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//===- unittests/AST/DeclBaseTest.cpp --- Declaration tests----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Unit tests for Decl class in the AST.
//
//===----------------------------------------------------------------------===//
#include "clang/AST/DeclBase.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/Type.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/Basic/LLVM.h"
#include "clang/Tooling/Tooling.h"
#include "gtest/gtest.h"
using ::clang::BindingDecl;
using ::clang::ast_matchers::bindingDecl;
using ::clang::ast_matchers::hasName;
using ::clang::ast_matchers::match;
using ::clang::ast_matchers::selectFirst;
TEST(DeclGetFunctionType, BindingDecl) {
llvm::StringRef Code = R"cpp(
template <typename A, typename B>
struct Pair {
A AnA;
B AB;
};
void target(int *i) {
Pair<void (*)(int *), bool> P;
auto [FunctionPointer, B] = P;
FunctionPointer(i);
}
)cpp";
auto AST =
clang::tooling::buildASTFromCodeWithArgs(Code, /*Args=*/{"-std=c++20"});
clang::ASTContext &Ctx = AST->getASTContext();
auto *BD = selectFirst<clang::BindingDecl>(
"FunctionPointer",
match(bindingDecl(hasName("FunctionPointer")).bind("FunctionPointer"),
Ctx));
ASSERT_NE(BD, nullptr);
EXPECT_NE(BD->getFunctionType(), nullptr);
// Emulate a call before the BindingDecl has a bound type.
const_cast<clang::BindingDecl *>(BD)->setBinding(clang::QualType(), nullptr);
EXPECT_EQ(BD->getFunctionType(), nullptr);
}
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