74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
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//===- unittest/Tooling/RecursiveASTVisitorTests/NestedNameSpecifiers.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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// Check to ensure that nested name specifiers are visited.
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class NestedNameSpecifiersVisitor
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: public ExpectedLocationVisitor<NestedNameSpecifiersVisitor> {
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public:
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bool VisitRecordTypeLoc(RecordTypeLoc RTL) {
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if (!RTL)
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return true;
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Match(RTL.getDecl()->getName(), RTL.getNameLoc());
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return true;
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}
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bool TraverseNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS) {
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if (!NNS)
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return true;
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if (const NamespaceDecl *ND =
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NNS.getNestedNameSpecifier()->getAsNamespace())
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Match(ND->getName(), NNS.getLocalBeginLoc());
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return ExpectedLocationVisitor::TraverseNestedNameSpecifierLoc(NNS);
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}
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};
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TEST(RecursiveASTVisitor,
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NestedNameSpecifiersForTemplateSpecializationsAreVisited) {
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StringRef Source = R"(
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namespace ns {
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struct Outer {
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template<typename T, typename U>
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struct Nested { };
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template<typename T>
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static T x;
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};
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}
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template<>
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struct ns::Outer::Nested<int, int>;
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template<>
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struct ns::Outer::Nested<int, int> { };
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template<typename T>
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struct ns::Outer::Nested<int, T> { };
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template<>
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int ns::Outer::x<int> = 0;
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)";
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NestedNameSpecifiersVisitor Visitor;
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Visitor.ExpectMatch("ns", 13, 8);
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Visitor.ExpectMatch("ns", 16, 8);
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Visitor.ExpectMatch("ns", 19, 8);
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Visitor.ExpectMatch("ns", 22, 5);
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Visitor.ExpectMatch("Outer", 13, 12);
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Visitor.ExpectMatch("Outer", 16, 12);
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Visitor.ExpectMatch("Outer", 19, 12);
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Visitor.ExpectMatch("Outer", 22, 9);
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EXPECT_TRUE(Visitor.runOver(Source, NestedNameSpecifiersVisitor::Lang_CXX14));
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}
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} // end anonymous namespace
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