]>
Commit | Line | Data |
---|---|---|
a945c346 | 1 | // Copyright (C) 2020-2024 Free Software Foundation, Inc. |
8ad1d56d PH |
2 | |
3 | // This file is part of GCC. | |
4 | ||
5 | // GCC is free software; you can redistribute it and/or modify it under | |
6 | // the terms of the GNU General Public License as published by the Free | |
7 | // Software Foundation; either version 3, or (at your option) any later | |
8 | // version. | |
9 | ||
10 | // GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
11 | // WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
13 | // for more details. | |
14 | ||
15 | // You should have received a copy of the GNU General Public License | |
16 | // along with GCC; see the file COPYING3. If not see | |
17 | // <http://www.gnu.org/licenses/>. | |
18 | ||
19 | #ifndef RUST_HIR_ITEM_H | |
20 | #define RUST_HIR_ITEM_H | |
21 | ||
22 | #include "rust-abi.h" | |
23 | #include "rust-ast-full-decls.h" | |
24 | #include "rust-common.h" | |
25 | #include "rust-hir.h" | |
26 | #include "rust-hir-path.h" | |
27 | ||
28 | namespace Rust { | |
29 | namespace HIR { | |
30 | // forward decls | |
31 | class BlockExpr; | |
32 | class TypePath; | |
33 | ||
34 | // A type generic parameter (as opposed to a lifetime generic parameter) | |
35 | class TypeParam : public GenericParam | |
36 | { | |
37 | // bool has_outer_attribute; | |
38 | // std::unique_ptr<Attribute> outer_attr; | |
39 | AST::Attribute outer_attr; | |
40 | ||
41 | Identifier type_representation; | |
42 | ||
43 | // bool has_type_param_bounds; | |
44 | // TypeParamBounds type_param_bounds; | |
45 | std::vector<std::unique_ptr<TypeParamBound>> | |
46 | type_param_bounds; // inlined form | |
47 | ||
48 | // bool has_type; | |
49 | std::unique_ptr<Type> type; | |
50 | ||
51 | Location locus; | |
52 | ||
53 | public: | |
54 | // Returns whether the type of the type param has been specified. | |
55 | bool has_type () const { return type != nullptr; } | |
56 | ||
57 | // Returns whether the type param has type param bounds. | |
58 | bool has_type_param_bounds () const { return !type_param_bounds.empty (); } | |
59 | ||
60 | // Returns whether the type param has an outer attribute. | |
61 | bool has_outer_attribute () const { return !outer_attr.is_empty (); } | |
62 | ||
63 | TypeParam (Analysis::NodeMapping mappings, Identifier type_representation, | |
64 | Location locus = Location (), | |
65 | std::vector<std::unique_ptr<TypeParamBound>> type_param_bounds | |
66 | = std::vector<std::unique_ptr<TypeParamBound>> (), | |
67 | std::unique_ptr<Type> type = nullptr, | |
68 | AST::Attribute outer_attr = AST::Attribute::create_empty ()) | |
69 | : GenericParam (mappings), outer_attr (std::move (outer_attr)), | |
70 | type_representation (std::move (type_representation)), | |
71 | type_param_bounds (std::move (type_param_bounds)), | |
72 | type (std::move (type)), locus (locus) | |
73 | {} | |
74 | ||
75 | // Copy constructor uses clone | |
76 | TypeParam (TypeParam const &other) | |
77 | : GenericParam (other.mappings), outer_attr (other.outer_attr), | |
78 | type_representation (other.type_representation), locus (other.locus) | |
79 | { | |
80 | // guard to prevent null pointer dereference | |
81 | if (other.type != nullptr) | |
82 | type = other.type->clone_type (); | |
83 | ||
84 | type_param_bounds.reserve (other.type_param_bounds.size ()); | |
85 | for (const auto &e : other.type_param_bounds) | |
86 | type_param_bounds.push_back (e->clone_type_param_bound ()); | |
87 | } | |
88 | ||
89 | // Overloaded assignment operator to clone | |
90 | TypeParam &operator= (TypeParam const &other) | |
91 | { | |
92 | type_representation = other.type_representation; | |
93 | outer_attr = other.outer_attr; | |
94 | locus = other.locus; | |
95 | mappings = other.mappings; | |
96 | ||
97 | // guard to prevent null pointer dereference | |
98 | if (other.type != nullptr) | |
99 | type = other.type->clone_type (); | |
100 | else | |
101 | type = nullptr; | |
102 | ||
103 | type_param_bounds.reserve (other.type_param_bounds.size ()); | |
104 | for (const auto &e : other.type_param_bounds) | |
105 | type_param_bounds.push_back (e->clone_type_param_bound ()); | |
106 | ||
107 | return *this; | |
108 | } | |
109 | // move constructors | |
110 | TypeParam (TypeParam &&other) = default; | |
111 | TypeParam &operator= (TypeParam &&other) = default; | |
112 | ||
113 | std::string as_string () const override; | |
114 | ||
115 | Location get_locus () const override final { return locus; } | |
116 | ||
117 | void accept_vis (HIRFullVisitor &vis) override; | |
118 | ||
119 | Identifier get_type_representation () const { return type_representation; } | |
120 | ||
121 | std::unique_ptr<Type> &get_type () | |
122 | { | |
123 | rust_assert (type != nullptr); | |
124 | return type; | |
125 | } | |
126 | ||
127 | Analysis::NodeMapping get_type_mappings () const | |
128 | { | |
129 | rust_assert (type != nullptr); | |
130 | return type->get_mappings (); | |
131 | } | |
132 | ||
133 | std::vector<std::unique_ptr<TypeParamBound>> &get_type_param_bounds () | |
134 | { | |
135 | return type_param_bounds; | |
136 | } | |
137 | ||
138 | protected: | |
139 | // Clone function implementation as (not pure) virtual method | |
140 | TypeParam *clone_generic_param_impl () const override | |
141 | { | |
142 | return new TypeParam (*this); | |
143 | } | |
144 | }; | |
145 | ||
146 | /* "where" clause item base. Abstract - use LifetimeWhereClauseItem, | |
147 | * TypeBoundWhereClauseItem */ | |
148 | class WhereClauseItem | |
149 | { | |
150 | public: | |
151 | enum ItemType | |
152 | { | |
153 | LIFETIME, | |
154 | TYPE_BOUND, | |
155 | }; | |
156 | ||
157 | virtual ~WhereClauseItem () {} | |
158 | ||
159 | // Unique pointer custom clone function | |
160 | std::unique_ptr<WhereClauseItem> clone_where_clause_item () const | |
161 | { | |
162 | return std::unique_ptr<WhereClauseItem> (clone_where_clause_item_impl ()); | |
163 | } | |
164 | ||
165 | virtual std::string as_string () const = 0; | |
166 | ||
167 | virtual void accept_vis (HIRFullVisitor &vis) = 0; | |
168 | ||
169 | virtual Analysis::NodeMapping get_mappings () const = 0; | |
170 | ||
171 | virtual ItemType get_item_type () const = 0; | |
172 | ||
173 | protected: | |
174 | // Clone function implementation as pure virtual method | |
175 | virtual WhereClauseItem *clone_where_clause_item_impl () const = 0; | |
176 | }; | |
177 | ||
178 | // A lifetime where clause item | |
179 | class LifetimeWhereClauseItem : public WhereClauseItem | |
180 | { | |
181 | Lifetime lifetime; | |
182 | std::vector<Lifetime> lifetime_bounds; | |
183 | Location locus; | |
184 | Analysis::NodeMapping mappings; | |
185 | ||
186 | public: | |
187 | LifetimeWhereClauseItem (Analysis::NodeMapping mappings, Lifetime lifetime, | |
188 | std::vector<Lifetime> lifetime_bounds, | |
189 | Location locus) | |
190 | : lifetime (std::move (lifetime)), | |
191 | lifetime_bounds (std::move (lifetime_bounds)), locus (locus), | |
192 | mappings (std::move (mappings)) | |
193 | {} | |
194 | ||
195 | std::string as_string () const override; | |
196 | ||
197 | void accept_vis (HIRFullVisitor &vis) override; | |
198 | ||
199 | Lifetime &get_lifetime () { return lifetime; } | |
200 | ||
201 | std::vector<Lifetime> &get_lifetime_bounds () { return lifetime_bounds; } | |
202 | ||
203 | Analysis::NodeMapping get_mappings () const override final | |
204 | { | |
205 | return mappings; | |
206 | }; | |
207 | ||
208 | ItemType get_item_type () const override final | |
209 | { | |
210 | return WhereClauseItem::ItemType::LIFETIME; | |
211 | } | |
212 | ||
213 | protected: | |
214 | // Clone function implementation as (not pure) virtual method | |
215 | LifetimeWhereClauseItem *clone_where_clause_item_impl () const override | |
216 | { | |
217 | return new LifetimeWhereClauseItem (*this); | |
218 | } | |
219 | }; | |
220 | ||
221 | // A type bound where clause item | |
222 | class TypeBoundWhereClauseItem : public WhereClauseItem | |
223 | { | |
224 | std::vector<LifetimeParam> for_lifetimes; | |
225 | std::unique_ptr<Type> bound_type; | |
226 | std::vector<std::unique_ptr<TypeParamBound>> type_param_bounds; | |
227 | Analysis::NodeMapping mappings; | |
228 | Location locus; | |
229 | ||
230 | public: | |
231 | // Returns whether the item has ForLifetimes | |
232 | bool has_for_lifetimes () const { return !for_lifetimes.empty (); } | |
233 | ||
234 | // Returns whether the item has type param bounds | |
235 | bool has_type_param_bounds () const { return !type_param_bounds.empty (); } | |
236 | ||
237 | TypeBoundWhereClauseItem ( | |
238 | Analysis::NodeMapping mappings, std::vector<LifetimeParam> for_lifetimes, | |
239 | std::unique_ptr<Type> bound_type, | |
240 | std::vector<std::unique_ptr<TypeParamBound>> type_param_bounds, | |
241 | Location locus) | |
242 | : for_lifetimes (std::move (for_lifetimes)), | |
243 | bound_type (std::move (bound_type)), | |
244 | type_param_bounds (std::move (type_param_bounds)), | |
245 | mappings (std::move (mappings)), locus (locus) | |
246 | {} | |
247 | ||
248 | // Copy constructor requires clone | |
249 | TypeBoundWhereClauseItem (TypeBoundWhereClauseItem const &other) | |
250 | : for_lifetimes (other.for_lifetimes), | |
251 | bound_type (other.bound_type->clone_type ()), mappings (other.mappings) | |
252 | { | |
253 | type_param_bounds.reserve (other.type_param_bounds.size ()); | |
254 | for (const auto &e : other.type_param_bounds) | |
255 | type_param_bounds.push_back (e->clone_type_param_bound ()); | |
256 | } | |
257 | ||
258 | // Overload assignment operator to clone | |
259 | TypeBoundWhereClauseItem &operator= (TypeBoundWhereClauseItem const &other) | |
260 | { | |
261 | mappings = other.mappings; | |
262 | for_lifetimes = other.for_lifetimes; | |
263 | bound_type = other.bound_type->clone_type (); | |
264 | type_param_bounds.reserve (other.type_param_bounds.size ()); | |
265 | for (const auto &e : other.type_param_bounds) | |
266 | type_param_bounds.push_back (e->clone_type_param_bound ()); | |
267 | ||
268 | return *this; | |
269 | } | |
270 | ||
271 | // move constructors | |
272 | TypeBoundWhereClauseItem (TypeBoundWhereClauseItem &&other) = default; | |
273 | TypeBoundWhereClauseItem &operator= (TypeBoundWhereClauseItem &&other) | |
274 | = default; | |
275 | ||
276 | std::string as_string () const override; | |
277 | ||
278 | void accept_vis (HIRFullVisitor &vis) override; | |
279 | ||
280 | std::vector<LifetimeParam> &get_for_lifetimes () { return for_lifetimes; } | |
281 | ||
282 | std::unique_ptr<Type> &get_bound_type () { return bound_type; } | |
283 | ||
284 | std::vector<std::unique_ptr<TypeParamBound>> &get_type_param_bounds () | |
285 | { | |
286 | return type_param_bounds; | |
287 | } | |
288 | ||
289 | Analysis::NodeMapping get_mappings () const override final | |
290 | { | |
291 | return mappings; | |
292 | }; | |
293 | ||
294 | ItemType get_item_type () const override final | |
295 | { | |
296 | return WhereClauseItem::ItemType::TYPE_BOUND; | |
297 | } | |
298 | ||
299 | protected: | |
300 | // Clone function implementation as (not pure) virtual method | |
301 | TypeBoundWhereClauseItem *clone_where_clause_item_impl () const override | |
302 | { | |
303 | return new TypeBoundWhereClauseItem (*this); | |
304 | } | |
305 | }; | |
306 | ||
307 | // A where clause | |
308 | struct WhereClause | |
309 | { | |
310 | private: | |
311 | std::vector<std::unique_ptr<WhereClauseItem>> where_clause_items; | |
312 | ||
313 | // should this store location info? | |
314 | ||
315 | public: | |
316 | WhereClause (std::vector<std::unique_ptr<WhereClauseItem>> where_clause_items) | |
317 | : where_clause_items (std::move (where_clause_items)) | |
318 | {} | |
319 | ||
320 | // copy constructor with vector clone | |
321 | WhereClause (WhereClause const &other) | |
322 | { | |
323 | where_clause_items.reserve (other.where_clause_items.size ()); | |
324 | for (const auto &e : other.where_clause_items) | |
325 | where_clause_items.push_back (e->clone_where_clause_item ()); | |
326 | } | |
327 | ||
328 | // overloaded assignment operator with vector clone | |
329 | WhereClause &operator= (WhereClause const &other) | |
330 | { | |
331 | where_clause_items.reserve (other.where_clause_items.size ()); | |
332 | for (const auto &e : other.where_clause_items) | |
333 | where_clause_items.push_back (e->clone_where_clause_item ()); | |
334 | ||
335 | return *this; | |
336 | } | |
337 | ||
338 | // move constructors | |
339 | WhereClause (WhereClause &&other) = default; | |
340 | WhereClause &operator= (WhereClause &&other) = default; | |
341 | ||
342 | // Creates a WhereClause with no items. | |
343 | static WhereClause create_empty () | |
344 | { | |
345 | return WhereClause (std::vector<std::unique_ptr<WhereClauseItem>> ()); | |
346 | } | |
347 | ||
348 | // Returns whether the WhereClause has no items. | |
349 | bool is_empty () const { return where_clause_items.empty (); } | |
350 | ||
351 | std::string as_string () const; | |
352 | ||
353 | std::vector<std::unique_ptr<WhereClauseItem>> &get_items () | |
354 | { | |
355 | return where_clause_items; | |
356 | } | |
357 | const std::vector<std::unique_ptr<WhereClauseItem>> &get_items () const | |
358 | { | |
359 | return where_clause_items; | |
360 | } | |
361 | }; | |
362 | ||
363 | // A self parameter in a method | |
364 | struct SelfParam | |
365 | { | |
366 | public: | |
367 | enum ImplicitSelfKind | |
368 | { | |
369 | IMM, // self | |
370 | MUT, // mut self | |
371 | IMM_REF, // &self | |
372 | MUT_REF, // &mut self | |
373 | NONE | |
374 | }; | |
375 | ||
376 | private: | |
377 | ImplicitSelfKind self_kind; | |
378 | Lifetime lifetime; | |
379 | std::unique_ptr<Type> type; | |
380 | Location locus; | |
381 | Analysis::NodeMapping mappings; | |
382 | ||
383 | SelfParam (Analysis::NodeMapping mappings, ImplicitSelfKind self_kind, | |
384 | Lifetime lifetime, Type *type) | |
385 | : self_kind (self_kind), lifetime (std::move (lifetime)), type (type), | |
386 | mappings (mappings) | |
387 | {} | |
388 | ||
389 | public: | |
390 | // Type-based self parameter (not ref, no lifetime) | |
391 | SelfParam (Analysis::NodeMapping mappings, std::unique_ptr<Type> type, | |
392 | bool is_mut, Location locus) | |
393 | : self_kind (is_mut ? ImplicitSelfKind::MUT : ImplicitSelfKind::IMM), | |
394 | lifetime ( | |
395 | Lifetime (mappings, AST::Lifetime::LifetimeType::NAMED, "", locus)), | |
396 | type (std::move (type)), locus (locus), mappings (mappings) | |
397 | {} | |
398 | ||
399 | // Lifetime-based self parameter (is ref, no type) | |
400 | SelfParam (Analysis::NodeMapping mappings, Lifetime lifetime, bool is_mut, | |
401 | Location locus) | |
402 | : self_kind (is_mut ? ImplicitSelfKind::MUT_REF | |
403 | : ImplicitSelfKind::IMM_REF), | |
404 | lifetime (std::move (lifetime)), locus (locus), mappings (mappings) | |
405 | {} | |
406 | ||
407 | // Copy constructor requires clone | |
408 | SelfParam (SelfParam const &other) | |
409 | : self_kind (other.self_kind), lifetime (other.lifetime), | |
410 | locus (other.locus), mappings (other.mappings) | |
411 | { | |
412 | if (other.type != nullptr) | |
413 | type = other.type->clone_type (); | |
414 | } | |
415 | ||
416 | // Overload assignment operator to use clone | |
417 | SelfParam &operator= (SelfParam const &other) | |
418 | { | |
419 | if (other.type != nullptr) | |
420 | type = other.type->clone_type (); | |
