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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;
};
class MyMultipleInheritanceType
: public RTTIExtends<MyMultipleInheritanceType, MyDerivedType,
MyOtherDerivedType> {
public:
static char ID;
};
class MyTypeWithConstructor
: public RTTIExtends<MyTypeWithConstructor, MyBaseType> {
public:
static char ID;
MyTypeWithConstructor(int) {}
};
class MyDerivedTypeWithConstructor
: public RTTIExtends<MyDerivedTypeWithConstructor, MyTypeWithConstructor> {
public:
static char ID;
MyDerivedTypeWithConstructor(int x) : RTTIExtends(x) {}
};
char MyBaseType::ID = 0;
char MyDerivedType::ID = 0;
char MyOtherDerivedType::ID = 0;
char MyDeeperDerivedType::ID = 0;
char MyMultipleInheritanceType::ID = 0;
char MyTypeWithConstructor::ID = 0;
char MyDerivedTypeWithConstructor::ID = 0;
TEST(ExtensibleRTTI, isa) {
MyBaseType B;
MyDerivedType D;
MyDeeperDerivedType DD;
MyMultipleInheritanceType MI;
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));
EXPECT_TRUE(isa<MyBaseType>(MI));
EXPECT_TRUE(isa<MyDerivedType>(MI));
EXPECT_TRUE(isa<MyOtherDerivedType>(MI));
EXPECT_FALSE(isa<MyDeeperDerivedType>(MI));
EXPECT_TRUE(isa<MyMultipleInheritanceType>(MI));
}
TEST(ExtensibleRTTI, cast) {
MyMultipleInheritanceType MI;
MyDerivedType &D = MI;
MyOtherDerivedType &OD = MI;
MyBaseType &B = D;
EXPECT_EQ(&cast<MyBaseType>(D), &B);
EXPECT_EQ(&cast<MyDerivedType>(MI), &D);
EXPECT_EQ(&cast<MyOtherDerivedType>(MI), &OD);
EXPECT_EQ(&cast<MyMultipleInheritanceType>(MI), &MI);
}
TEST(ExtensibleRTTI, dyn_cast) {
MyMultipleInheritanceType MI;
MyDerivedType &D = MI;
MyOtherDerivedType &OD = MI;
MyBaseType &BD = D;
MyBaseType &BOD = OD;
EXPECT_EQ(dyn_cast<MyBaseType>(&BD), &BD);
EXPECT_EQ(dyn_cast<MyDerivedType>(&BD), &D);
EXPECT_EQ(dyn_cast<MyBaseType>(&BOD), &BOD);
EXPECT_EQ(dyn_cast<MyOtherDerivedType>(&BOD), &OD);
EXPECT_EQ(dyn_cast<MyBaseType>(&D), &BD);
EXPECT_EQ(dyn_cast<MyDerivedType>(&D), &D);
EXPECT_EQ(dyn_cast<MyMultipleInheritanceType>(&D), &MI);
EXPECT_EQ(dyn_cast<MyBaseType>(&OD), &BOD);
EXPECT_EQ(dyn_cast<MyOtherDerivedType>(&OD), &OD);
EXPECT_EQ(dyn_cast<MyMultipleInheritanceType>(&OD), &MI);
EXPECT_EQ(dyn_cast<MyDerivedType>(&MI), &D);
EXPECT_EQ(dyn_cast<MyMultipleInheritanceType>(&MI), &MI);
EXPECT_EQ(dyn_cast<MyDerivedType>(&MI), &D);
EXPECT_EQ(dyn_cast<MyOtherDerivedType>(&MI), &OD);
EXPECT_EQ(dyn_cast<MyMultipleInheritanceType>(&MI), &MI);
}
TEST(ExtensibleRTTI, multiple_inheritance_constructor) {
MyDerivedTypeWithConstructor V(42);
}
} // namespace
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