /// `base_generic_args`' own position 0 -- is itself an array type
193 /// (`IConsumer<M[]>`). `base_generic_args`/`generic_arg_descriptors`
194 /// both already look THROUGH an `array_type` to its element (the same
195 /// unwrapping `base_type_identifier` performs generally), so this is
196 /// the only place left that still knows the wrapper was there at all --
197 /// the lane-owned sibling of the array bit `extract::receivers::type_fact`
198 /// keeps for a declared local/parameter. A base whose nested argument
199 /// already carries its own array suffix through `base_type_args`
200 /// (`IConsumer<Batch<M[]>>`) needs no entry here: that reading is
201 /// structural, off the rendered descriptor, and never loses the
202 /// bracket. Appended LAST of all, after `property_message_args`.
203 pub array_message_bases: Vec<String>,
204 /// 1-based last line of the complete declaration node.
205 pub end_line: usize,
206}
207
208/// One message-bus publish-site fact: an invocation handing a message
209/// instance to a bus, mediator or scheduler.
210///
211/// `message` is a RESOLVED type descriptor -- read off a generic type
212/// argument, a constructed type, or a declared local/parameter type
213/// through the ordinary scope ladder, never a bare identifier merely
214/// co-located on the same source line as the call. See `extract/bus.rs`.
215#[derive(Debug, Clone, PartialEq)]
216pub struct PublishRecord {
217 /// The invoked method name (`Publish`, `PublishAsync`, `SubmitJob`,
218 /// `Reply`, `Send`).
219 pub verb: String,
220 /// The resolved message-type descriptor the call hands off.
221 pub message: String,
222 /// The call's enclosing namespace.
223 pub namespace: String,
224 /// The call's 1-based line -- the SAME line no matter how many source
225 /// lines the call itself spans, so a split call still records exactly
226 /// one site.
227 pub line: usize,
228 /// The walk's own `type_stack` (see `RefRecord::outer_types`).
229 pub outer_types: Vec<String>,
230 /// The name of the method this call sits in, recorded ONLY when the
231 /// message is an unbound type parameter. That pairing is the signature
232 /// of a forwarding wrapper -- a method that hands its own caller's
233 /// message on to a bus -- and the method name is what the resolver
234 /// needs to recognize this repository's own calls to it. An ordinary
235 /// publish site names a concrete message and records nothing here.
236 /// Appended LAST, after `outer_types`.
237 pub enclosing_method: Option<String>,
238 /// The call's own argument count -- see `extract::refs::invocation_arg_count`.
239 /// Appended LAST, after `enclosing_method`.
240 pub arg_count: usize,
241 /// Set when the call sits inside a lambda body that is itself an
242 /// argument of an ENCLOSING invocation (a test-double setup/verify
243 /// lambda, or an ordinary delegate lambda -- this fact alone does not
244 /// distinguish the two; see `extract::bus::enclosing_call_through_lambda`).
245 /// Appended LAST, after `arg_count`.
246 pub enclosing_call: Option<EnclosingCallFact>,
247}
248
249/// The enclosing invocation a publish call's own lambda sits inside, when
250/// it sits inside one at all. See `PublishRecord::enclosing_call`.
251#[derive(Debug, Clone, PartialEq)]
252pub struct EnclosingCallFact {
253 /// The enclosing invocation's own callee bare name.
254 pub verb: String,
255 /// The 0-based position the lambda occupies among the enclosing
256 /// invocation's arguments.
257 pub arg_position: usize,
258 /// The enclosing invocation's own total argument count.
259 pub arg_count: usize,
260}
261
262/// One `extensionMethods` entry. Field order (`name`, `thisType`, `arityMin`,
263/// `arityMax`, `thisArgs`) is significant: it fixes the serialized field
264/// order.
265#[derive(Debug, Clone, PartialEq)]
266pub struct ExtensionMethod {
267 /// The name value.
268 pub name: String,
269 /// The this type value.
270 pub this_type: String,
271 /// Non-this parameters a caller cannot
272 /// leave out: no default value AND no `params` modifier.
273 pub arity_min: usize,
274 /// Total non-this parameter count, or -1 when the trailing parameter is a
275 /// `params` array (unbounded above). Signed precisely so -1 can be the
276 /// sentinel written as a JSON number.
277 pub arity_max: i64,
278 /// The this-parameter type's TOP-LEVEL
279 /// type-argument descriptors, present only when that type is generic.
