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