GCC Code Coverage Report

Directory: ../
Coverage: low: ≥ 0% medium: ≥ 75.0% high: ≥ 90.0%
Coverage Exec / Excl / Total
Lines: 100.0% 132 / 0 / 132
Functions: 100.0% 4 / 0 / 4
Branches: 65.9% 162 / 0 / 246
src/typechecker/TypeCheckerTopLevelDefinitionsCheck.cpp
Line Branch Exec Source
1 // Copyright (c) 2021-2026 ChilliBits. All rights reserved.
2
3 #include "TypeChecker.h"
4
5 #include <SourceFile.h>
6 #include <ast/ASTNodes.h>
7 #include <exception/SemanticError.h>
8 #include <model/Interface.h>
9 #include <symboltablebuilder/Scope.h>
10 #include <symboltablebuilder/SymbolTableBuilder.h>
11 #include <typechecker/FunctionManager.h>
12 #include <typechecker/TypeMatcher.h>
13
14 namespace spice::compiler {
15
16 512 std::any TypeChecker::visitMainFctDefCheck(MainFctDefNode *node) {
17 // Skip if already type-checked
18
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 512 if (typeCheckedMainFct)
19
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 116 return nullptr;
20
21 454 node->resizeToNumberOfManifestations(1);
22
23 // Change to function body scope
24 454 currentScope = node->bodyScope;
25 // Visit statements in new scope
26
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 454 visit(node->body);
27 // Leave main function body scope
28 424 currentScope = rootScope;
29
30 // Set to type-checked
31 424 typeCheckedMainFct = true;
32
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 848 return nullptr;
33 }
34
35 25467 std::any TypeChecker::visitFctDefCheck(FctDefNode *node) {
36 25467 node->resizeToNumberOfManifestations(node->manifestations.size());
37 25467 manIdx = 0; // Reset the manifestation index
38
39 // Get all manifestations for this function definition
40
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 83700 for (Function *manifestation : node->manifestations) {
41 // Skip non-substantiated or already checked functions
42
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 32768 if (!manifestation->isFullySubstantiated() || manifestation->alreadyTypeChecked) {
43 21356 manIdx++; // Increase the manifestation index
44 21356 continue;
45 }
46
47 // Change scope to concrete struct specialization scope
48
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 11412 if (node->isMethod) {
49
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 5285 const std::string &scopeName = Struct::getScopeName(node->name->structName, manifestation->thisType.getTemplateTypes());
50
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 5285 changeToScope(scopeName, ScopeType::STRUCT);
51 5285 }
52
53 // Change to function scope
54
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 11412 changeToScope(manifestation->bodyScope, ScopeType::FUNC_PROC_BODY);
55
56 // Mount type mapping for this manifestation
57
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 11412 assert(typeMapping.empty());
58
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 11412 typeMapping = manifestation->typeMapping;
59
60 // Set return type to the result variable
61
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 34236 SymbolTableEntry *resultVarEntry = currentScope->lookupStrict(RETURN_VARIABLE_NAME);
62
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 11412 assert(resultVarEntry != nullptr);
63
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 11412 resultVarEntry->updateType(manifestation->returnType, false);
64 11412 resultVarEntry->used = true;
65
66 // Visit parameters
67 // This happens once in the type checker prepare stage. This second time is only required if we have a generic function
68
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 11412 if (node->hasParams)
69
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 8793 visit(node->paramLst);
70
71 // Visit statements in new scope
72
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 11412 visit(node->body);
73
74 // Clear type mapping
75 11410 typeMapping.clear();
76
77 // Change to root scope
78 11410 currentScope = rootScope;
79
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 11410 assert(currentScope->type == ScopeType::GLOBAL);
80
81 // Do not type-check this manifestation again
82 11410 manifestation->alreadyTypeChecked = true;
83
84 11410 manIdx++; // Increase the manifestation index
85 }
86 25465 manIdx = 0; // Reset the manifestation index
87
88
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 50930 return nullptr;
89 }
90
91 14146 std::any TypeChecker::visitProcDefCheck(ProcDefNode *node) {
92 14146 node->resizeToNumberOfManifestations(node->manifestations.size());
93 14146 manIdx = 0; // Reset the manifestation index
94
95 // Get all manifestations for this procedure definition
96
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 47606 for (Function *manifestation : node->manifestations) {
97 // Skip non-substantiated or already checked procedures
98
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 19314 if (!manifestation->isFullySubstantiated() || manifestation->alreadyTypeChecked) {
99 13345 manIdx++; // Increase the manifestation index
100 13345 continue;
101 }
102
103 // Change scope to concrete struct specialization scope
104
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 5969 if (node->isMethod) {
105
