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1 : : // Copyright (C) 2020-2024 Free Software Foundation, Inc.
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_AST_VISITOR_H
20 : : #define RUST_AST_VISITOR_H
21 : : // Visitor base for AST
22 : :
23 : : // full include not required - only forward decls
24 : : #include "rust-ast-full-decls.h"
25 : : #include "rust-ast.h"
26 : : #include "rust-item.h"
27 : : #include "rust-system.h"
28 : :
29 : : namespace Rust {
30 : : namespace AST {
31 : : /* Pure abstract class that provides an interface for accessing different
32 : : * classes of the AST. */
33 : 473446 : class ASTVisitor
34 : : {
35 : : public:
36 : : // only concrete class overloads are required
37 : :
38 : : // rust-ast.h
39 : : // virtual void visit(AttrInput& attr_input) = 0;
40 : : // virtual void visit(TokenTree& token_tree) = 0;
41 : : // virtual void visit(MacroMatch& macro_match) = 0;
42 : : virtual void visit (Token &tok) = 0;
43 : : virtual void visit (DelimTokenTree &delim_tok_tree) = 0;
44 : : virtual void visit (AttrInputMetaItemContainer &input) = 0;
45 : : // virtual void visit(MetaItem& meta_item) = 0;
46 : : // virtual void visit(Stmt& stmt) = 0;
47 : : // virtual void visit(Expr& expr) = 0;
48 : : virtual void visit (IdentifierExpr &ident_expr) = 0;
49 : : // virtual void visit(Pattern& pattern) = 0;
50 : : // virtual void visit(Type& type) = 0;
51 : : // virtual void visit(TypeParamBound& type_param_bound) = 0;
52 : : virtual void visit (Lifetime &lifetime) = 0;
53 : : // virtual void visit(GenericParam& generic_param) = 0;
54 : : virtual void visit (LifetimeParam &lifetime_param) = 0;
55 : : virtual void visit (ConstGenericParam &const_param) = 0;
56 : : // virtual void visit(TraitItem& trait_item) = 0;
57 : : // virtual void visit(InherentImplItem& inherent_impl_item) = 0;
58 : : // virtual void visit(TraitImplItem& trait_impl_item) = 0;
59 : :
60 : : // rust-path.h
61 : : virtual void visit (PathInExpression &path) = 0;
62 : : virtual void visit (TypePathSegment &segment) = 0;
63 : : virtual void visit (TypePathSegmentGeneric &segment) = 0;
64 : : virtual void visit (TypePathSegmentFunction &segment) = 0;
65 : : virtual void visit (TypePath &path) = 0;
66 : : virtual void visit (QualifiedPathInExpression &path) = 0;
67 : : virtual void visit (QualifiedPathInType &path) = 0;
68 : :
69 : : // rust-expr.h
70 : : virtual void visit (LiteralExpr &expr) = 0;
71 : : virtual void visit (AttrInputLiteral &attr_input) = 0;
72 : : virtual void visit (AttrInputMacro &attr_input) = 0;
73 : : virtual void visit (MetaItemLitExpr &meta_item) = 0;
74 : : virtual void visit (MetaItemPathLit &meta_item) = 0;
75 : : virtual void visit (BorrowExpr &expr) = 0;
76 : : virtual void visit (DereferenceExpr &expr) = 0;
77 : : virtual void visit (ErrorPropagationExpr &expr) = 0;
78 : : virtual void visit (NegationExpr &expr) = 0;
79 : : virtual void visit (ArithmeticOrLogicalExpr &expr) = 0;
80 : : virtual void visit (ComparisonExpr &expr) = 0;
81 : : virtual void visit (LazyBooleanExpr &expr) = 0;
82 : : virtual void visit (TypeCastExpr &expr) = 0;
83 : : virtual void visit (AssignmentExpr &expr) = 0;
84 : : virtual void visit (CompoundAssignmentExpr &expr) = 0;
85 : : virtual void visit (GroupedExpr &expr) = 0;
86 : : // virtual void visit(ArrayElems& elems) = 0;
87 : : virtual void visit (ArrayElemsValues &elems) = 0;
88 : : virtual void visit (ArrayElemsCopied &elems) = 0;
89 : : virtual void visit (ArrayExpr &expr) = 0;
