#include "llvm/Support/Allocator.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
+#include <vector>
using namespace llvm;
-namespace llvm {
+// Check that the ArrayRef-of-pointer converting constructor only allows adding
+// cv qualifiers (not removing them, or otherwise changing the type)
+static_assert(
+ std::is_convertible<ArrayRef<int *>, ArrayRef<const int *>>::value,
+ "Adding const");
+static_assert(
+ std::is_convertible<ArrayRef<int *>, ArrayRef<volatile int *>>::value,
+ "Adding volatile");
+static_assert(!std::is_convertible<ArrayRef<int *>, ArrayRef<float *>>::value,
+ "Changing pointer of one type to a pointer of another");
+static_assert(
+ !std::is_convertible<ArrayRef<const int *>, ArrayRef<int *>>::value,
+ "Removing const");
+static_assert(
+ !std::is_convertible<ArrayRef<volatile int *>, ArrayRef<int *>>::value,
+ "Removing volatile");
+
+namespace {
TEST(ArrayRefTest, AllocatorCopy) {
BumpPtrAllocator Alloc;
static const uint16_t Words2[] = { 11, 4003, 67, 64000, 13 };
ArrayRef<uint16_t> Array2 = makeArrayRef(Words2, 5);
ArrayRef<uint16_t> Array1c = Array1.copy(Alloc);
- ArrayRef<uint16_t> Array2c = Array2.copy(Alloc);;
+ ArrayRef<uint16_t> Array2c = Array2.copy(Alloc);
EXPECT_TRUE(Array1.equals(Array1c));
EXPECT_NE(Array1.data(), Array1c.data());
EXPECT_TRUE(Array2.equals(Array2c));
EXPECT_NE(Array2.data(), Array2c.data());
+
+ // Check that copy can cope with uninitialized memory.
+ struct NonAssignable {
+ const char *Ptr;
+
+ NonAssignable(const char *Ptr) : Ptr(Ptr) {}
+ NonAssignable(const NonAssignable &RHS) = default;
+ void operator=(const NonAssignable &RHS) { assert(RHS.Ptr != nullptr); }
+ bool operator==(const NonAssignable &RHS) const { return Ptr == RHS.Ptr; }
+ } Array3Src[] = {"hello", "world"};
+ ArrayRef<NonAssignable> Array3Copy = makeArrayRef(Array3Src).copy(Alloc);
+ EXPECT_EQ(makeArrayRef(Array3Src), Array3Copy);
+ EXPECT_NE(makeArrayRef(Array3Src).data(), Array3Copy.data());
}
TEST(ArrayRefTest, DropBack) {
TEST(ArrayRefTest, Equals) {
static const int A1[] = {1, 2, 3, 4, 5, 6, 7, 8};
ArrayRef<int> AR1(A1);
- EXPECT_TRUE(AR1.equals(1, 2, 3, 4, 5, 6, 7, 8));
- EXPECT_FALSE(AR1.equals(8, 1, 2, 4, 5, 6, 6, 7));
- EXPECT_FALSE(AR1.equals(2, 4, 5, 6, 6, 7, 8, 1));
- EXPECT_FALSE(AR1.equals(0, 1, 2, 4, 5, 6, 6, 7));
- EXPECT_FALSE(AR1.equals(1, 2, 42, 4, 5, 6, 7, 8));
- EXPECT_FALSE(AR1.equals(42, 2, 3, 4, 5, 6, 7, 8));
- EXPECT_FALSE(AR1.equals(1, 2, 3, 4, 5, 6, 7, 42));
