| //===- unittest/Tooling/RecursiveASTVisitorTests/ImplicitCtor.cpp ---------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "TestVisitor.h" |
| |
| using namespace clang; |
| |
| namespace { |
| |
| // A visitor that visits implicit declarations and matches constructors. |
| class ImplicitCtorVisitor |
| : public ExpectedLocationVisitor<ImplicitCtorVisitor> { |
| public: |
| bool shouldVisitImplicitCode() const { return true; } |
| |
| bool VisitCXXConstructorDecl(CXXConstructorDecl* Ctor) { |
| if (Ctor->isImplicit()) { // Was not written in source code |
| if (const CXXRecordDecl* Class = Ctor->getParent()) { |
| Match(Class->getName(), Ctor->getLocation()); |
| } |
| } |
| return true; |
| } |
| }; |
| |
| TEST(RecursiveASTVisitor, VisitsImplicitCopyConstructors) { |
| ImplicitCtorVisitor Visitor; |
| Visitor.ExpectMatch("Simple", 2, 8); |
| // Note: Clang lazily instantiates implicit declarations, so we need |
| // to use them in order to force them to appear in the AST. |
| EXPECT_TRUE(Visitor.runOver( |
| "struct WithCtor { WithCtor(); }; \n" |
| "struct Simple { Simple(); WithCtor w; }; \n" |
| "int main() { Simple s; Simple t(s); }\n")); |
| } |
| |
| } // end anonymous namespace |