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| 8 | |
| 9 | #include "TestVisitor.h" |
| 10 | #include "clang/AST/LexicallyOrderedRecursiveASTVisitor.h" |
| 11 | #include <stack> |
| 12 | |
| 13 | using namespace clang; |
| 14 | |
| 15 | namespace { |
| 16 | |
| 17 | class DummyMatchVisitor; |
| 18 | |
| 19 | class LexicallyOrderedDeclVisitor |
| 20 | : public LexicallyOrderedRecursiveASTVisitor<LexicallyOrderedDeclVisitor> { |
| 21 | public: |
| 22 | LexicallyOrderedDeclVisitor(DummyMatchVisitor &Matcher, |
| 23 | const SourceManager &SM, bool EmitDeclIndices, |
| 24 | bool EmitStmtIndices) |
| 25 | : LexicallyOrderedRecursiveASTVisitor(SM), Matcher(Matcher), |
| 26 | EmitDeclIndices(EmitDeclIndices), EmitStmtIndices(EmitStmtIndices) {} |
| 27 | |
| 28 | bool TraverseDecl(Decl *D) { |
| 29 | TraversalStack.push_back(D); |
| 30 | LexicallyOrderedRecursiveASTVisitor::TraverseDecl(D); |
| 31 | TraversalStack.pop_back(); |
| 32 | return true; |
| 33 | } |
| 34 | |
| 35 | bool TraverseStmt(Stmt *S); |
| 36 | |
| 37 | bool VisitNamedDecl(const NamedDecl *D); |
| 38 | bool VisitDeclRefExpr(const DeclRefExpr *D); |
| 39 | |
| 40 | private: |
| 41 | DummyMatchVisitor &Matcher; |
| 42 | bool EmitDeclIndices, EmitStmtIndices; |
| 43 | unsigned Index = 0; |
| 44 | llvm::SmallVector<Decl *, 8> TraversalStack; |
| 45 | }; |
| 46 | |
| 47 | class DummyMatchVisitor : public ExpectedLocationVisitor<DummyMatchVisitor> { |
| 48 | bool EmitDeclIndices, EmitStmtIndices; |
| 49 | |
| 50 | public: |
| 51 | DummyMatchVisitor(bool EmitDeclIndices = false, bool EmitStmtIndices = false) |
| 52 | : EmitDeclIndices(EmitDeclIndices), EmitStmtIndices(EmitStmtIndices) {} |
| 53 | bool VisitTranslationUnitDecl(TranslationUnitDecl *TU) { |
| 54 | const ASTContext &Context = TU->getASTContext(); |
| 55 | const SourceManager &SM = Context.getSourceManager(); |
| 56 | LexicallyOrderedDeclVisitor SubVisitor(*this, SM, EmitDeclIndices, |
| 57 | EmitStmtIndices); |
| 58 | SubVisitor.TraverseDecl(TU); |
| 59 | return false; |
| 60 | } |
| 61 | |
| 62 | template <class T> void match(StringRef Path, const T *D) { |
| 63 | Match(Path, D->getBeginLoc()); |
| 64 | } |
| 65 | }; |
| 66 | |
| 67 | bool LexicallyOrderedDeclVisitor::TraverseStmt(Stmt *S) { |
| 68 | Matcher.match("overridden TraverseStmt", S); |
| 69 | return LexicallyOrderedRecursiveASTVisitor::TraverseStmt(S); |
| 70 | } |
| 71 | |
| 72 | bool LexicallyOrderedDeclVisitor::VisitNamedDecl(const NamedDecl *D) { |
| 73 | std::string Path; |
| 74 | llvm::raw_string_ostream OS(Path); |
| 75 | assert(TraversalStack.back() == D); |
| 76 | for (const Decl *D : TraversalStack) { |
| 77 | if (isa<TranslationUnitDecl>(D)) { |
| 78 | OS << "/"; |
| 79 | continue; |
| 80 | } |
| 81 | if (const auto *ND = dyn_cast<NamedDecl>(D)) |
| 82 | OS << ND->getNameAsString(); |
| 83 | else |
| 84 | OS << "???"; |
| 85 | if (isa<DeclContext>(D) || isa<TemplateDecl>(D)) |
| 86 | OS << "/"; |
| 87 | } |
| 88 | if (EmitDeclIndices) |
| 89 | OS << "@" << Index++; |
| 90 | Matcher.match(OS.str(), D); |
| 91 | return true; |
| 92 | } |
| 93 | |
| 94 | bool LexicallyOrderedDeclVisitor::VisitDeclRefExpr(const DeclRefExpr *D) { |
| 95 | std::string Name = D->getFoundDecl()->getNameAsString(); |
| 96 | llvm::raw_string_ostream OS(Name); |
| 97 | if (EmitStmtIndices) |
| 98 | OS << "@" << Index++; |
| 99 | Matcher.match(OS.str(), D); |
| 100 | return true; |
| 101 | } |
| 102 | |
| 103 | TEST(LexicallyOrderedRecursiveASTVisitor, VisitDeclsInImplementation) { |
| 104 | StringRef Source = R"( |
| 105 | @interface I |
| 106 | @end |
| 107 | @implementation I |
| 108 | |
| 109 | int nestedFunction() { } |
| 110 | |
| 111 | - (void) method{ } |
| 112 | |