421 | ||
422 | self_kind = other.self_kind; | |
423 | lifetime = other.lifetime; | |
424 | locus = other.locus; | |
425 | mappings = other.mappings; | |
426 | ||
427 | return *this; | |
428 | } | |
429 | ||
430 | // move constructors | |
431 | SelfParam (SelfParam &&other) = default; | |
432 | SelfParam &operator= (SelfParam &&other) = default; | |
433 | ||
434 | static SelfParam error () | |
435 | { | |
436 | return SelfParam (Analysis::NodeMapping::get_error (), | |
437 | ImplicitSelfKind::NONE, Lifetime::error (), nullptr); | |
438 | } | |
439 | ||
440 | // Returns whether the self-param has a type field. | |
441 | bool has_type () const { return type != nullptr; } | |
442 | ||
443 | // Returns whether the self-param has a valid lifetime. | |
444 | bool has_lifetime () const { return !lifetime.is_error (); } | |
445 | ||
446 | // Returns whether the self-param is in an error state. | |
447 | bool is_error () const { return self_kind == ImplicitSelfKind::NONE; } | |
448 | ||
449 | std::string as_string () const; | |
450 | ||
451 | Location get_locus () const { return locus; } | |
452 | ||
453 | ImplicitSelfKind get_self_kind () const { return self_kind; } | |
454 | ||
455 | std::unique_ptr<Type> &get_type () | |
456 | { | |
457 | rust_assert (has_type ()); | |
458 | return type; | |
459 | } | |
460 | ||
461 | Analysis::NodeMapping get_mappings () { return mappings; } | |
462 | ||
463 | Mutability get_mut () const | |
464 | { | |
465 | return (self_kind == ImplicitSelfKind::MUT | |
466 | || self_kind == ImplicitSelfKind::MUT_REF) | |
467 | ? Mutability::Mut | |
468 | : Mutability::Imm; | |
469 | } | |
470 | ||
471 | bool is_mut () const | |
472 | { | |
473 | return self_kind == ImplicitSelfKind::MUT | |
474 | || self_kind == ImplicitSelfKind::MUT_REF; | |
475 | } | |
476 | ||
477 | bool is_ref () const | |
478 | { | |
479 | return self_kind == ImplicitSelfKind::IMM_REF | |
480 | || self_kind == ImplicitSelfKind::MUT_REF; | |
481 | } | |
482 | }; | |
483 | ||
484 | // Qualifiers for function, i.e. const, unsafe, extern etc. | |
485 | struct FunctionQualifiers | |
486 | { | |
487 | private: | |
488 | AsyncConstStatus const_status; | |
489 | Unsafety unsafety; | |
490 | bool has_extern; | |
491 | ABI abi; | |
492 | ||
493 | public: | |
494 | FunctionQualifiers (AsyncConstStatus const_status, Unsafety unsafety, | |
495 | bool has_extern, ABI abi) | |
496 | : const_status (const_status), unsafety (unsafety), has_extern (has_extern), | |
497 | abi (abi) | |
498 | {} | |
499 | ||
500 | std::string as_string () const; | |
501 | ||
502 | AsyncConstStatus get_status () const { return const_status; } | |
503 | ||
504 | bool is_const () const { return const_status == AsyncConstStatus::CONST_FN; } | |
505 | bool is_unsafe () const { return unsafety == Unsafety::Unsafe; } | |
506 | ||
507 | ABI get_abi () const { return abi; } | |
508 | }; | |
509 | ||
510 | // A function parameter | |
511 | struct FunctionParam | |
512 | { | |
513 | std::unique_ptr<Pattern> param_name; | |
514 | std::unique_ptr<Type> type; | |
515 | Location locus; | |
516 | Analysis::NodeMapping mappings; | |
517 | ||
518 | public: | |
519 | FunctionParam (Analysis::NodeMapping mappings, | |
520 | std::unique_ptr<Pattern> param_name, | |
521 | std::unique_ptr<Type> param_type, Location locus) | |
522 | : param_name (std::move (param_name)), type (std::move (param_type)), | |
523 | locus (locus), mappings (mappings) | |
524 | {} | |
525 | ||
526 | // Copy constructor uses clone | |
527 | FunctionParam (FunctionParam const &other) | |
528 | : param_name (other.param_name->clone_pattern ()), | |
529 | type (other.type->clone_type ()), locus (other.locus), | |
530 | mappings (other.mappings) | |
531 | {} | |
532 | ||
533 | // Overload assignment operator to use clone | |
534 | FunctionParam &operator= (FunctionParam const &other) | |
535 | { | |
536 | param_name = other.param_name->clone_pattern (); | |
537 | type = other.type->clone_type (); | |
538 | locus = other.locus; | |
539 | mappings = other.mappings; | |
540 | ||
541 | return *this; | |
542 | } | |
543 | ||
544 | // move constructors | |
545 | FunctionParam (FunctionParam &&other) = default; | |
546 | FunctionParam &operator= (FunctionParam &&other) = default; | |
547 | ||
548 | std::string as_string () const; | |
549 | ||
550 | Location get_locus () const { return locus; } | |
551 | ||
552 | Pattern *get_param_name () { return param_name.get (); } | |
553 | ||
554 | Type *get_type () { return type.get (); } | |
555 | ||
556 | const Analysis::NodeMapping &get_mappings () const { return mappings; } | |
557 | }; | |
558 | ||
559 | // Visibility of an item | |
560 | struct Visibility | |
561 | { | |
562 | public: | |
563 | enum VisType | |
564 | { | |
565 | PRIVATE, | |
566 | PUBLIC, | |
567 | RESTRICTED, | |
568 | ERROR, | |
569 | }; | |
570 | ||
571 | private: | |
572 | VisType vis_type; | |
573 | HIR::SimplePath path; | |
b8422289 | 574 | Location locus; |
8ad1d56d PH |
575 | |
576 | // should this store location info? | |
577 | ||
578 | public: | |
579 | Visibility (VisType vis_type, | |
b8422289 D |
580 | HIR::SimplePath path = HIR::SimplePath::create_empty (), |
581 | Location locus = Location ()) | |
582 | : vis_type (vis_type), path (std::move (path)), locus (locus) | |
8ad1d56d PH |
583 | {} |
584 | ||
585 | // Returns whether visibility is in an error state. | |
586 | bool is_error () const { return vis_type == ERROR; } | |
587 | ||
588 | // Does the current visibility refer to a simple `pub <item>` entirely public | |
589 | bool is_public () const { return vis_type == PUBLIC; } | |
590 | ||
591 | // Is the current visibility public restricted to a certain path | |
592 | bool is_restricted () const { return vis_type == RESTRICTED; } | |
593 | ||
594 | // Creates an error visibility. | |
595 | static Visibility create_error () | |
596 | { | |
597 | return Visibility (ERROR, HIR::SimplePath::create_empty ()); | |
598 | } | |
599 | ||
600 | VisType get_vis_type () const { return vis_type; } | |
601 | ||
602 | const HIR::SimplePath &get_path () const | |
603 | { | |
604 | rust_assert (!is_error ()); | |
605 | return path; | |
606 | } | |
607 | ||
608 | std::string as_string () const; | |
609 | }; | |
610 | ||
611 | // Item that supports visibility - abstract base class | |
612 | class VisItem : public Item | |
613 | { | |
614 | Visibility visibility; | |
615 | ||
616 | protected: | |
617 | // Visibility constructor | |
618 | VisItem (Analysis::NodeMapping mappings, Visibility visibility, | |
619 | AST::AttrVec outer_attrs = AST::AttrVec ()) | |
620 | : Item (std::move (mappings), std::move (outer_attrs)), | |
621 | visibility (std::move (visibility)) | |
622 | {} | |
623 | ||
624 | // Visibility copy constructor | |
625 | VisItem (VisItem const &other) : Item (other), visibility (other.visibility) | |
626 | {} | |
627 | ||
628 | // Overload assignment operator to clone | |
629 | VisItem &operator= (VisItem const &other) | |
630 | { | |
631 | Item::operator= (other); | |
632 | visibility = other.visibility; | |
633 | // outer_attrs = other.outer_attrs; | |
634 | ||
635 | return *this; | |
636 | } | |
637 | ||
638 | // move constructors | |
639 | VisItem (VisItem &&other) = default; | |
640 | VisItem &operator= (VisItem &&other) = default; | |
641 | ||
642 | public: | |
643 | using HIR::Stmt::accept_vis; | |
644 | ||
645 | BaseKind get_hir_kind () override final { return VIS_ITEM; } | |
646 | ||
647 | /* Does the item have some kind of public visibility (non-default | |
648 | * visibility)? */ | |
649 | bool has_visibility () const { return !visibility.is_error (); } | |
650 | ||
651 | virtual void accept_vis (HIRVisItemVisitor &vis) = 0; | |
652 | ||
653 | Visibility &get_visibility () { return visibility; } | |
654 | const Visibility &get_visibility () const { return visibility; } | |
655 | ||
656 | std::string as_string () const override; | |
657 | }; | |
658 | ||
659 | // Rust module item - abstract base class | |
660 | class Module : public VisItem | |
661 | { | |
662 | Identifier module_name; | |
663 | Location locus; | |
664 | // bool has_inner_attrs; | |
665 | AST::AttrVec inner_attrs; | |
666 | // bool has_items; | |
667 | std::vector<std::unique_ptr<Item>> items; | |
668 | ||
669 | public: | |
670 | std::string as_string () const override; | |
671 | ||
672 | // Returns whether the module has items in its body. | |
673 | bool has_items () const { return !items.empty (); } | |
674 | ||
675 | // Returns whether the module has any inner attributes. | |
676 | bool has_inner_attrs () const { return !inner_attrs.empty (); } | |
677 | ||
678 | // Full constructor | |
679 | Module (Analysis::NodeMapping mappings, Identifier module_name, | |
680 | Location locus, std::vector<std::unique_ptr<Item>> items, | |
681 | Visibility visibility = Visibility::create_error (), | |
682 | AST::AttrVec inner_attrs = AST::AttrVec (), | |
683 | AST::AttrVec outer_attrs = AST::AttrVec ()) | |
684 | : VisItem (std::move (mappings), std::move (visibility), | |
685 | std::move (outer_attrs)), | |
686 | module_name (module_name), locus (locus), | |
687 | inner_attrs (std::move (inner_attrs)), items (std::move (items)) | |
688 | {} | |
689 | ||
690 | // Copy constructor with vector clone | |
691 | Module (Module const &other) | |
692 | : VisItem (other), inner_attrs (other.inner_attrs) | |
693 | { | |
694 | items.reserve (other.items.size ()); | |
695 | for (const auto &e : other.items) | |
696 | items.push_back (e->clone_item ()); | |
697 | } | |
698 | ||
699 | // Overloaded assignment operator with vector clone | |
700 | Module &operator= (Module const &other) | |
701 | { | |
702 | VisItem::operator= (other); | |
703 | inner_attrs = other.inner_attrs; | |
704 | ||
705 | items.reserve (other.items.size ()); | |
706 | for (const auto &e : other.items) | |
707 | items.push_back (e->clone_item ()); | |
708 | ||
709 | return *this; | |
710 | } | |
711 | ||
712 | // move constructors | |
713 | Module (Module &&other) = default; | |
714 | Module &operator= (Module &&other) = default; | |
715 | ||
716 | void accept_vis (HIRFullVisitor &vis) override; | |
717 | void accept_vis (HIRStmtVisitor &vis) override; | |
718 | void accept_vis (HIRVisItemVisitor &vis) override; | |
719 | ||
720 | std::vector<std::unique_ptr<Item>> &get_items () { return items; }; | |
721 | ||
722 | /* Override that runs the function recursively on all items contained within | |
723 | * the module. */ | |
724 | void add_crate_name (std::vector<std::string> &names) const override; | |
725 | ||
726 | Location get_locus () const override final { return locus; } | |
727 | ||
728 | ItemKind get_item_kind () const override { return ItemKind::Module; } | |
729 | ||
730 | protected: | |
731 | /* Use covariance to implement clone function as returning this object | |
732 | * rather than base */ | |
733 | Module *clone_item_impl () const override { return new Module (*this); } | |
734 | ||
735 | /* Use covariance to implement clone function as returning this object | |
736 | * rather than base */ | |
737 | /*virtual Module* clone_statement_impl() const override { | |
738 | return new Module(*this); | |
739 | }*/ | |
740 | }; | |
741 | ||
742 | // Rust extern crate declaration HIR node | |
743 | class ExternCrate : public VisItem | |
744 | { | |
745 | // this is either an identifier or "self", with self parsed to string | |
746 | std::string referenced_crate; | |
747 | // bool has_as_clause; | |
748 | // AsClause as_clause; | |
749 | // this is either an identifier or "_", with _ parsed to string | |
750 | std::string as_clause_name; | |
751 | ||
752 | Location locus; | |
753 | ||
754 | /* e.g. | |
755 | "extern crate foo as _" | |
756 | "extern crate foo" | |
757 | "extern crate std as cool_std" */ | |
758 | public: | |
759 | std::string as_string () const override; | |
760 | ||
761 | // Returns whether extern crate declaration has an as clause. | |
762 | bool has_as_clause () const { return !as_clause_name.empty (); } | |
763 | ||
764 | /* Returns whether extern crate declaration references the current crate | |
765 | * (i.e. self). */ | |
766 | bool references_self () const { return referenced_crate == "self"; } | |
767 | ||
768 | // Constructor | |
769 | ExternCrate (Analysis::NodeMapping mappings, std::string referenced_crate, | |
770 | Visibility visibility, AST::AttrVec outer_attrs, Location locus, | |
771 | std::string as_clause_name = std::string ()) | |
772 | : VisItem (std::move (mappings), std::move (visibility), | |
773 | std::move (outer_attrs)), | |
774 | referenced_crate (std::move (referenced_crate)), | |
775 | as_clause_name (std::move (as_clause_name)), locus (locus) | |
776 | {} | |
777 | ||
778 | Location get_locus () const override final { return locus; } | |
779 | ||
780 | ItemKind get_item_kind () const override { return ItemKind::ExternCrate; } | |
781 | ||
782 | void accept_vis (HIRFullVisitor &vis) override; | |
783 | void accept_vis (HIRStmtVisitor &vis) override; | |
784 | void accept_vis (HIRVisItemVisitor &vis) override; | |
785 | ||
786 | // Override that adds extern crate name in decl to passed list of names. | |
787 | void add_crate_name (std::vector<std::string> &names) const override | |
788 | { | |
789 | names.push_back (referenced_crate); | |
790 | } | |
791 | ||
792 | protected: | |
793 | /* Use covariance to implement clone function as returning this object | |
794 | * rather than base */ | |
795 | ExternCrate *clone_item_impl () const override | |
796 | { | |
797 | return new ExternCrate (*this); | |
798 | } | |
799 | ||
800 | /* Use covariance to implement clone function as returning this object | |
801 | * rather than base */ | |
802 | /*virtual ExternCrate* clone_statement_impl() const override { | |
803 | return new ExternCrate(*this); | |
804 | }*/ | |
805 | }; | |
806 | ||
807 | // The path-ish thing referred to in a use declaration - abstract base class | |
808 | class UseTree | |
809 | { | |
810 | Location locus; | |
811 | ||
812 | public: | |
813 | virtual ~UseTree () {} | |
814 | ||
815 | // Unique pointer custom clone function | |
816 | std::unique_ptr<UseTree> clone_use_tree () const | |
817 | { | |
818 | return std::unique_ptr<UseTree> (clone_use_tree_impl ()); | |
819 | } | |
820 | ||
821 | virtual std::string as_string () const = 0; | |
822 | ||
823 | Location get_locus () const { return locus; } | |
824 | ||
825 | virtual void accept_vis (HIRFullVisitor &vis) = 0; | |
826 | ||
827 | protected: | |
828 | // Clone function implementation as pure virtual method | |
829 | virtual UseTree *clone_use_tree_impl () const = 0; | |
830 | ||
831 | UseTree (Location locus) : locus (locus) {} | |
832 | }; | |
833 | ||
834 | // Use tree with a glob (wildcard) operator | |
835 | class UseTreeGlob : public UseTree | |
836 | { | |
837 | public: | |
838 | enum PathType | |
839 | { | |
840 | NO_PATH, | |
841 | GLOBAL, | |
842 | PATH_PREFIXED | |
843 | }; | |
844 | ||
845 | private: | |
846 | PathType glob_type; | |
847 | AST::SimplePath path; | |
848 | ||
849 | public: | |
850 | UseTreeGlob (PathType glob_type, AST::SimplePath path, Location locus) | |
851 | : UseTree (locus), glob_type (glob_type), path (std::move (path)) | |
852 | { | |
853 | if (this->glob_type != PATH_PREFIXED) | |
854 | { | |
855 | // compiler implementation error if there is a path with a | |
856 | // non-path-prefixed use tree glob | |
857 | gcc_assert (!has_path ()); | |