90 : : virtual void visit (ArrayIndexExpr &expr) = 0;
91 : : virtual void visit (TupleExpr &expr) = 0;
92 : : virtual void visit (TupleIndexExpr &expr) = 0;
93 : : virtual void visit (StructExprStruct &expr) = 0;
94 : : // virtual void visit(StructExprField& field) = 0;
95 : : virtual void visit (StructExprFieldIdentifier &field) = 0;
96 : : virtual void visit (StructExprFieldIdentifierValue &field) = 0;
97 : : virtual void visit (StructExprFieldIndexValue &field) = 0;
98 : : virtual void visit (StructExprStructFields &expr) = 0;
99 : : virtual void visit (StructExprStructBase &expr) = 0;
100 : : virtual void visit (CallExpr &expr) = 0;
101 : : virtual void visit (MethodCallExpr &expr) = 0;
102 : : virtual void visit (FieldAccessExpr &expr) = 0;
103 : : virtual void visit (ClosureExprInner &expr) = 0;
104 : : virtual void visit (BlockExpr &expr) = 0;
105 : : virtual void visit (ClosureExprInnerTyped &expr) = 0;
106 : : virtual void visit (ContinueExpr &expr) = 0;
107 : : virtual void visit (BreakExpr &expr) = 0;
108 : : virtual void visit (RangeFromToExpr &expr) = 0;
109 : : virtual void visit (RangeFromExpr &expr) = 0;
110 : : virtual void visit (RangeToExpr &expr) = 0;
111 : : virtual void visit (RangeFullExpr &expr) = 0;
112 : : virtual void visit (RangeFromToInclExpr &expr) = 0;
113 : : virtual void visit (RangeToInclExpr &expr) = 0;
114 : : virtual void visit (ReturnExpr &expr) = 0;
115 : : virtual void visit (UnsafeBlockExpr &expr) = 0;
116 : : virtual void visit (LoopExpr &expr) = 0;
117 : : virtual void visit (WhileLoopExpr &expr) = 0;
118 : : virtual void visit (WhileLetLoopExpr &expr) = 0;
119 : : virtual void visit (ForLoopExpr &expr) = 0;
120 : : virtual void visit (IfExpr &expr) = 0;
121 : : virtual void visit (IfExprConseqElse &expr) = 0;
122 : : virtual void visit (IfLetExpr &expr) = 0;
123 : : virtual void visit (IfLetExprConseqElse &expr) = 0;
124 : : // virtual void visit(MatchCase& match_case) = 0;
125 : : // virtual void visit (MatchCaseBlockExpr &match_case) = 0;
126 : : // virtual void visit (MatchCaseExpr &match_case) = 0;
127 : : virtual void visit (MatchExpr &expr) = 0;
128 : : virtual void visit (AwaitExpr &expr) = 0;
129 : : virtual void visit (AsyncBlockExpr &expr) = 0;
130 : :
131 : : // rust-item.h
132 : : virtual void visit (TypeParam ¶m) = 0;
133 : : virtual void visit (SelfParam ¶m) = 0;
134 : : virtual void visit (FunctionParam ¶m) = 0;
135 : : virtual void visit (VariadicParam ¶m) = 0;
136 : :
137 : : // virtual void visit(WhereClauseItem& item) = 0;
138 : : virtual void visit (LifetimeWhereClauseItem &item) = 0;
139 : : virtual void visit (TypeBoundWhereClauseItem &item) = 0;
140 : : virtual void visit (Module &module) = 0;
141 : : virtual void visit (ExternCrate &crate) = 0;
142 : : // virtual void visit(UseTree& use_tree) = 0;
143 : : virtual void visit (UseTreeGlob &use_tree) = 0;
144 : : virtual void visit (UseTreeList &use_tree) = 0;
145 : : virtual void visit (UseTreeRebind &use_tree) = 0;
146 : : virtual void visit (UseDeclaration &use_decl) = 0;
147 : : virtual void visit (Function &function) = 0;
148 : : virtual void visit (TypeAlias &type_alias) = 0;
149 : : virtual void visit (StructStruct &struct_item) = 0;
150 : : virtual void visit (TupleStruct &tuple_struct) = 0;
151 : : virtual void visit (EnumItem &item) = 0;
152 : : virtual void visit (EnumItemTuple &item) = 0;
153 : : virtual void visit (EnumItemStruct &item) = 0;
154 : : virtual void visit (EnumItemDiscriminant &item) = 0;
155 : : virtual void visit (Enum &enum_item) = 0;
