1//===- unittest/Tooling/RecursiveASTVisitorTests/ImplicitCtor.cpp ---------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "TestVisitor.h"
10
11using namespace clang;
12
13namespace {
14
15// A visitor that visits implicit declarations and matches constructors.
16class ImplicitCtorVisitor : public ExpectedLocationVisitor {
17public:
18 bool VisitCXXConstructorDecl(CXXConstructorDecl *Ctor) override {
19 if (Ctor->isImplicit()) { // Was not written in source code
20 if (const CXXRecordDecl* Class = Ctor->getParent()) {
21 Match(Name: Class->getName(), Location: Ctor->getLocation());
22 }
23 }
24 return true;
25 }
26};
27
28TEST(RecursiveASTVisitor, VisitsImplicitCopyConstructors) {
29 ImplicitCtorVisitor Visitor;
30 Visitor.ExpectMatch("Simple", 2, 8);
31 // Note: Clang lazily instantiates implicit declarations, so we need
32 // to use them in order to force them to appear in the AST.
33 EXPECT_TRUE(Visitor.runOver(
34 "struct WithCtor { WithCtor(); }; \n"
35 "struct Simple { Simple(); WithCtor w; }; \n"
36 "int main() { Simple s; Simple t(s); }\n"));
37}
38
39} // end anonymous namespace
40

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source code of clang/unittests/Tooling/RecursiveASTVisitorTests/ImplicitCtor.cpp