858 | } | |
859 | // TODO: do path-prefixed paths also have to have a path? If so, have an | |
860 | // assert for that too. | |
861 | } | |
862 | ||
863 | /* Returns whether has path. Should be made redundant by PathType | |
864 | * PATH_PREFIXED. */ | |
865 | bool has_path () const { return !path.is_empty (); } | |
866 | ||
867 | std::string as_string () const override; | |
868 | ||
869 | void accept_vis (HIRFullVisitor &vis) override; | |
870 | ||
871 | /* TODO: find way to ensure only PATH_PREFIXED glob_type has path - factory | |
872 | * methods? */ | |
873 | protected: | |
874 | /* Use covariance to implement clone function as returning this object | |
875 | * rather than base */ | |
876 | UseTreeGlob *clone_use_tree_impl () const override | |
877 | { | |
878 | return new UseTreeGlob (*this); | |
879 | } | |
880 | }; | |
881 | ||
882 | // Use tree with a list of paths with a common prefix | |
883 | class UseTreeList : public UseTree | |
884 | { | |
885 | public: | |
886 | enum PathType | |
887 | { | |
888 | NO_PATH, | |
889 | GLOBAL, | |
890 | PATH_PREFIXED | |
891 | }; | |
892 | ||
893 | private: | |
894 | PathType path_type; | |
895 | AST::SimplePath path; | |
896 | ||
897 | std::vector<std::unique_ptr<UseTree>> trees; | |
898 | ||
899 | public: | |
900 | UseTreeList (PathType path_type, AST::SimplePath path, | |
901 | std::vector<std::unique_ptr<UseTree>> trees, Location locus) | |
902 | : UseTree (locus), path_type (path_type), path (std::move (path)), | |
903 | trees (std::move (trees)) | |
904 | { | |
905 | if (this->path_type != PATH_PREFIXED) | |
906 | { | |
907 | // compiler implementation error if there is a path with a | |
908 | // non-path-prefixed use tree glob | |
909 | gcc_assert (!has_path ()); | |
910 | } | |
911 | // TODO: do path-prefixed paths also have to have a path? If so, have an | |
912 | // assert for that too. | |
913 | } | |
914 | ||
915 | // copy constructor with vector clone | |
916 | UseTreeList (UseTreeList const &other) | |
917 | : UseTree (other), path_type (other.path_type), path (other.path) | |
918 | { | |
919 | trees.reserve (other.trees.size ()); | |
920 | for (const auto &e : other.trees) | |
921 | trees.push_back (e->clone_use_tree ()); | |
922 | } | |
923 | ||
924 | // overloaded assignment operator with vector clone | |
925 | UseTreeList &operator= (UseTreeList const &other) | |
926 | { | |
927 | UseTree::operator= (other); | |
928 | path_type = other.path_type; | |
929 | path = other.path; | |
930 | ||
931 | trees.reserve (other.trees.size ()); | |
932 | for (const auto &e : other.trees) | |
933 | trees.push_back (e->clone_use_tree ()); | |
934 | ||
935 | return *this; | |
936 | } | |
937 | ||
938 | // move constructors | |
939 | UseTreeList (UseTreeList &&other) = default; | |
940 | UseTreeList &operator= (UseTreeList &&other) = default; | |
941 | ||
942 | // Returns whether has path. Should be made redundant by path_type. | |
943 | bool has_path () const { return !path.is_empty (); } | |
944 | ||
945 | // Returns whether has inner tree elements. | |
946 | bool has_trees () const { return !trees.empty (); } | |
947 | ||
948 | std::string as_string () const override; | |
949 | ||
950 | void accept_vis (HIRFullVisitor &vis) override; | |
951 | ||
952 | // TODO: find way to ensure only PATH_PREFIXED path_type has path - factory | |
953 | // methods? | |
954 | protected: | |
955 | /* Use covariance to implement clone function as returning this object | |
956 | * rather than base */ | |
957 | UseTreeList *clone_use_tree_impl () const override | |
958 | { | |
959 | return new UseTreeList (*this); | |
960 | } | |
961 | }; | |
962 | ||
963 | // Use tree where it rebinds the module name as something else | |
964 | class UseTreeRebind : public UseTree | |
965 | { | |
966 | public: | |
967 | enum NewBindType | |
968 | { | |
969 | NONE, | |
970 | IDENTIFIER, | |
971 | WILDCARD | |
972 | }; | |
973 | ||
974 | private: | |
975 | AST::SimplePath path; | |
976 | ||
977 | NewBindType bind_type; | |
978 | Identifier identifier; // only if NewBindType is IDENTIFIER | |
979 | ||
980 | public: | |
981 | UseTreeRebind (NewBindType bind_type, AST::SimplePath path, Location locus, | |
982 | Identifier identifier = std::string ()) | |
983 | : UseTree (locus), path (std::move (path)), bind_type (bind_type), | |
984 | identifier (std::move (identifier)) | |
985 | {} | |
986 | ||
987 | // Returns whether has path (this should always be true). | |
988 | bool has_path () const { return !path.is_empty (); } | |
989 | ||
990 | // Returns whether has identifier (or, rather, is allowed to). | |
991 | bool has_identifier () const { return bind_type == IDENTIFIER; } | |
992 | ||
993 | std::string as_string () const override; | |
994 | ||
995 | void accept_vis (HIRFullVisitor &vis) override; | |
996 | ||
997 | // TODO: find way to ensure only PATH_PREFIXED path_type has path - factory | |
998 | // methods? | |
999 | protected: | |
1000 | /* Use covariance to implement clone function as returning this object | |
1001 | * rather than base */ | |
1002 | virtual UseTreeRebind *clone_use_tree_impl () const override | |
1003 | { | |
1004 | return new UseTreeRebind (*this); | |
1005 | } | |
1006 | }; | |
1007 | ||
1008 | // Rust use declaration (i.e. for modules) HIR node | |
1009 | class UseDeclaration : public VisItem | |
1010 | { | |
1011 | std::unique_ptr<UseTree> use_tree; | |
1012 | Location locus; | |
1013 | ||
1014 | public: | |
1015 | std::string as_string () const override; | |
1016 | ||
1017 | UseDeclaration (Analysis::NodeMapping mappings, | |
1018 | std::unique_ptr<UseTree> use_tree, Visibility visibility, | |
1019 | AST::AttrVec outer_attrs, Location locus) | |
1020 | : VisItem (std::move (mappings), std::move (visibility), | |
1021 | std::move (outer_attrs)), | |
1022 | use_tree (std::move (use_tree)), locus (locus) | |
1023 | {} | |
1024 | ||
1025 | // Copy constructor with clone | |
1026 | UseDeclaration (UseDeclaration const &other) | |
1027 | : VisItem (other), use_tree (other.use_tree->clone_use_tree ()), | |
1028 | locus (other.locus) | |
1029 | {} | |
1030 | ||
1031 | // Overloaded assignment operator to clone | |
1032 | UseDeclaration &operator= (UseDeclaration const &other) | |
1033 | { | |
1034 | VisItem::operator= (other); | |
1035 | use_tree = other.use_tree->clone_use_tree (); | |
1036 | // visibility = other.visibility->clone_visibility(); | |
1037 | // outer_attrs = other.outer_attrs; | |
1038 | locus = other.locus; | |
1039 | ||
1040 | return *this; | |
1041 | } | |
1042 | ||
1043 | // move constructors | |
1044 | UseDeclaration (UseDeclaration &&other) = default; | |
1045 | UseDeclaration &operator= (UseDeclaration &&other) = default; | |
1046 | ||
1047 | Location get_locus () const override final { return locus; } | |
1048 | ItemKind get_item_kind () const override { return ItemKind::UseDeclaration; } | |
1049 | ||
1050 | void accept_vis (HIRFullVisitor &vis) override; | |
1051 | void accept_vis (HIRStmtVisitor &vis) override; | |
1052 | void accept_vis (HIRVisItemVisitor &vis) override; | |
1053 | ||
1054 | protected: | |
1055 | /* Use covariance to implement clone function as returning this object | |
1056 | * rather than base */ | |
1057 | UseDeclaration *clone_item_impl () const override | |
1058 | { | |
1059 | return new UseDeclaration (*this); | |
1060 | } | |
1061 | ||
1062 | /* Use covariance to implement clone function as returning this object | |
1063 | * rather than base */ | |
1064 | /*virtual UseDeclaration* clone_statement_impl() const override { | |
1065 | return new UseDeclaration(*this); | |
1066 | }*/ | |
1067 | }; | |
1068 | ||
1069 | class LetStmt; | |
1070 | ||
1071 | // Rust function declaration HIR node | |
1072 | class Function : public VisItem, public ImplItem | |
1073 | { | |
1074 | FunctionQualifiers qualifiers; | |
1075 | Identifier function_name; | |
1076 | std::vector<std::unique_ptr<GenericParam>> generic_params; | |
1077 | std::vector<FunctionParam> function_params; | |
1078 | std::unique_ptr<Type> return_type; | |
1079 | WhereClause where_clause; | |
1080 | std::unique_ptr<BlockExpr> function_body; | |
1081 | SelfParam self; | |
1082 | Location locus; | |
1083 | ||
1084 | public: | |
1085 | std::string as_string () const override; | |
1086 | ||
1087 | // Returns whether function has generic parameters. | |
1088 | bool has_generics () const { return !generic_params.empty (); } | |
1089 | ||
1090 | // Returns whether function has regular parameters. | |
1091 | bool has_function_params () const { return !function_params.empty (); } | |
1092 | ||
1093 | // Returns whether function has return type - if not, it is void. | |
1094 | bool has_function_return_type () const { return return_type != nullptr; } | |
1095 | ||
1096 | // Returns whether function has a where clause. | |
1097 | bool has_where_clause () const { return !where_clause.is_empty (); } | |
1098 | ||
1099 | ImplItemType get_impl_item_type () const override final | |
1100 | { | |
1101 | return ImplItem::ImplItemType::FUNCTION; | |
1102 | } | |
1103 | ||
1104 | ItemKind get_item_kind () const override { return ItemKind::Function; } | |
1105 | ||
1106 | // Mega-constructor with all possible fields | |
1107 | Function (Analysis::NodeMapping mappings, Identifier function_name, | |
1108 | FunctionQualifiers qualifiers, | |
1109 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
1110 | std::vector<FunctionParam> function_params, | |
1111 | std::unique_ptr<Type> return_type, WhereClause where_clause, | |
1112 | std::unique_ptr<BlockExpr> function_body, Visibility vis, | |
1113 | AST::AttrVec outer_attrs, SelfParam self, Location locus) | |
1114 | : VisItem (std::move (mappings), std::move (vis), std::move (outer_attrs)), | |
1115 | qualifiers (std::move (qualifiers)), | |
1116 | function_name (std::move (function_name)), | |
1117 | generic_params (std::move (generic_params)), | |
1118 | function_params (std::move (function_params)), | |
1119 | return_type (std::move (return_type)), | |
1120 | where_clause (std::move (where_clause)), | |
1121 | function_body (std::move (function_body)), self (std::move (self)), | |
1122 | locus (locus) | |
1123 | {} | |
1124 | ||
1125 | // Copy constructor with clone | |
1126 | Function (Function const &other) | |
1127 | : VisItem (other), qualifiers (other.qualifiers), | |
1128 | function_name (other.function_name), | |
1129 | function_params (other.function_params), | |
1130 | where_clause (other.where_clause), | |
1131 | function_body (other.function_body->clone_block_expr ()), | |
1132 | self (other.self), locus (other.locus) | |
1133 | { | |
1134 | // guard to prevent null dereference (always required) | |
1135 | if (other.return_type != nullptr) | |
1136 | return_type = other.return_type->clone_type (); | |
1137 | else | |
1138 | return_type = nullptr; | |
1139 | ||
1140 | generic_params.reserve (other.generic_params.size ()); | |
1141 | for (const auto &e : other.generic_params) | |
1142 | generic_params.push_back (e->clone_generic_param ()); | |
1143 | } | |
1144 | ||
1145 | // Overloaded assignment operator to clone | |
1146 | Function &operator= (Function const &other) | |
1147 | { | |
1148 | VisItem::operator= (other); | |
1149 | function_name = other.function_name; | |
1150 | qualifiers = other.qualifiers; | |
1151 | function_params = other.function_params; | |
1152 | ||
1153 | // guard to prevent null dereference (always required) | |
1154 | if (other.return_type != nullptr) | |
1155 | return_type = other.return_type->clone_type (); | |
1156 | else | |
1157 | return_type = nullptr; | |
1158 | ||
1159 | where_clause = other.where_clause; | |
1160 | function_body = other.function_body->clone_block_expr (); | |
1161 | locus = other.locus; | |
1162 | self = other.self; | |
1163 | ||
1164 | generic_params.reserve (other.generic_params.size ()); | |
1165 | for (const auto &e : other.generic_params) | |
1166 | generic_params.push_back (e->clone_generic_param ()); | |
1167 | ||
1168 | return *this; | |
1169 | } | |
1170 | ||
1171 | // move constructors | |
1172 | Function (Function &&other) = default; | |
1173 | Function &operator= (Function &&other) = default; | |
1174 | ||
1175 | Location get_locus () const override final { return locus; } | |
1176 | ||
1177 | void accept_vis (HIRFullVisitor &vis) override; | |
1178 | void accept_vis (HIRImplVisitor &vis) override; | |
1179 | void accept_vis (HIRStmtVisitor &vis) override; | |
1180 | void accept_vis (HIRVisItemVisitor &vis) override; | |
1181 | ||
1182 | Analysis::NodeMapping get_impl_mappings () const override | |
1183 | { | |
1184 | return get_mappings (); | |
1185 | }; | |
1186 | ||
1187 | std::vector<FunctionParam> &get_function_params () { return function_params; } | |
1188 | const std::vector<FunctionParam> &get_function_params () const | |
1189 | { | |
1190 | return function_params; | |
1191 | } | |
1192 | ||
1193 | std::vector<std::unique_ptr<GenericParam>> &get_generic_params () | |
1194 | { | |
1195 | return generic_params; | |
1196 | } | |
1197 | const std::vector<std::unique_ptr<GenericParam>> &get_generic_params () const | |
1198 | { | |
1199 | return generic_params; | |
1200 | } | |
1201 | ||
1202 | // TODO: is this better? Or is a "vis_block" better? | |
1203 | std::unique_ptr<BlockExpr> &get_definition () | |
1204 | { | |
1205 | rust_assert (function_body != nullptr); | |
1206 | return function_body; | |
1207 | } | |
1208 | ||
1209 | const FunctionQualifiers &get_qualifiers () const { return qualifiers; } | |
1210 | ||
1211 | Identifier get_function_name () const { return function_name; } | |
1212 | ||
1213 | // TODO: is this better? Or is a "vis_block" better? | |
1214 | WhereClause &get_where_clause () { return where_clause; } | |
1215 | ||
1216 | bool has_return_type () const { return return_type != nullptr; } | |
1217 | ||
1218 | // TODO: is this better? Or is a "vis_block" better? | |
1219 | std::unique_ptr<Type> &get_return_type () | |
1220 | { | |
1221 | rust_assert (has_return_type ()); | |
1222 | return return_type; | |
1223 | } | |
1224 | ||
1225 | bool is_method () const { return !self.is_error (); } | |
1226 | ||
1227 | SelfParam &get_self_param () { return self; } | |
1228 | ||
e90d06c5 PH |
1229 | std::string get_impl_item_name () const override final |
1230 | { | |
1231 | return get_function_name (); | |
1232 | } | |
1233 | ||
8ad1d56d PH |
1234 | protected: |
1235 | /* Use covariance to implement clone function as returning this object | |
1236 | * rather than base */ | |
1237 | Function *clone_item_impl () const override { return new Function (*this); } | |
1238 | ||
1239 | /* Use covariance to implement clone function as returning this object | |
1240 | * rather than base */ | |
1241 | Function *clone_inherent_impl_item_impl () const override | |
1242 | { | |
1243 | return new Function (*this); | |
1244 | } | |
1245 | }; | |
1246 | ||
1247 | // Rust type alias (i.e. typedef) HIR node | |
1248 | class TypeAlias : public VisItem, public ImplItem | |
1249 | { | |
1250 | Identifier new_type_name; | |
1251 | ||
1252 | // bool has_generics; | |
1253 | // Generics generic_params; | |
1254 | std::vector<std::unique_ptr<GenericParam>> generic_params; // inlined | |
1255 | ||
1256 | // bool has_where_clause; | |
1257 | WhereClause where_clause; | |
1258 | ||
1259 | std::unique_ptr<Type> existing_type; | |
1260 | ||
1261 | Location locus; | |
1262 | ||
1263 | public: | |
1264 | std::string as_string () const override; | |