156 : : virtual void visit (Union &union_item) = 0;
157 : : virtual void visit (ConstantItem &const_item) = 0;
158 : : virtual void visit (StaticItem &static_item) = 0;
159 : : virtual void visit (TraitItemConst &item) = 0;
160 : : virtual void visit (TraitItemType &item) = 0;
161 : : virtual void visit (Trait &trait) = 0;
162 : : virtual void visit (InherentImpl &impl) = 0;
163 : : virtual void visit (TraitImpl &impl) = 0;
164 : : // virtual void visit(ExternalItem& item) = 0;
165 : : virtual void visit (ExternalTypeItem &type) = 0;
166 : : virtual void visit (ExternalStaticItem &item) = 0;
167 : : virtual void visit (ExternalFunctionItem &item) = 0;
168 : : virtual void visit (ExternBlock &block) = 0;
169 : :
170 : : // rust-macro.h
171 : : virtual void visit (MacroMatchFragment &match) = 0;
172 : : virtual void visit (MacroMatchRepetition &match) = 0;
173 : : virtual void visit (MacroMatcher &matcher) = 0;
174 : : virtual void visit (MacroRulesDefinition &rules_def) = 0;
175 : : virtual void visit (MacroInvocation ¯o_invoc) = 0;
176 : : virtual void visit (MetaItemPath &meta_item) = 0;
177 : : virtual void visit (MetaItemSeq &meta_item) = 0;
178 : : virtual void visit (MetaWord &meta_item) = 0;
179 : : virtual void visit (MetaNameValueStr &meta_item) = 0;
180 : : virtual void visit (MetaListPaths &meta_item) = 0;
181 : : virtual void visit (MetaListNameValueStr &meta_item) = 0;
182 : :
183 : : // rust-pattern.h
184 : : virtual void visit (LiteralPattern &pattern) = 0;
185 : : virtual void visit (IdentifierPattern &pattern) = 0;
186 : : virtual void visit (WildcardPattern &pattern) = 0;
187 : : virtual void visit (RestPattern &pattern) = 0;
188 : : // virtual void visit(RangePatternBound& bound) = 0;
189 : : virtual void visit (RangePatternBoundLiteral &bound) = 0;
190 : : virtual void visit (RangePatternBoundPath &bound) = 0;
191 : : virtual void visit (RangePatternBoundQualPath &bound) = 0;
192 : : virtual void visit (RangePattern &pattern) = 0;
193 : : virtual void visit (ReferencePattern &pattern) = 0;
194 : : // virtual void visit(StructPatternField& field) = 0;
195 : : virtual void visit (StructPatternFieldTuplePat &field) = 0;
196 : : virtual void visit (StructPatternFieldIdentPat &field) = 0;
197 : : virtual void visit (StructPatternFieldIdent &field) = 0;
198 : : virtual void visit (StructPattern &pattern) = 0;
199 : : // virtual void visit(TupleStructItems& tuple_items) = 0;
200 : : virtual void visit (TupleStructItemsNoRange &tuple_items) = 0;
201 : : virtual void visit (TupleStructItemsRange &tuple_items) = 0;
202 : : virtual void visit (TupleStructPattern &pattern) = 0;
203 : : // virtual void visit(TuplePatternItems& tuple_items) = 0;
204 : : virtual void visit (TuplePatternItemsMultiple &tuple_items) = 0;
205 : : virtual void visit (TuplePatternItemsRanged &tuple_items) = 0;
206 : : virtual void visit (TuplePattern &pattern) = 0;
207 : : virtual void visit (GroupedPattern &pattern) = 0;
208 : : virtual void visit (SlicePattern &pattern) = 0;
209 : : virtual void visit (AltPattern &pattern) = 0;
210 : :
211 : : // rust-stmt.h
212 : : virtual void visit (EmptyStmt &stmt) = 0;
213 : : virtual void visit (LetStmt &stmt) = 0;
214 : : virtual void visit (ExprStmt &stmt) = 0;
215 : :
216 : : // rust-type.h
217 : : virtual void visit (TraitBound &bound) = 0;
218 : : virtual void visit (ImplTraitType &type) = 0;
219 : : virtual void visit (TraitObjectType &type) = 0;
220 : : virtual void visit (ParenthesisedType &type) = 0;
