111 lines
4.6 KiB
C++
111 lines
4.6 KiB
C++
//===--- PrintASTTests.cpp ----------------------------------------- C++-*-===//
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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 "AST.h"
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#include "Annotations.h"
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#include "Protocol.h"
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#include "SourceCode.h"
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#include "TestTU.h"
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#include "clang/AST/RecursiveASTVisitor.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest-param-test.h"
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#include "gtest/gtest.h"
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namespace clang {
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namespace clangd {
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namespace {
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using ::testing::ElementsAreArray;
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struct Case {
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const char *AnnotatedCode;
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std::vector<const char *> Expected;
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};
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class ASTUtils : public ::testing::Test,
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public ::testing::WithParamInterface<Case> {};
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TEST_P(ASTUtils, PrintTemplateArgs) {
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auto Pair = GetParam();
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Annotations Test(Pair.AnnotatedCode);
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auto AST = TestTU::withCode(Test.code()).build();
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struct Visitor : RecursiveASTVisitor<Visitor> {
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Visitor(std::vector<Position> Points) : Points(std::move(Points)) {}
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bool VisitNamedDecl(const NamedDecl *ND) {
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if (TemplateArgsAtPoints.size() == Points.size())
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return true;
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auto Pos = sourceLocToPosition(ND->getASTContext().getSourceManager(),
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ND->getLocation());
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if (Pos != Points[TemplateArgsAtPoints.size()])
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return true;
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TemplateArgsAtPoints.push_back(printTemplateSpecializationArgs(*ND));
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return true;
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}
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std::vector<std::string> TemplateArgsAtPoints;
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const std::vector<Position> Points;
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};
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Visitor V(Test.points());
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V.TraverseDecl(AST.getASTContext().getTranslationUnitDecl());
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EXPECT_THAT(V.TemplateArgsAtPoints, ElementsAreArray(Pair.Expected));
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}
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INSTANTIATE_TEST_SUITE_P(ASTUtilsTests, ASTUtils,
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::testing::ValuesIn(std::vector<Case>({
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{
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R"cpp(
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template <class X> class Bar {};
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template <> class ^Bar<double> {};)cpp",
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{"<double>"}},
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{
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R"cpp(
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template <class X> class Bar {};
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template <class T, class U,
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template<typename> class Z, int Q>
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struct Foo {};
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template struct ^Foo<int, bool, Bar, 8>;
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template <typename T>
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struct ^Foo<T *, T, Bar, 3> {};)cpp",
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{"<int, bool, Bar, 8>", "<T *, T, Bar, 3>"}},
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{
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R"cpp(
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template <int ...> void Foz() {};
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template <> void ^Foz<3, 5, 8>() {};)cpp",
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{"<3, 5, 8>"}},
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{
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R"cpp(
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template <class X> class Bar {};
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template <template <class> class ...>
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class Aux {};
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template <> class ^Aux<Bar, Bar> {};
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template <template <class> class T>
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class ^Aux<T, T> {};)cpp",
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{"<Bar, Bar>", "<T, T>"}},
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{
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R"cpp(
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template <typename T> T var = 1234;
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template <> int ^var<int> = 1;)cpp",
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{"<int>"}},
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{
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R"cpp(
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template <typename T> struct Foo;
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struct Bar { friend class Foo<int>; };
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template <> struct ^Foo<int> {};)cpp",
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{"<int>"}},
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{
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R"cpp(
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template<class T>
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T S = T(10);
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template <class T>
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int ^S<T*> = 0;
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template <>
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int ^S<double> = 0;)cpp",
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{"<T *>", "<double>"}},
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})));
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} // namespace
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} // namespace clangd
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} // namespace clang
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