| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkFunction.h" |
| #include "Test.h" |
| |
| static void test_add_five(skiatest::Reporter* r, SkFunction<int(int)>&& f) { |
| REPORTER_ASSERT(r, f(3) == 8); |
| REPORTER_ASSERT(r, f(4) == 9); |
| } |
| |
| static int add_five(int x) { return x + 5; } |
| |
| struct AddFive { |
| int operator()(int x) { return x + 5; }; |
| }; |
| |
| class MoveOnlyAdd5 : SkNoncopyable { |
| public: |
| MoveOnlyAdd5() {} |
| MoveOnlyAdd5(MoveOnlyAdd5&&) {} |
| MoveOnlyAdd5& operator=(MoveOnlyAdd5&&) { return *this; } |
| |
| int operator()(int x) { return x + 5; } |
| }; |
| |
| DEF_TEST(Function, r) { |
| // We should be able to turn a static function, an explicit functor, or a lambda |
| // all into an SkFunction equally well. |
| test_add_five(r, &add_five); |
| test_add_five(r, AddFive()); |
| test_add_five(r, [](int x) { return x + 5; }); |
| |
| // AddFive and the lambda above are both small enough to test small-object optimization. |
| // Now test a lambda that's much too large for the small-object optimization. |
| int a = 1, b = 1, c = 1, d = 1, e = 1; |
| test_add_five(r, [&](int x) { return x + a + b + c + d + e; }); |
| |
| // Makes sure we forward the functor when constructing SkFunction. |
| test_add_five(r, MoveOnlyAdd5()); |
| |
| // Makes sure we forward arguments when calling SkFunction. |
| SkFunction<int(int, MoveOnlyAdd5&&, int)> f([](int x, MoveOnlyAdd5&& addFive, int y) { |
| return x * addFive(y); |
| }); |
| REPORTER_ASSERT(r, f(2, MoveOnlyAdd5(), 4) == 18); |
| } |