1265 | ||
1266 | // Returns whether type alias has generic parameters. | |
1267 | bool has_generics () const { return !generic_params.empty (); } | |
1268 | ||
1269 | // Returns whether type alias has a where clause. | |
1270 | bool has_where_clause () const { return !where_clause.is_empty (); } | |
1271 | ||
1272 | ImplItemType get_impl_item_type () const override final | |
1273 | { | |
1274 | return ImplItem::ImplItemType::TYPE_ALIAS; | |
1275 | } | |
1276 | ||
1277 | // Mega-constructor with all possible fields | |
1278 | TypeAlias (Analysis::NodeMapping mappings, Identifier new_type_name, | |
1279 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
1280 | WhereClause where_clause, std::unique_ptr<Type> existing_type, | |
1281 | Visibility vis, AST::AttrVec outer_attrs, Location locus) | |
1282 | : VisItem (std::move (mappings), std::move (vis), std::move (outer_attrs)), | |
1283 | new_type_name (std::move (new_type_name)), | |
1284 | generic_params (std::move (generic_params)), | |
1285 | where_clause (std::move (where_clause)), | |
1286 | existing_type (std::move (existing_type)), locus (locus) | |
1287 | {} | |
1288 | ||
1289 | // Copy constructor | |
1290 | TypeAlias (TypeAlias const &other) | |
1291 | : VisItem (other), new_type_name (other.new_type_name), | |
1292 | where_clause (other.where_clause), | |
1293 | existing_type (other.existing_type->clone_type ()), locus (other.locus) | |
1294 | { | |
1295 | generic_params.reserve (other.generic_params.size ()); | |
1296 | for (const auto &e : other.generic_params) | |
1297 | generic_params.push_back (e->clone_generic_param ()); | |
1298 | } | |
1299 | ||
1300 | // Overloaded assignment operator to clone | |
1301 | TypeAlias &operator= (TypeAlias const &other) | |
1302 | { | |
1303 | VisItem::operator= (other); | |
1304 | new_type_name = other.new_type_name; | |
1305 | where_clause = other.where_clause; | |
1306 | existing_type = other.existing_type->clone_type (); | |
1307 | locus = other.locus; | |
1308 | ||
1309 | generic_params.reserve (other.generic_params.size ()); | |
1310 | for (const auto &e : other.generic_params) | |
1311 | generic_params.push_back (e->clone_generic_param ()); | |
1312 | ||
1313 | return *this; | |
1314 | } | |
1315 | ||
1316 | // move constructors | |
1317 | TypeAlias (TypeAlias &&other) = default; | |
1318 | TypeAlias &operator= (TypeAlias &&other) = default; | |
1319 | ||
1320 | Location get_locus () const override final { return locus; } | |
1321 | ||
1322 | void accept_vis (HIRFullVisitor &vis) override; | |
1323 | void accept_vis (HIRImplVisitor &vis) override; | |
1324 | void accept_vis (HIRStmtVisitor &vis) override; | |
1325 | void accept_vis (HIRVisItemVisitor &vis) override; | |
1326 | ||
1327 | std::vector<std::unique_ptr<GenericParam>> &get_generic_params () | |
1328 | { | |
1329 | return generic_params; | |
1330 | } | |
1331 | const std::vector<std::unique_ptr<GenericParam>> &get_generic_params () const | |
1332 | { | |
1333 | return generic_params; | |
1334 | } | |
1335 | ||
1336 | WhereClause &get_where_clause () { return where_clause; } | |
1337 | ||
1338 | std::unique_ptr<Type> &get_type_aliased () | |
1339 | { | |
1340 | rust_assert (existing_type != nullptr); | |
1341 | return existing_type; | |
1342 | } | |
1343 | ||
1344 | Identifier get_new_type_name () const { return new_type_name; } | |
1345 | ||
1346 | ItemKind get_item_kind () const override { return ItemKind::TypeAlias; } | |
1347 | ||
1348 | Analysis::NodeMapping get_impl_mappings () const override | |
1349 | { | |
1350 | return get_mappings (); | |
1351 | }; | |
1352 | ||
e90d06c5 PH |
1353 | std::string get_impl_item_name () const override final |
1354 | { | |
1355 | return get_new_type_name (); | |
1356 | } | |
1357 | ||
8ad1d56d PH |
1358 | protected: |
1359 | /* Use covariance to implement clone function as returning this object | |
1360 | * rather than base */ | |
1361 | TypeAlias *clone_item_impl () const override { return new TypeAlias (*this); } | |
1362 | ||
1363 | /* Use covariance to implement clone function as returning this object | |
1364 | * rather than base */ | |
1365 | TypeAlias *clone_inherent_impl_item_impl () const override | |
1366 | { | |
1367 | return new TypeAlias (*this); | |
1368 | } | |
1369 | }; | |
1370 | ||
1371 | // Rust base struct declaration HIR node - abstract base class | |
1372 | class Struct : public VisItem | |
1373 | { | |
1374 | protected: | |
1375 | // protected to enable access by derived classes - allows better as_string | |
1376 | Identifier struct_name; | |
1377 | ||
1378 | // bool has_generics; | |
1379 | // Generics generic_params; | |
1380 | std::vector<std::unique_ptr<GenericParam>> generic_params; // inlined | |
1381 | ||
1382 | // bool has_where_clause; | |
1383 | WhereClause where_clause; | |
1384 | ||
1385 | Location locus; | |
1386 | ||
1387 | public: | |
1388 | Identifier get_identifier () const { return struct_name; } | |
1389 | ||
1390 | // Returns whether struct has generic parameters. | |
1391 | bool has_generics () const { return !generic_params.empty (); } | |
1392 | ||
1393 | // Returns whether struct has a where clause. | |
1394 | bool has_where_clause () const { return !where_clause.is_empty (); } | |
1395 | ||
1396 | Location get_locus () const override final { return locus; } | |
1397 | ItemKind get_item_kind () const override { return ItemKind::Struct; } | |
1398 | ||
1399 | std::vector<std::unique_ptr<GenericParam>> &get_generic_params () | |
1400 | { | |
1401 | return generic_params; | |
1402 | } | |
1403 | ||
1404 | WhereClause &get_where_clause () { return where_clause; } | |
1405 | ||
1406 | protected: | |
1407 | Struct (Analysis::NodeMapping mappings, Identifier struct_name, | |
1408 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
1409 | WhereClause where_clause, Visibility vis, Location locus, | |
1410 | AST::AttrVec outer_attrs = AST::AttrVec ()) | |
1411 | : VisItem (std::move (mappings), std::move (vis), std::move (outer_attrs)), | |
1412 | struct_name (std::move (struct_name)), | |
1413 | generic_params (std::move (generic_params)), | |
1414 | where_clause (std::move (where_clause)), locus (locus) | |
1415 | {} | |
1416 | ||
1417 | // Copy constructor with vector clone | |
1418 | Struct (Struct const &other) | |
1419 | : VisItem (other), struct_name (other.struct_name), | |
1420 | where_clause (other.where_clause), locus (other.locus) | |
1421 | { | |
1422 | generic_params.reserve (other.generic_params.size ()); | |
1423 | for (const auto &e : other.generic_params) | |
1424 | generic_params.push_back (e->clone_generic_param ()); | |
1425 | } | |
1426 | ||
1427 | // Overloaded assignment operator with vector clone | |
1428 | Struct &operator= (Struct const &other) | |
1429 | { | |
1430 | VisItem::operator= (other); | |
1431 | struct_name = other.struct_name; | |
1432 | where_clause = other.where_clause; | |
1433 | locus = other.locus; | |
1434 | ||
1435 | generic_params.reserve (other.generic_params.size ()); | |
1436 | for (const auto &e : other.generic_params) | |
1437 | generic_params.push_back (e->clone_generic_param ()); | |
1438 | ||
1439 | return *this; | |
1440 | } | |
1441 | ||
1442 | // move constructors | |
1443 | Struct (Struct &&other) = default; | |
1444 | Struct &operator= (Struct &&other) = default; | |
1445 | }; | |
1446 | ||
1447 | // A single field in a struct | |
1448 | struct StructField | |
1449 | { | |
1450 | public: | |
1451 | // bool has_outer_attributes; | |
1452 | AST::AttrVec outer_attrs; | |
1453 | ||
1454 | // bool has_visibility; | |
1455 | Visibility visibility; | |
1456 | ||
1457 | Identifier field_name; | |
1458 | std::unique_ptr<Type> field_type; | |
1459 | ||
1460 | Analysis::NodeMapping mappings; | |
1461 | ||
1462 | Location locus; | |
1463 | ||
1464 | // Returns whether struct field has any outer attributes. | |
1465 | bool has_outer_attributes () const { return !outer_attrs.empty (); } | |
1466 | ||
1467 | // Returns whether struct field has a non-private (non-default) visibility. | |
1468 | bool has_visibility () const { return !visibility.is_error (); } | |
1469 | ||
1470 | StructField (Analysis::NodeMapping mappings, Identifier field_name, | |
1471 | std::unique_ptr<Type> field_type, Visibility vis, Location locus, | |
1472 | AST::AttrVec outer_attrs = AST::AttrVec ()) | |
1473 | : outer_attrs (std::move (outer_attrs)), visibility (std::move (vis)), | |
1474 | field_name (std::move (field_name)), field_type (std::move (field_type)), | |
1475 | mappings (mappings), locus (locus) | |
1476 | {} | |
1477 | ||
1478 | // Copy constructor | |
1479 | StructField (StructField const &other) | |
1480 | : outer_attrs (other.outer_attrs), visibility (other.visibility), | |
1481 | field_name (other.field_name), | |
1482 | field_type (other.field_type->clone_type ()), mappings (other.mappings) | |
1483 | {} | |
1484 | ||
1485 | ~StructField () = default; | |
1486 | ||
1487 | // Overloaded assignment operator to clone | |
1488 | StructField &operator= (StructField const &other) | |
1489 | { | |
1490 | field_name = other.field_name; | |
1491 | field_type = other.field_type->clone_type (); | |
1492 | visibility = other.visibility; | |
1493 | outer_attrs = other.outer_attrs; | |
1494 | mappings = other.mappings; | |
1495 | ||
1496 | return *this; | |
1497 | } | |
1498 | ||
1499 | // move constructors | |
1500 | StructField (StructField &&other) = default; | |
1501 | StructField &operator= (StructField &&other) = default; | |
1502 | ||
1503 | std::string as_string () const; | |
1504 | ||
1505 | Identifier get_field_name () const { return field_name; } | |
1506 | ||
1507 | std::unique_ptr<Type> &get_field_type () | |
1508 | { | |
1509 | rust_assert (field_type != nullptr); | |
1510 | return field_type; | |
1511 | } | |
1512 | ||
1513 | Analysis::NodeMapping get_mappings () const { return mappings; } | |
1514 | ||
1515 | Location get_locus () { return locus; } | |
1516 | ||
1517 | Visibility &get_visibility () { return visibility; } | |
1518 | }; | |
1519 | ||
1520 | // Rust struct declaration with true struct type HIR node | |
1521 | class StructStruct : public Struct | |
1522 | { | |
1523 | public: | |
1524 | std::vector<StructField> fields; | |
1525 | bool is_unit; | |
1526 | ||
1527 | std::string as_string () const override; | |
1528 | ||
1529 | // Mega-constructor with all possible fields | |
1530 | StructStruct (Analysis::NodeMapping mappings, std::vector<StructField> fields, | |
1531 | Identifier struct_name, | |
1532 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
1533 | WhereClause where_clause, bool is_unit, Visibility vis, | |
1534 | AST::AttrVec outer_attrs, Location locus) | |
1535 | : Struct (std::move (mappings), std::move (struct_name), | |
1536 | std::move (generic_params), std::move (where_clause), | |
1537 | std::move (vis), locus, std::move (outer_attrs)), | |
1538 | fields (std::move (fields)), is_unit (is_unit) | |
1539 | {} | |
1540 | ||
1541 | // Unit struct constructor | |
1542 | StructStruct (Analysis::NodeMapping mappings, Identifier struct_name, | |
1543 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
1544 | WhereClause where_clause, Visibility vis, | |
1545 | AST::AttrVec outer_attrs, Location locus) | |
1546 | : Struct (std::move (mappings), std::move (struct_name), | |
1547 | std::move (generic_params), std::move (where_clause), | |
1548 | std::move (vis), locus, std::move (outer_attrs)), | |
1549 | is_unit (true) | |
1550 | {} | |
1551 | // TODO: can a unit struct have generic fields? assuming yes for now. | |
1552 | ||
1553 | /* Returns whether the struct is a unit struct - struct defined without | |
1554 | * fields. This is important because it also means an implicit constant of its | |
1555 | * type is defined. */ | |
1556 | bool is_unit_struct () const { return is_unit; } | |
1557 | ||
1558 | void accept_vis (HIRFullVisitor &vis) override; | |
1559 | void accept_vis (HIRStmtVisitor &vis) override; | |
1560 | void accept_vis (HIRVisItemVisitor &vis) override; | |
1561 | ||
1562 | std::vector<StructField> &get_fields () { return fields; } | |
1563 | ||
1564 | protected: | |
1565 | /* Use covariance to implement clone function as returning this object | |
1566 | * rather than base */ | |
1567 | StructStruct *clone_item_impl () const override | |
1568 | { | |
1569 | return new StructStruct (*this); | |
1570 | } | |
1571 | ||
1572 | /* Use covariance to implement clone function as returning this object | |
1573 | * rather than base */ | |
1574 | /*virtual StructStruct* clone_statement_impl() const override { | |
1575 | return new StructStruct(*this); | |
1576 | }*/ | |
1577 | }; | |
1578 | ||
1579 | // A single field in a tuple | |
1580 | struct TupleField | |
1581 | { | |
1582 | private: | |
1583 | // bool has_outer_attributes; | |
1584 | AST::AttrVec outer_attrs; | |
1585 | ||
1586 | // bool has_visibility; | |
1587 | Visibility visibility; | |
1588 | ||
1589 | std::unique_ptr<Type> field_type; | |
1590 | ||
1591 | Location locus; | |
1592 | ||
1593 | Analysis::NodeMapping mappings; | |
1594 | ||
1595 | public: | |
1596 | // Returns whether tuple field has outer attributes. | |
1597 | bool has_outer_attributes () const { return !outer_attrs.empty (); } | |
1598 | ||
1599 | /* Returns whether tuple field has a non-default visibility (i.e. a public | |
1600 | * one) */ | |
1601 | bool has_visibility () const { return !visibility.is_error (); } | |
1602 | ||
1603 | // Complete constructor | |
1604 | TupleField (Analysis::NodeMapping mapping, std::unique_ptr<Type> field_type, | |
1605 | Visibility vis, Location locus, | |
1606 | AST::AttrVec outer_attrs = AST::AttrVec ()) | |
1607 | : outer_attrs (std::move (outer_attrs)), visibility (std::move (vis)), | |
1608 | field_type (std::move (field_type)), locus (locus), mappings (mapping) | |
1609 | {} | |
1610 | ||
1611 | // Copy constructor with clone | |
1612 | TupleField (TupleField const &other) | |
1613 | : outer_attrs (other.outer_attrs), visibility (other.visibility), | |
1614 | field_type (other.field_type->clone_type ()), locus (other.locus), | |
1615 | mappings (other.mappings) | |
1616 | {} | |
1617 | ||
1618 | ~TupleField () = default; | |
1619 | ||
1620 | // Overloaded assignment operator to clone | |
1621 | TupleField &operator= (TupleField const &other) | |
1622 | { | |
1623 | field_type = other.field_type->clone_type (); | |
1624 | visibility = other.visibility; | |
1625 | outer_attrs = other.outer_attrs; | |
1626 | locus = other.locus; | |
1627 | mappings = other.mappings; | |
1628 | ||
1629 | return *this; | |
1630 | } | |
1631 | ||
1632 | // move constructors | |
1633 | TupleField (TupleField &&other) = default; | |
1634 | TupleField &operator= (TupleField &&other) = default; | |
1635 | ||
1636 | // Returns whether tuple field is in an error state. | |
1637 | bool is_error () const { return field_type == nullptr; } | |
1638 | ||
1639 | std::string as_string () const; | |
1640 | ||
1641 | Analysis::NodeMapping get_mappings () const { return mappings; } | |
1642 | ||
1643 | Location get_locus () const { return locus; } | |
1644 | ||
1645 | std::unique_ptr<HIR::Type> &get_field_type () { return field_type; } | |
1646 | }; | |
1647 | ||
1648 | // Rust tuple declared using struct keyword HIR node | |
1649 | class TupleStruct : public Struct | |
1650 | { | |
1651 | std::vector<TupleField> fields; | |
1652 | ||
1653 | public: | |
1654 | std::string as_string () const override; | |