280 /// A position naming one of the method's or the enclosing class's own type
281 /// parameters is recorded as "*" (wildcard).
282 pub this_args: Option<Vec<String>>,
283}
284
285/// Represents `RefRecord`.
286pub struct RefRecord {
287 /// The kind value.
288 pub kind: String,
289 /// The name value.
290 pub name: String,
291 /// The qualified value.
292 pub qualified: Option<String>,
293 /// The member value.
294 pub member: Option<String>,
295 /// The line value.
296 pub line: usize,
297 /// `None` only for 'imports' refs -- a using directive is not
298 /// namespace-scoped, so `ns` is deliberately `null`. Every other ref
299 /// carries `Some(ns)`, where `ns`
300 /// may itself be the empty string at file scope.
301 pub namespace: Option<String>,
302 /// The type arg count value.
303 pub type_arg_count: Option<usize>,
304 /// `true` when a uses-member qualifier carried a
305 /// type-argument list anywhere (`Cache<T>.x`, `Ns.Cache<T>.x`): syntax
306 /// only a TYPE can carry, so the resolver treats it as type-certainty
307 /// for non-enum member emission. Always `false` for every other ref
308 /// kind.
309 pub generic: bool,
310 /// The declared type NAME of the receiver a uses-member
311 /// qualifier names, when the enclosing scope holds exactly one fact for
312 /// it (a declared local, a `var x = new T()` local, a parameter, a
313 /// field, or a primary-constructor parameter). Set ONLY for a BARE,
314 /// non-generic qualifier -- see the `member_access_expression` arm's
315 /// guard, which is what makes the chain-tail hazard structurally
316 /// impossible. Always `None` for every other ref kind.
317 pub receiver_type: Option<String>,
318 /// The argument count of the call this
319 /// member access is the CALLEE of (`argument_list` named-child count),
320 /// recorded only when the access is the `function` field of an
321 /// `invocation_expression`. A property read (`x.P`) carries `None`, which
322 /// is what keeps it out of the arity-matched extension tier entirely.
323 /// Appended AFTER `receiver_type`. Always `None` for every other ref kind.
324 pub arg_count: Option<usize>,
325 /// The DECLARED receiver type's top-level
326 /// type-argument descriptors, present only when that type is generic. A
327 /// position naming a type parameter of the enclosing method or class is
328 /// recorded as "*" (wildcard): nothing at the fact site knows its binding.
329 /// Travels with `receiver_type` -- the fact carries both or neither.
330 /// Appended LAST, after `arg_count`.
331 pub receiver_args: Option<Vec<String>>,
332 /// The walk's own `type_stack` verbatim: the enclosing type simple
333 /// names, OUTERMOST first, the same order `type_id` joins with "+" to build
334 /// a nested def id. Empty at namespace level, and empty is exactly what an
335 /// absent key deserializes to. Appended LAST, after `receiver_args`.
336 pub outer_types: Vec<String>,
337 /// Generic-arg descriptors for a 'ctor-param' ref's
338 /// parameter type (same descriptor shape as `receiver_args`: a `"*"`
339 /// wildcard for a pass-through of the enclosing type's own type
340 /// parameter), present only when that type is generic. `None` for every
341 /// other ref kind. Appended LAST of all, after `outer_types` -- 'ctor-param'
342 /// is a ref kind no other caller touches, so putting it after that
343 /// "last of all" field costs no other ref kind a single byte.
344 pub args: Option<Vec<String>>,
345 /// The type whose PROPERTY the qualifier's last segment is, for
346 /// a two-segment chain whose head the enclosing scope has a fact for
347 /// ("a.Settings" in `a.Settings.Reload()`). Never travels with
348 /// `receiver_type`: that one is bare-qualifier-only and this one is
349 /// dotted-qualifier-only, which is what keeps the chain-tail hazard
350 /// structurally impossible -- the resolver reaches the tail's type through
351 /// the head type's RECORDED property types, never by inheriting the head's
352 /// own. Appended after `args`.
353 pub receiver_property_owner: Option<String>,
354 /// The type whose METHOD a `var x = Q.M(...)` initializer
355 /// called, and that method's name. Always set as a pair, and never
356 /// alongside `receiver_type`: the local's type is whatever `M` returns, a
357 /// lookup only the resolver can do. Appended LAST of all.
