blob: 43ab6a97cffdd41a895a7cfa73809ac493b67547 [file] [log] [blame]
//===- llvm/unittest/ADT/PointerUnionTest.cpp - Optional unit 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/ADT/PointerUnion.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
typedef PointerUnion<int *, float *> PU;
typedef PointerUnion<int *, float *, long long *> PU3;
typedef PointerUnion<int *, float *, long long *, double *> PU4;
struct PointerUnionTest : public testing::Test {
float f;
int i;
double d;
long long l;
PU a, b, c, n;
PU3 i3, f3, l3;
PU4 i4, f4, l4, d4;
PU4 i4null, f4null, l4null, d4null;
PointerUnionTest()
: f(3.14f), i(42), d(3.14), l(42), a(&f), b(&i), c(&i), n(), i3(&i),
f3(&f), l3(&l), i4(&i), f4(&f), l4(&l), d4(&d), i4null((int *)nullptr),
f4null((float *)nullptr), l4null((long long *)nullptr),
d4null((double *)nullptr) {}
};
TEST_F(PointerUnionTest, Comparison) {
EXPECT_TRUE(a == a);
EXPECT_FALSE(a != a);
EXPECT_TRUE(a != b);
EXPECT_FALSE(a == b);
EXPECT_TRUE(b == c);
EXPECT_FALSE(b != c);
EXPECT_TRUE(b != n);
EXPECT_FALSE(b == n);
EXPECT_TRUE(i3 == i3);
EXPECT_FALSE(i3 != i3);
EXPECT_TRUE(i3 != f3);
EXPECT_TRUE(f3 != l3);
EXPECT_TRUE(i4 == i4);
EXPECT_FALSE(i4 != i4);
EXPECT_TRUE(i4 != f4);
EXPECT_TRUE(i4 != l4);
EXPECT_TRUE(f4 != l4);
EXPECT_TRUE(l4 != d4);
EXPECT_TRUE(i4null != f4null);
EXPECT_TRUE(i4null != l4null);
EXPECT_TRUE(i4null != d4null);
}
TEST_F(PointerUnionTest, Null) {
EXPECT_FALSE(a.isNull());
EXPECT_FALSE(b.isNull());
EXPECT_TRUE(n.isNull());
EXPECT_FALSE(!a);
EXPECT_FALSE(!b);
EXPECT_TRUE(!n);
// workaround an issue with EXPECT macros and explicit bool
EXPECT_TRUE((bool)a);
EXPECT_TRUE((bool)b);
EXPECT_FALSE(n);
EXPECT_NE(n, b);
EXPECT_EQ(b, c);
b = nullptr;
EXPECT_EQ(n, b);
EXPECT_NE(b, c);
EXPECT_FALSE(i3.isNull());
EXPECT_FALSE(f3.isNull());
EXPECT_FALSE(l3.isNull());
EXPECT_FALSE(i4.isNull());
EXPECT_FALSE(f4.isNull());
EXPECT_FALSE(l4.isNull());
EXPECT_FALSE(d4.isNull());
EXPECT_TRUE(i4null.isNull());
EXPECT_TRUE(f4null.isNull());
EXPECT_TRUE(l4null.isNull());
EXPECT_TRUE(d4null.isNull());
}
TEST_F(PointerUnionTest, Is) {
EXPECT_FALSE(a.is<int *>());
EXPECT_TRUE(a.is<float *>());
EXPECT_TRUE(b.is<int *>());
EXPECT_FALSE(b.is<float *>());
EXPECT_TRUE(n.is<int *>());
EXPECT_FALSE(n.is<float *>());
EXPECT_TRUE(i3.is<int *>());
EXPECT_TRUE(f3.is<float *>());
EXPECT_TRUE(l3.is<long long *>());
EXPECT_TRUE(i4.is<int *>());
EXPECT_TRUE(f4.is<float *>());
EXPECT_TRUE(l4.is<long long *>());
EXPECT_TRUE(d4.is<double *>());
EXPECT_TRUE(i4null.is<int *>());
EXPECT_TRUE(f4null.is<float *>());
EXPECT_TRUE(l4null.is<long long *>());
EXPECT_TRUE(d4null.is<double *>());
}
TEST_F(PointerUnionTest, Get) {
EXPECT_EQ(a.get<float *>(), &f);
EXPECT_EQ(b.get<int *>(), &i);
EXPECT_EQ(n.get<int *>(), (int *)nullptr);
}
template<int I> struct alignas(8) Aligned {};
typedef PointerUnion<Aligned<0> *, Aligned<1> *, Aligned<2> *, Aligned<3> *,
Aligned<4> *, Aligned<5> *, Aligned<6> *, Aligned<7> *>
PU8;
TEST_F(PointerUnionTest, ManyElements) {
Aligned<0> a0;
