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//===- 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
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