| 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 | |
|---|
| 11 | using namespace clang; |
|---|
| 12 | |
|---|
| 13 | namespace { |
|---|
| 14 | |
|---|
| 15 | // A visitor that visits implicit declarations and matches constructors. |
|---|
| 16 | class ImplicitCtorVisitor |
|---|
| 17 | : public ExpectedLocationVisitor<ImplicitCtorVisitor> { |
|---|
| 18 | public: |
|---|
| 19 | bool shouldVisitImplicitCode() const { return true; } |
|---|
| 20 | |
|---|
| 21 | bool VisitCXXConstructorDecl(CXXConstructorDecl* Ctor) { |
|---|
| 22 | if (Ctor->isImplicit()) { // Was not written in source code |
|---|
| 23 | if (const CXXRecordDecl* Class = Ctor->getParent()) { |
|---|
| 24 | Match(Name: Class->getName(), Location: Ctor->getLocation()); |
|---|
| 25 | } |
|---|
| 26 | } |
|---|
| 27 | return true; |
|---|
| 28 | } |
|---|
| 29 | }; |
|---|
| 30 | |
|---|
| 31 | TEST(RecursiveASTVisitor, VisitsImplicitCopyConstructors) { |
|---|
| 32 | ImplicitCtorVisitor Visitor; |
|---|
| 33 | Visitor.ExpectMatch(Match: "Simple" , Line: 2, Column: 8); |
|---|
| 34 | // Note: Clang lazily instantiates implicit declarations, so we need |
|---|
| 35 | // to use them in order to force them to appear in the AST. |
|---|
| 36 | EXPECT_TRUE(Visitor.runOver( |
|---|
| 37 | "struct WithCtor { WithCtor(); }; \n" |
|---|
| 38 | "struct Simple { Simple(); WithCtor w; }; \n" |
|---|
| 39 | "int main() { Simple s; Simple t(s); }\n" )); |
|---|
| 40 | } |
|---|
| 41 | |
|---|
| 42 | } // end anonymous namespace |
|---|
| 43 | |
|---|
