1 | //===- unittest/Tooling/RecursiveASTVisitorTests/ImplicitCtor.cpp ---------===// |
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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 | |
11 | using namespace clang; |
12 | |
13 | namespace { |
14 | |
15 | // A visitor that visits implicit declarations and matches constructors. |
16 | class ImplicitCtorVisitor : public ExpectedLocationVisitor { |
17 | public: |
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 | |
28 | TEST(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 |