Aligned<7> a7;
PU8 a = &a0;
EXPECT_TRUE(a.is<Aligned<0>*>());
EXPECT_FALSE(a.is<Aligned<1>*>());
EXPECT_FALSE(a.is<Aligned<2>*>());
EXPECT_FALSE(a.is<Aligned<3>*>());
EXPECT_FALSE(a.is<Aligned<4>*>());
EXPECT_FALSE(a.is<Aligned<5>*>());
EXPECT_FALSE(a.is<Aligned<6>*>());
EXPECT_FALSE(a.is<Aligned<7>*>());
EXPECT_EQ(a.dyn_cast<Aligned<0>*>(), &a0);
EXPECT_EQ(*a.getAddrOfPtr1(), &a0);
a = &a7;
EXPECT_FALSE(a.is<Aligned<0>*>());
EXPECT_FALSE(a.is<Aligned<1>*>());
EXPECT_FALSE(a.is<Aligned<2>*>());
EXPECT_FALSE(a.is<Aligned<3>*>());
EXPECT_FALSE(a.is<Aligned<4>*>());
EXPECT_FALSE(a.is<Aligned<5>*>());
EXPECT_FALSE(a.is<Aligned<6>*>());
EXPECT_TRUE(a.is<Aligned<7>*>());
EXPECT_EQ(a.dyn_cast<Aligned<7>*>(), &a7);
EXPECT_TRUE(a == PU8(&a7));
EXPECT_TRUE(a != PU8(&a0));
}
TEST_F(PointerUnionTest, GetAddrOfPtr1) {
EXPECT_TRUE((void *)b.getAddrOfPtr1() == (void *)&b);
EXPECT_TRUE((void *)n.getAddrOfPtr1() == (void *)&n);
}
TEST_F(PointerUnionTest, NewCastInfra) {
// test isa<>
EXPECT_TRUE(isa<float *>(a));
EXPECT_TRUE(isa<int *>(b));
EXPECT_TRUE(isa<int *>(c));
EXPECT_TRUE(isa<int *>(n));
EXPECT_TRUE(isa<int *>(i3));
EXPECT_TRUE(isa<float *>(f3));
EXPECT_TRUE(isa<long long *>(l3));
EXPECT_TRUE(isa<int *>(i4));
EXPECT_TRUE(isa<float *>(f4));
EXPECT_TRUE(isa<long long *>(l4));
EXPECT_TRUE(isa<double *>(d4));
EXPECT_TRUE(isa<int *>(i4null));
EXPECT_TRUE(isa<float *>(f4null));
EXPECT_TRUE(isa<long long *>(l4null));
EXPECT_TRUE(isa<double *>(d4null));
EXPECT_FALSE(isa<int *>(a));
EXPECT_FALSE(isa<float *>(b));
EXPECT_FALSE(isa<float *>(c));
EXPECT_FALSE(isa<float *>(n));
EXPECT_FALSE(isa<float *>(i3));
EXPECT_FALSE(isa<long long *>(i3));
EXPECT_FALSE(isa<int *>(f3));
EXPECT_FALSE(isa<long long *>(f3));
EXPECT_FALSE(isa<int *>(l3));
EXPECT_FALSE(isa<float *>(l3));
EXPECT_FALSE(isa<float *>(i4));
EXPECT_FALSE(isa<long long *>(i4));
EXPECT_FALSE(isa<double *>(i4));
EXPECT_FALSE(isa<int *>(f4));
EXPECT_FALSE(isa<long long *>(f4));
EXPECT_FALSE(isa<double *>(f4));
EXPECT_FALSE(isa<int *>(l4));
EXPECT_FALSE(isa<float *>(l4));
EXPECT_FALSE(isa<double *>(l4));
EXPECT_FALSE(isa<int *>(d4));
EXPECT_FALSE(isa<float *>(d4));
EXPECT_FALSE(isa<long long *>(d4));
EXPECT_FALSE(isa<float *>(i4null));
EXPECT_FALSE(isa<long long *>(i4null));
EXPECT_FALSE(isa<double *>(i4null));
EXPECT_FALSE(isa<int *>(f4null));
EXPECT_FALSE(isa<long long *>(f4null));
EXPECT_FALSE(isa<double *>(f4null));
EXPECT_FALSE(isa<int *>(l4null));
EXPECT_FALSE(isa<float *>(l4null));
EXPECT_FALSE(isa<double *>(l4null));
EXPECT_FALSE(isa<int *>(d4null));
EXPECT_FALSE(isa<float *>(d4null));
EXPECT_FALSE(isa<long long *>(d4null));
// test cast<>
EXPECT_EQ(cast<float *>(a), &f);
EXPECT_EQ(cast<int *>(b), &i);
EXPECT_EQ(cast<int *>(c), &i);
EXPECT_EQ(cast<int *>(i3), &i);
EXPECT_EQ(cast<float *>(f3), &f);
EXPECT_EQ(cast<long long *>(l3), &l);
EXPECT_EQ(cast<int *>(i4), &i);
EXPECT_EQ(cast<float *>(f4), &f);
EXPECT_EQ(cast<long long *>(l4), &l);
EXPECT_EQ(cast<double *>(d4), &d);
// test dyn_cast
EXPECT_EQ(dyn_cast<int *>(a), nullptr);