358 pub receiver_call_owner: Option<String>,
359 /// The receiver call member value.
360 pub receiver_call_member: Option<String>,
361 /// `true` for a `base.M` qualifier -- the member lookup starts at the
362 /// enclosing type's bases and never considers the enclosing type
363 /// itself. `false` for every other ref kind, including a plain `this.M`
364 /// qualifier (which resolves through the ordinary typed-receiver path
365 /// against the enclosing type itself). Appended LAST of all.
366 pub receiver_base: bool,
367 /// `true` when this ref's `receiver_call_owner`/`receiver_call_member`
368 /// pair came from an AWAITED call (`var x = await Q.M()`, `_client` a
369 /// field: `var order = await _client.FetchAsync()`) -- the resolver reads
370 /// it to decide whether to unwrap exactly one `Task<...>`/`ValueTask<...>`
371 /// layer off `M`'s recorded return type before typing the local. `false`
372 /// for an unawaited call fact and for every ref carrying no call fact at
373 /// all, which is what keeps `var t = x.FetchAsync(); t.Wait();` typed as
374 /// `Task` rather than unwrapped. Appended LAST of all, after
375 /// `receiver_base`.
376 pub receiver_awaited: bool,
377 /// `true` when this ref's qualifier is a bare identifier for which the
378 /// enclosing MEMBER's own fact table -- `Scope::has_local_fact`, the
379 /// SAME `member_facts` table `receiver_fact_for` reads first -- holds
380 /// ANY entry for the name: a local, a parameter, an explicitly-typed
381 /// lambda parameter, a pattern designation, or an `out` designation,
382 /// typed or taken-but-unknown. A member-scoped name always shadows a
383 /// same-named field regardless of whether anything vouches for its
384 /// type, so the resolver's bare-identifier field/property fallback
385 /// (Unit B) reads this to refuse running at all when it is `true` --
386 /// the one shape a resolved `receiver_type`/`receiver_call_owner` of
387 /// `None` cannot itself distinguish from "no fact anywhere for this
388 /// name". `false` for a dotted or generic qualifier, for `this.`/
389 /// `base.` (never asked of the enclosing scope's local table), and for
390 /// every ref kind but `uses-member`. Appended LAST of all, after
391 /// `receiver_awaited`.
392 pub receiver_local: bool,
393 /// Set when this ref's qualifier is an untyped lambda parameter whose
394 /// type is a delegate parameter of some OTHER callee -- a lookup only
395 /// the resolver can do. Never set alongside `receiver_type` or
396 /// `receiver_call_owner`: the three are mutually exclusive on one ref.
397 /// `receiver_local` still reads `true` for such a ref (the parameter
398 /// IS a member-scoped name), and `receiver_type` stays `None`. Appended
399 /// LAST of all, after `receiver_local`.
400 pub receiver_lambda: Option<LambdaSlot>,
401 /// `true` when `receiver_type` came off a declaration whose own type
402 /// node was a `nullable_type` (`Widget? w`) -- see `Fact::nullable`,
403 /// which this carries verbatim off the SAME receiver fact
404 /// `receiver_type`/`receiver_args` already came off. `false` for every
405 /// ref kind, and for a `receiver_type` that came from anywhere but a
406 /// plain declared-type fact (a call-hop return, a lambda-slot type, a
407 /// bare field/property fallback: none of those can be nullable-
408 /// annotated, since none of them read a type node directly). Appended
409 /// LAST of all, after `receiver_lambda`.
410 pub receiver_nullable: bool,
411 /// The parameter count of each delegate-shaped argument of the
412 /// invocation this ref is the callee of -- a lambda literal, or a bare
413 /// identifier naming one unshadowed local function in scope -- one
414 /// entry per argument position (`None` at every other position), or
415 /// `None` entirely when the ref is not invocation-shaped or names no
416 /// such argument at all. `x => ...` counts 1 parameter, `(a, b) => ...`
417 /// counts 2, `() => ...` counts 0, a local function counts its own
418 /// declared parameters -- the argument's OWN arity, never the delegate
419 /// type it will end up bound to (that binding is exactly what this fact
420 /// lets the resolver judge, rather than assume). Appended LAST of all,
421 /// after `receiver_nullable`.
422 pub lambda_arg_arity: Option<Vec<Option<usize>>>,
423}
424
425/// Represents `UsingRecord`.