1655 | ||
1656 | // Mega-constructor with all possible fields | |
1657 | TupleStruct (Analysis::NodeMapping mappings, std::vector<TupleField> fields, | |
1658 | Identifier struct_name, | |
1659 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
1660 | WhereClause where_clause, Visibility vis, | |
1661 | AST::AttrVec outer_attrs, Location locus) | |
1662 | : Struct (std::move (mappings), std::move (struct_name), | |
1663 | std::move (generic_params), std::move (where_clause), | |
1664 | std::move (vis), locus, std::move (outer_attrs)), | |
1665 | fields (std::move (fields)) | |
1666 | {} | |
1667 | ||
1668 | void accept_vis (HIRFullVisitor &vis) override; | |
1669 | void accept_vis (HIRStmtVisitor &vis) override; | |
1670 | void accept_vis (HIRVisItemVisitor &vis) override; | |
1671 | ||
1672 | std::vector<TupleField> &get_fields () { return fields; } | |
1673 | const std::vector<TupleField> &get_fields () const { return fields; } | |
1674 | ||
1675 | protected: | |
1676 | /* Use covariance to implement clone function as returning this object | |
1677 | * rather than base */ | |
1678 | TupleStruct *clone_item_impl () const override | |
1679 | { | |
1680 | return new TupleStruct (*this); | |
1681 | } | |
1682 | ||
1683 | /* Use covariance to implement clone function as returning this object | |
1684 | * rather than base */ | |
1685 | /*virtual TupleStruct* clone_statement_impl() const override { | |
1686 | return new TupleStruct(*this); | |
1687 | }*/ | |
1688 | }; | |
1689 | ||
1690 | /* An item used in an "enum" tagged union - not abstract: base represents a | |
1691 | name-only enum. Syntactically EnumItem's can have a Visibility. But not | |
1692 | Semantically. So check there is no Visibility when lowering and make this | |
1693 | an Item, not an VisItem. */ | |
1694 | class EnumItem : public Item | |
1695 | { | |
1696 | Identifier variant_name; | |
1697 | Location locus; | |
1698 | ||
1699 | public: | |
1700 | virtual ~EnumItem () {} | |
1701 | ||
1702 | enum EnumItemKind | |
1703 | { | |
1704 | Named, | |
1705 | Tuple, | |
1706 | Struct, | |
1707 | Discriminant, | |
1708 | }; | |
1709 | ||
1710 | EnumItem (Analysis::NodeMapping mappings, Identifier variant_name, | |
1711 | AST::AttrVec outer_attrs, Location locus) | |
1712 | : Item (std::move (mappings), std::move (outer_attrs)), | |
1713 | variant_name (std::move (variant_name)), locus (locus) | |
1714 | {} | |
1715 | ||
1716 | // Unique pointer custom clone function | |
1717 | std::unique_ptr<EnumItem> clone_enum_item () const | |
1718 | { | |
1719 | return std::unique_ptr<EnumItem> (clone_item_impl ()); | |
1720 | } | |
1721 | ||
1722 | virtual std::string as_string () const override; | |
1723 | virtual EnumItemKind get_enum_item_kind () const { return Named; }; | |
1724 | ||
1725 | // not pure virtual as not abstract | |
1726 | void accept_vis (HIRFullVisitor &vis) override; | |
1727 | void accept_vis (HIRStmtVisitor &vis) override; | |
1728 | // void accept_vis (HIRVisItemVisitor &vis) override; | |
1729 | ||
1730 | Location get_locus () const override { return locus; } | |
1731 | ||
1732 | Identifier get_identifier () const { return variant_name; } | |
1733 | ||
1734 | ItemKind get_item_kind () const override { return ItemKind::EnumItem; } | |
1735 | ||
1736 | protected: | |
1737 | EnumItem *clone_item_impl () const override { return new EnumItem (*this); } | |
1738 | }; | |
1739 | ||
1740 | // A tuple item used in an "enum" tagged union | |
1741 | class EnumItemTuple : public EnumItem | |
1742 | { | |
1743 | // bool has_tuple_fields; | |
1744 | std::vector<TupleField> tuple_fields; | |
1745 | ||
1746 | public: | |
1747 | // Returns whether tuple enum item has tuple fields. | |
1748 | bool has_tuple_fields () const { return !tuple_fields.empty (); } | |
1749 | ||
1750 | EnumItemKind get_enum_item_kind () const override | |
1751 | { | |
1752 | return EnumItemKind::Tuple; | |
1753 | } | |
1754 | ||
1755 | EnumItemTuple (Analysis::NodeMapping mappings, Identifier variant_name, | |
1756 | std::vector<TupleField> tuple_fields, AST::AttrVec outer_attrs, | |
1757 | Location locus) | |
1758 | : EnumItem (std::move (mappings), std::move (variant_name), | |
1759 | std::move (outer_attrs), locus), | |
1760 | tuple_fields (std::move (tuple_fields)) | |
1761 | {} | |
1762 | ||
1763 | std::string as_string () const override; | |
1764 | ||
1765 | void accept_vis (HIRFullVisitor &vis) override; | |
1766 | void accept_vis (HIRStmtVisitor &vis) override; | |
1767 | ||
1768 | std::vector<TupleField> &get_tuple_fields () { return tuple_fields; } | |
1769 | ||
1770 | protected: | |
1771 | // Clone function implementation as (not pure) virtual method | |
1772 | EnumItemTuple *clone_item_impl () const override | |
1773 | { | |
1774 | return new EnumItemTuple (*this); | |
1775 | } | |
1776 | }; | |
1777 | ||
1778 | // A struct item used in an "enum" tagged union | |
1779 | class EnumItemStruct : public EnumItem | |
1780 | { | |
1781 | // bool has_struct_fields; | |
1782 | std::vector<StructField> struct_fields; | |
1783 | ||
1784 | public: | |
1785 | // Returns whether struct enum item has struct fields. | |
1786 | bool has_struct_fields () const { return !struct_fields.empty (); } | |
1787 | ||
1788 | EnumItemKind get_enum_item_kind () const override | |
1789 | { | |
1790 | return EnumItemKind::Struct; | |
1791 | } | |
1792 | ||
1793 | EnumItemStruct (Analysis::NodeMapping mappings, Identifier variant_name, | |
1794 | std::vector<StructField> struct_fields, | |
1795 | AST::AttrVec outer_attrs, Location locus) | |
1796 | : EnumItem (std::move (mappings), std::move (variant_name), | |
1797 | std::move (outer_attrs), locus), | |
1798 | struct_fields (std::move (struct_fields)) | |
1799 | {} | |
1800 | ||
1801 | std::string as_string () const override; | |
1802 | ||
1803 | void accept_vis (HIRFullVisitor &vis) override; | |
1804 | void accept_vis (HIRStmtVisitor &vis) override; | |
1805 | ||
1806 | std::vector<StructField> &get_struct_fields () { return struct_fields; } | |
1807 | ||
1808 | protected: | |
1809 | // Clone function implementation as (not pure) virtual method | |
1810 | EnumItemStruct *clone_item_impl () const override | |
1811 | { | |
1812 | return new EnumItemStruct (*this); | |
1813 | } | |
1814 | }; | |
1815 | ||
1816 | // A discriminant (numbered enum) item used in an "enum" tagged union | |
1817 | class EnumItemDiscriminant : public EnumItem | |
1818 | { | |
1819 | std::unique_ptr<Expr> expression; | |
1820 | ||
1821 | public: | |
1822 | EnumItemDiscriminant (Analysis::NodeMapping mappings, Identifier variant_name, | |
1823 | std::unique_ptr<Expr> expr, AST::AttrVec outer_attrs, | |
1824 | Location locus) | |
1825 | : EnumItem (std::move (mappings), std::move (variant_name), | |
1826 | std::move (outer_attrs), locus), | |
1827 | expression (std::move (expr)) | |
1828 | {} | |
1829 | ||
1830 | // Copy constructor with clone | |
1831 | EnumItemDiscriminant (EnumItemDiscriminant const &other) | |
1832 | : EnumItem (other), expression (other.expression->clone_expr ()) | |
1833 | {} | |
1834 | ||
1835 | // Overloaded assignment operator to clone | |
1836 | EnumItemDiscriminant &operator= (EnumItemDiscriminant const &other) | |
1837 | { | |
1838 | EnumItem::operator= (other); | |
1839 | expression = other.expression->clone_expr (); | |
1840 | // variant_name = other.variant_name; | |
1841 | // outer_attrs = other.outer_attrs; | |
1842 | ||
1843 | return *this; | |
1844 | } | |
1845 | ||
1846 | // move constructors | |
1847 | EnumItemDiscriminant (EnumItemDiscriminant &&other) = default; | |
1848 | EnumItemDiscriminant &operator= (EnumItemDiscriminant &&other) = default; | |
1849 | ||
1850 | EnumItemKind get_enum_item_kind () const override | |
1851 | { | |
1852 | return EnumItemKind::Discriminant; | |
1853 | } | |
1854 | ||
1855 | std::string as_string () const override; | |
1856 | ||
1857 | void accept_vis (HIRFullVisitor &vis) override; | |
1858 | void accept_vis (HIRStmtVisitor &vis) override; | |
1859 | ||
1860 | std::unique_ptr<Expr> &get_discriminant_expression () { return expression; } | |
1861 | ||
1862 | protected: | |
1863 | // Clone function implementation as (not pure) virtual method | |
1864 | EnumItemDiscriminant *clone_item_impl () const override | |
1865 | { | |
1866 | return new EnumItemDiscriminant (*this); | |
1867 | } | |
1868 | }; | |
1869 | ||
1870 | // HIR node for Rust "enum" - tagged union | |
1871 | class Enum : public VisItem | |
1872 | { | |
1873 | Identifier enum_name; | |
1874 | ||
1875 | // bool has_generics; | |
1876 | // Generics generic_params; | |
1877 | std::vector<std::unique_ptr<GenericParam>> generic_params; // inlined | |
1878 | ||
1879 | // bool has_where_clause; | |
1880 | WhereClause where_clause; | |
1881 | ||
1882 | std::vector<std::unique_ptr<EnumItem>> items; | |
1883 | ||
1884 | Location locus; | |
1885 | ||
1886 | public: | |
1887 | std::string as_string () const override; | |
1888 | ||
1889 | // Returns whether "enum" has generic parameters. | |
1890 | bool has_generics () const { return !generic_params.empty (); } | |
1891 | ||
1892 | // Returns whether "enum" has a where clause. | |
1893 | bool has_where_clause () const { return !where_clause.is_empty (); } | |
1894 | ||
1895 | /* Returns whether enum is a "zero-variant" (no possible variant) enum, | |
1896 | * which cannot be instantiated. */ | |
1897 | bool is_zero_variant () const { return items.empty (); } | |
1898 | ||
1899 | // Mega-constructor | |
1900 | Enum (Analysis::NodeMapping mappings, Identifier enum_name, Visibility vis, | |
1901 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
1902 | WhereClause where_clause, std::vector<std::unique_ptr<EnumItem>> items, | |
1903 | AST::AttrVec outer_attrs, Location locus) | |
1904 | : VisItem (std::move (mappings), std::move (vis), std::move (outer_attrs)), | |
1905 | enum_name (std::move (enum_name)), | |
1906 | generic_params (std::move (generic_params)), | |
1907 | where_clause (std::move (where_clause)), items (std::move (items)), | |
1908 | locus (locus) | |
1909 | {} | |
1910 | ||
1911 | // TODO: constructor with less arguments | |
1912 | ||
1913 | // Copy constructor with vector clone | |
1914 | Enum (Enum const &other) | |
1915 | : VisItem (other), enum_name (other.enum_name), | |
1916 | where_clause (other.where_clause), locus (other.locus) | |
1917 | { | |
1918 | generic_params.reserve (other.generic_params.size ()); | |
1919 | for (const auto &e : other.generic_params) | |
1920 | generic_params.push_back (e->clone_generic_param ()); | |
1921 | ||
1922 | items.reserve (other.items.size ()); | |
1923 | for (const auto &e : other.items) | |
1924 | items.push_back (e->clone_enum_item ()); | |
1925 | } | |
1926 | ||
1927 | // Overloaded assignment operator with vector clone | |
1928 | Enum &operator= (Enum const &other) | |
1929 | { | |
1930 | VisItem::operator= (other); | |
1931 | enum_name = other.enum_name; | |
1932 | where_clause = other.where_clause; | |
1933 | locus = other.locus; | |
1934 | ||
1935 | generic_params.reserve (other.generic_params.size ()); | |
1936 | for (const auto &e : other.generic_params) | |
1937 | generic_params.push_back (e->clone_generic_param ()); | |
1938 | ||
1939 | items.reserve (other.items.size ()); | |
1940 | for (const auto &e : other.items) | |
1941 | items.push_back (e->clone_enum_item ()); | |
1942 | ||
1943 | return *this; | |
1944 | } | |
1945 | ||
1946 | // Move constructors | |
1947 | Enum (Enum &&other) = default; | |
1948 | Enum &operator= (Enum &&other) = default; | |
1949 | ||
1950 | Location get_locus () const override final { return locus; } | |
1951 | ||
1952 | void accept_vis (HIRFullVisitor &vis) override; | |
1953 | void accept_vis (HIRStmtVisitor &vis) override; | |
1954 | void accept_vis (HIRVisItemVisitor &vis) override; | |
1955 | ||
1956 | Identifier get_identifier () const { return enum_name; } | |
1957 | ItemKind get_item_kind () const override { return ItemKind::Enum; } | |
1958 | ||
1959 | std::vector<std::unique_ptr<GenericParam>> &get_generic_params () | |
1960 | { | |
1961 | return generic_params; | |
1962 | } | |
1963 | ||
1964 | const std::vector<std::unique_ptr<EnumItem>> &get_variants () const | |
1965 | { | |
1966 | return items; | |
1967 | } | |
1968 | ||
1969 | protected: | |
1970 | /* Use covariance to implement clone function as returning this object | |
1971 | * rather than base */ | |
1972 | Enum *clone_item_impl () const override { return new Enum (*this); } | |
1973 | ||
1974 | /* Use covariance to implement clone function as returning this object | |
1975 | * rather than base */ | |
1976 | /*virtual Enum* clone_statement_impl() const override { | |
1977 | return new Enum(*this); | |
1978 | }*/ | |
1979 | }; | |
1980 | ||
1981 | // Rust untagged union used for C compat HIR node | |
1982 | class Union : public VisItem | |
1983 | { | |
1984 | Identifier union_name; | |
1985 | ||
1986 | // bool has_generics; | |
1987 | // Generics generic_params; | |
1988 | std::vector<std::unique_ptr<GenericParam>> generic_params; // inlined | |
1989 | ||
1990 | // bool has_where_clause; | |
1991 | WhereClause where_clause; | |
1992 | ||
1993 | std::vector<StructField> variants; | |
1994 | ||
1995 | Location locus; | |
1996 | ||
1997 | public: | |
1998 | std::string as_string () const override; | |
1999 | ||
2000 | // Returns whether union has generic params. | |
2001 | bool has_generics () const { return !generic_params.empty (); } | |
2002 | ||
2003 | // Returns whether union has where clause. | |
2004 | bool has_where_clause () const { return !where_clause.is_empty (); } | |
2005 | ||
2006 | Union (Analysis::NodeMapping mappings, Identifier union_name, Visibility vis, | |
2007 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
2008 | WhereClause where_clause, std::vector<StructField> variants, | |
2009 | AST::AttrVec outer_attrs, Location locus) | |
2010 | : VisItem (std::move (mappings), std::move (vis), std::move (outer_attrs)), | |
2011 | union_name (std::move (union_name)), | |
2012 | generic_params (std::move (generic_params)), | |
2013 | where_clause (std::move (where_clause)), variants (std::move (variants)), | |
2014 | locus (locus) | |
2015 | {} | |
2016 | ||
2017 | // copy constructor with vector clone | |
2018 | Union (Union const &other) | |
2019 | : VisItem (other), union_name (other.union_name), | |
2020 | where_clause (other.where_clause), variants (other.variants), | |
2021 | locus (other.locus) | |
2022 | { | |
2023 | generic_params.reserve (other.generic_params.size ()); | |
2024 | for (const auto &e : other.generic_params) | |
2025 | generic_params.push_back (e->clone_generic_param ()); | |
2026 | } | |
2027 | ||
2028 | // overloaded assignment operator with vector clone | |
2029 | Union &operator= (Union const &other) | |
2030 | { | |
2031 | VisItem::operator= (other); | |
2032 | union_name = other.union_name; | |
2033 | where_clause = other.where_clause; | |
2034 | variants = other.variants; | |
2035 | locus = other.locus; | |
2036 | ||
2037 | generic_params.reserve (other.generic_params.size ()); | |
2038 | for (const auto &e : other.generic_params) | |
2039 | generic_params.push_back (e->clone_generic_param ()); | |
2040 | ||
2041 | return *this; | |
2042 | } | |
2043 | ||
2044 | // move constructors | |
2045 | Union (Union &&other) = default; | |
2046 | Union &operator= (Union &&other) = default; | |
2047 | ||
2048 | std::vector<std::unique_ptr<GenericParam>> &get_generic_params () | |
