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// Copyright 2018 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/traits_bag.h"
namespace base {
enum class RequiredTrait {
A,
B,
C
};
struct BooleanTrait {};
struct NotAValidTrait {};
struct TestTraits {
// List of traits that are valid inputs for the constructor below.
struct ValidTrait {
ValidTrait(RequiredTrait);
ValidTrait(BooleanTrait);
};
template <class... ArgTypes,
class CheckArgumentsAreValid = std::enable_if_t<
trait_helpers::AreValidTraits<ValidTrait, ArgTypes...>::value>>
constexpr TestTraits(ArgTypes... args)
: required_trait(trait_helpers::GetEnum<RequiredTrait>(args...)),
boolean_trait(trait_helpers::HasTrait<BooleanTrait, ArgTypes...>()) {}
const RequiredTrait required_trait;
const bool boolean_trait;
};
#if defined(NCTEST_TRAITS_BAG_REQUIRED_TRAIT_NOT_SET) // [r"The traits bag is missing a required trait."]
constexpr TestTraits traits = {};
#elif defined(NCTEST_TRAITS_BAG_INVALID_TRAIT) // [r"no matching constructor for initialization of 'const TestTraits'"]
constexpr TestTraits traits = {RequiredTrait::A, NotAValidTrait{}};
#elif defined(NCTEST_TASK_TRAITS_MULTIPLE_REQUIRED_TRAIT) // [r"The traits bag contains multiple traits of the same type."]
constexpr TestTraits traits = {RequiredTrait::A, RequiredTrait::B};
#elif defined(NCTEST_TASK_TRAITS_REDUNDANT_BOOLEAN_TRAIT) // [r"The traits bag contains multiple traits of the same type."]
constexpr TestTraits traits = {RequiredTrait::A, BooleanTrait(),
BooleanTrait()};
#endif
} // namespace base
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