221 : : virtual void visit (ImplTraitTypeOneBound &type) = 0;
222 : : virtual void visit (TraitObjectTypeOneBound &type) = 0;
223 : : virtual void visit (TupleType &type) = 0;
224 : : virtual void visit (NeverType &type) = 0;
225 : : virtual void visit (RawPointerType &type) = 0;
226 : : virtual void visit (ReferenceType &type) = 0;
227 : : virtual void visit (ArrayType &type) = 0;
228 : : virtual void visit (SliceType &type) = 0;
229 : : virtual void visit (InferredType &type) = 0;
230 : : virtual void visit (BareFunctionType &type) = 0;
231 : :
232 : : // TODO: rust-cond-compilation.h visiting? not currently used
233 : : };
234 : :
235 : 23030 : class DefaultASTVisitor : public ASTVisitor
236 : : {
237 : : public:
238 : : virtual void visit (AST::Crate &crate);
239 : :
240 : : protected:
241 : : virtual void visit (AST::Token &tok) override;
242 : : virtual void visit (AST::DelimTokenTree &delim_tok_tree) override;
243 : : virtual void visit (AST::AttrInputMetaItemContainer &input) override;
244 : : virtual void visit (AST::IdentifierExpr &ident_expr) override;
245 : : virtual void visit (AST::Lifetime &lifetime) override;
246 : : virtual void visit (AST::LifetimeParam &lifetime_param) override;
247 : : virtual void visit (AST::ConstGenericParam &const_param) override;
248 : : virtual void visit (AST::PathInExpression &path) override;
249 : : virtual void visit (AST::TypePathSegment &segment) override;
250 : : virtual void visit (AST::TypePathSegmentGeneric &segment) override;
251 : : virtual void visit (AST::TypePathSegmentFunction &segment) override;
252 : : virtual void visit (AST::TypePath &path) override;
253 : : virtual void visit (AST::QualifiedPathInExpression &path) override;
254 : : virtual void visit (AST::QualifiedPathInType &path) override;
255 : : virtual void visit (AST::LiteralExpr &expr) override;
256 : : virtual void visit (AST::AttrInputLiteral &attr_input) override;
257 : : virtual void visit (AST::AttrInputMacro &attr_input) override;
258 : : virtual void visit (AST::MetaItemLitExpr &meta_item) override;
259 : : virtual void visit (AST::MetaItemPathLit &meta_item) override;
260 : : virtual void visit (AST::BorrowExpr &expr) override;
261 : : virtual void visit (AST::DereferenceExpr &expr) override;
262 : : virtual void visit (AST::ErrorPropagationExpr &expr) override;
263 : : virtual void visit (AST::NegationExpr &expr) override;
264 : : virtual void visit (AST::ArithmeticOrLogicalExpr &expr) override;
265 : : virtual void visit (AST::ComparisonExpr &expr) override;
266 : : virtual void visit (AST::LazyBooleanExpr &expr) override;
267 : : virtual void visit (AST::TypeCastExpr &expr) override;
268 : : virtual void visit (AST::AssignmentExpr &expr) override;
269 : : virtual void visit (AST::CompoundAssignmentExpr &expr) override;
270 : : virtual void visit (AST::GroupedExpr &expr) override;
271 : : virtual void visit (AST::ArrayElemsValues &elems) override;
272 : : virtual void visit (AST::ArrayElemsCopied &elems) override;
273 : : virtual void visit (AST::ArrayExpr &expr) override;
274 : : virtual void visit (AST::ArrayIndexExpr &expr) override;
275 : : virtual void visit (AST::TupleExpr &expr) override;
276 : : virtual void visit (AST::TupleIndexExpr &expr) override;
277 : : virtual void visit (AST::StructExprStruct &expr) override;
278 : : virtual void visit (AST::StructExprFieldIdentifier &field) override;
279 : : virtual void visit (AST::StructExprFieldIdentifierValue &field) override;
280 : : virtual void visit (AST::StructExprFieldIndexValue &field) override;