| 113 | int anotherNestedFunction(int x) { |
| 114 | return x; |
| 115 | } |
| 116 | |
| 117 | int innerVariable = 0; |
| 118 | |
| 119 | @end |
| 120 | |
| 121 | int outerVariable = 0; |
| 122 | |
| 123 | @implementation I(Cat) |
| 124 | |
| 125 | void catF() { } |
| 126 | |
| 127 | @end |
| 128 | |
| 129 | void outerFunction() { } |
| 130 | )"; |
| 131 | DummyMatchVisitor Visitor; |
| 132 | Visitor.DisallowMatch("/nestedFunction/", 6, 1); |
| 133 | Visitor.ExpectMatch("/I/nestedFunction/", 6, 1); |
| 134 | Visitor.ExpectMatch("/I/method/", 8, 1); |
| 135 | Visitor.DisallowMatch("/anotherNestedFunction/", 10, 1); |
| 136 | Visitor.ExpectMatch("/I/anotherNestedFunction/", 10, 1); |
| 137 | Visitor.DisallowMatch("/innerVariable", 14, 1); |
| 138 | Visitor.ExpectMatch("/I/innerVariable", 14, 1); |
| 139 | Visitor.ExpectMatch("/outerVariable", 18, 1); |
| 140 | Visitor.DisallowMatch("/catF/", 22, 1); |
| 141 | Visitor.ExpectMatch("/Cat/catF/", 22, 1); |
| 142 | Visitor.ExpectMatch("/outerFunction/", 26, 1); |
| 143 | EXPECT_TRUE(Visitor.runOver(Source, DummyMatchVisitor::Lang_OBJC)); |
| 144 | } |
| 145 | |
| 146 | TEST(LexicallyOrderedRecursiveASTVisitor, VisitMacroDeclsInImplementation) { |
| 147 | StringRef Source = R"( |
| 148 | @interface I |
| 149 | @end |
| 150 | |
| 151 | void outerFunction() { } |
| 152 | |
| 153 | #define MACRO_F(x) void nestedFunction##x() { } |
| 154 | |
| 155 | @implementation I |
| 156 | |
| 157 | MACRO_F(1) |
| 158 | |
| 159 | @end |
| 160 | |
| 161 | MACRO_F(2) |
| 162 | )"; |
| 163 | DummyMatchVisitor Visitor; |
| 164 | Visitor.ExpectMatch("/outerFunction/", 5, 1); |
| 165 | Visitor.ExpectMatch("/I/nestedFunction1/", 7, 20); |
| 166 | Visitor.ExpectMatch("/nestedFunction2/", 7, 20); |
| 167 | EXPECT_TRUE(Visitor.runOver(Source, DummyMatchVisitor::Lang_OBJC)); |
| 168 | } |
| 169 | |
| 170 | TEST(LexicallyOrderedRecursiveASTVisitor, VisitTemplateDecl) { |
| 171 | StringRef Source = R"( |
| 172 | template <class T> T f(); |
| 173 | template <class U, class = void> class Class {}; |
| 174 | )"; |
| 175 | DummyMatchVisitor Visitor(); |
| 176 | Visitor.ExpectMatch("/f/T@1", 2, 11); |
| 177 | Visitor.ExpectMatch("/f/f/@2", 2, 20); |
| 178 | Visitor.ExpectMatch("/Class/U@4", 3, 11); |
| 179 | Visitor.ExpectMatch("/Class/@5", 3, 20); |
| 180 | Visitor.ExpectMatch("/Class/Class/@6", 3, 34); |
| 181 | EXPECT_TRUE(Visitor.runOver(Source)); |
| 182 | } |
| 183 | |
| 184 | TEST(LexicallyOrderedRecursiveASTVisitor, VisitCXXOperatorCallExpr) { |
| 185 | StringRef Source = R"( |
| 186 | struct S { |
| 187 | S &operator+(S&); |
| 188 | S *operator->(); |
| 189 | S &operator++(); |
| 190 | S operator++(int); |
| 191 | void operator()(int, int); |
| 192 | void operator[](int); |
| 193 | void f(); |
| 194 | }; |
| 195 | S a, b, c; |
| 196 | |
| 197 | void test() { |
| 198 | a = b + c; |
| 199 | a->f(); |
| 200 | a(1, 2); |
| 201 | b[0]; |
| 202 | ++a; |
| 203 | b++; |
| 204 | } |
| 205 | )"; |
| 206 | DummyMatchVisitor Visitor(, |
| 207 | ); |
| 208 | |
| 209 | |
| 210 | |
| 211 | |
| 212 | Visitor.ExpectMatch("overridden TraverseStmt", 14, 3, 2); |
| 213 | Visitor.ExpectMatch("a@0", 14, 3); |
| 214 | Visitor.ExpectMatch("operator=@1", 14, 5); |
| 215 | Visitor.ExpectMatch("b@2", 14, 7); |
| 216 | Visitor.ExpectMatch("operator+@3", 14, 9); |
| 217 | Visitor.ExpectMatch("c@4", 14, 11); |
| 218 | Visitor.ExpectMatch("operator->@6", 15, 4); |
| 219 | Visitor.ExpectMatch("operator()@8", 16, 4); |
| 220 | Visitor.ExpectMatch("operator[]@10", 17, 4); |
| 221 | Visitor.ExpectMatch("operator++@11", 18, 3); |
| 222 | Visitor.ExpectMatch("operator++@14", 19, 4); |
| 223 | EXPECT_TRUE(Visitor.runOver(Source)); |
| 224 | } |
| 225 | |
| 226 | } |
| 227 | |