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/*
* Copyright 2017 WebAssembly Community Group participants
*
* 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 WABT_RESULT_H_
#define WABT_RESULT_H_
namespace wabt {
struct Result {
enum Enum {
Ok,
Error,
};
Result() : Result(Ok) {}
Result(Enum e) : enum_(e) {}
operator Enum() const { return enum_; }
Result& operator|=(Result rhs);
private:
Enum enum_;
};
inline Result operator|(Result lhs, Result rhs) {
return (lhs == Result::Error || rhs == Result::Error) ? Result::Error
: Result::Ok;
}
inline Result& Result::operator|=(Result rhs) {
enum_ = *this | rhs;
return *this;
}
inline bool Succeeded(Result result) {
return result == Result::Ok;
}
inline bool Failed(Result result) {
return result == Result::Error;
}
#define CHECK_RESULT(expr) \
do { \
if (Failed(expr)) { \
return ::wabt::Result::Error; \
} \
} while (0)
} // namespace wabt
#endif // WABT_RESULT_H_
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