281 : : virtual void visit (AST::StructExprStructFields &expr) override;
282 : : virtual void visit (AST::StructExprStructBase &expr) override;
283 : : virtual void visit (AST::CallExpr &expr) override;
284 : : virtual void visit (AST::MethodCallExpr &expr) override;
285 : : virtual void visit (AST::FieldAccessExpr &expr) override;
286 : : virtual void visit (AST::ClosureExprInner &expr) override;
287 : : virtual void visit (AST::BlockExpr &expr) override;
288 : : virtual void visit (AST::ClosureExprInnerTyped &expr) override;
289 : : virtual void visit (AST::ContinueExpr &expr) override;
290 : : virtual void visit (AST::BreakExpr &expr) override;
291 : : virtual void visit (AST::RangeFromToExpr &expr) override;
292 : : virtual void visit (AST::RangeFromExpr &expr) override;
293 : : virtual void visit (AST::RangeToExpr &expr) override;
294 : : virtual void visit (AST::RangeFullExpr &expr) override;
295 : : virtual void visit (AST::RangeFromToInclExpr &expr) override;
296 : : virtual void visit (AST::RangeToInclExpr &expr) override;
297 : : virtual void visit (AST::ReturnExpr &expr) override;
298 : : virtual void visit (AST::UnsafeBlockExpr &expr) override;
299 : : virtual void visit (AST::LoopExpr &expr) override;
300 : : virtual void visit (AST::WhileLoopExpr &expr) override;
301 : : virtual void visit (AST::WhileLetLoopExpr &expr) override;
302 : : virtual void visit (AST::ForLoopExpr &expr) override;
303 : : virtual void visit (AST::IfExpr &expr) override;
304 : : virtual void visit (AST::IfExprConseqElse &expr) override;
305 : : virtual void visit (AST::IfLetExpr &expr) override;
306 : : virtual void visit (AST::IfLetExprConseqElse &expr) override;
307 : : virtual void visit (AST::MatchExpr &expr) override;
308 : : virtual void visit (AST::AwaitExpr &expr) override;
309 : : virtual void visit (AST::AsyncBlockExpr &expr) override;
310 : : virtual void visit (AST::TypeParam ¶m) override;
311 : : virtual void visit (AST::LifetimeWhereClauseItem &item) override;
312 : : virtual void visit (AST::TypeBoundWhereClauseItem &item) override;
313 : : virtual void visit (AST::Module &module) override;
314 : : virtual void visit (AST::ExternCrate &crate) override;
315 : : virtual void visit (AST::UseTreeGlob &use_tree) override;
316 : : virtual void visit (AST::UseTreeList &use_tree) override;
317 : : virtual void visit (AST::UseTreeRebind &use_tree) override;
318 : : virtual void visit (AST::UseDeclaration &use_decl) override;
319 : : virtual void visit (AST::Function &function) override;
320 : : virtual void visit (AST::TypeAlias &type_alias) override;
321 : : virtual void visit (AST::StructStruct &struct_item) override;
322 : : virtual void visit (AST::TupleStruct &tuple_struct) override;
323 : : virtual void visit (AST::EnumItem &item) override;
324 : : virtual void visit (AST::EnumItemTuple &item) override;
325 : : virtual void visit (AST::EnumItemStruct &item) override;
326 : : virtual void visit (AST::EnumItemDiscriminant &item) override;
327 : : virtual void visit (AST::Enum &enum_item) override;
328 : : virtual void visit (AST::Union &union_item) override;
329 : : virtual void visit (AST::ConstantItem &const_item) override;
330 : : virtual void visit (AST::StaticItem &static_item) override;
331 : : virtual void visit (AST::TraitItemConst &item) override;
332 : : virtual void visit (AST::TraitItemType &item) override;
333 : : virtual void visit (AST::Trait &trait) override;
334 : : virtual void visit (AST::InherentImpl &impl) override;
