52 lines · cpp
1//===- unittest/Tooling/RecursiveASTVisitorTests/LambdaTemplateParams.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-exception6//7//===----------------------------------------------------------------------===//8 9#include "TestVisitor.h"10 11using namespace clang;12 13namespace {14 15// Matches (optional) explicit template parameters.16class LambdaTemplateParametersVisitor : public ExpectedLocationVisitor {17public:18 LambdaTemplateParametersVisitor() { ShouldVisitImplicitCode = false; }19 20 bool VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) override {21 EXPECT_FALSE(D->isImplicit());22 Match(D->getName(), D->getBeginLoc());23 return true;24 }25 26 bool VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) override {27 EXPECT_FALSE(D->isImplicit());28 Match(D->getName(), D->getBeginLoc());29 return true;30 }31 32 bool VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) override {33 EXPECT_FALSE(D->isImplicit());34 Match(D->getName(), D->getBeginLoc());35 return true;36 }37};38 39TEST(RecursiveASTVisitor, VisitsLambdaExplicitTemplateParameters) {40 LambdaTemplateParametersVisitor Visitor;41 Visitor.ExpectMatch("T", 2, 15);42 Visitor.ExpectMatch("I", 2, 24);43 Visitor.ExpectMatch("TT", 2, 31);44 EXPECT_TRUE(Visitor.runOver(45 "void f() { \n"46 " auto l = []<class T, int I, template<class> class TT>(auto p) { }; \n"47 "}",48 LambdaTemplateParametersVisitor::Lang_CXX2a));49}50 51} // end anonymous namespace52