426pub enum UsingRecord {
427 /// The value value.
428 Alias {
429 /// The alias name.
430 alias: String,
431 /// The aliased target.
432 target: String,
433 /// Whether the directive is global.
434 global: bool,
435 },
436 /// The value value.
437 Plain {
438 /// The imported namespace text.
439 text: String,
440 /// Whether the directive is global.
441 global: bool,
442 },
443}
444
445/// Represents `Extraction`.
446pub struct Extraction {
447 /// The purpose value.
448 pub purpose: Option<String>,
449 /// The defs value.
450 pub defs: Vec<DefRecord>,
451 /// The usings value.
452 pub usings: Vec<UsingRecord>,
453 /// The refs value.
454 pub refs: Vec<RefRecord>,
455 /// Every member the file's types declare, appended LAST after
456 /// `refs` in both the fragment and the `extract-dump` shape.
457 pub names: Vec<NameRecord>,
458 /// Every two-type-argument DI service registration the file's
459 /// invocations record, appended LAST after `names`. See
460 /// `RegistrationRecord`.
461 pub registrations: Vec<RegistrationRecord>,
462 /// Every message-bus publish-site fact the file's invocations record,
463 /// appended LAST after `registrations`. See `PublishRecord`.
464 pub publishes: Vec<PublishRecord>,
465 /// Every one-type-argument handler registration the file's invocations
466 /// record, appended LAST after `publishes`. See
467 /// `HandlerRegistrationRecord`.
468 pub handler_registrations: Vec<HandlerRegistrationRecord>,
469}
470
471/// One one-type-argument handler registration: an invocation whose name
472/// reads as an installation and which names exactly one type.
473///
474/// This is the fact a repository's own message vocabulary is derived from.
475/// The named type's base list says which generic base that repository
476/// treats as a handler shape and at which position it carries its message,
477/// so a bus whose type names appear nowhere in this engine is still
478/// recognized from the repository's own registrations. `handler` carries
479/// the type argument's descriptor as written; resolving it is the
480/// resolver's job, not the extractor's.
481#[derive(Debug, Clone, PartialEq)]
482pub struct HandlerRegistrationRecord {
483 /// The registered type's descriptor, as written.
484 pub handler: String,
485 /// The registration call's enclosing namespace.
486 pub namespace: String,
487 /// The registration call's 1-based line.
488 pub line: usize,
489}
490
491/// One two-type-argument DI service registration.
492///
493/// The shape is an invocation whose method name begins `Add` or `TryAdd`
494/// and ends `Singleton`, `Scoped` or `Transient`, carrying exactly two type
495/// arguments -- the first the service type, the second the implementation
496/// type. `service`/`implementation` carry the type argument's raw text
497/// verbatim (dotted when the source wrote it qualified); splitting a dotted
498/// name into its bare tail plus its full qualified form, the way an
499/// ordinary type reference does, is the resolver's job, not the
500/// extractor's.
501#[derive(Debug, Clone, PartialEq)]
502pub struct RegistrationRecord {
503 /// The service (first type argument) name, as written.
504 pub service: String,
505 /// The implementation (second type argument) name, as written.
506 pub implementation: String,
507 /// The registration call's enclosing namespace.
508 pub namespace: String,
509 /// The registration call's 1-based line.
510 pub line: usize,
511}
512
513/// One declared name and the line its own NAME TOKEN sits on. Deliberately
514/// not the declaration node's start row: a member's span begins
515/// at its attribute list, so an attributed member would point a reader at the
516/// `[` line instead of the line carrying the name they searched for.
517///
518/// Serialized field order (`name`, `kind`, `line`, `owner`) is significant;
519/// `owner` is omitted when empty, which is how a markup or resource
520/// key -- built by `markup.rs`, owned by no C# type -- serializes with three
521/// fields.
522#[derive(Debug, Clone, PartialEq)]
523pub struct NameRecord {
524 /// The name value.
525 pub name: String,
526 /// The kind value.
527 pub kind: String,
528 /// The line value.
529 pub line: usize,
530 /// The owner value.
531 pub owner: String,
532}
533
534/// One untyped lambda parameter's callee slot.