335 : : virtual void visit (AST::TraitImpl &impl) override;
336 : : virtual void visit (AST::ExternalTypeItem &item) override;
337 : : virtual void visit (AST::ExternalStaticItem &item) override;
338 : : virtual void visit (AST::ExternalFunctionItem &item) override;
339 : : virtual void visit (AST::ExternBlock &block) override;
340 : : virtual void visit (AST::MacroMatchFragment &match) override;
341 : : virtual void visit (AST::MacroMatchRepetition &match) override;
342 : : virtual void visit (AST::MacroMatcher &matcher) override;
343 : : virtual void visit (AST::MacroRulesDefinition &rules_def) override;
344 : : virtual void visit (AST::MacroInvocation ¯o_invoc) override;
345 : : virtual void visit (AST::MetaItemPath &meta_item) override;
346 : : virtual void visit (AST::MetaItemSeq &meta_item) override;
347 : : virtual void visit (AST::MetaWord &meta_item) override;
348 : : virtual void visit (AST::MetaNameValueStr &meta_item) override;
349 : : virtual void visit (AST::MetaListPaths &meta_item) override;
350 : : virtual void visit (AST::MetaListNameValueStr &meta_item) override;
351 : : virtual void visit (AST::LiteralPattern &pattern) override;
352 : : virtual void visit (AST::IdentifierPattern &pattern) override;
353 : : virtual void visit (AST::WildcardPattern &pattern) override;
354 : : virtual void visit (AST::RestPattern &pattern) override;
355 : : virtual void visit (AST::RangePatternBoundLiteral &bound) override;
356 : : virtual void visit (AST::RangePatternBoundPath &bound) override;
357 : : virtual void visit (AST::RangePatternBoundQualPath &bound) override;
358 : : virtual void visit (AST::RangePattern &pattern) override;
359 : : virtual void visit (AST::ReferencePattern &pattern) override;
360 : : virtual void visit (AST::StructPatternFieldTuplePat &field) override;
361 : : virtual void visit (AST::StructPatternFieldIdentPat &field) override;
362 : : virtual void visit (AST::StructPatternFieldIdent &field) override;
363 : : virtual void visit (AST::StructPattern &pattern) override;
364 : : virtual void visit (AST::TupleStructItemsNoRange &tuple_items) override;
365 : : virtual void visit (AST::TupleStructItemsRange &tuple_items) override;
366 : : virtual void visit (AST::TupleStructPattern &pattern) override;
367 : : virtual void visit (AST::TuplePatternItemsMultiple &tuple_items) override;
368 : : virtual void visit (AST::TuplePatternItemsRanged &tuple_items) override;
369 : : virtual void visit (AST::TuplePattern &pattern) override;
370 : : virtual void visit (AST::GroupedPattern &pattern) override;
371 : : virtual void visit (AST::SlicePattern &pattern) override;
372 : : virtual void visit (AST::AltPattern &pattern) override;
373 : : virtual void visit (AST::EmptyStmt &stmt) override;
374 : : virtual void visit (AST::LetStmt &stmt) override;
375 : : virtual void visit (AST::ExprStmt &stmt) override;
376 : : virtual void visit (AST::TraitBound &bound) override;
377 : : virtual void visit (AST::ImplTraitType &type) override;
378 : : virtual void visit (AST::TraitObjectType &type) override;
379 : : virtual void visit (AST::ParenthesisedType &type) override;
380 : : virtual void visit (AST::ImplTraitTypeOneBound &type) override;
381 : : virtual void visit (AST::TraitObjectTypeOneBound &type) override;
382 : : virtual void visit (AST::TupleType &type) override;
383 : : virtual void visit (AST::NeverType &type) override;
384 : : virtual void visit (AST::RawPointerType &type) override;