2049 | { | |
2050 | return generic_params; | |
2051 | } | |
2052 | ||
2053 | Identifier get_identifier () const { return union_name; } | |
2054 | ||
2055 | Location get_locus () const override final { return locus; } | |
2056 | ||
2057 | void accept_vis (HIRFullVisitor &vis) override; | |
2058 | void accept_vis (HIRStmtVisitor &vis) override; | |
2059 | void accept_vis (HIRVisItemVisitor &vis) override; | |
2060 | ||
2061 | std::vector<StructField> &get_variants () { return variants; } | |
2062 | ||
2063 | WhereClause &get_where_clause () { return where_clause; } | |
2064 | ||
2065 | ItemKind get_item_kind () const override { return ItemKind::Union; } | |
2066 | ||
2067 | protected: | |
2068 | /* Use covariance to implement clone function as returning this object | |
2069 | * rather than base */ | |
2070 | Union *clone_item_impl () const override { return new Union (*this); } | |
2071 | }; | |
2072 | ||
2073 | class ConstantItem : public VisItem, public ImplItem | |
2074 | { | |
2075 | Identifier identifier; | |
2076 | std::unique_ptr<Type> type; | |
2077 | std::unique_ptr<Expr> const_expr; | |
2078 | Location locus; | |
2079 | ||
2080 | public: | |
2081 | std::string as_string () const override; | |
2082 | ||
2083 | ConstantItem (Analysis::NodeMapping mappings, Identifier ident, | |
2084 | Visibility vis, std::unique_ptr<Type> type, | |
2085 | std::unique_ptr<Expr> const_expr, AST::AttrVec outer_attrs, | |
2086 | Location locus) | |
2087 | : VisItem (std::move (mappings), std::move (vis), std::move (outer_attrs)), | |
2088 | identifier (std::move (ident)), type (std::move (type)), | |
2089 | const_expr (std::move (const_expr)), locus (locus) | |
2090 | {} | |
2091 | ||
2092 | ConstantItem (ConstantItem const &other) | |
2093 | : VisItem (other), identifier (other.identifier), | |
2094 | type (other.type->clone_type ()), | |
2095 | const_expr (other.const_expr->clone_expr ()), locus (other.locus) | |
2096 | {} | |
2097 | ||
2098 | // Overload assignment operator to clone | |
2099 | ConstantItem &operator= (ConstantItem const &other) | |
2100 | { | |
2101 | VisItem::operator= (other); | |
2102 | identifier = other.identifier; | |
2103 | type = other.type->clone_type (); | |
2104 | const_expr = other.const_expr->clone_expr (); | |
2105 | locus = other.locus; | |
2106 | ||
2107 | return *this; | |
2108 | } | |
2109 | ||
2110 | // move constructors | |
2111 | ConstantItem (ConstantItem &&other) = default; | |
2112 | ConstantItem &operator= (ConstantItem &&other) = default; | |
2113 | ||
2114 | // Returns whether constant item is an "unnamed" (wildcard underscore used | |
2115 | // as identifier) constant. | |
2116 | bool is_unnamed () const { return identifier == std::string ("_"); } | |
2117 | ||
2118 | Location get_locus () const override final { return locus; } | |
2119 | ||
2120 | void accept_vis (HIRFullVisitor &vis) override; | |
2121 | void accept_vis (HIRStmtVisitor &vis) override; | |
2122 | void accept_vis (HIRImplVisitor &vis) override; | |
2123 | void accept_vis (HIRVisItemVisitor &vis) override; | |
2124 | ||
2125 | Type *get_type () { return type.get (); } | |
2126 | ||
2127 | Expr *get_expr () { return const_expr.get (); } | |
2128 | ||
e90d06c5 | 2129 | std::string get_identifier () const { return identifier; } |
8ad1d56d PH |
2130 | |
2131 | Analysis::NodeMapping get_impl_mappings () const override | |
2132 | { | |
2133 | return get_mappings (); | |
2134 | }; | |
2135 | ||
2136 | ImplItemType get_impl_item_type () const override final | |
2137 | { | |
2138 | return ImplItem::ImplItemType::CONSTANT; | |
2139 | } | |
2140 | ||
2141 | ItemKind get_item_kind () const override { return ItemKind::Constant; } | |
2142 | ||
e90d06c5 PH |
2143 | std::string get_impl_item_name () const override final |
2144 | { | |
2145 | return get_identifier (); | |
2146 | } | |
2147 | ||
8ad1d56d PH |
2148 | protected: |
2149 | /* Use covariance to implement clone function as returning this object | |
2150 | * rather than base */ | |
2151 | ConstantItem *clone_item_impl () const override | |
2152 | { | |
2153 | return new ConstantItem (*this); | |
2154 | } | |
2155 | ||
2156 | /* Use covariance to implement clone function as returning this object | |
2157 | * rather than base */ | |
2158 | ConstantItem *clone_inherent_impl_item_impl () const override | |
2159 | { | |
2160 | return new ConstantItem (*this); | |
2161 | } | |
2162 | }; | |
2163 | ||
2164 | /* Static item HIR node - items within module scope with fixed storage | |
2165 | * duration? */ | |
2166 | class StaticItem : public VisItem | |
2167 | { | |
2168 | Mutability mut; | |
2169 | Identifier name; | |
2170 | std::unique_ptr<Type> type; | |
2171 | std::unique_ptr<Expr> expr; | |
2172 | Location locus; | |
2173 | ||
2174 | public: | |
2175 | std::string as_string () const override; | |
2176 | ||
2177 | StaticItem (Analysis::NodeMapping mappings, Identifier name, Mutability mut, | |
2178 | std::unique_ptr<Type> type, std::unique_ptr<Expr> expr, | |
2179 | Visibility vis, AST::AttrVec outer_attrs, Location locus) | |
2180 | : VisItem (std::move (mappings), std::move (vis), std::move (outer_attrs)), | |
2181 | mut (mut), name (std::move (name)), type (std::move (type)), | |
2182 | expr (std::move (expr)), locus (locus) | |
2183 | {} | |
2184 | ||
2185 | // Copy constructor with clone | |
2186 | StaticItem (StaticItem const &other) | |
2187 | : VisItem (other), mut (other.mut), name (other.name), | |
2188 | type (other.type->clone_type ()), expr (other.expr->clone_expr ()), | |
2189 | locus (other.locus) | |
2190 | {} | |
2191 | ||
2192 | // Overloaded assignment operator to clone | |
2193 | StaticItem &operator= (StaticItem const &other) | |
2194 | { | |
2195 | VisItem::operator= (other); | |
2196 | name = other.name; | |
2197 | mut = other.mut; | |
2198 | type = other.type->clone_type (); | |
2199 | expr = other.expr->clone_expr (); | |
2200 | locus = other.locus; | |
2201 | ||
2202 | return *this; | |
2203 | } | |
2204 | ||
2205 | // move constructors | |
2206 | StaticItem (StaticItem &&other) = default; | |
2207 | StaticItem &operator= (StaticItem &&other) = default; | |
2208 | ||
2209 | Location get_locus () const override final { return locus; } | |
2210 | ||
2211 | void accept_vis (HIRFullVisitor &vis) override; | |
2212 | void accept_vis (HIRStmtVisitor &vis) override; | |
2213 | void accept_vis (HIRVisItemVisitor &vis) override; | |
2214 | ||
2215 | Identifier get_identifier () const { return name; } | |
2216 | ||
2217 | Mutability get_mut () const { return mut; } | |
2218 | ||
2219 | bool is_mut () const { return mut == Mutability::Mut; } | |
2220 | ||
2221 | Expr *get_expr () { return expr.get (); } | |
2222 | ||
2223 | Type *get_type () { return type.get (); } | |
2224 | ||
2225 | ItemKind get_item_kind () const override { return ItemKind::Static; } | |
2226 | ||
2227 | protected: | |
2228 | StaticItem *clone_item_impl () const override | |
2229 | { | |
2230 | return new StaticItem (*this); | |
2231 | } | |
2232 | }; | |
2233 | ||
2234 | // Function declaration in traits | |
2235 | struct TraitFunctionDecl | |
2236 | { | |
2237 | private: | |
2238 | FunctionQualifiers qualifiers; | |
2239 | Identifier function_name; | |
2240 | std::vector<std::unique_ptr<GenericParam>> generic_params; | |
2241 | std::vector<FunctionParam> function_params; | |
2242 | std::unique_ptr<Type> return_type; | |
2243 | WhereClause where_clause; | |
2244 | SelfParam self; | |
2245 | ||
2246 | public: | |
2247 | // Mega-constructor | |
2248 | TraitFunctionDecl (Identifier function_name, FunctionQualifiers qualifiers, | |
2249 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
2250 | SelfParam self, std::vector<FunctionParam> function_params, | |
2251 | std::unique_ptr<Type> return_type, | |
2252 | WhereClause where_clause) | |
2253 | : qualifiers (std::move (qualifiers)), | |
2254 | function_name (std::move (function_name)), | |
2255 | generic_params (std::move (generic_params)), | |
2256 | function_params (std::move (function_params)), | |
2257 | return_type (std::move (return_type)), | |
2258 | where_clause (std::move (where_clause)), self (std::move (self)) | |
2259 | {} | |
2260 | ||
2261 | // Copy constructor with clone | |
2262 | TraitFunctionDecl (TraitFunctionDecl const &other) | |
2263 | : qualifiers (other.qualifiers), function_name (other.function_name), | |
2264 | function_params (other.function_params), | |
2265 | return_type (other.return_type->clone_type ()), | |
2266 | where_clause (other.where_clause), self (other.self) | |
2267 | { | |
2268 | generic_params.reserve (other.generic_params.size ()); | |
2269 | for (const auto &e : other.generic_params) | |
2270 | generic_params.push_back (e->clone_generic_param ()); | |
2271 | } | |
2272 | ||
2273 | ~TraitFunctionDecl () = default; | |
2274 | ||
2275 | // Overloaded assignment operator with clone | |
2276 | TraitFunctionDecl &operator= (TraitFunctionDecl const &other) | |
2277 | { | |
2278 | function_name = other.function_name; | |
2279 | qualifiers = other.qualifiers; | |
2280 | function_params = other.function_params; | |
2281 | return_type = other.return_type->clone_type (); | |
2282 | where_clause = other.where_clause; | |
2283 | self = other.self; | |
2284 | ||
2285 | generic_params.reserve (other.generic_params.size ()); | |
2286 | for (const auto &e : other.generic_params) | |
2287 | generic_params.push_back (e->clone_generic_param ()); | |
2288 | ||
2289 | return *this; | |
2290 | } | |
2291 | ||
2292 | // move constructors | |
2293 | TraitFunctionDecl (TraitFunctionDecl &&other) = default; | |
2294 | TraitFunctionDecl &operator= (TraitFunctionDecl &&other) = default; | |
2295 | ||
2296 | std::string as_string () const; | |
2297 | ||
2298 | // Returns whether function decl has generic parameters. | |
2299 | bool has_generics () const { return !generic_params.empty (); } | |
2300 | ||
2301 | // Returns whether function decl has regular parameters. | |
2302 | bool has_params () const { return !function_params.empty (); } | |
2303 | ||
2304 | // Returns whether function has return type (otherwise is void). | |
2305 | bool has_return_type () const { return return_type != nullptr; } | |
2306 | ||
2307 | // Returns whether function has a where clause. | |
2308 | bool has_where_clause () const { return !where_clause.is_empty (); } | |
2309 | ||
2310 | bool is_method () const { return !self.is_error (); } | |
2311 | ||
2312 | SelfParam &get_self () { return self; } | |
2313 | ||
2314 | Identifier get_function_name () const { return function_name; } | |
2315 | ||
2316 | std::vector<std::unique_ptr<GenericParam>> &get_generic_params () | |
2317 | { | |
2318 | return generic_params; | |
2319 | } | |
2320 | ||
2321 | std::unique_ptr<Type> &get_return_type () | |
2322 | { | |
2323 | rust_assert (has_return_type ()); | |
2324 | return return_type; | |
2325 | } | |
2326 | ||
2327 | std::vector<FunctionParam> &get_function_params () { return function_params; } | |
2328 | ||
2329 | const FunctionQualifiers &get_qualifiers () const { return qualifiers; } | |
2330 | }; | |
2331 | ||
2332 | // Actual trait item function declaration within traits | |
2333 | class TraitItemFunc : public TraitItem | |
2334 | { | |
2335 | AST::AttrVec outer_attrs; | |
2336 | TraitFunctionDecl decl; | |
2337 | std::unique_ptr<BlockExpr> block_expr; | |
2338 | Location locus; | |
2339 | ||
2340 | public: | |
2341 | // Returns whether function has a definition or is just a declaration. | |
2342 | bool has_definition () const { return block_expr != nullptr; } | |
2343 | ||
2344 | TraitItemFunc (Analysis::NodeMapping mappings, TraitFunctionDecl decl, | |
2345 | std::unique_ptr<BlockExpr> block_expr, | |
2346 | AST::AttrVec outer_attrs, Location locus) | |
2347 | : TraitItem (mappings), outer_attrs (std::move (outer_attrs)), | |
2348 | decl (std::move (decl)), block_expr (std::move (block_expr)), | |
2349 | locus (locus) | |
2350 | {} | |
2351 | ||
2352 | // Copy constructor with clone | |
2353 | TraitItemFunc (TraitItemFunc const &other) | |
2354 | : TraitItem (other.mappings), outer_attrs (other.outer_attrs), | |
2355 | decl (other.decl), locus (other.locus) | |
2356 | { | |
2357 | if (other.block_expr != nullptr) | |
2358 | block_expr = other.block_expr->clone_block_expr (); | |
2359 | } | |
2360 | ||
2361 | // Overloaded assignment operator to clone | |
2362 | TraitItemFunc &operator= (TraitItemFunc const &other) | |
2363 | { | |
2364 | TraitItem::operator= (other); | |
2365 | outer_attrs = other.outer_attrs; | |
2366 | decl = other.decl; | |
2367 | locus = other.locus; | |
2368 | mappings = other.mappings; | |
2369 | if (other.block_expr != nullptr) | |
2370 | block_expr = other.block_expr->clone_block_expr (); | |
2371 | ||
2372 | return *this; | |
2373 | } | |
2374 | ||
2375 | // move constructors | |
2376 | TraitItemFunc (TraitItemFunc &&other) = default; | |
2377 | TraitItemFunc &operator= (TraitItemFunc &&other) = default; | |
2378 | ||
2379 | std::string as_string () const override; | |
2380 | ||
2381 | Location get_locus () const { return locus; } | |
2382 | ||
2383 | void accept_vis (HIRFullVisitor &vis) override; | |
2384 | void accept_vis (HIRTraitItemVisitor &vis) override; | |
2385 | ||
2386 | TraitFunctionDecl &get_decl () { return decl; } | |
2387 | ||
2388 | const TraitFunctionDecl &get_decl () const { return decl; } | |
2389 | ||
2390 | bool has_block_defined () const { return block_expr != nullptr; } | |
2391 | ||
2392 | std::unique_ptr<BlockExpr> &get_block_expr () | |
2393 | { | |
2394 | rust_assert (has_block_defined ()); | |
2395 | return block_expr; | |
2396 | } | |
2397 | ||
2398 | const std::string trait_identifier () const override final | |
2399 | { | |
2400 | return decl.get_function_name (); | |
2401 | } | |
2402 | ||
2403 | TraitItemKind get_item_kind () const override final | |
2404 | { | |
2405 | return TraitItemKind::FUNC; | |
2406 | } | |
2407 | ||
2408 | AST::AttrVec &get_outer_attrs () override final { return outer_attrs; } | |
2409 | const AST::AttrVec &get_outer_attrs () const override final | |
2410 | { | |
2411 | return outer_attrs; | |
2412 | } | |
2413 | ||
8f0b1526 PH |
2414 | Location get_trait_locus () const override { return get_locus (); } |
2415 | ||
8ad1d56d PH |
2416 | protected: |
2417 | // Clone function implementation as (not pure) virtual method | |
2418 | TraitItemFunc *clone_trait_item_impl () const override | |
2419 | { | |
2420 | return new TraitItemFunc (*this); | |
2421 | } | |
2422 | }; | |
2423 | ||
2424 | // Constant item within traits | |
2425 | class TraitItemConst : public TraitItem | |
2426 | { | |
2427 | AST::AttrVec outer_attrs; | |
2428 | Identifier name; | |
2429 | std::unique_ptr<Type> type; | |
2430 | std::unique_ptr<Expr> expr; | |
2431 | Location locus; | |
2432 | ||
2433 | public: | |
2434 | // Whether the constant item has an associated expression. | |
2435 | bool has_expression () const { return expr != nullptr; } | |
2436 | ||
2437 | TraitItemConst (Analysis::NodeMapping mappings, Identifier name, | |
2438 | std::unique_ptr<Type> type, std::unique_ptr<Expr> expr, | |
2439 | AST::AttrVec outer_attrs, Location locus) | |
2440 | : TraitItem (mappings), outer_attrs (std::move (outer_attrs)), | |
2441 | name (std::move (name)), type (std::move (type)), expr (std::move (expr)), | |
2442 | locus (locus) | |
2443 | {} | |
2444 | ||
2445 | // Copy constructor with clones | |