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 4683 const std::string &scopeName = Struct::getScopeName(node->name->structName, manifestation->thisType.getTemplateTypes());
106
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 4683 changeToScope(scopeName, ScopeType::STRUCT);
107 4683 }
108
109 // Change to procedure scope
110
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 5969 changeToScope(manifestation->bodyScope, ScopeType::FUNC_PROC_BODY);
111
112 // Mount type mapping for this manifestation
113
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 5969 assert(typeMapping.empty());
114
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 5969 typeMapping = manifestation->typeMapping;
115
116 // Visit parameters
117 // This happens once in the type checker prepare stage. This second time is only required if we have a generic procedure
118
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 5969 if (node->hasParams)
119
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 4488 visit(node->paramLst);
120
121 // Prepare generation of special ctor preamble to store VTable, default field values, etc. if required
122
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 5969 if (node->isCtor)
123
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 2348 createCtorBodyPreamble(node->scope);
124
125 // Visit statements in new scope
126
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 5969 visit(node->body);
127
128 // Clear type mapping
129 5969 typeMapping.clear();
130
131 // Change to root scope
132 5969 currentScope = rootScope;
133
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 5969 assert(currentScope != nullptr && currentScope->type == ScopeType::GLOBAL);
134
135 // Do not type-check this manifestation again
136 5969 manifestation->alreadyTypeChecked = true;
137
138 5969 manIdx++; // Increase the manifestation index
139 }
140 14146 manIdx = 0; // Reset the manifestation index
141
142
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 28292 return nullptr;
143 }
144
145 2224 std::any TypeChecker::visitStructDefCheck(StructDefNode *node) {
146 2224 node->resizeToNumberOfManifestations(node->structManifestations.size());
147 2224 manIdx = 0; // Reset the manifestation index
148
149 // Get all manifestations for this procedure definition
150
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 8350 for (const Struct *manifestation : node->structManifestations) {
151 // Skip non-substantiated or already checked procedures
152
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 3902 if (!manifestation->isFullySubstantiated()) {
153 1092 manIdx++; // Increase the manifestation index
154 1092 continue;
155 }
156
157 // Change to struct scope
158
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 2810 changeToScope(manifestation->scope, ScopeType::STRUCT);
159
160 // Mount type mapping for this manifestation, so that the body preamble helpers below can substantiate
161 // generic field types (e.g. `heap T*` on `Vector<T>`). Without this, an auto-generated body preamble that
162 // touches a still-generic field would assert in TypeMatcher::substantiateTypeWithTypeMapping.
163
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 2810 assert(typeMapping.empty());
164
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 2810 typeMapping = manifestation->typeMapping;
165
166 // Re-visit all default values. This is required, since the type of the default value might vary for different manifestations
167
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 11902 for (const FieldNode *field : node->fields) {
168
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 6282 if (field->defaultValue != nullptr) {
169
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 1290 visit(field->defaultValue);
170
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 1290 SymbolTableEntry *fieldEntry = manifestation->scope->lookupStrict(field->fieldName);
171
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 1290 assert(fieldEntry != nullptr);
172
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 1290 fieldEntry->updateState(INITIALIZED, field);
173 }
174 }
175
176 // Build struct type
177
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 2810 const QualType structType = manifestation->entry->getQualType();
178
179 // Check if the struct implements all methods of all attached interfaces
180 2810 size_t vtableIndex = 0;
181
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 6486 for (const QualType &interfaceType : manifestation->interfaceTypes) {
182
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 866 const Interface *interface = interfaceType.getInterface(node);
183
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 866 assert(interface != nullptr);
184
185 // Check for all methods, that it is implemented by the struct
186
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 3896 for (const Function *expMethod : interface->methods) {
187
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 2164 const std::string methodName = expMethod->name;
188
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 2164 QualTypeList params = expMethod->getParamTypes();
189 2164 QualType returnType = expMethod->returnType;
190
191 // Substantiate param and return types
192
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 2164 TypeMatcher::substantiateTypesWithTypeMapping(params, interface->typeMapping, node);