EXPECT_EQ(dyn_cast<float *>(a), &f);
EXPECT_EQ(dyn_cast<int *>(b), &i);
EXPECT_EQ(dyn_cast<float *>(b), nullptr);
EXPECT_EQ(dyn_cast<int *>(c), &i);
EXPECT_EQ(dyn_cast<float *>(c), nullptr);
EXPECT_EQ(dyn_cast_if_present<int *>(n), nullptr);
EXPECT_EQ(dyn_cast_if_present<float *>(n), nullptr);
EXPECT_EQ(dyn_cast<int *>(i3), &i);
EXPECT_EQ(dyn_cast<float *>(i3), nullptr);
EXPECT_EQ(dyn_cast<long long *>(i3), nullptr);
EXPECT_EQ(dyn_cast<int *>(f3), nullptr);
EXPECT_EQ(dyn_cast<float *>(f3), &f);
EXPECT_EQ(dyn_cast<long long *>(f3), nullptr);
EXPECT_EQ(dyn_cast<int *>(l3), nullptr);
EXPECT_EQ(dyn_cast<float *>(l3), nullptr);
EXPECT_EQ(dyn_cast<long long *>(l3), &l);
EXPECT_EQ(dyn_cast<int *>(i4), &i);
EXPECT_EQ(dyn_cast<float *>(i4), nullptr);
EXPECT_EQ(dyn_cast<long long *>(i4), nullptr);
EXPECT_EQ(dyn_cast<double *>(i4), nullptr);
EXPECT_EQ(dyn_cast<int *>(f4), nullptr);
EXPECT_EQ(dyn_cast<float *>(f4), &f);
EXPECT_EQ(dyn_cast<long long *>(f4), nullptr);
EXPECT_EQ(dyn_cast<double *>(f4), nullptr);
EXPECT_EQ(dyn_cast<int *>(l4), nullptr);
EXPECT_EQ(dyn_cast<float *>(l4), nullptr);
EXPECT_EQ(dyn_cast<long long *>(l4), &l);
EXPECT_EQ(dyn_cast<double *>(l4), nullptr);
EXPECT_EQ(dyn_cast<int *>(d4), nullptr);
EXPECT_EQ(dyn_cast<float *>(d4), nullptr);
EXPECT_EQ(dyn_cast<long long *>(d4), nullptr);
EXPECT_EQ(dyn_cast<double *>(d4), &d);
EXPECT_EQ(dyn_cast_if_present<int *>(i4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<float *>(i4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<long long *>(i4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<double *>(i4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<int *>(f4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<float *>(f4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<long long *>(f4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<double *>(f4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<int *>(l4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<float *>(l4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<long long *>(l4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<double *>(l4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<int *>(d4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<float *>(d4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<long long *>(d4null), nullptr);
EXPECT_EQ(dyn_cast_if_present<double *>(d4null), nullptr);
// test for const
const PU4 constd4(&d);
EXPECT_TRUE(isa<double *>(constd4));
EXPECT_FALSE(isa<int *>(constd4));
EXPECT_EQ(cast<double *>(constd4), &d);
EXPECT_EQ(dyn_cast<long long *>(constd4), nullptr);
auto *result1 = cast<double *>(constd4);
static_assert(std::is_same_v<double *, decltype(result1)>,
"type mismatch for cast with PointerUnion");
PointerUnion<int *, const double *> constd2(&d);
auto *result2 = cast<const double *>(constd2);
EXPECT_EQ(result2, &d);
static_assert(std::is_same_v<const double *, decltype(result2)>,
"type mismatch for cast with PointerUnion");
}
} // end anonymous namespace