2446 | TraitItemConst (TraitItemConst const &other) | |
2447 | : TraitItem (other.mappings), outer_attrs (other.outer_attrs), | |
2448 | name (other.name), type (other.type->clone_type ()), | |
2449 | expr (other.expr->clone_expr ()), locus (other.locus) | |
2450 | {} | |
2451 | ||
2452 | // Overloaded assignment operator to clone | |
2453 | TraitItemConst &operator= (TraitItemConst const &other) | |
2454 | { | |
2455 | TraitItem::operator= (other); | |
2456 | outer_attrs = other.outer_attrs; | |
2457 | name = other.name; | |
2458 | type = other.type->clone_type (); | |
2459 | expr = other.expr->clone_expr (); | |
2460 | locus = other.locus; | |
2461 | mappings = other.mappings; | |
2462 | ||
2463 | return *this; | |
2464 | } | |
2465 | ||
2466 | // move constructors | |
2467 | TraitItemConst (TraitItemConst &&other) = default; | |
2468 | TraitItemConst &operator= (TraitItemConst &&other) = default; | |
2469 | ||
2470 | std::string as_string () const override; | |
2471 | ||
2472 | Location get_locus () const { return locus; } | |
2473 | ||
2474 | void accept_vis (HIRFullVisitor &vis) override; | |
2475 | void accept_vis (HIRTraitItemVisitor &vis) override; | |
2476 | ||
2477 | Identifier get_name () const { return name; } | |
2478 | ||
2479 | bool has_expr () const { return expr != nullptr; } | |
2480 | ||
2481 | std::unique_ptr<Type> &get_type () { return type; } | |
2482 | ||
2483 | std::unique_ptr<Expr> &get_expr () | |
2484 | { | |
2485 | rust_assert (has_expr ()); | |
2486 | return expr; | |
2487 | } | |
2488 | ||
2489 | const std::string trait_identifier () const override final { return name; } | |
2490 | ||
2491 | TraitItemKind get_item_kind () const override final | |
2492 | { | |
2493 | return TraitItemKind::CONST; | |
2494 | } | |
2495 | ||
2496 | AST::AttrVec &get_outer_attrs () override final { return outer_attrs; } | |
2497 | const AST::AttrVec &get_outer_attrs () const override final | |
2498 | { | |
2499 | return outer_attrs; | |
2500 | } | |
2501 | ||
8f0b1526 PH |
2502 | Location get_trait_locus () const override { return get_locus (); } |
2503 | ||
8ad1d56d PH |
2504 | protected: |
2505 | // Clone function implementation as (not pure) virtual method | |
2506 | TraitItemConst *clone_trait_item_impl () const override | |
2507 | { | |
2508 | return new TraitItemConst (*this); | |
2509 | } | |
2510 | }; | |
2511 | ||
2512 | // Type items within traits | |
2513 | class TraitItemType : public TraitItem | |
2514 | { | |
2515 | AST::AttrVec outer_attrs; | |
2516 | ||
2517 | Identifier name; | |
2518 | std::vector<std::unique_ptr<TypeParamBound>> | |
2519 | type_param_bounds; // inlined form | |
2520 | Location locus; | |
2521 | ||
2522 | public: | |
2523 | // Returns whether trait item type has type param bounds. | |
2524 | bool has_type_param_bounds () const { return !type_param_bounds.empty (); } | |
2525 | ||
2526 | TraitItemType (Analysis::NodeMapping mappings, Identifier name, | |
2527 | std::vector<std::unique_ptr<TypeParamBound>> type_param_bounds, | |
2528 | AST::AttrVec outer_attrs, Location locus) | |
2529 | : TraitItem (mappings), outer_attrs (std::move (outer_attrs)), | |
2530 | name (std::move (name)), | |
2531 | type_param_bounds (std::move (type_param_bounds)), locus (locus) | |
2532 | {} | |
2533 | ||
2534 | // Copy constructor with vector clone | |
2535 | TraitItemType (TraitItemType const &other) | |
2536 | : TraitItem (other.mappings), outer_attrs (other.outer_attrs), | |
2537 | name (other.name), locus (other.locus) | |
2538 | { | |
2539 | type_param_bounds.reserve (other.type_param_bounds.size ()); | |
2540 | for (const auto &e : other.type_param_bounds) | |
2541 | type_param_bounds.push_back (e->clone_type_param_bound ()); | |
2542 | } | |
2543 | ||
2544 | // Overloaded assignment operator with vector clone | |
2545 | TraitItemType &operator= (TraitItemType const &other) | |
2546 | { | |
2547 | TraitItem::operator= (other); | |
2548 | outer_attrs = other.outer_attrs; | |
2549 | name = other.name; | |
2550 | locus = other.locus; | |
2551 | mappings = other.mappings; | |
2552 | ||
2553 | type_param_bounds.reserve (other.type_param_bounds.size ()); | |
2554 | for (const auto &e : other.type_param_bounds) | |
2555 | type_param_bounds.push_back (e->clone_type_param_bound ()); | |
2556 | ||
2557 | return *this; | |
2558 | } | |
2559 | ||
2560 | // default move constructors | |
2561 | TraitItemType (TraitItemType &&other) = default; | |
2562 | TraitItemType &operator= (TraitItemType &&other) = default; | |
2563 | ||
2564 | std::string as_string () const override; | |
2565 | ||
2566 | Location get_locus () const { return locus; } | |
2567 | ||
2568 | void accept_vis (HIRFullVisitor &vis) override; | |
2569 | void accept_vis (HIRTraitItemVisitor &vis) override; | |
2570 | ||
2571 | Identifier get_name () const { return name; } | |
2572 | ||
2573 | std::vector<std::unique_ptr<TypeParamBound>> &get_type_param_bounds () | |
2574 | { | |
2575 | return type_param_bounds; | |
2576 | } | |
2577 | ||
2578 | const std::string trait_identifier () const override final { return name; } | |
2579 | ||
2580 | TraitItemKind get_item_kind () const override final | |
2581 | { | |
2582 | return TraitItemKind::TYPE; | |
2583 | } | |
2584 | ||
2585 | AST::AttrVec &get_outer_attrs () override final { return outer_attrs; } | |
2586 | const AST::AttrVec &get_outer_attrs () const override final | |
2587 | { | |
2588 | return outer_attrs; | |
2589 | } | |
2590 | ||
8f0b1526 PH |
2591 | Location get_trait_locus () const override { return get_locus (); } |
2592 | ||
8ad1d56d PH |
2593 | protected: |
2594 | // Clone function implementation as (not pure) virtual method | |
2595 | TraitItemType *clone_trait_item_impl () const override | |
2596 | { | |
2597 | return new TraitItemType (*this); | |
2598 | } | |
2599 | }; | |
2600 | ||
2601 | // Rust trait item declaration HIR node | |
2602 | class Trait : public VisItem | |
2603 | { | |
2604 | Unsafety unsafety; | |
2605 | Identifier name; | |
2606 | std::vector<std::unique_ptr<GenericParam>> generic_params; | |
2607 | std::vector<std::unique_ptr<TypeParamBound>> type_param_bounds; | |
2608 | WhereClause where_clause; | |
2609 | std::vector<std::unique_ptr<TraitItem>> trait_items; | |
2610 | Location locus; | |
2611 | ||
2612 | public: | |
2613 | std::string as_string () const override; | |
2614 | ||
2615 | // Returns whether trait has generic parameters. | |
2616 | bool has_generics () const { return !generic_params.empty (); } | |
2617 | ||
2618 | // Returns whether trait has type parameter bounds. | |
2619 | bool has_type_param_bounds () const { return !type_param_bounds.empty (); } | |
2620 | ||
2621 | // Returns whether trait has where clause. | |
2622 | bool has_where_clause () const { return !where_clause.is_empty (); } | |
2623 | ||
2624 | // Returns whether trait has trait items. | |
2625 | bool has_trait_items () const { return !trait_items.empty (); } | |
2626 | ||
2627 | std::vector<std::unique_ptr<TraitItem>> &get_trait_items () | |
2628 | { | |
2629 | return trait_items; | |
2630 | } | |
2631 | ||
2632 | Identifier get_name () const { return name; } | |
2633 | ||
2634 | // Mega-constructor | |
2635 | Trait (Analysis::NodeMapping mappings, Identifier name, Unsafety unsafety, | |
2636 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
2637 | std::vector<std::unique_ptr<TypeParamBound>> type_param_bounds, | |
2638 | WhereClause where_clause, | |
2639 | std::vector<std::unique_ptr<TraitItem>> trait_items, Visibility vis, | |
2640 | AST::AttrVec outer_attrs, Location locus) | |
2641 | : VisItem (std::move (mappings), std::move (vis), std::move (outer_attrs)), | |
2642 | unsafety (unsafety), name (std::move (name)), | |
2643 | generic_params (std::move (generic_params)), | |
2644 | type_param_bounds (std::move (type_param_bounds)), | |
2645 | where_clause (std::move (where_clause)), | |
2646 | trait_items (std::move (trait_items)), locus (locus) | |
2647 | {} | |
2648 | ||
2649 | // Copy constructor with vector clone | |
2650 | Trait (Trait const &other) | |
2651 | : VisItem (other), unsafety (other.unsafety), name (other.name), | |
2652 | where_clause (other.where_clause), locus (other.locus) | |
2653 | { | |
2654 | generic_params.reserve (other.generic_params.size ()); | |
2655 | for (const auto &e : other.generic_params) | |
2656 | generic_params.push_back (e->clone_generic_param ()); | |
2657 | ||
2658 | type_param_bounds.reserve (other.type_param_bounds.size ()); | |
2659 | for (const auto &e : other.type_param_bounds) | |
2660 | type_param_bounds.push_back (e->clone_type_param_bound ()); | |
2661 | ||
2662 | trait_items.reserve (other.trait_items.size ()); | |
2663 | for (const auto &e : other.trait_items) | |
2664 | trait_items.push_back (e->clone_trait_item ()); | |
2665 | } | |
2666 | ||
2667 | // Overloaded assignment operator with vector clone | |
2668 | Trait &operator= (Trait const &other) | |
2669 | { | |
2670 | VisItem::operator= (other); | |
2671 | name = other.name; | |
2672 | unsafety = other.unsafety; | |
2673 | where_clause = other.where_clause; | |
2674 | locus = other.locus; | |
2675 | ||
2676 | generic_params.reserve (other.generic_params.size ()); | |
2677 | for (const auto &e : other.generic_params) | |
2678 | generic_params.push_back (e->clone_generic_param ()); | |
2679 | ||
2680 | type_param_bounds.reserve (other.type_param_bounds.size ()); | |
2681 | for (const auto &e : other.type_param_bounds) | |
2682 | type_param_bounds.push_back (e->clone_type_param_bound ()); | |
2683 | ||
2684 | trait_items.reserve (other.trait_items.size ()); | |
2685 | for (const auto &e : other.trait_items) | |
2686 | trait_items.push_back (e->clone_trait_item ()); | |
2687 | ||
2688 | return *this; | |
2689 | } | |
2690 | ||
2691 | // default move constructors | |
2692 | Trait (Trait &&other) = default; | |
2693 | Trait &operator= (Trait &&other) = default; | |
2694 | ||
2695 | Location get_locus () const override final { return locus; } | |
2696 | ||
2697 | void accept_vis (HIRFullVisitor &vis) override; | |
2698 | void accept_vis (HIRStmtVisitor &vis) override; | |
2699 | void accept_vis (HIRVisItemVisitor &vis) override; | |
2700 | ||
2701 | std::vector<std::unique_ptr<GenericParam>> &get_generic_params () | |
2702 | { | |
2703 | return generic_params; | |
2704 | } | |
2705 | ||
2706 | const std::vector<std::unique_ptr<GenericParam>> &get_generic_params () const | |
2707 | { | |
2708 | return generic_params; | |
2709 | } | |
2710 | ||
2711 | std::vector<std::unique_ptr<TypeParamBound>> &get_type_param_bounds () | |
2712 | { | |
2713 | return type_param_bounds; | |
2714 | } | |
2715 | ||
2716 | const std::vector<std::unique_ptr<TypeParamBound>> & | |
2717 | get_type_param_bounds () const | |
2718 | { | |
2719 | return type_param_bounds; | |
2720 | } | |
2721 | ||
2722 | ItemKind get_item_kind () const override { return ItemKind::Trait; } | |
2723 | ||
2724 | protected: | |
2725 | /* Use covariance to implement clone function as returning this object | |
2726 | * rather than base */ | |
2727 | Trait *clone_item_impl () const override { return new Trait (*this); } | |
2728 | }; | |
2729 | ||
2730 | class ImplBlock : public VisItem | |
2731 | { | |
2732 | std::vector<std::unique_ptr<GenericParam>> generic_params; | |
2733 | std::unique_ptr<Type> impl_type; | |
2734 | std::unique_ptr<TypePath> trait_ref; | |
2735 | WhereClause where_clause; | |
2736 | Polarity polarity; | |
2737 | AST::AttrVec inner_attrs; | |
2738 | Location locus; | |
2739 | std::vector<std::unique_ptr<ImplItem>> impl_items; | |
2740 | ||
2741 | public: | |
2742 | ImplBlock (Analysis::NodeMapping mappings, | |
2743 | std::vector<std::unique_ptr<ImplItem>> impl_items, | |
2744 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
2745 | std::unique_ptr<Type> impl_type, | |
2746 | std::unique_ptr<TypePath> trait_ref, WhereClause where_clause, | |
2747 | Polarity polarity, Visibility vis, AST::AttrVec inner_attrs, | |
2748 | AST::AttrVec outer_attrs, Location locus) | |
2749 | : VisItem (std::move (mappings), std::move (vis), std::move (outer_attrs)), | |
2750 | generic_params (std::move (generic_params)), | |
2751 | impl_type (std::move (impl_type)), trait_ref (std::move (trait_ref)), | |
2752 | where_clause (std::move (where_clause)), polarity (polarity), | |
2753 | inner_attrs (std::move (inner_attrs)), locus (locus), | |
2754 | impl_items (std::move (impl_items)) | |
2755 | {} | |
2756 | ||
2757 | ImplBlock (ImplBlock const &other) | |
2758 | : VisItem (other), impl_type (other.impl_type->clone_type ()), | |
2759 | where_clause (other.where_clause), polarity (other.polarity), | |
2760 | inner_attrs (other.inner_attrs), locus (other.locus) | |
2761 | { | |
2762 | generic_params.reserve (other.generic_params.size ()); | |
2763 | for (const auto &e : other.generic_params) | |
2764 | generic_params.push_back (e->clone_generic_param ()); | |
2765 | ||
2766 | impl_items.reserve (other.impl_items.size ()); | |
2767 | for (const auto &e : other.impl_items) | |
2768 | impl_items.push_back (e->clone_inherent_impl_item ()); | |
2769 | } | |
2770 | ||
2771 | ImplBlock &operator= (ImplBlock const &other) | |
2772 | { | |
2773 | VisItem::operator= (other); | |
2774 | impl_type = other.impl_type->clone_type (); | |
2775 | where_clause = other.where_clause; | |
2776 | polarity = other.polarity; | |
2777 | inner_attrs = other.inner_attrs; | |
2778 | locus = other.locus; | |
2779 | ||
2780 | generic_params.reserve (other.generic_params.size ()); | |
2781 | for (const auto &e : other.generic_params) | |
2782 | generic_params.push_back (e->clone_generic_param ()); | |
2783 | ||
2784 | impl_items.reserve (other.impl_items.size ()); | |
2785 | for (const auto &e : other.impl_items) | |
2786 | impl_items.push_back (e->clone_inherent_impl_item ()); | |
2787 | ||
2788 | return *this; | |
2789 | } | |
2790 | ||
2791 | ImplBlock (ImplBlock &&other) = default; | |
2792 | ImplBlock &operator= (ImplBlock &&other) = default; | |
2793 | ||
2794 | std::string as_string () const override; | |
2795 | ||
2796 | // Returns whether inherent impl block has inherent impl items. | |
2797 | bool has_impl_items () const { return !impl_items.empty (); } | |
2798 | ||
2799 | void accept_vis (HIRFullVisitor &vis) override; | |
2800 | void accept_vis (HIRStmtVisitor &vis) override; | |
2801 | void accept_vis (HIRVisItemVisitor &vis) override; | |
2802 | ||
2803 | std::vector<std::unique_ptr<ImplItem>> &get_impl_items () | |
2804 | { | |
2805 | return impl_items; | |
2806 | }; | |
2807 | ||
2808 | const std::vector<std::unique_ptr<ImplItem>> &get_impl_items () const | |
2809 | { | |
2810 | return impl_items; | |
2811 | }; | |
2812 | ||
2813 | // Returns whether impl has generic parameters. | |
2814 | bool has_generics () const { return !generic_params.empty (); } | |
2815 | ||
2816 | // Returns whether impl has where clause. | |
2817 | bool has_where_clause () const { return !where_clause.is_empty (); } | |
2818 | ||
2819 | // Returns the polarity of the impl. | |
2820 | Polarity get_polarity () const { return polarity; } | |
2821 | ||
2822 | // Returns whether impl has inner attributes. | |
2823 | bool has_inner_attrs () const { return !inner_attrs.empty (); } | |
2824 | ||
2825 | Location get_locus () const override final { return locus; } | |
2826 | ||
2827 | std::unique_ptr<Type> &get_type () { return impl_type; }; | |
2828 | ||
2829 | std::vector<std::unique_ptr<GenericParam>> &get_generic_params () | |
