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//===------ unittests/ExtensibleRTTITest.cpp - Extensible RTTI 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
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/ExtensibleRTTI.h"
#include "llvm/Support/Casting.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
class MyBaseType : public RTTIExtends<MyBaseType, RTTIRoot> {
public:
static char ID;
};
class MyDerivedType : public RTTIExtends<MyDerivedType, MyBaseType> {
public:
static char ID;
};
class MyOtherDerivedType : public RTTIExtends<MyOtherDerivedType, MyBaseType> {
public:
static char ID;
};
class MyDeeperDerivedType
: public RTTIExtends<MyDeeperDerivedType, MyDerivedType> {
public:
static char ID;
};
char MyBaseType::ID = 0;
char MyDerivedType::ID = 0;
char MyOtherDerivedType::ID = 0;
char MyDeeperDerivedType::ID = 0;
TEST(ExtensibleRTTI, isa) {
MyBaseType B;
MyDerivedType D;
MyDeeperDerivedType DD;
EXPECT_TRUE(isa<MyBaseType>(B));
EXPECT_FALSE(isa<MyDerivedType>(B));
EXPECT_FALSE(isa<MyOtherDerivedType>(B));
EXPECT_FALSE(isa<MyDeeperDerivedType>(B));
EXPECT_TRUE(isa<MyBaseType>(D));
EXPECT_TRUE(isa<MyDerivedType>(D));
EXPECT_FALSE(isa<MyOtherDerivedType>(D));
EXPECT_FALSE(isa<MyDeeperDerivedType>(D));
EXPECT_TRUE(isa<MyBaseType>(DD));
EXPECT_TRUE(isa<MyDerivedType>(DD));
EXPECT_FALSE(isa<MyOtherDerivedType>(DD));
EXPECT_TRUE(isa<MyDeeperDerivedType>(DD));
}
TEST(ExtensibleRTTI, cast) {
MyDerivedType D;
MyBaseType &BD = D;
(void)cast<MyBaseType>(D);
(void)cast<MyBaseType>(BD);
(void)cast<MyDerivedType>(BD);
}
TEST(ExtensibleRTTI, dyn_cast) {
MyBaseType B;
MyDerivedType D;
MyBaseType &BD = D;
EXPECT_EQ(dyn_cast<MyDerivedType>(&B), nullptr);
EXPECT_EQ(dyn_cast<MyDerivedType>(&D), &D);
EXPECT_EQ(dyn_cast<MyBaseType>(&BD), &BD);
EXPECT_EQ(dyn_cast<MyDerivedType>(&BD), &D);
}
} // namespace
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