535///
536/// The name's type is the delegate parameter of the invocation the lambda
537/// sits inside as an argument -- a lookup only the resolver can do (it has
538/// to look up the callee's own delegate-typed parameter at `arg_index` and
539/// read ITS `index`-th parameter type). `owner`/`member` name the callee like
540/// a call fact's `type_name`/`call` do; `arg_count`/`arg_index` locate the
541/// lambda among the callee's arguments; `arity`/`index` locate this
542/// parameter inside the lambda itself.
543#[derive(Debug, Clone, PartialEq, Eq)]
544pub struct LambdaSlot {
545 /// The type-name text the callee is invoked on: the identifier's
546 /// in-file fact type, the identifier itself when the name is not taken
547 /// (a static class), or the innermost enclosing type for `this.M(...)`
548 /// / bare `M(...)`.
549 pub owner: String,
550 /// The callee method name.
551 pub member: String,
552 /// The argument count of the callee invocation.
553 pub arg_count: usize,
554 /// The position of the lambda among the callee invocation's arguments.
555 pub arg_index: usize,
556 /// The lambda's own parameter count.
557 pub arity: usize,
558 /// This parameter's position inside the lambda's parameter list.
559 pub index: usize,
560}
561
562/// One receiver fact: the declared type NAME plus that type's top-level
563/// type-argument descriptors when it carried any. Two facts agree only when
564/// BOTH halves do, so `Box<int> a` and `Box<string> a` in sibling blocks
565/// conflict exactly like two different type names would.
566#[derive(Clone, PartialEq, Eq)]
567pub struct Fact {
568 /// The type name value.
569 pub type_name: String,
570 /// The args value.
571 pub args: Option<Vec<String>>,
572 /// When set, the name's type is whatever the method of this name returns
573 /// on the type `type_name` stands for, a lookup only the resolver can do.
574 /// Part of the equality the table compares, so `var x = A.Make()` and
575 /// `var x = A.Build()` in sibling blocks conflict exactly like two
576 /// different type names would.
577 pub call: Option<String>,
578 /// `true` when this is a call fact (`call.is_some()`) built from an
579 /// AWAITED invocation (`var x = await Q.M()`); meaningless -- and always
580 /// `false` -- when `call` is `None`. Part of the equality the table
581 /// compares, so `var x = Q.M()` and `var x = await Q.M()` in sibling
582 /// blocks conflict exactly like two different callees would, rather than
583 /// silently picking one awaited-ness for a name the source gives two.
584 pub awaited: bool,
585 /// `true` when the declaration's own type node was, at its TOP level, an
586 /// `array_type` (`Widget[]`) -- set ONLY by `type_fact`, `false`
587 /// everywhere else (a call fact, a receiver-args unwrap, `this`/`base`'s
588 /// own fact: none of those can be an array). `base_type_identifier`
589 /// already collapses `Widget[]` to the same `type_name`/`args` shape a
590 /// plain `Widget` field would carry (the element type's own base
591 /// identifier, no type-argument list), so this bit is the ONLY signal
592 /// left that distinguishes "one Widget" from "an array of Widget" --
593 /// needed by the lambda-parameter element-typing rule, which must tell
594 /// `Widget[]` apart from `Widget` even though both facts otherwise read
595 /// identically. Part of the equality the table compares.
596 pub is_array: bool,
597 /// `true` when the declaration's own type node was, at its TOP level, a
598 /// `nullable_type` (`Widget?`) -- set ONLY by `type_fact`, `false`
599 /// everywhere else, mirroring `is_array`: a call fact, a receiver-args
600 /// unwrap and `this`/`base`'s own fact are never nullable-annotated.
601 /// `base_type_identifier` already unwraps `Widget?` to the same
602 /// `type_name` a plain `Widget` field would carry, so this bit is the
603 /// only signal left that a `System.Nullable<T>` sits between the
604 /// declared name and the value -- needed so the resolver can refuse a
605 /// member the wrapper itself owns (`.Value`, `.HasValue`,
606 /// `.GetValueOrDefault`) rather than binding `T`'s own same-named
607 /// member. Part of the equality the table compares.
608 pub nullable: bool,
609 /// When set, the name is an untyped lambda parameter whose type is the
610 /// corresponding delegate parameter of the callee this slot names -- a
611 /// lookup only the resolver can do; `type_name` is empty and `call` is
612 /// `None`. Part of the equality the table compares, so two sibling
613 /// lambdas binding the same parameter name to different callees
614 /// conflict exactly like two different type names would.
615 pub lambda: Option<LambdaSlot>,
616}