193
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 2164 if (returnType.hasAnyGenericParts())
194
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 1260 TypeMatcher::substantiateTypeWithTypeMapping(returnType, interface->typeMapping, node);
195
196 // Build args list
197 2164 ArgList args;
198
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 2164 args.reserve(params.size());
199
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 4342 for (const QualType &param : params)
200
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 14 args.emplace_back(param, nullptr);
201
202 // Search for method that has the required signature
203
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 2164 Function *spiceFunction = FunctionManager::match(currentScope, methodName, structType, args, {}, true, node);
204
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 2164 if (spiceFunction == nullptr) {
205
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 4 softError(node, INTERFACE_METHOD_NOT_IMPLEMENTED,
206
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 8 "The struct '" + node->structName + "' does not implement method '" + expMethod->getSignature() + "'.");
207 4 continue;
208 }
209
210 // Check return type
211
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 2562 if (spiceFunction->returnType != returnType &&
212
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 402 !returnType.matchesInterfaceImplementedByStruct(spiceFunction->returnType)) {
213
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 2 softError(node, INTERFACE_METHOD_NOT_IMPLEMENTED,
214
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 4 "The struct '" + node->structName + "' does not implement method '" + expMethod->getSignature() +
215
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 2 "'. The return type does not match.");
216 2 continue;
217 }
218 // Set to virtual, since it overrides the interface method
219 2158 spiceFunction->isVirtual = true;
220 2158 spiceFunction->vtableIndex = vtableIndex++;
221
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 6492 }
222 }
223
224 // Check default ctor body if required
225
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 8430 const Function *ctorFunc = FunctionManager::lookup(currentScope, CTOR_FUNCTION_NAME, structType, {}, true);
226
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 2810 if (ctorFunc != nullptr && ctorFunc->implicitDefault) {
227
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 168 createCtorBodyPreamble(ctorFunc->bodyScope);
228
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 168 assert(manifestation->areAllFieldsInitialized() == nullptr);
229 }
230
231 // Check default copy ctor body if required
232
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 8430 const ArgList args = {{structType.toConstRef(node), false /* always non-temporary */}};
233
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 2810 const Function *copyCtorFunc = FunctionManager::lookup(currentScope, CTOR_FUNCTION_NAME, structType, args, true);
234
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 2810 if (copyCtorFunc != nullptr && copyCtorFunc->implicitDefault) {
235
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 231 createCopyCtorBodyPreamble(copyCtorFunc->bodyScope);
236
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 231 assert(manifestation->areAllFieldsInitialized() == nullptr);
237 }
238
239 // Check default move ctor body if required. findMoveCtor scans the manifestations directly to avoid the
240 // constify-based false-positive that FunctionManager::lookup with a non-const ref arg can produce.
241
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 2810 if (const Function *moveCtorFunc = FunctionManager::findMoveCtor(currentScope); moveCtorFunc && moveCtorFunc->implicitDefault) {
242
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 17 createMoveCtorBodyPreamble(moveCtorFunc->bodyScope);
243
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 17 assert(manifestation->areAllFieldsInitialized() == nullptr);
244 }
245
246 // Check default dtor body if required
247
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 8430 const Function *dtorFunc = FunctionManager::lookup(currentScope, DTOR_FUNCTION_NAME, structType, {}, true);
248
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 2810 if (dtorFunc != nullptr && dtorFunc->implicitDefault)
249
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 529 createDtorBodyPreamble(dtorFunc->bodyScope);
250
251 // Reset field symbols to declared state for the next manifestation
252
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 2810 manifestation->resetFieldSymbolsToDeclared(node);
253
254 // Clear type mapping
255 2810 typeMapping.clear();
256
257 // Return to the root scope
258 2810 currentScope = rootScope;
259
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 2810 assert(currentScope != nullptr && currentScope->type == ScopeType::GLOBAL);
260
261 2810 manIdx++; // Increase the manifestation index
262 2810 }
263 2224 manIdx = 0; // Reset the manifestation index
264
265
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 4448 return nullptr;
266 }
267
268 } // namespace spice::compiler
269