| // Copyright 2023 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // This is a "No Compile Test" suite. |
| // http://dev.chromium.org/developers/testing/no-compile-tests |
| |
| #include "base/types/variant_util.h" |
| #include "third_party/abseil-cpp/absl/types/variant.h" |
| |
| namespace base { |
| |
| // Cannot get the index of a type if the type is specified multiple times in |
| // the variant instantiation. |
| inline constexpr size_t kValue = VariantIndexOfType<absl::variant<int, int>, int>(); // expected-error {{constexpr variable 'kValue' must be initialized by a constant expression}} |
| // expected-error@base/types/variant_util.h:* {{Variant is not constructible from T}} |
| // expected-error@base/types/variant_util.h:* {{no matching conversion for functional-style cast}} |
| |
| // Should fail if the type is not mentioned in the variant instantiation at |
| // all. |
| inline constexpr size_t kValue2 = VariantIndexOfType<absl::variant<int>, bool>(); // expected-error {{constexpr variable 'kValue2' must be initialized by a constant expression}} |
| // expected-error@base/types/variant_util.h:* {{Variant is not constructible from T}} |
| // expected-error@base/types/variant_util.h:* {{no matching conversion for functional-style cast}} |
| |
| } // namespace base |
