1f404ec04d
This is for when all we need is to access a field or call a getter: no need to write a lambda just to extract these. Assisted-by: claude
57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
//===- llvm/unittest/ADT/SmallVectorExtrasTest.cpp ------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// SmallVectorExtras unit tests.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/SmallVectorExtras.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include <type_traits>
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#include <vector>
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using testing::ElementsAre;
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namespace llvm {
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namespace {
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TEST(SmallVectorExtrasTest, MapToVector) {
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std::vector<int> Numbers = {1, 2, 3};
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auto Doubled = map_to_vector(Numbers, [](int X) { return X * 2; });
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EXPECT_THAT(Doubled, ElementsAre(2, 4, 6));
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// Member pointer.
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struct MapToVectorStruct {
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int X;
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int getX() const { return X; }
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};
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std::vector<MapToVectorStruct> Structs = {{1}, {2}, {3}};
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EXPECT_THAT(map_to_vector(Structs, &MapToVectorStruct::X),
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ElementsAre(1, 2, 3));
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// Member function pointer.
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EXPECT_THAT(map_to_vector(Structs, &MapToVectorStruct::getX),
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ElementsAre(1, 2, 3));
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}
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TEST(SmallVectorExtrasTest, FilterToVector) {
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std::vector<int> Numbers = {0, 1, 2, 3, 4};
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auto Odd = filter_to_vector<2>(Numbers, [](int X) { return (X % 2) != 0; });
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static_assert(std::is_same_v<decltype(Odd), SmallVector<int, 2>>);
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EXPECT_THAT(Odd, ElementsAre(1, 3));
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auto Even = filter_to_vector(Numbers, [](int X) { return (X % 2) == 0; });
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static_assert(std::is_same_v<decltype(Even), SmallVector<int>>);
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EXPECT_THAT(Even, ElementsAre(0, 2, 4));
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}
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} // end namespace
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} // namespace llvm
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