- EXPECT_FALSE(AR1.equals(1, 2, 3, 4, 5, 6, 7));
- EXPECT_FALSE(AR1.equals(1, 2, 3, 4, 5, 6, 7, 8, 9));
+ EXPECT_TRUE(AR1.equals({1, 2, 3, 4, 5, 6, 7, 8}));
+ EXPECT_FALSE(AR1.equals({8, 1, 2, 4, 5, 6, 6, 7}));
+ EXPECT_FALSE(AR1.equals({2, 4, 5, 6, 6, 7, 8, 1}));
+ EXPECT_FALSE(AR1.equals({0, 1, 2, 4, 5, 6, 6, 7}));
+ EXPECT_FALSE(AR1.equals({1, 2, 42, 4, 5, 6, 7, 8}));
+ EXPECT_FALSE(AR1.equals({42, 2, 3, 4, 5, 6, 7, 8}));
+ EXPECT_FALSE(AR1.equals({1, 2, 3, 4, 5, 6, 7, 42}));
+ EXPECT_FALSE(AR1.equals({1, 2, 3, 4, 5, 6, 7}));
+ EXPECT_FALSE(AR1.equals({1, 2, 3, 4, 5, 6, 7, 8, 9}));
ArrayRef<int> AR1a = AR1.drop_back();
- EXPECT_TRUE(AR1a.equals(1, 2, 3, 4, 5, 6, 7));
- EXPECT_FALSE(AR1a.equals(1, 2, 3, 4, 5, 6, 7, 8));
+ EXPECT_TRUE(AR1a.equals({1, 2, 3, 4, 5, 6, 7}));
+ EXPECT_FALSE(AR1a.equals({1, 2, 3, 4, 5, 6, 7, 8}));
ArrayRef<int> AR1b = AR1a.slice(2, 4);
- EXPECT_TRUE(AR1b.equals(3, 4, 5, 6));
- EXPECT_FALSE(AR1b.equals(2, 3, 4, 5, 6));
- EXPECT_FALSE(AR1b.equals(3, 4, 5, 6, 7));
+ EXPECT_TRUE(AR1b.equals({3, 4, 5, 6}));
+ EXPECT_FALSE(AR1b.equals({2, 3, 4, 5, 6}));
+ EXPECT_FALSE(AR1b.equals({3, 4, 5, 6, 7}));
+}
+
+TEST(ArrayRefTest, EmptyEquals) {
+ EXPECT_TRUE(ArrayRef<unsigned>() == ArrayRef<unsigned>());
+}
+
+TEST(ArrayRefTest, ConstConvert) {
+ int buf[4];
+ for (int i = 0; i < 4; ++i)
+ buf[i] = i;
+
+ static int *A[] = {&buf[0], &buf[1], &buf[2], &buf[3]};
+ ArrayRef<const int *> a((ArrayRef<int *>(A)));
+ a = ArrayRef<int *>(A);
+}
+
+static std::vector<int> ReturnTest12() { return {1, 2}; }
+static void ArgTest12(ArrayRef<int> A) {
+ EXPECT_EQ(2U, A.size());
+ EXPECT_EQ(1, A[0]);
+ EXPECT_EQ(2, A[1]);
+}
+
+TEST(ArrayRefTest, InitializerList) {
+ ArrayRef<int> A = { 0, 1, 2, 3, 4 };
+ for (int i = 0; i < 5; ++i)
+ EXPECT_EQ(i, A[i]);
+
+ std::vector<int> B = ReturnTest12();
+ A = B;
+ EXPECT_EQ(1, A[0]);
+ EXPECT_EQ(2, A[1]);
+
+ ArgTest12({1, 2});
+}
+
+// Test that makeArrayRef works on ArrayRef (no-op)
+TEST(ArrayRefTest, makeArrayRef) {
+ static const int A1[] = {1, 2, 3, 4, 5, 6, 7, 8};
+
+ // No copy expected for non-const ArrayRef (true no-op)
+ ArrayRef<int> AR1(A1);
+ ArrayRef<int> &AR1Ref = makeArrayRef(AR1);
+ EXPECT_EQ(&AR1, &AR1Ref);
+
+ // A copy is expected for non-const ArrayRef (thin copy)
+ const ArrayRef<int> AR2(A1);
+ const ArrayRef<int> &AR2Ref = makeArrayRef(AR2);
+ EXPECT_NE(&AR2Ref, &AR2);
+ EXPECT_TRUE(AR2.equals(AR2Ref));
}
} // end anonymous namespace