/*
* Copyright ( C ) 2015 The Android Open Source Project
*
* Licensed under the Apache License , Version 2 . 0 ( the " License " ) ;
* you may not use this file except in compliance with the License .
* You may obtain a copy of the License at
*
* http : //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing , software
* distributed under the License is distributed on an " AS IS " BASIS ,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND , either express or implied .
* See the License for the specific language governing permissions and
* limitations under the License .
*/
#ifndef ART_RUNTIME_EXPERIMENTAL_FLAGS_H_
#define ART_RUNTIME_EXPERIMENTAL_FLAGS_H_
#include <ostream>
#include "base/casts.h"
#include "base/macros.h"
namespace art HIDDEN {
// Possible experimental features that might be enabled.
enum class ExperimentalFlags : uint32_t {
kNone = 0 x0000,
kMethodHandles = 0 x0004, // 0b00000100
};
constexpr ExperimentalFlags operator |(ExperimentalFlags a, ExperimentalFlags b) {
return enum_cast<ExperimentalFlags>(enum_cast(a) | enum_cast(b));
}
constexpr ExperimentalFlags operator &(ExperimentalFlags a, ExperimentalFlags b) {
return enum_cast<ExperimentalFlags>(enum_cast(a) & enum_cast(b));
}
inline std::ostream& operator <<(std::ostream& stream, ExperimentalFlags e) {
bool started = false ;
if ((e & ExperimentalFlags::kMethodHandles) != ExperimentalFlags::kNone) {
stream << (started ? "|" : "" ) << "kMethodHandles" ;
started = true ;
}
if (!started) {
stream << "kNone" ;
}
return stream;
}
} // namespace art
#endif // ART_RUNTIME_EXPERIMENTAL_FLAGS_H_
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