385 : : virtual void visit (AST::ReferenceType &type) override;
386 : : virtual void visit (AST::ArrayType &type) override;
387 : : virtual void visit (AST::SliceType &type) override;
388 : : virtual void visit (AST::InferredType &type) override;
389 : : virtual void visit (AST::BareFunctionType &type) override;
390 : : virtual void visit (AST::SelfParam &self) override;
391 : : virtual void visit (AST::FunctionParam ¶m) override;
392 : : virtual void visit (AST::VariadicParam ¶m) override;
393 : :
394 : 2001 : template <typename T> void visit (T &node) { node.accept_vis (*this); }
395 : :
396 : 3116344 : template <typename T> void visit (std::unique_ptr<T> &node)
397 : : {
398 : 3124007 : node->accept_vis (*this);
399 : 201378 : }
400 : :
401 : : virtual void visit (AST::GenericArgsBinding &binding);
402 : : virtual void visit (AST::PathExprSegment &segment);
403 : : virtual void visit (AST::GenericArgs &args);
404 : : virtual void visit (AST::QualifiedPathType &path);
405 : : virtual void visit (AST::TypePathFunction &tpf);
406 : : virtual void visit (AST::PathIdentSegment &segment);
407 : : virtual void visit (AST::SimplePath &path);
408 : : virtual void visit (AST::SimplePathSegment &segment);
409 : : virtual void visit (AST::StructBase &base);
410 : : virtual void visit (AST::ClosureParam ¶m);
411 : : virtual void visit (AST::LoopLabel &label);
412 : : virtual void visit (AST::MatchCase &arm);
413 : : virtual void visit (AST::MatchArm &arm);
414 : : virtual void visit (AST::Visibility &vis);
415 : : virtual void visit (AST::FunctionQualifiers &qualifiers);
416 : : virtual void visit (AST::WhereClause &where);
417 : : virtual void visit (AST::StructField &field);
418 : : virtual void visit (AST::TupleField &field);
419 : : virtual void visit (AST::NamedFunctionParam ¶m);
420 : : virtual void visit (AST::MacroRule &rule);
421 : : virtual void visit (AST::MacroInvocData &data);
422 : : virtual void visit (AST::MacroTranscriber &transcriber);
423 : : virtual void visit (AST::StructPatternElements &spe);
424 : : virtual void visit (AST::MaybeNamedParam ¶m);
425 : : void visit (AST::Attribute &attribute) {}
426 : :
427 : 97127 : template <typename T> void visit_outer_attrs (T &node)
428 : : {
429 : 1556766 : for (auto &attr : node.get_outer_attrs ())
430 : : visit (attr);
431 : : }
432 : :
433 : 71479 : template <typename T> void visit_inner_attrs (T &node)
434 : : {
435 : 86823 : for (auto &attr : node.get_inner_attrs ())
436 : : visit (attr);
437 : : }
438 : : };
439 : :
440 : 3599 : class ContextualASTVisitor : public DefaultASTVisitor
441 : : {
442 : : protected:
443 : : enum class Context
444 : : {
445 : : FUNCTION,
446 : : INHERENT_IMPL,
447 : : TRAIT_IMPL,
448 : : TRAIT,
449 : : MODULE,
450 : : CRATE,
451 : : };
452 : : using DefaultASTVisitor::visit;
453 : :
454 : : virtual void visit (AST::Crate &crate) override;
455 : :
456 : : virtual void visit (AST::InherentImpl &impl) override;
457 : :
458 : : virtual void visit (AST::TraitImpl &impl) override;
459 : :
460 : : virtual void visit (AST::Trait &trait) override;
461 : :
462 : : template <typename T> void visit (T &item)
463 : : {
464 : : DefaultASTVisitor::visit (item);
465 : : }
466 : :
467 : : std::vector<Context> context;
468 : :
469 : 8808 : void push_context (Context ctx) { context.push_back (ctx); }
470 : :
471 : 8808 : void pop_context () { context.pop_back (); }
472 : : };
473 : :
474 : : } // namespace AST
475 : : } // namespace Rust
476 : :
477 : : #endif
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