2830 | { | |
2831 | return generic_params; | |
2832 | } | |
2833 | ||
2834 | bool has_trait_ref () const { return trait_ref != nullptr; } | |
2835 | ||
2836 | std::unique_ptr<TypePath> &get_trait_ref () | |
2837 | { | |
2838 | rust_assert (has_trait_ref ()); | |
2839 | return trait_ref; | |
2840 | } | |
2841 | ||
2842 | WhereClause &get_where_clause () { return where_clause; } | |
2843 | ||
2844 | ItemKind get_item_kind () const override { return ItemKind::Impl; } | |
2845 | ||
2846 | protected: | |
2847 | ImplBlock *clone_item_impl () const override { return new ImplBlock (*this); } | |
2848 | }; | |
2849 | ||
2850 | // Abstract base class for an item used inside an extern block | |
2851 | class ExternalItem : public Node | |
2852 | { | |
2853 | Analysis::NodeMapping mappings; | |
2854 | AST::AttrVec outer_attrs; | |
2855 | Visibility visibility; | |
2856 | Identifier item_name; | |
2857 | Location locus; | |
2858 | ||
2859 | public: | |
2860 | enum class ExternKind | |
2861 | { | |
2862 | Static, | |
2863 | Function, | |
2864 | }; | |
2865 | ||
2866 | virtual ~ExternalItem () {} | |
2867 | ||
2868 | BaseKind get_hir_kind () override final { return EXTERNAL; } | |
2869 | ||
2870 | virtual ExternKind get_extern_kind () = 0; | |
2871 | ||
2872 | // Returns whether item has outer attributes. | |
2873 | bool has_outer_attrs () const { return !outer_attrs.empty (); } | |
2874 | ||
2875 | // Returns whether item has non-default visibility. | |
2876 | bool has_visibility () const { return !visibility.is_error (); } | |
2877 | ||
2878 | // Unique pointer custom clone function | |
2879 | std::unique_ptr<ExternalItem> clone_external_item () const | |
2880 | { | |
2881 | return std::unique_ptr<ExternalItem> (clone_external_item_impl ()); | |
2882 | } | |
2883 | ||
2884 | virtual std::string as_string () const; | |
2885 | ||
2886 | Location get_locus () const { return locus; } | |
2887 | ||
2888 | virtual void accept_vis (HIRFullVisitor &vis) = 0; | |
2889 | virtual void accept_vis (HIRExternalItemVisitor &vis) = 0; | |
2890 | ||
2891 | Analysis::NodeMapping get_mappings () const { return mappings; } | |
2892 | ||
2893 | Identifier get_item_name () const { return item_name; } | |
2894 | ||
2895 | AST::AttrVec &get_outer_attrs () { return outer_attrs; } | |
2896 | ||
2897 | protected: | |
2898 | ExternalItem (Analysis::NodeMapping mappings, Identifier item_name, | |
2899 | Visibility vis, AST::AttrVec outer_attrs, Location locus) | |
2900 | : mappings (mappings), outer_attrs (std::move (outer_attrs)), | |
2901 | visibility (std::move (vis)), item_name (std::move (item_name)), | |
2902 | locus (locus) | |
2903 | {} | |
2904 | ||
2905 | // Copy constructor | |
2906 | ExternalItem (ExternalItem const &other) | |
2907 | : mappings (other.mappings), outer_attrs (other.outer_attrs), | |
2908 | visibility (other.visibility), item_name (other.item_name), | |
2909 | locus (other.locus) | |
2910 | {} | |
2911 | ||
2912 | // Overloaded assignment operator to clone | |
2913 | ExternalItem &operator= (ExternalItem const &other) | |
2914 | { | |
2915 | mappings = other.mappings; | |
2916 | item_name = other.item_name; | |
2917 | visibility = other.visibility; | |
2918 | outer_attrs = other.outer_attrs; | |
2919 | locus = other.locus; | |
2920 | ||
2921 | return *this; | |
2922 | } | |
2923 | ||
2924 | // move constructors | |
2925 | ExternalItem (ExternalItem &&other) = default; | |
2926 | ExternalItem &operator= (ExternalItem &&other) = default; | |
2927 | ||
2928 | // Clone function implementation as pure virtual method | |
2929 | virtual ExternalItem *clone_external_item_impl () const = 0; | |
2930 | }; | |
2931 | ||
2932 | // A static item used in an extern block | |
2933 | class ExternalStaticItem : public ExternalItem | |
2934 | { | |
2935 | Mutability mut; | |
2936 | std::unique_ptr<Type> item_type; | |
2937 | ||
2938 | public: | |
2939 | ExternalStaticItem (Analysis::NodeMapping mappings, Identifier item_name, | |
2940 | std::unique_ptr<Type> item_type, Mutability mut, | |
2941 | Visibility vis, AST::AttrVec outer_attrs, Location locus) | |
2942 | : ExternalItem (std::move (mappings), std::move (item_name), | |
2943 | std::move (vis), std::move (outer_attrs), locus), | |
2944 | mut (mut), item_type (std::move (item_type)) | |
2945 | {} | |
2946 | ||
2947 | // Copy constructor | |
2948 | ExternalStaticItem (ExternalStaticItem const &other) | |
2949 | : ExternalItem (other), mut (other.mut), | |
2950 | item_type (other.item_type->clone_type ()) | |
2951 | {} | |
2952 | ||
2953 | // Overloaded assignment operator to clone | |
2954 | ExternalStaticItem &operator= (ExternalStaticItem const &other) | |
2955 | { | |
2956 | ExternalItem::operator= (other); | |
2957 | item_type = other.item_type->clone_type (); | |
2958 | mut = other.mut; | |
2959 | ||
2960 | return *this; | |
2961 | } | |
2962 | ||
2963 | // move constructors | |
2964 | ExternalStaticItem (ExternalStaticItem &&other) = default; | |
2965 | ExternalStaticItem &operator= (ExternalStaticItem &&other) = default; | |
2966 | ||
2967 | std::string as_string () const override; | |
2968 | ||
2969 | void accept_vis (HIRFullVisitor &vis) override; | |
2970 | void accept_vis (HIRExternalItemVisitor &vis) override; | |
2971 | ||
2972 | bool is_mut () const { return mut == Mutability::Mut; } | |
2973 | ||
2974 | Mutability get_mut () { return mut; } | |
2975 | ||
2976 | std::unique_ptr<Type> &get_item_type () { return item_type; } | |
2977 | ||
2978 | ExternKind get_extern_kind () override { return ExternKind::Static; } | |
2979 | ||
2980 | protected: | |
2981 | /* Use covariance to implement clone function as returning this object | |
2982 | * rather than base */ | |
2983 | ExternalStaticItem *clone_external_item_impl () const override | |
2984 | { | |
2985 | return new ExternalStaticItem (*this); | |
2986 | } | |
2987 | }; | |
2988 | ||
2989 | // A named function parameter used in external functions | |
2990 | struct NamedFunctionParam | |
2991 | { | |
2992 | private: | |
2993 | Identifier name; | |
2994 | std::unique_ptr<Type> param_type; | |
2995 | Analysis::NodeMapping mappings; | |
2996 | ||
2997 | public: | |
2998 | bool has_name () const { return name != "_"; } | |
2999 | ||
3000 | NamedFunctionParam (Analysis::NodeMapping mappings, Identifier name, | |
3001 | std::unique_ptr<Type> param_type) | |
3002 | : name (std::move (name)), param_type (std::move (param_type)), | |
3003 | mappings (std::move (mappings)) | |
3004 | {} | |
3005 | ||
3006 | // Copy constructor | |
3007 | NamedFunctionParam (NamedFunctionParam const &other) | |
3008 | : name (other.name), param_type (other.param_type->clone_type ()), | |
3009 | mappings (other.mappings) | |
3010 | {} | |
3011 | ||
3012 | ~NamedFunctionParam () = default; | |
3013 | ||
3014 | // Overloaded assignment operator to clone | |
3015 | NamedFunctionParam &operator= (NamedFunctionParam const &other) | |
3016 | { | |
3017 | mappings = other.mappings; | |
3018 | name = other.name; | |
3019 | param_type = other.param_type->clone_type (); | |
3020 | // has_name = other.has_name; | |
3021 | ||
3022 | return *this; | |
3023 | } | |
3024 | ||
3025 | // move constructors | |
3026 | NamedFunctionParam (NamedFunctionParam &&other) = default; | |
3027 | NamedFunctionParam &operator= (NamedFunctionParam &&other) = default; | |
3028 | ||
3029 | std::string as_string () const; | |
3030 | ||
3031 | Identifier get_param_name () const { return name; } | |
3032 | ||
3033 | std::unique_ptr<Type> &get_type () { return param_type; } | |
3034 | ||
3035 | Analysis::NodeMapping get_mappings () const { return mappings; } | |
3036 | }; | |
3037 | ||
3038 | // A function item used in an extern block | |
3039 | class ExternalFunctionItem : public ExternalItem | |
3040 | { | |
3041 | // bool has_generics; | |
3042 | // Generics generic_params; | |
3043 | std::vector<std::unique_ptr<GenericParam>> generic_params; // inlined | |
3044 | ||
3045 | // bool has_return_type; | |
3046 | // FunctionReturnType return_type; | |
3047 | std::unique_ptr<Type> return_type; // inlined | |
3048 | ||
3049 | // bool has_where_clause; | |
3050 | WhereClause where_clause; | |
3051 | ||
3052 | std::vector<NamedFunctionParam> function_params; | |
3053 | bool has_variadics; | |
3054 | ||
3055 | public: | |
3056 | // Returns whether item has generic parameters. | |
3057 | bool has_generics () const { return !generic_params.empty (); } | |
3058 | ||
3059 | // Returns whether item has a return type (otherwise void). | |
3060 | bool has_return_type () const { return return_type != nullptr; } | |
3061 | ||
3062 | // Returns whether item has a where clause. | |
3063 | bool has_where_clause () const { return !where_clause.is_empty (); } | |
3064 | ||
3065 | ExternalFunctionItem ( | |
3066 | Analysis::NodeMapping mappings, Identifier item_name, | |
3067 | std::vector<std::unique_ptr<GenericParam>> generic_params, | |
3068 | std::unique_ptr<Type> return_type, WhereClause where_clause, | |
3069 | std::vector<NamedFunctionParam> function_params, bool has_variadics, | |
3070 | Visibility vis, AST::AttrVec outer_attrs, Location locus) | |
3071 | : ExternalItem (std::move (mappings), std::move (item_name), | |
3072 | std::move (vis), std::move (outer_attrs), locus), | |
3073 | generic_params (std::move (generic_params)), | |
3074 | return_type (std::move (return_type)), | |
3075 | where_clause (std::move (where_clause)), | |
3076 | function_params (std::move (function_params)), | |
3077 | has_variadics (has_variadics) | |
3078 | {} | |
3079 | ||
3080 | // Copy constructor with clone | |
3081 | ExternalFunctionItem (ExternalFunctionItem const &other) | |
3082 | : ExternalItem (other), return_type (other.return_type->clone_type ()), | |
3083 | where_clause (other.where_clause), | |
3084 | function_params (other.function_params), | |
3085 | has_variadics (other.has_variadics) | |
3086 | { | |
3087 | generic_params.reserve (other.generic_params.size ()); | |
3088 | for (const auto &e : other.generic_params) | |
3089 | generic_params.push_back (e->clone_generic_param ()); | |
3090 | } | |
3091 | ||
3092 | // Overloaded assignment operator with clone | |
3093 | ExternalFunctionItem &operator= (ExternalFunctionItem const &other) | |
3094 | { | |
3095 | ExternalItem::operator= (other); | |
3096 | return_type = other.return_type->clone_type (); | |
3097 | where_clause = other.where_clause; | |
3098 | function_params = other.function_params; | |
3099 | has_variadics = other.has_variadics; | |
3100 | ||
3101 | generic_params.reserve (other.generic_params.size ()); | |
3102 | for (const auto &e : other.generic_params) | |
3103 | generic_params.push_back (e->clone_generic_param ()); | |
3104 | ||
3105 | return *this; | |
3106 | } | |
3107 | ||
3108 | // move constructors | |
3109 | ExternalFunctionItem (ExternalFunctionItem &&other) = default; | |
3110 | ExternalFunctionItem &operator= (ExternalFunctionItem &&other) = default; | |
3111 | ||
3112 | std::string as_string () const override; | |
3113 | ||
3114 | void accept_vis (HIRFullVisitor &vis) override; | |
3115 | void accept_vis (HIRExternalItemVisitor &vis) override; | |
3116 | ||
3117 | std::vector<std::unique_ptr<GenericParam>> &get_generic_params () | |
3118 | { | |
3119 | return generic_params; | |
3120 | } | |
3121 | ||
3122 | std::unique_ptr<Type> &get_return_type () { return return_type; } | |
3123 | ||
3124 | std::vector<NamedFunctionParam> &get_function_params () | |
3125 | { | |
3126 | return function_params; | |
3127 | } | |
3128 | ||
3129 | bool is_variadic () const { return has_variadics; } | |
3130 | ||
3131 | ExternKind get_extern_kind () override { return ExternKind::Function; } | |
3132 | ||
3133 | protected: | |
3134 | /* Use covariance to implement clone function as returning this object | |
3135 | * rather than base */ | |
3136 | ExternalFunctionItem *clone_external_item_impl () const override | |
3137 | { | |
3138 | return new ExternalFunctionItem (*this); | |
3139 | } | |
3140 | }; | |
3141 | ||
3142 | // An extern block HIR node | |
3143 | class ExternBlock : public VisItem | |
3144 | { | |
3145 | ABI abi; | |
3146 | AST::AttrVec inner_attrs; | |
3147 | std::vector<std::unique_ptr<ExternalItem>> extern_items; | |
3148 | Location locus; | |
3149 | ||
3150 | public: | |
3151 | std::string as_string () const override; | |
3152 | ||
3153 | // Returns whether extern block has inner attributes. | |
3154 | bool has_inner_attrs () const { return !inner_attrs.empty (); } | |
3155 | ||
3156 | // Returns whether extern block has extern items. | |
3157 | bool has_extern_items () const { return !extern_items.empty (); } | |
3158 | ||
3159 | ABI get_abi () const { return abi; } | |
3160 | ||
3161 | ExternBlock (Analysis::NodeMapping mappings, ABI abi, | |
3162 | std::vector<std::unique_ptr<ExternalItem>> extern_items, | |
3163 | Visibility vis, AST::AttrVec inner_attrs, | |
3164 | AST::AttrVec outer_attrs, Location locus) | |
3165 | : VisItem (std::move (mappings), std::move (vis), std::move (outer_attrs)), | |
3166 | abi (abi), inner_attrs (std::move (inner_attrs)), | |
3167 | extern_items (std::move (extern_items)), locus (locus) | |
3168 | {} | |
3169 | ||
3170 | // Copy constructor with vector clone | |
3171 | ExternBlock (ExternBlock const &other) | |
3172 | : VisItem (other), abi (other.abi), inner_attrs (other.inner_attrs), | |
3173 | locus (other.locus) | |
3174 | { | |
3175 | extern_items.reserve (other.extern_items.size ()); | |
3176 | for (const auto &e : other.extern_items) | |
3177 | extern_items.push_back (e->clone_external_item ()); | |
3178 | } | |
3179 | ||
3180 | // Overloaded assignment operator with vector clone | |
3181 | ExternBlock &operator= (ExternBlock const &other) | |
3182 | { | |
3183 | VisItem::operator= (other); | |
3184 | abi = other.abi; | |
3185 | inner_attrs = other.inner_attrs; | |
3186 | locus = other.locus; | |
3187 | ||
3188 | extern_items.reserve (other.extern_items.size ()); | |
3189 | for (const auto &e : other.extern_items) | |
3190 | extern_items.push_back (e->clone_external_item ()); | |
3191 | ||
3192 | return *this; | |
3193 | } | |
3194 | ||
3195 | // move constructors | |
3196 | ExternBlock (ExternBlock &&other) = default; | |
3197 | ExternBlock &operator= (ExternBlock &&other) = default; | |
3198 | ||
3199 | Location get_locus () const override final { return locus; } | |
3200 | ||
3201 | void accept_vis (HIRFullVisitor &vis) override; | |
3202 | void accept_vis (HIRStmtVisitor &vis) override; | |
3203 | void accept_vis (HIRVisItemVisitor &vis) override; | |
3204 | ||
3205 | std::vector<std::unique_ptr<ExternalItem>> &get_extern_items () | |
3206 | { | |
3207 | return extern_items; | |
3208 | } | |
3209 | ||
3210 | ItemKind get_item_kind () const override { return ItemKind::ExternBlock; } | |
3211 | ||
3212 | protected: | |
3213 | /* Use covariance to implement clone function as returning this object | |
3214 | * rather than base */ | |
3215 | ExternBlock *clone_item_impl () const override | |
3216 | { | |
3217 | return new ExternBlock (*this); | |
3218 | } | |
3219 | ||
3220 | /* Use covariance to implement clone function as returning this object | |
3221 | * rather than base */ | |
3222 | /*virtual ExternBlock* clone_statement_impl() const override { | |
3223 | return new ExternBlock(*this); | |
3224 | }*/ | |
3225 | }; | |
3226 | ||
3227 | } // namespace HIR | |
3228 | } // namespace Rust | |
3229 | ||
3230 | #endif |