50 lines
1.8 KiB
C++
50 lines
1.8 KiB
C++
|
//===- IndexedAccessorTest.cpp - Indexed Accessor 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/ArrayRef.h"
|
||
|
|
#include "llvm/ADT/STLExtras.h"
|
||
|
|
#include "gmock/gmock.h"
|
||
|
|
|
||
|
|
using namespace llvm;
|
||
|
|
using namespace llvm::detail;
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
/// Simple indexed accessor range that wraps an array.
|
||
|
|
template <typename T>
|
||
|
|
struct ArrayIndexedAccessorRange
|
||
|
|
: public indexed_accessor_range<ArrayIndexedAccessorRange<T>, T *, T> {
|
||
|
|
ArrayIndexedAccessorRange(T *data, ptrdiff_t start, ptrdiff_t numElements)
|
||
|
|
: indexed_accessor_range<ArrayIndexedAccessorRange<T>, T *, T>(
|
||
|
|
data, start, numElements) {}
|
||
|
|
using indexed_accessor_range<ArrayIndexedAccessorRange<T>, T *,
|
||
|
|
T>::indexed_accessor_range;
|
||
|
|
|
||
|
|
/// See `llvm::indexed_accessor_range` for details.
|
||
|
|
static T &dereference(T *data, ptrdiff_t index) { return data[index]; }
|
||
|
|
};
|
||
|
|
} // end anonymous namespace
|
||
|
|
|
||
|
|
template <typename T>
|
||
|
|
static void compareData(ArrayIndexedAccessorRange<T> range,
|
||
|
|
ArrayRef<T> referenceData) {
|
||
|
|
ASSERT_TRUE(referenceData.size() == range.size());
|
||
|
|
ASSERT_TRUE(std::equal(range.begin(), range.end(), referenceData.begin()));
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
TEST(AccessorRange, SliceTest) {
|
||
|
|
int rawData[] = {0, 1, 2, 3, 4};
|
||
|
|
ArrayRef<int> data = llvm::makeArrayRef(rawData);
|
||
|
|
|
||
|
|
ArrayIndexedAccessorRange<int> range(rawData, /*start=*/0, /*numElements=*/5);
|
||
|
|
compareData(range, data);
|
||
|
|
compareData(range.slice(2, 3), data.slice(2, 3));
|
||
|
|
compareData(range.slice(0, 5), data.slice(0, 5));
|
||
|
|
}
|
||
|
|
} // end anonymous namespace
|